• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to an exhaust valve unit with a valve shaft rotatably mounted on a tubular section thereof, to which a valve is attached, and with a coupling provided between the valve shaft and a shaft. drive.
    公开号:FR3014143A1
    申请号:FR1461726
    申请日:2014-12-01
    公开日:2015-06-05
    发明作者:Sven Lehecka；Sebastian Gundlach
    申请人:KOHLHAGE AUTOMOTIVE & CO KG GmbH；
    IPC主号:
    专利说明:

    [0001] The invention relates to a valve unit, consisting of a tubular section, a valve shaft mounted on, and immersed therein, on which is provided a valve disposed in the tubular section and wherein the valve shaft is operatively connected to an output shaft of a drive means by a coupling which has on each of the shafts a coupling device provided integral in rotation with said shaft, and wherein the valve shaft is constrained by an energy accumulator in the axial direction. Such a valve unit is known from FR 2 943 114. The coupling is composed of a respective coupling device provided jointly in rotation and axially on the valve shaft and on the output shaft. an electric drive motor, in the form of disc-shaped members, and an interposed elastic coupling element, also formed in the form of a disc, which causes the transmission of torque between the discs and consequently between the motor output shaft and the valve shaft while exerting axial force on the two disks. Four tabs are cut in the circumferential direction for applying the axial force from the disk-shaped region of the coupling element, being axially folded by two alternately to each of the two discs. pressing it under axial prestressing. Such axial prestressing is usually usual to avoid axial vibration of the valve shaft and the resulting noises. For torque transmission from the motor-side disk to the coupling member and from the latter to the disk-side disk 5, two tabs are bent from each of the two disks to the other disk and engage in recesses of the disk. the window-shaped coupling element. Such a configuration must allow thermal coupling of the drive member and the output member by means of point or linear contacts. Another conical coil spring or wire wound cone spring coupling between a socket coupling device on the valve shaft and another coupling device which may be in the form of a a slot in the output shaft of an electric drive motor is shown in DE 10 2009 016 597. The devices of these documents do not, however, make it possible to satisfy in particular the ever higher requirements of valve stiffness, with precision and stability in rotation in defined intermediate positions and without delay, including in case of high flow rates and high turbulence of the exhaust gases and high temperatures. The devices DE 10 2009 016 597 are therefore generally only used for the control of opening and closing positions, since they are not suitable for precision control due to loose coil or conical springs. . CLEAN COPY Limits are in this case put to the use of a stiffer spring wire, since it is associated with the axial stress and with it to a greater wear of the bearings of the valve unit and of the actuator mechanism, precise intermediate positions and valve-free restraint-free retention can not be obtained thereby. In such solutions, the springs are also provided directly on the thermal axis and therefore in particular subjected to the corresponding stresses. However, the devices according to FR 2 943 114 only make it possible to meet the aforementioned requirements under certain conditions, since the relatively high number of components required for the transmission of torque and the elements engaged on each other to obtain a mounting effective assume relatively large tolerances, causing a fairly large game in the chain, which is itself cause of wear and play further aggravated in working condition, becoming increasingly important because of jerky excitations very frequent in the flow of exhaust gases. The spring washer provided between the two coupling disks is in turn subjected to a high thermal stress, especially as it is exposed to a significant heat radiation between the two disks in case of unfavorable convection. The present invention aims to overcome the disadvantages of the valve units known hitherto and to allow control as accurate as possible, with high reactivity, free of delay, insensitive to clean COPY turbulent and frequent flow rates, of the medium passing through the device. valve, to improve the heat resistance and the life of the devices used in intake or exhaust passage systems, in the latter case in connection in particular with cylinder deactivation, exhaust gas recirculation , for exhaust catalysts or for influencing combustion or exhaust noise, and which are subjected to high thermal stresses. The assembly must also be simplified and the cost of manufacture decreased. According to the invention, this is achieved for valve units of the kind mentioned above by means of measuring and the preparation of means in which coupling devices provided rotate respectively on the output shaft of the drive means and on the valve shaft are in direct engagement by force and rotationally solid connection with each other and / or by reduction of the components involved in torque transmission and / or by tolerance compensation and / or a wear compensation between the devices involved in the transmission of torque and / or by more favorable thermal positioning and configuration of the energy accumulator exerting the axial force and / or by improving the thermal environment with respect to the energy storage, in particular by improving cooling. The coupling devices may in this case be formed by a particularly disk-shaped component provided on at least one of the shafts, with a disk-shaped base body and at least one axial bridging section. such as a tab or tab, can start from at least one of the coupling devices, preferably radially spaced from the base body towards the other coupling device in shape-matching engagement therewith. But the two shafts may also comprise devices, in particular disc-shaped components, rotatably engaged with the other device by means of tabs, and the tabs of the two coupling devices may also rest on one the other. It is particularly advantageous that wear compensating and / or tolerance compensating measures are provided between the coupling components engaged one into the other, which can in particular be carried out in a simple manner in that tabs will engage in narrowing recesses of the other coupling component and wedge under pretension. In the case of lugs of the first axially extending coupling component, these may be supported by radially inwardly extending slot contours which tap into the other component of the coupling. coupling made in the form of a disk, and this under a pretension of the lugs directed radially inwards. The tolerances will thus be compensated between the coupling components engaged in one another and the wear formed between them and the axial and angular offset of the two shafts. With such an embodiment of the coupling components, the constraining energy accumulator 5 of the valve shaft can be provided between the coupling devices and made in particular as an economic helical pressure spring or as a spring washer, in particular to save space. The coupling itself will therefore comprise only two components involved in the torque transmission, engaging one into the other with shape matching in the peripheral direction, the tolerance chain being thus reduced, the resistance to the increased torsion, optimized cooling, in particular by better convection, and easier assembly. The two coupling devices can in this case be provided fixed on the corresponding shafts, in the p state. ex. welded, matted, riveted, etc. In particular for mounting reasons, or if such welding, casting or riveting is not envisaged, it may be advantageous to provide a connection by rotation between at least one of the coupling components and the associated shaft. As a result, the coupling component formed as a disk-shaped component may be in the form of a circular ring and consequently have a receiving opening for the shaft, a contour directed radially inward from the contour. inside thereof, p. ex. at least one lug directed radially inwards or a continuous bar crossing the opening, housed in an axial recess of the shaft, such as a slot. It will be particularly advantageous in this case that a device is provided in addition between the disc-shaped or ring-shaped component and the device shaft, which will be suitable for automatic retrofit or wear compensation. For this purpose, the slot provided in the shaft may be made by narrowing in the opposite direction to the shaft end, the tabs or the bar provided on the disk being able to penetrate more deeply due to wear under the shaft. constraint of the energy accumulator provided between the coupling devices. According to another characteristic of the invention, the sides of the slot form an angle of between 2 and 10 °, preferably between 2 and 5 °. According to another aspect of the invention, the elastic element may also be provided on the outside, in particular axially on the outside of the coupling devices, preferably on the face of the coupling device on the drive side, distant from the coupling device on the valve side. The elastic member will thus be in a thermally more favorable position by being further away from the exhaust stream. The first of the coupling devices, in most cases preferably the valve side, can then be provided with lugs directed towards the coupling device drive side, which will be in rotation with it, being fixed in radial slots of said coupling device CLEAN COPY made in disc form. They may also axially cross the coupling device on the axial drive side or protrude outwardly thereof and be constrained by a spring outside the coupling space, supported on the drive shaft. axial. A spring washer-shaped energy accumulator will be particularly indicated for this purpose, which will bear against the axial drive shaft by the inner contour of its annular base body, on the one hand, and against legs axial extension of the coupling device on the valve side by fingers or tongues directed radially outwardly, on the other hand, the valve shaft being elastically constrained. The coupling device drive side can in this case be made as previously described, as circular ring component with a receiving opening and a bar passing therethrough, housed in a slot of the drive shaft and s' pressing against shrunken slot contours. The spring washer provided axially behind may also be provided with a recess for the shaft and a central bar through this recess, which will then be functionally narrower than the bar of the coupling device. The spring washer and the coupling device may be coupled by means of a fixed connection in the axial direction, such as a bayonet connection, so that the spring will drive the coupling component into the recess which tapers off. drive shaft. However, an embodiment of the invention provides that at least one of the coupling devices is itself formed by an elastic member, such as a disk-shaped elastic member, such as a disc-shaped disc. or a spring washer, in rotation with the corresponding shaft on the one hand, and with the other coupling device, on the other hand. In the latter case, at least one of these devices may comprise bridging sections directed towards the other, making it possible to effect the connection in rotation between the coupling devices. For these thermal causes, it may be advantageous that the coupling device formed by the elastic member is disposed against the drive shaft, being further removed from the exhaust duct. Such an elastic member may be formed by a spring washer with a circular ring-shaped base body and tongues or fingers starting therefrom and engaging in slots of the other coupling device. Here too, the drive shaft can enter the receiving opening of the base body of the spring washer, the receiving opening to be traversed by a central bar making a shape match connection with the shaft, this being pushed back by the spring washer, mounted in a prestressing state, in a slot which tapers in the axial direction of the shaft, a connection by rotation automatically compensating for tolerances and wear being thus obtained between elastic member and the drive shaft. The coupling device on the valve side can be formed by a fixed coupling component provided on the shaft, provided with an annular or circular base body, from which tongues or arms extend axially towards the washer-spring, on the end portions of which are provided V-shaped recesses which tapering in the direction opposite to the arms or tongues of the spring washer which constrains them, so that a compensation mechanism results therefrom tolerances and wear between the coupling devices. According to another aspect of the invention, it will also be possible for a mechanism of the kind mentioned above, that the torque transmission is not effected by immediate and direct meshing with each other of the first and second devices. Coupling provided integral rotationally on the shafts, but by intercalation of a third coupling device presented between the two coupling devices, a device allowing a tolerance compensation and / or wear being provided by this aspect of the invention between at least one and at least one of the coupling devices. For this purpose, a coupling member may be used in the form of a plate spring, disk spring or spring washer, constituted by a circular base body, from which a plurality of tongues or arms extend, p. ex. four, which extend in particular radially outwardly and which have in their outer parts oblong recesses 30 extending in the peripheral direction and in the direction of the rope, where engage respectively two clean COPY tabs starting from each of coupling devices extending axially towards one another with narrowing zones. The tongues of the spring washer here prestressed in the axial direction ensure the axial prestressing of the valve shaft and the compensation of tolerances and / or wear of the components and their contours, as well as an axial or angular offset of the shafts. . Advantageously, the two coupling devices may consist of an annular base body, from which two tongues protrude in the radial direction. In combination with the tongue-like areas of the coupling devices and the coupling element, optimum convective heat dissipation will result, because the annular base bodies of the coupling devices as for the other forms - as well as the disk base body of the spring washer need only be dimensioned with reduced diameters. The coupling device drive side and the output side can then be provided fixed on the associated shaft, or at least one of the devices may, as described above, also present with its shaft a tolerance compensating connection and / or 'wear. Such a configuration of the coupling with three coupling devices will also make it possible to make the first and / or second coupling devices in the form of a spring washer, to provide their recess tabs or axial bridging sections cooperating with each other. CLEAN COPY bridging sections or recesses of the third coupling device. It will furthermore be advantageous if the bridging sections starting from the first coupling device are in particular irregularly distributed around the periphery, as well as the zones on the other coupling device with which they are connected in shape-matching fashion, to allow the assembly of the components involved in the transmission of torque only in a defined position relative to each other. Such a measurement may also be advantageous for the connection points of the shaft and the coupling device, in particular for those described above with automatic compensation of tolerances and wear, which can be obtained by asymmetrical arrangement of the cleft in the tree and the barbell bridging the tree. The invention will be discussed in detail with reference to FIGS. 1 to 14.
    [0002] These represent: FIG. 1 to 4 a first embodiment of the invention, FIG. 1 showing an exhaust valve unit as seen in section, FIG. 2 a section along the line II-II of FIG. 1, fig. 3 a perspective view of FIG. 1, and FIG. 4 an alternative embodiment of a detail of FIG. 2, FIG. 5 and 6 a fragment of an exhaust valve unit according to another variant of the invention, seen in elevation and in section along the line VI-VI, CLEAN COPY FIG. 7 to 10 a fragment of an exhaust valve unit according to another variant of the invention, seen in elevation and in section along the line VIII-VIII, seen in the direction of the arrow IX and seen in perspective, FIG. . 11 to 14 a fragment of an exhaust valve unit according to another variant of the invention, seen in elevation, in section along lines XII-XII and XIII-XIII, and seen in perspective.
    [0003] The exhaust valve unit 1 shown in FIG. 1 to 4 consists of a tubular section 2 which contains two bearings 3, 4 bearing smooth bearings 5, 6 where the valve shaft 7 is mounted. The pad 5 is made gastight by a cap 8. The valve 9 is attached to the valve shaft 7. The bearing 6 is functionally a gas-tight bearing, which is constructed, manufactured and mounted in accordance with German Patent Application 2013 003 981.9. On the side of the plain bearing 6, the shaft 7 protrudes a short length of the bearing and is fixedly connected to a disk 10, in particular being welded, matted, riveted, etc. Three bridging sections start from the annular base body of the disk 10 and extend axially in the form of tongues 11 which engage in the slots 12 of a disk 13 and form a solidary connection in rotation between the shaft 7 and the disc 13. The disc 13 is, as will be described later, integrally fixed in rotation to the output shaft 14 of a drive unit COPY 15 composed of an electric motor and a gear . The disks 10 and 13 thus form the coupling devices of the coupling K1 which couples the output shaft 14 and the valve shaft 7, provided integral in rotation on these shafts. The disc 13 has a central recess 16 which is immersed axially in the shaft 14, the central recess 16 being traversed by a bar or bar 18 which extends over the recess 16, the shaft 14 is provided with a slot 17 extending axially and surrounds the central bar 18 by the flanks 19, 20 delimiting this slot, resulting in a rotationally fixed connection, but movable in the axial direction, of the shaft 14 and the disc 13. A pressure spring helical 19 axial preload is placed between the disks 10 and 13, and resiliently pushes the bar 18 in the bottom of the slot 17 while elastically constricting the valve shaft 7 via the disk 10. The connection between the shaft 14 and the coupling device in the form of the disc 13 is made to compensate for the tolerances and to compensate for wear, the bottom of the slot-17 being provided in the form of a circular arc, in other words going thin. Such a connection may also be made in a simple manner, in that the shaft end 14 is provided with a polygonal section, and will shrink or present a conical extension towards its end portion, partially dipping therein in an at least substantially corresponding recess of the disk 13. CLEAN COPY As can be seen in FIG. 4, a self-adjusting tolerance compensating device is also provided between the coupling devices 10 and 13. The radial slots 12a are here made by narrowing radially towards the inside of the disk 13a and the tongues 11a are engaged therein. elastic prestressing directed radially inwards. The tolerances between the tongues 11a of the disk 10 and the slots 12a can thus be compensated, but also the tolerances of the disk-shaped base bodies 10 and 13, as well as the axial and angular offsets of the shafts 7 and 14. wear between the tabs 13a and the slots 12a is automatically overtaken.
    [0004] In the present embodiment, the drive unit 15 is connected by a removable connection to a receiving shell 20, which is housed by a shoulder 21 in a tubular bracket 22 where it is connected thereto, . ex. by welding. The console 22 is connected to the tubular section 2, p. ex. by welding, and it has at least on the lower point of its attachment with the tubular section 2 at least two openings 23 for discharging the condensation water, dirt, etc., or for aeration.
    [0005] At least one opening may however also be provided in the upper part of the console, improved heat dissipation by air flow thus adding to the convection promoting construction. The coupling K2 shown in FIG. 5 and 6 is composed of the first coupling device 26 with a circular ring base body, fixedly provided, in the form of a welded COPING on the valve shaft 25, and the second coupling device 28 provided for rotationally integral but movable axially on the output shaft 27 of a drive means such that the drive unit of FIG. 1. Three tongues 29 extending from the disk body 26 cover the axial spacing to the disk-shaped coupling component 28, axially pass through the slots 30 and form with them a rotationally fixed connection between the two coupling devices. 26, 28. The shaft 27 is housed in an opening 31 of the disk 28 but traversed by a central bar 32 formed on the disk 28, itself fixed in the slot 33, a connection secured in rotation with the shaft 27 being thus achieved. As in the preceding figs, tolerance compensation and wear compensation are also made possible here, the disc 28 being elastically clamped by its bar 32 in the shrink slot contour. For this purpose, a spring in the form of a spring washer or disc spring 34 having an annular base body 35 with a recess or opening 36 and tabs or tongues 37 extending radially towards the outside, is provided on the side of the coupling K2 or the second coupling device 28 remote from the valve shaft, in other words at a thermally favorable location. The tabs or tongues are preloaded axially during assembly and they also cause axial prestressing of the valve shaft 25. Like the disk 28, the opening 36 of the spring washer 34 is crossed CLEAN COPY by a bar 38, which is however thinner than the bar 32. The spring washer 34 is connected to the second coupling member 28 by a bayonet connection; the spring washer is provided for this purpose with tabs 39 extending axially, which pass through the disk 28 by slots 40 formed therein and whose sections 41 oriented in the peripheral direction maintain the disk 28 after guiding the legs 39 in the slots 40 and rotation of the spring washer 34 relative to the disk. The spring 34 thus pulls the bar 32 in the narrowed bottom of the slot 33 in the mounting state of the exhaust valve unit. In the embodiment shown in FIG. 7 to 10, the first of the two coupling devices 47, 48 which transmit the torque of the output shaft 45 of a drive to the valve shaft 46, in this case the coupling piece 47, is provided on the remote side of the valve and it is itself made as an elastic component. The latter has a circular ring base body 49 with a recess 50 and three tabs or tongues 51 starting from the circular ring base body 48, which, in the illustrated mounting state, bear under axial prestress on Slot contours 52 of the tabs 53, which extend from the annular base body 54 of the second coupling component 48, welded to the shaft 46, in the axial direction towards the first coupling component. The slits 52 are V-shaped, tapering in the force direction of the spring washer tongues, so as to be able to compensate for the tolerances between the coupling components or their contours and the axial and angular offsets of the coupling elements. and the wear on the tongues and on the contours of the slots 52. As in the previous figures, the first coupling component 49 is here also provided with a bar 55 passing through the recess 50, which is based on on narrowed slot contours 56 of the shaft 45, tolerance and wear compensation thus also being made possible for the drive shaft 45 / coupling component 47 connection, and with it precise control for the duration of life of the aggregate. Optimum heat dissipation will also be ensured by convection, since - seen in the axial direction of the coupling - the surface area of the disk-shaped components is substantially less than that occupied by the tabs on the periphery. In the coupling K 4 of the exhaust valve unit 20 of FIGS. 11 to 14, the spring providing the transmission of torque as well as the axial prestressing is provided in the form of a spring washer 61, axially between the two coupling devices 62 and 63 as the third coupling device and between all the engaged components and involved in torque transmission if they are not securely connected to one another, that is, a possibility of tolerance and wear compensation is provided between the output 64 of the drive and the coupling device 65, between the latter and the CLEAN COPY spring 61, and between the latter and the coupling device 63 fixed on the valve shaft 65, an optimum cooling being furthermore assured. The circular ring base body 66 of the coupling component 62 also has a recess 67 and a bar 68 passing therethrough, clamped by the spring 61 prestressed axially in the narrowed slot contour 69 of the shaft 64. The intermediate tolerances presented and the wear produced are thus compensated, which clearly stands out in particular from FIG. 14. Starting from the base body 66 of the coupling device 62, two tabs 70 extend radially projecting therefrom and then axially towards the other coupling device, and partially pass through their end portions 71. which tapers, slots 72 in the arms 73 of the spring washer which start from a circular spring washer base body 74 where they rest elastically by tightening the arms 73 of the spring washer in the first direction axial. The coupling component 63 is also provided with two tongues 76 extending from its circular ring base body, radially projecting and then in axial extension, the narrowed portions 77 of which partially pass through recesses 78 in the peripheral direction in the starting arms 79. of the spring washer base body, where they rest elastically by tightening the arms 79 of the spring washer in the other axial direction. This also results in a possibility of compensation of tolerances and wear compensation between the two coupling devices 62 and 63 fixed on the shafts 64 and 65 and the disc-shaped spring torque transmitter. Arms, tabs or tabs projecting from annular or circular base bodies of the coupling and spring bodies also ensure efficient cooling and heat dissipation and thermal deformation of the components involved in torque transmission, particularly washers. In this case, it will be practically impossible, or will, if it were to occur, be offset by the expected tolerance and / or wear adjustment measures. It is also advantageous to provide at least one of the pairs of contours in transmission of torque between them irregularly distributed p. ex. in the peripheral direction with respect to at least one other pair of such contours, in other words in FIG. 11 to 14, to distribute or irregularly configure p. ex. one of the tabs 70 and the arm 73 engaged with it relative to at least some of the others, to allow mounting in only one defined position of the components relative to each other. It will also be advantageous to shift the slot and the central bar relative to the center.
    [0006] The invention further relates to a valve unit, such as an exhaust valve unit, in particular for a motor vehicle, consisting of a valve body, a valve shaft mounted on, and immersed in it. ci, on which is provided a valve disposed in the valve body and wherein the valve shaft is operatively connected to a drive for CLEAN COPY rotate the valve, and where the valve body and the drive are connected one to the other by a support or a console in mounting state. Pneumatic or electric drives are used as drives or actuators, the latter being in the form of electric motors with or without gearing, whose output shaft is connected by a coupling to the valve shaft. Such valve units are used on internal combustion engines, in particular in an intake or exhaust passage system, and in the latter case, particularly in connection with cylinder deactivation, exhaust gas recirculation. , for exhaust catalysts or for influencing combustion or exhaust noise. Due to the relatively high weight of the drive units - pneumatic or electric motors as mentioned above, the latter most often coupled in addition to a gear, and also provided with a coupling - and these drive units representing a strongly oscillating mass , especially during startup, but also during driving, the brackets or consoles are subjected to extremely high stresses.
    [0007] Such supports or consoles serving as connecting member between valve body and actuator are in particular known from documents DE 10 2004 040 817 A1 and DE 195 26 143 A1 as supports made with an L shape.
    [0008] Supports made with a U-shape, where the "branches" of the "U" are orthogonal to the direction COPIE PROPRE of flow or parallel thereto and welded to the body, have been disclosed by DE 10 2004 043 662 B3, among others. DE 20 2006 003 593 UI, DE 10 2009 016 597 A1, DE 10 2009 013 815 A1 and a first embodiment of a console according to DE 10 2009 011 951 B4. The supports made with an L-shape should be considered as the least suitable embodiment, for reasons of resistance. But the U-shaped brackets have a stiffness profile strongly dependent on the excitation vector. Also, the legs of the U-shaped brackets perpendicular to the extension of the duct show resistance to tilting during dynamic excitations in the direction of flow or in the longitudinal direction of the valve body, which is substantially less than that during of dynamic excitations orthogonal to the flow direction. Consoles with branches parallel to the direction of flow have the opposite behavior. Both modes of execution are critical, depending on the case of load and use. Both the L-shaped and U-shaped brackets offer practically no protection to the bearing and seal against condensation or splashing water, dust, salt and other impurities, and therefore against corrosion. Some protection against the aforementioned influences is provided by the solutions of DE 699 27 323 T2 and US 20050109024 A1, but they involve complex fabrication and are expensive; they are provided with a valve body as a molded part CLEAN COPY with flange formed for the installation of another flange, which still supports another by means of a tubular part, the drive provided also with a flange being to be fixed on it.
    [0009] The solutions of DE 696 11 604 and US 6,598,619 are at least as expensive. An embodiment with a cylindrical valve body on which is mounted a U-shaped sheet metal support, which is formed a retaining edge in the form of a flange or tubing as a console, on which is stuck a protective piece receiving the driving motor or an opposing molded flange holding plate has been disclosed by DE 10 2010 027 930 A1. If it is true that the cylindrical bracket formed on the U-bracket here surrounds the closed bearing per se, the U-shaped support, however, allows dust, water spray, steam and dirt particles to penetrate. This embodiment is also expensive because of the relatively large number of relatively complex parts to manufacture, and the length of time for such a console is limited. It has also been attempted to manufacture the valve body and the console in a single piece of sheet metal, as represented by DE 94 19 537 Ul. The valve body consists of two symmetrical half-shells, preferably made by forging, the two half-shells each having a half-shell formed integrally perpendicular to the axis of the body, the two half-shells being contiguous and receiving ceramic half-pads for mounting the valve shaft. In addition, the half-shells formed of a single CLEAN COPY holding on the valve body and which together constitute the console are also used for fixing the drive, a piece of sheet metal being fixed for this purpose by its first end on the end faces of the half-shells - which is logically possible here only by welding, and the other end of the sheet metal part supports the drive. Without even taking into account the costly manufacture, a precise assembly and with it the sealing at the level of the bearing are not guaranteed because of the manufacturing inaccuracies associated with the chosen method and therefore inevitable during the assembly of the sheet metal parts without subsequent rectification. Thermal deformation is also inevitable because of the welding of the sheet metal part on the console 15 maintaining the bearing and therefore on the bearing itself. An obviously one-piece embodiment also of the formed cylindrical console valve body or cylindrical connector manifold formed for the attachment of the drive is a result of the second embodiment of DE 10 2009 011 951 B4. A support is provided between the connecting pipe and the drive, which has on the one hand a retaining section for driving and on the other hand a formed reception corresponding to the connecting pipe and by means of which the support and the connecting pipe are connected, in particular by welding. The length of the console is here also limited by the design, which is a disadvantage because of the action of heat on the drive, in particular on its electrical, electronic or plastic components. A CLEAN COPY of the thermal deformation of the valve shaft bearing is also unavoidable by welding the receiver and the connection manifold. The dimensioning of the diameter of the connection pipe is also limited. In addition splashes of water, dust, salt and other dirt or condensation water can not be removed following their penetration, resulting in corrosion and malfunctions. The present invention aims to achieve improved valve units, which can in particular be manufactured simply and economically and are distinguished by high rigidity, in particular a resistance to tilting including their console, and their reliability of operation. A suitable design must also allow to configure the stiffness of the consoles differently depending on the directions, so as to provide areas of greater rigidity, opposite to the main direction of the dynamic excitations, which will in particular allow to obtain a better resistance to loads and / or save material. Finally, to reduce the effects of heat on the drive, the spacing between the exhaust pipe and the drive should be optimized in a simple and economical way for maximum protection of the "inner life", so to speak, the entire exhaust valve, as well as the bearing and its sealing, but also the coupling, and drive, against dust and dirt particles, water spray, salt, vapors and corrosion, optimum cooling must also be obtained. CLEAN COPY According to the invention, this is obtained in that the console is made with a tubular shape. As a clean component, manufactured separately in itself, it is in this case positioned directly on the body by one of its end faces and is connected thereto by bonding material, in particular by welding, the laser beam welding being particularly indicated. The bracket is operably spaced radially from the bearing pad. In many cases, it is advantageous for the bracket to be closed around its periphery, and thus surround a cavity, a circular ring-shaped cross-section which may be the optimum solution, even with relatively small wall thicknesses, by its homogeneous stiffness profile also under significant excitations, including from different directions, and more so from a standard tube - economic profiled tube can be implemented and no expensive special tools will be required. In some cases, it may also be advantageous, especially for reasons of space, strength or cost, to provide the console with a cross section other than annular, and to provide it 25. ex. polygonal, elliptical or the like. The console can in this case be oriented so that the high bending resistance parts are directed to the strongest excitations. The thickness of material can thus be reduced. In other cases of application, it may be advantageous for the console to be at least partially CLEAN open on its periphery, ie p. ex. throughout its longitudinal extension, or at least on parts of its longitudinal extension on its periphery. For reasons of rigidity, inter alia, it may be advantageous if the wall surrounds more than 180 °, preferably more than 2/3, more precisely and especially 85% of the periphery, so as to leave only one slot or a narrow gap. The axis of symmetry of the console is included or surrounded, the lateral edges or longitudinally extending edges of the body are opposed to each other, the console tends to somehow have a closed shape. Because the peripheral edge by which the bracket rests on the body and is connected, in particular welded thereto, exceeds the crown line of the body curvature, high resistance to tilting is achieved, thereby saving material and place. In addition, the manufacture of such a console is simple and economical.
    [0010] Here too, the console may according to the application profile extend at least substantially circularly around its periphery, or have a shape other than circular, p. ex. with a polygonal cross section, but also an elliptical or C shape. The longitudinal edges of such consoles open on their periphery may extend parallel to one another, but also, advantageously for defined applications, 30 obliquely relative to each other and / or not CLEAN COPY parallel to the axis of the console, or even deviate from a straight line. The consoles closed on their periphery as well as those not closed on their periphery may according to their functional purpose define a straight or oblique cylindrical cavity in particular with respect to the axis of the body - or a conical or pyramidal cavity, but also a cavity different form from those mentioned above.
    [0011] In terms of resistance, it will be advantageous in most cases that the console is welded on the entire periphery to the exhaust duct, in some cases it may be more advantageous to weld only occasionally, and in other cases to exclude certain areas of the welding. This latter possibility will be considered especially in cases where, according to a complementary inventive concept, a clearance, ie a spacing will be provided on the lower parts of the console and the body opposite each other. This spacing may be formed by a groove on the body and / or by a recess on the console. Such clearance will allow particles of dirt or dust, water, salt, deposits, etc., present inside the console to exit, drain or be evacuated from it. corrosion is therefore also avoided inside the exhaust valve, the bearing and the coupling. The recesses will also allow heat dissipation.
    [0012] The provision of at least one such clearance at the lowest point of the console / body assembly will be functional COPY for both closed consoles and unclosed consoles on their periphery. On open consoles, it may be advisable to arrange it in such a way that the open part of the console associated with the body is the lower part. In particular for consoles closed on their periphery, it may be advantageous that at least one opening is also provided in the upper part, to optimize the thermal conditions for the bearing, the coupling and the actuator with its electrical components, electronic or plastic. If an insert such as a retaining plate is used to attach the drive to the console, it is advisable to provide an opening between it and the console. For better heat dissipation, it may also be advantageous to perforate the console along its length, and it may be advisable to provide this perforation in the direction least exposed to external influences such as splashing water. It will also be advantageous for the console to be at least partially covered by a lid-shaped part on the opposite side of the actuator, or sealed - except for the passage of the drive shaft - for exhaust possibly coming out of the bearing, but also dust, moisture, etc., can not get on or in the actuator with its plastic components, or on the electrical and electronic components. The lid-shaped part may also be provided with an edge folded over the axial portions of the console and welded to the console. This cover may also support a cover plate or retainer on which will be attached the drive. Tubing may also be formed on the cover plate or retention, preferably housed in the console where it will be centered. The invention will be discussed in detail with reference to FIGS. 15 to 19. These represent: FIG. A valve unit or exhaust valve unit in the direction of the axis of the valve body, FIG. 16 a section along the line II-II of FIG. 15, FIG. 17 a perspective view of a valve unit according to the invention, FIG. 18 a variant, consistent with the concept of the invention, corresponding to the fragment IV of the. Fig. 16, seen in enlargement, FIG. 19 a fragment between the V-V arrows, with another feature of the invention. As can be seen from fig. 15 to 17, the valve unit A consists of a valve body 101, preferably made of stainless steel, on which a valve shaft 104 is rotatably mounted by means of an upper bearing and a bearing. 102 and 103. The valve 105, shown here in the open position, is fixed on the shaft 104. The bearings 102 and 103 each consist of a bearing bearing 102a and 103a fixed to the body in a sealed manner. gas, where a respective support is provided CLEAN COPY 102b, 103b. These bearings 102 and 103 may in particular be executed in accordance with the German patent application P 10 2013 003981, included in the priority application P 10 2014 003133.
    [0013] The drive for adjusting the valve here consists of a drive unit 106 with electric motor and gear, which is fixed on a retaining plate or protection plate 107. The retaining plate is here fixed by means of a console 109 on the body 101, by intercalation of a cup-shaped sleeve 108, the retaining plate 107 being welded to the sleeve 108, the latter by its edge portion 108a to the console 109 and the latter to the body 101 The cylindrical bracket 109, which may be manufactured from a standard profile tube, preferably stainless steel, is fitted to the body contour over substantially most of its far end portion of the drive unit 106. - With the exception of two recesses 109a in the console 109 - and it is connected by welding to it. It is radially spaced from the bearing 102, so that the risk of thermal deformation is non-existent in this zone. On its far end portion of the body 101, the console 109 is made largely sealed by the sleeve 108 and its bottom 108b, which has only one recess 108c closely attached to the output shaft 110 of the unit 106. The output shaft 110 is - as is also apparent from FIG. 18 - connected to the valve shaft 104 by a coupling 111 which consists here of a clean copy disc 110a provided integral in rotation against the shaft 110, with radial slots on its outer periphery and, penetrating into them axial tabs 104a of a disc 104b connected to the shaft 104, and which can be made in accordance with one of the couplings described in the German patent application P 10 2013 019 956 - incorporated in the present application. In cooperation with the body 101 and the sleeve 108, the console 109 makes the bearing 102 and the coupling 111 largely sealed with respect to the external atmosphere and protects them from possible mechanical damage. Fouling by particles of dirt or dust, water, salt, is virtually excluded, they can be removed with the condensation water, deposits, residues of possible wear of the coupling or supports, by the interstices made in the form of the recesses 109a between the bushing 109 and the body 101 and which are provided in the lower parts in mounting state on the vehicle, where the console and the body are screwed together. -a-vis. The opening 108c closely contiguous with the shaft 110 largely protects the drive unit 106 against the possible exit of hot exhaust gases by the bearing. It may also be advantageous to provide at least one opening at least in the upper part of the console 109 or the socket 108, as indicated by the reference numeral 112, so that better heat dissipation can be achieved. This effect can be further improved if the console 109 or the sleeve 108 have several openings, such as those indicated by the reference sign 113, so if a perforation is substantially provided. As shown in FIG. 18, the attachment of the drive unit to the bracket 109, however, may also be effected by means of a rim 107a formed on the retaining plate 107 and centered in a groove 109b of the bracket 109. The welding of the console 109 and the retaining plate will be directly performed here. The cylindrical conformation shown here of the console offers optimum rigidity for several application cases, including in case of strong dynamic excitations from different directions, as well as protection against dirt. While figs. 15 to 18 represent a closed console on its periphery, it is a console open on its periphery which is shown in FIG. 19. The console 115 here an elliptical base shape, in this case the shape of a "C", it surrounds on more than half of its periphery a cavity, it is thus closed over more than 180 ° around its axis of symmetry, has two longitudinal edges or edges 115a, 115b opposite to each other and tends to a closed shape. It presents a great stability of this fact. It can also be oriented by its open part so that it is in the direction of the weakest excitation. Material can be saved, even in wall thickness. It may also be wise to provide the two ridges 115a, 115b in the lower portions of the console-mounted clean COPY on the vehicle. It may also be advisable to provide a clearance, as indicated by the reference sign 117, on the other lower part, also greater than the vertex point, where the console and the body are opposed to each other. As in the previous embodiment, openings or perforation may also be provided in the console 115 to improve the thermal conditions.
    [0014] Consoles according to the present invention may also be arranged or made on the connection piece, e.g. ex. depending on the available construction space, so that their axis is oblique to the axis of the connection piece and / or passes against it. The axis may also deviate from a line. CLEAN COPY
    权利要求:
    Claims (36)
    [0001]
    REVENDICATIONS1. Valve unit, consisting of a tubular section, a valve shaft mounted on, and immersed therein, on which is provided a valve disposed in the tubular section and wherein the valve shaft is operatively connected to a output shaft of a drive means by a coupling which comprises on each of the shafts a coupling device provided integral in rotation with said shaft, and wherein the valve shaft is constrained by an energy accumulator in the axial direction , characterized in that the two coupling devices are in direct contact with each other in shape and in solid rotation with one another by means of at least one bridging section of at least one of the coupling devices opposite to the other.
    [0002]
    2. Valve unit according to claim 1, characterized in that the energy accumulator is an elastic member resting on the two coupling devices.
    [0003]
    Valve unit according to Claim 1 or 2, characterized in that the energy accumulator is arranged in an active manner between the two coupling devices.
    [0004]
    4. Valve unit according to one of the preceding claims, characterized in that the energy accumulator is arranged between the two coupling devices.
    [0005]
    Valve unit according to one of the preceding claims, characterized in that the energy accumulator is a helical pressure spring.
    [0006]
    6. Valve unit according to one of claims 1 to 5, characterized in that the energy accumulator is a spring washer.
    [0007]
    The valve unit according to one of the preceding claims, characterized in that one of the coupling devices is a disk-shaped component with tabs extending axially.
    [0008]
    Valve unit according to claim 7, characterized in that the tabs are spaced radially from the disk-shaped component.
    [0009]
    The valve unit as claimed in claim 7 or 8, characterized in that the further coupling device is a disk-shaped basic body component and with recesses extending radially inwardly.
    [0010]
    Valve unit according to claim 9, characterized in that the recesses which extend in the radial direction have contours which become radially inward, on which the tabs of the other coupling device rest under elastic prestress in the radial direction.
    [0011]
    11. Valve unit according to one of claims 1 and 2, characterized in that the energy accumulator is disposed outside the coupling space.
    [0012]
    12. Valve unit, claim 11, characterized in that the energy accumulator is provided on the opposite side to the drive means.
    [0013]
    13. Valve unit according to one of the preceding claims, characterized in that at least one of the coupling devices is itself the energy accumulator.
    [0014]
    14. Valve unit according to one of the preceding claims, characterized in that the two coupling devices are fixedly connected to the shaft associated therewith.
    [0015]
    15. Valve unit according to one of the preceding claims, characterized in that at least one of the coupling devices is nevertheless displaceable in rotation axially in relation to the shaft associated therewith. 30 CLEAN COPY
    [0016]
    Valve unit according to one of the preceding claims, characterized in that a tolerance compensating and / or compensating wear connection is provided between the axially displaceable coupling device and its shaft.
    [0017]
    Valve unit according to Claim 16, characterized in that the axially displaceable coupling element is provided with a recess surrounding the shaft and engages with an axially extending slot of the shaft by at least a section directed radially inwards and from the inner contour of the recess.
    [0018]
    18. Valve unit, according to claim 17, characterized in that the section is a bar passing through the recess.
    [0019]
    19. A valve unit as claimed in claim 17 or 18, characterized in that the slot narrows away from the shaft end.
    [0020]
    20. A valve unit according to claim 19, characterized in that the sides of the slot form an angle of between 2 and 10 °, preferably between 2 and 5 °.
    [0021]
    21. Valve unit, where the energy accumulator is provided in the space outside the coupling devices, according to one of the preceding claims, characterized in that one of the components of the coupling, exceed axially thereof and are constrained by the energy accumulator in the axial direction.
    [0022]
    22. A valve unit according to claims 6 and 21, characterized in that the spring washer has an annular base body and resiliently bears against the first coupling component by means of tabs which extend radially towards the first coupling component. outside.
    [0023]
    23. A valve unit according to claims 6 and 21, characterized in that the spring washer surrounds the shaft, preferably the drive shaft by a recess provided in its annular base body and engages in the housing. axial slot recess of the drive shaft by a contour starting from the inner contours of the recess. 20
    [0024]
    Valve unit according to Claim 6 and one of Claims 21 to 23, characterized in that the further coupling component and the spring washer are axially connected to one another. 25
    [0025]
    25. A valve unit, wherein one of the coupling devices is itself the elastic component according to one of claims 2, 3, 6 to 8, 12 to 20, 22, 23, characterized in that the elastic component 30 COPY PROPREP presents a base body in the form of a circular ring from which tabs project radially outwards, which bear elastically against the other coupling component.
    [0026]
    Valve unit according to Claims 6 and 25, characterized in that the further coupling component is rotatably engaged with the tongues of the spring washer by axially extending tabs, in particular starting from basic body in the form of a circle or a circular ring.
    [0027]
    Valve unit according to claim 26, characterized in that the V-shaped tabs in the axial direction bear elastically on slots which tap into the tabs of the other coupling component.
    [0028]
    28. Valve unit according to claims 6 and 26, characterized in that the spring washer surrounds the shaft, preferably the drive shaft by a recess provided in its annular base body and engages in the recess in axially extending slot of the drive shaft by a contour starting from the inner contours of the recess.
    [0029]
    29. Valve unit, consisting of a tubular section, a valve shaft mounted on and immersed therein, on which there is provided a valve disposed in the tubular section and wherein the valve shaft is COPY PROPREelié by rotation to an output shaft of a drive means, by a coupling which comprises on the output shaft of a drive means a first coupling device integrally connected in rotation therewith and a second coupling device integrally connected in rotation to the valve shaft, and wherein the valve shaft is constrained by an energy accumulator in the axial direction, according to one of the preceding claims 2 to 28, wherein there is provided a third coupling device on the torque transmission path between the first and second coupling devices, and wherein at least one of the coupling devices is an elastic component with individual sections exerting a force of exits in the axial direction, at least one of the coupling devices having axially extending bridging sections with tapered end portions which partially dive and bear under resilient prestress in recesses provided in least one of the other coupling devices, and are engaged with torque transmission therewith.
    [0030]
    The valve unit according to claim 29, characterized in that the third coupling device is the elastic component having arms extending radially outwardly from a central base body, on the end portions of which recesses are provided in which torque-bearing sections are supported by bearing sections of the annular base bodies of the first and second coupling devices and extending axially towards the other respective coupling device, by partially diving by their narrowed parts.
    [0031]
    The valve unit according to claim 29, characterized in that the first and / or second coupling devices are the elastic component having arms extending radially outwardly from a central annular base body, on the end portions of which recesses are provided in which the bridging sections starting from the annular base body of the third coupling device and extending axially in the direction of the first and second devices are supported by torque transmission; coupling, partially dipping by their narrowed parts.
    [0032]
    Valve unit according to Claim 29, characterized in that the third coupling device is the elastic component having arms extending radially outwardly from a central base body, radial end portions of which depart from the bridging sections extending axially towards one of the other respective coupling devices and leaning with torque transmission by partially dipping their narrowed portions into recesses provided in the first and second coupling devices . CLEAN COPY
    [0033]
    Valve unit according to one of Claims 29 to 32, characterized in that the recesses and the axially extending bridging sections are provided in or on radially outer portions of the arms projecting radially from the bodies. annular base members of the first and second radial coupling devices.
    [0034]
    34. Valve unit according to one of claims 29 to 33, characterized in that a connection is provided between the circular ring-shaped base body of the first and / or second coupling device and the associated tree.
    [0035]
    35. Valve unit according to one of the preceding claims, characterized in that at least one of the pairs of contours of the coupling engaged with torque transmission between them is provided with an uneven distribution with respect to at least one another pair of such contours, and / or with a slot and a central bar staggered together relative to the center.
    [0036]
    36. Valve unit, such as an exhaust valve unit for a motor vehicle, consisting of a valve body, a valve shaft mounted on and immersed therein, on which a valve is provided disposed in the valve body and wherein the valve shaft is operatively connected to a drive for pivoting the valve, and wherein the valve body and the drive are connected to each other by a console in a state mounting device according to one of claims 1 to 28, characterized in that the bracket is a tubular profiled piece attached to the valve body. CLEAN COPY
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    同族专利:
    公开号 | 公开日
    DE102014017523A1|2015-06-03|
    FR3014143B1|2019-12-13|
    WO2015078432A1|2015-06-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102004043662B3|2004-09-08|2006-02-16|Benteler Automobiltechnik Gmbh|Exhaust gas return valve for internal combustion engine has exhaust channel in form of a first tubular piece carried by U-shaped holder, and second one linked to it|
    FR2943114A1|2009-03-13|2010-09-17|Faurecia Sys Echappement|VALVE FOR EXHAUST LINE|
    DE102011107088A1|2011-07-11|2013-01-17|Friedrich Boysen Gmbh & Co. Kg|Flap device, particularly exhaust flap device for selectively closing exhaust gas path in exhaust system of motor vehicle, has flap rotatably mounted around flap axis, actuator, particularly electrical actuator for rotation of flap|FR3074536A1|2017-12-06|2019-06-07|Faurecia Systemes D'echappement|EXHAUST LINE VALVE WITH EASY COUPLING BETWEEN ACTUATOR AND SHUTTER, AND METHOD OF ASSEMBLING SUCH VALVE|
    FR3087866A1|2018-10-30|2020-05-01|Renault|SEALLESS ACTUATOR VALVE ASSEMBLY|DE102009016597B4|2009-04-08|2012-10-25|Küster Holding GmbH|Exhaust flap drive for a motor vehicle|
    DE102013013387A1|2013-03-10|2014-09-11|Kohlhage Automotive GmbH & Co. KG|Bearing for a shaft, in particular in a valve unit, equipped with such a storage valve unit and method of manufacture|
    DE112014005448A5|2013-11-30|2016-08-11|Kohlhage Automotive GmbH & Co. KG|Valve unit, such as exhaust flap unit for motor vehicles|DE102015202211B4|2015-02-09|2017-06-01|smk systeme metall kunststoff gmbh & co. kg|Flap device for a motor vehicle|
    ES2686738T3|2015-09-14|2018-10-19|Bosal Emission Control Systems Nv|Valve unit that includes a mechanical coupler|
    DE102015222609A1|2015-11-17|2017-05-18|Eberspächer Exhaust Technology GmbH & Co. KG|Electric exhaust valve device|
    DE102016104102A1|2016-03-07|2017-09-07|Faurecia Emissions Control Technologies, Germany Gmbh|Drive for an exhaust flap|
    DE102016114703A1|2016-06-28|2017-12-28|Eberspächer Exhaust Technology GmbH & Co. KG|Coupling arrangement for rotational coupling of a pivot shaft of a valve cover of an exhaust valve with a drive member|
    DE102016114704A1|2016-07-05|2018-01-11|Eberspächer Exhaust Technology GmbH & Co. KG|Coupling arrangement for rotational coupling of a pivot shaft of a valve cover of an exhaust valve with a drive member|
    EP3269967B1|2016-07-05|2019-04-24|Eberspächer Exhaust Technology GmbH & Co. KG|Coupling assembly for rotational coupling of a swivel shaft of a flap shutter of an exhaust gas flap with a drive organ|
    DE102017127740A1|2017-11-23|2019-05-23|Eberspächer Exhaust Technology GmbH & Co. KG|adjustable flap|
    DE102017222465B4|2017-12-12|2021-05-06|smk systeme metall kunststoff gmbh & co. kg|Flap device for the exhaust system of an internal combustion engine|
    JP2019120252A|2017-12-28|2019-07-22|株式会社ミクニ|Valve device|
    DE102018123400A1|2018-09-24|2020-03-26|Eberspächer Exhaust Technology GmbH & Co. KG|Exhaust flap|
    DE102018123403A1|2018-09-24|2020-03-26|Eberspächer Exhaust Technology GmbH & Co. KG|Exhaust flap|
    DE102019103556A1|2019-02-13|2020-08-13|Eberspächer Exhaust Technology GmbH & Co. KG|Exhaust flap|
    法律状态:
    2016-01-22| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-07| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-08-03| PLSC| Publication of the preliminary search report|Effective date: 20180803 |
    2018-12-07| PLFP| Fee payment|Year of fee payment: 5 |
    2019-12-23| PLFP| Fee payment|Year of fee payment: 6 |
    2020-12-14| PLFP| Fee payment|Year of fee payment: 7 |
    2021-11-23| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013019956.5|2013-11-30|
    DE102013019956|2013-11-30|
    DE102014012601|2014-08-26|
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