• 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:
    1. A constant rarefaction carburetor, comprising a housing with a flow channel and first and second throttle valves placed in the latter, with a chalk in which a mixing chamber is formed, extending into the last fuel atomizer equipped with a fuel nozzle, placed in the next metering needle and a vacuum drive There is a moving body, the bodies in the body are two working chambers, one of which is connected to the mixing chamber, and the other to the atmosphere, and the needle is connected to the moving body and A connecting device with a first throttle valve, characterized in that, in order to simplify the design and improve the mixing quality, the dosing needle is at least partially located in the mixing chamber transverse to the axis of the flow channel and connected to the moving body of the vacuum drive; a mixing chamber, 2. The carburetor of claim 1, wherein the dosing needle is slotted, and the first throttle valve is provided with a connecting element, entering the slot and forming a connecting device with the latter. 3.Karbyurator on PP. 1 and 2, which is related to the fact that the diverging needle is connected to the movable organ with the possibility of angular displacement relative to the latter. 4.Karbyurator on PP. 1-3, characterized in that the metering needle is connected with the movable member with the possibility of lateral displacement relative to the latter. 5.Karbyurator on PP. 3 and 4, about t and h, and y and i with the fact that the podo mobile body is made with an annular cavity, and the dosing needle has an annular groove and is equipped with a connecting device rigidly mounted in the groove of the needle and capable of moving into. : annular cavity of the movable organ. 6.Karbyurator on PP. 1-5, about t DO characterized by movement; This organ is made in the form of a membrane provided with a spring and a device for preventing rotation of the membrane .I 7. The carburetor according to claim 6, characterized in that the device for preventing the rotation of the membrane is made in the form of a hollow element with a gland plate. 8.Karbyurator on PP. 1-7 ,. characterized in that the fuel atomizer is provided with an air deflector screen located above the fuel jet.
    公开号:SU1138050A3
    申请号:SU813366931
    申请日:1981-12-17
    公开日:1985-01-30
    发明作者:Моргенрот Генри
    申请人:Генри Моргенрот (С1М)；
    IPC主号:
    专利说明:

    9. Kaj 6ropaT, op no. 8, characterized in that the atomizer is movable relative to the body.
    10.Karbyurator on PP. 1-9, characterized in that the first throttle valve is rotatable in proportion to the displacement of the needle needle.
    11.Karbyurator on PP. 1-10, characterized in that the first throttle valve is provided with an axis rigidly connected to it, and the housing is provided with longitudinal slots for mounting an axis on it with the first throttle valve.
    12.Karbyurator on PP. 1-11, characterized in that the axis of the first throttle valve in the closing position of the latter is located outside the mixing chamber.
    13. Carburetor on PP. 1-12, characterized in that the second throttle valve is executed relative to the axis of rotation bent to form two parts located in different planes passing through the axis of rotation.
    14. The carburetor of claim 1, characterized in that the connecting device comprises a spring link.
    15. Carburetor according to Claim 1, characterized in that the connecting device comprises a link that is hingedly connected to the metering needle and the first throttle valve.
    16. A constant rarefaction carburetor for an internal combustion engine, comprising a housing with a flow channel and accommodated in the last first and second throttle valves, between which a mixing chamber is formed that goes to the last fuel atomizer equipped with a fuel nozzle, placed in the last metering needle and a vacuum drive, i.e., a movable organ forming two working chambers in the housing, one of which is connected to the mixing chamber and the other to the atmosphere, the dosing needle being connected to the moving member and using a connecting device with a first throttle valve, characterized in that the connecting device comprises an intermediate element made in the form of a plate, rigidly connected to the metering needle and the moving member by means of a connection made with the possibility of providing mutual angular displacement, moreover, the plate is located in the mixing chamber parallel to the plane passing through the axes of the metering needle and the flow channel, and is equipped with at least one connecting element associated with the first throttle and located in the mixing chamber. /
    17  A constant rarefaction carburetor for an Otto cycle internal combustion engine, comprising a housing with a flow channel and placed in the last first and second i throttle valves, between which a mixing chamber is formed that goes to the last fuel sprayer fitted with a fuel nozzle, placed in the last metering unit needle and vacuum drive, ikkmtsy mobile. the organ forming two working chambers in the housing, one of which is connected to the mixing chamber and the other to the atmosphere, the metering needle being connected to the moving organ and using a connecting device to the first throttle valve, rtl and h u and with the fact that the movable body is made in the form of a piston, equipped with a drive rod, connected with it by means of a connection, made with the possibility of providing mutual angular displacement, and a non-coupling device, located in the mixing chamber and providing proportional displacement of the first throttle valve and the metering needle.  111 The invention relates to mechanical engineering, in particular to permanent rarefaction carburetors.  Known carburetors with constant rarefaction include a housing with a flow channel and the first and second throttle valves placed last, between which a mixing chamber is formed, extending to the last fuel atomizer, equipped with a fuel nozzle, placed in the last dosing needle and a vacuum drive, having a movable body, there are two working chambers in the housing, one of which is connected to the mixing chamber and the other to the atmosphere, and the dosing needle is connected to the moving body and soup coupling devices - a first throttle D carburetors, however, due to known structural embodiment of complex coupling device located outside the flow channel, characterized by a considerable constructive complexity and poor charge operation due to emerging flow of the air flow pulsations.  The purpose of the invention is to simplify the design and improve the quality of mixing.  The goal is achieved by the fact that in a carburetor with constant vacuum, containing a housing with a flow channel and placed in the last first and second throttle valves, which are formed at the bottom of the mixing chamber, the chamber goes to pop (pednaya fuel gun equipped with a fuel jet, placed in the latter has a dosing needle and a vacuum drive, which has a moving member, which forms two working chambers in the housing, one of which is connected to the mixing chamber, and the other to the aerosphere, and the mixing needle With the movable unit and with the help of a connecting device with the first throttle, the metering needle is at least partially located in the mixing chamber across the axis of the flow channel and connected directly to the movable body of the vacuum drive, and the connecting device is located in the mixing chamber.  In this case, the metering needle is made with a slit, and the first throttle valve is provided with a connecting element that enters the slot and forms a connecting device with the latter.  The metering needle is connected to the movable body with the possibility of angular and lateral displacements relative to the latter, the movable organ is made with an annular cavity, and the metering needle has an annular groove and is equipped with a connecting device rigidly mounted in the groove of the needle and configured to move in the annular cavity of the movable organ.  The movable body is made in the form of a membrane, equipped with a spring and a device to prevent the membrane from rotating, made in the form of an annular element with a spring plate, the fuel atomizer equipped with a venting screen located above the fuel jet, and made movable relative to the body. .  The first throttle valve is rotatable in proportion to the movement of the metering needle and is provided with a rigidly connected axis, and the casing is provided with longitudinal slits for installing an axis with the first throttle valve in it, with the last throttle axis located in the closing position cameras.  The second throttle valve is curved relative to the axis of rotation to form two parts located in different planes passing through the axis of rotation, the connecting device comprising a spring link and a link hinged to the metering needle and the first throttle valve.  According to another embodiment of a carburetor with a constant vacuum for an internal combustion engine, comprising a housing with a flow channel and placed in the last first and second throttle valves, with which the mixing chamber is formed, going to the last fuel spray equipped with a fuel nozzle, placed in the last a dosing needle and a vacuum drive, a moving organ, C1 (5) in the case, two working chambers, one of which is connected to the mixing chamber, and the other to atm. the sphere, where the needle needle is connected with the movable organ and with the help of the connecting device with the first throttle valve, the connecting device contains an intermediate element made in the form of a flat plate rigidly connected with the metering needle and the movable member with the help of mutual angular displacement, the plate is located in the mixing chamber parallel to the plane of the metering needle passing through the axis and the flow channel, and is equipped with at least about The bottom of the connecting element associated with the first throttle valve and located in the mixing chamber.  According to another embodiment of a constant-vacuum carburetor for an internal combustion engine with an Otto cycle comprising a housing with a flow channel and accommodated in the last first and second throttle valves between which the mixing chamber is formed. a fuel sprayer emerging into the latter, fitted with a fuel jet, a metering needle placed in the latter, and a vacuum drive having a fluid body forming two working chambers in the housing, one of which is connected to the mixing chamber and the other to the atmosphere It is connected with a mobile organ and with the help of a connecting mouth.  The roystva - with the first drral plate, the movable body is made in the form of a piston, equipped with a drive shaft connected with it by means of a joint, c. Compatible with the possibility of mutual angular displacement, and carrying a connecting device located in the mixing chamber and providing proportional displacement of the first throttle valve and the metering needle.  FIG.  Figure 1 shows schematically the proposed constant-pressure carburetor, section I; in fig.  2 shows the connecting device according to FIG.  1 on an enlarged scale; in fig.  3 shows section A-A in FIG.  2; in fig.  4 shows a section BB in FIG.  one; on 1 0 5 - section bb In FIG.  I; in fig.  6 — a portion of FIG.  1 on an enlarged scale; in fig.  7 shows an embodiment of a connecting device between the dispensing needle and the first throttle valve; in fig.  8 the same, the second embodiment; Fig. 9 is the same as the third embodiment; in FIG.  10 is an embodiment of a carburetor with a constant vacuum for. internal combustion engine; in fig.  11 - section G-Y in FIG.  ten; in fig.  12 shows a second embodiment of a constant-vacuum carburetor for an internal combustion engine with an Otto cycle; in fig.  13 is a variant of the connection of the membrane with a metering needle.  A constant rarefaction carburetor (FIG.  1) comprises a housing 1 with a flow channel 2 having inlet and outlet sections 3 and 4, first and second throttle valves 5 and 6, between which a mixing chamber 7 is formed in the flow channel 2, leading to an atomizer 8 equipped with a fuel jet 9 , and placed in the last dispensing needle 10, made in one piece with the stem M.  The first throttle valve 5 is rigidly mounted on the axis 12 pivotally housed in the housing 1, and the second throttle valve 6 is rigidly mounted on the drive roller 13, kinematically connected with the control unit (not shown).  On the housing 1 there is a cylindrical protrusion 14, on which it is fastened with the help of a clamp 15 of the roof 16.  The last part and the protrusion 14 secure the peripheral part of the membrane 17, and then form a vacuum drive with them and the membrane 17 is the moving member of the latter.  The membrane 17 with the cylindrical protrusion 14 and the housing 1 forms the first working chamber 18 connected via the channel 19 with the atmosphere, and together with the lid 16 it forms the second working chamber 20 connected to the mixing chamber 7 by means of the opening 21 in the housing 1 and the tube 22, and The aperture 21 must be made in the housing 1 with respect to the flow behind the diffuser 23, made in the flow channel 2.  The membrane 17 is provided with a spring 24, one end of which rests on the clamp 16 and the other on the annular element 25 provided with a spring plate 26 conical and forming a device dp preventing the diaphragm 17 from turning around the vertical axis.  The annular element 25 is in contact with the thickened center 27 of the membrane 17.  In the thickened center 27, a cup-shaped element 28 is installed with a central opening 29 and a circular plate 30 with an opening 31 larger than the opening 29 adjacent to the end of the element 28 (FIG.  2 and 3).  The cup-shaped element 28 with a circular plate 30 forms an annular cavity 32 in the membrane 17 in. A bushing accommodates a connecting device of the rod II of the metering needle 10, the coupling device being made in the form of a figured spring washer 33 rigidly mounted in the annular groove 34 formed on the rod II.  The cup-shaped element 28, the plate 30 and the spring washer 33 form the connection of the metering needle 10 and the stem P with the membrane 17, and this connection allows for an angular and lateral displacement of the metering needle 10 relative to the membrane 17, since the spring washer 33 can be displaced in the groove 34 along the rod 11 and rotate relative to the latter.  The annular element 25 is associated with a thickened center 27 of the membrane 17 at.  the aid of the bulge 35 passing through the opening provided in the element 25.  The housing 1 is also made with a second cylindrical protrusion 36, located in the nile of her part.  By the protrusion 36 with the POM01DI clamp 15, a top shower chamber 37 is attached, provided with a sealing ring 38.  In the fuel chamber 37 a float 39 is installed with a lever 40 pivotally mounted on an axis 41 fixed in the housing 1, and. interacting with the fuel valve 42, which regulates the flow of liquid fuel from the supply channel 43, made in the protrusion 44 of the housing 1.  In the protrusion 44, a sprayer 8 is also installed, provided with a pin 45, which fits into the slot 46 and serves to orient the sprayer 8 both when assembling the carburetor and when it is constantly shifted upwards under the action of the spring 47 fitting the other end to the fuel chamber 37 .  1 06 The atomizer 8 has a central channel 48, in the upper part of which a fuel jet 9 is installed, the cross section of which is regulated by a metering needle 10, and in the lower part of the channel 48 there is a fuel jet 49 connecting the cavity of channel 48 to the internal cavity 50 of the fuel chamber 37, in which the fuel level is maintained constant by the float 39.  The sprayer 8 in the upper part is also equipped with an ear ring 51, which prevents the flow of fuel from the internal cavity 50 into the flow channel 2, in addition to the channel 48 of the spray gun 8, and the fuel nozzles 9 and 49 are also sealed in the spreader 8.  The latter is provided with an air deflector screen 52, which is located in the mixing chamber 7 in front of the fuel jet 9 with respect to the flow in the flow channel 2. As can be seen from FIG.  4, a screw 53 is screwed into the housing 1, the contact head 54 of which changes the axial position of the atomizer 8 in the housing 1 and the required adjustment of the fuel supply through the atomizer 8 is achieved.  The spring 47 is designed to ensure constant contact of the head 54 with the spreading agent 8, while the springs 55 of the screw 53 serve to prevent the spontaneous unscrewing of the latter.  The internal cavity 50 of the fuel chamber 37 is provided with a channel 56, which in the upper part is connected through a calibration hole 57 to the first working chamber 18 of the vacuum drive, through a calibration hole 58 to the mixing chamber 7 and through pipe 59 to the regulator 60, made for example in the form of a thermostatic valve or other similar devices.  As can be seen from FIG.  , 5 and 6, on the rod 11 is fixed, for example, by means of welding hardened. a thin plate 61, having a slot 62, into which the connecting element 63, mounted on the lever 64, is fastened to the first throttle valve 5, enters.  The thin plate 61 and the connecting element 63 are located in the mixing chamber 7 and form a connecting device between the metering needle 10 and the first throttle valve 5 in dp proportional to their displacement.  71138 As can be seen from FIG. 5, the axis 12 of the first throttle valve 5 is located in the last-closed position outside the mixing chamber 7 and is equipped with two bearing supports 65 screwed into housing I, the latter having longitudinal slots 66 that ensure the passage of the carburetor the ends of the axis 12 when installing the first throttle valve 5 in the housing 1 O to the bearing supports 65, which are then installed in the housing 1.  As can be seen from FIG.  1 and 3, in the housing 1, a guide bushing 67 for the stem II, having an opening 68, is made with a size that provides the necessary displacement of the rod 1 1 for adjusting its position.  The bushing 67 is guided after installation into the housing 1 by means of a 1 springs 69.  At the same time, the guide bush 67 serves to close the slot 70 of the housing 1, which allows the thin plate 61 of the rod 11 to pass when assembling and disassembling the carburetor.  As can be seen from FIG.  1, the second throttle valve 6 is formed with respect to the axis of rotation bent to form two parts located in different planes passing through the axis of rotation, the angle between the planes being approximately. 8 ° and depends on the distance of the edge of the second throttle valve 6 to the fuel jet nozzle 9.  The carburetor operates as follows.  When the engine is idling, the second throttle valve 6 is rotated clockwise by a small amount from its full closing position, indicated by the dash-dotted line.  Thus, the amount of the air-fuel mixture flowing through the outlet section 4 to the engine cylinders is adjusted.  The airflow through the passageway 2, which flows around the first throttle valve 5, causes the latter to move, as shown in FIG.  1 straight lines.  In this case, at the first throttle plate 5, an air pressure drop occurs, and a vacuum is formed in the mixing chamber 7, and a part of the achieved vacuum is provided by the diffuser 23.  The vacuum from the mixing chamber 7 through the opening 21 0 and the tube 22 is transferred to the second working chamber 20, and since the pressure in the first working chamber 18 is approximately atmospheric, the upward displacement of the membrane 17 occurs until the amplification pressure balance 24 is balanced.  When moving upward, the membrane 17 also moves the rod II with the metering needle 10, as a result of which the flow section of the fuel nozzle 9 increases, which provides increased fuel consumption.  The fuel flowing out of the atomizer 8 is mixed with the air passing through the mixing chamber 7, forming an air-fuel mixture, which through the half-open second throttle valve 6 flows through the outlet section 4 into the intake manifold (not shown further on into the engine cylinders.  When the second throttle valve 6 opens more, the air flow through the flow channel 2 increases, increasing the vacuum in the mixing chamber 7, causing the membrane 17 to move further up and simultaneously displace the rod 1I with the metering needle 10 and the first throttle valve 5 to open. more so.  Therefore, from the internal cavity 50 more fuel enters the channel 48 of the atomizer 8 through the fuel nozzle 49, and the fuel chamber 7 receives more fuel through the fuel nozzle 9, and the pressure in the first working chamber 18 of the vacuum drive remains almost constant. atmospheric, supported by channel 19.  The ratio of the values of the calibration holes 57 and 58 when the pipeline is closed 5.9 determines the amount of vacuum in the internal cavity 50, and this value of vacuum is proportional to the amount of vacuum in the mixing chamber 7.  The amount of air supplied from the controller 60 through line 59 allows for a change in the vacuum in the internal cavity 50 of the fuel chamber 37, regardless of the vacuum in the mixing chamber 7, t. e.  depending on the operating mode of the engine or other factors, such as, for example, temperature, pressure, barometric pressure, acceleration or deceleration of the engine, and the more air is supplied through pipeline 59, the higher the pressure in the internal cavity 50 and the greater Enrichment of the air-fuel mixture prepared by the carburetor is provided.  As can be seen from FIG.  1, the full stroke of the rod 11 is equal to S, during this period both movement of the first throttle valve 5 from the fully closed position, indicated by the dash-and-dot line, to the new open position, when the first throttle is placed; on the valve 5 is set to the horizontal position.  Moreover, the initial setting of the first throttle valve 3, the size of the lever 64 and the size of the plate 61 depend on the total,, stroke of the rod 11, as well as its required stroke for moving the first throttle valve 5 to the idle position.  As can be seen from FIG.  6, at this position, the air flow directs - with the flap 5 to the atomizer 8, but the air deflector screen 52 deviates from the fuel nozzle 9, which does not cause the last decrease in vacuum and prevents the air-fuel mixture that is not depleted but is compensated by changing the profile of the metering needle 10.  Therefore, the latter in the described carburetor is practically made conical.  The air deflector screen 52 also ensures that the adjustment of the fuel under the engine idling mode is achieved by longitudinal movement of the atomizer 8 with the screw 53, since the height of the screen 52 does not affect the amount of suction of the fuel jet 9, thus the flow rate is adjusted. fuel through the latter.  The stroke of the spray gun 8, in which the fuel consumption is controlled, reaches a value of up to 4 mm, when the cutoff value of the spray gun 8 remains almost constant, but changes
    the flow section of the fuel jet 9 due to its displacement relative to the metering needle 10. In connection with this, the requirements for the tonnage of the carburetor parts are reduced, and the requirements for accuracy are also reduced in connection with the described connection between the rod 11 and the diaphragm,
    and a longitudinal displacement of the membrane 83 and the plate 87. The latter is located in the mixing chamber 7 formed in the flow channel 80 between the first and second throttles 5 and 6, parallel to the plane passing through the axes of the metering needle 82 and pro-. exact channel 80. On the plate 87 17, allowing their angular and longitudinal relative displacement. According to one of the embodiments of the connecting device (Fig. 7), the latter comprises a link 71, pivotally connected to the plate 72 fixed on the rod I1, using the axis 73, and to the lever 64 fixed on the first throttle valve 5, using the axis 74 This embodiment of the connecting device provides movement of the throttle valve 5 and the rod 11 without transferring lateral or transverse loads from the latter. According to another embodiment of the connecting device device (Fig. 8), the latter comprises a plate spring 75 fixed on the rod 11 and pivotally connected with the axis 76 mounted on the lever 64. According to another embodiment of the connecting device (Fig. 9), the latter contains a torsion bar. spring 77 made of wire. The ends of the torsion spring 77 are welded respectively to the rod 11 and the axis 78 mounted on the lever 64 of the first throttle valve 5. A constant-vacuum carburetor for an internal combustion engine (FIGS. 10 and 11) includes a housing 79 with a flow channel 80, a raspee 81 placed in the latter, a metering needle 82 and a vacuum drive having a movable organ in the form of a membrane 83, in a thickened center 84 of which a ring 85 is fixed with a pin 86 installed in it, a connecting device has a meter; in the metering needle 10 and a membrane 83 it contains an intermediate The first element, made in the form of a flat plate 87, to the bottom of which the rod element 88 of the metering needle 82 is welded, and the upper part has an oblong hole 89 through which the pin 86 passes, and the upper end of the plate 87 is installed in a ring 85 with a gap, That is provided by a mutual angular groove 90, into which the connecting element 63 of the lever 64 is attached, mounted on the first throttle valve 5. In the housing 79 a guide 91 plate is installed, having an oblong hole 92 through which the plates pass 87. The carburetor of FIG. 10 and 11 is carried out similarly to the operation of the carburetor of FIG. . However, the execution of the rytor carbure of FIG. 10-11 ensures that its labor intensity is reduced due to simplified technology and reduced required manufacturing tolerances. At the same time, due to the reduction in the weight of the connecting parts and the reduction in friction between them, the hysteresis of displacement is reduced, which increases the accuracy of the dosing of the supply of the air-fuel mixture to the engine. According to another embodiment, neither a carburetor with a constant vacuum. For an internal engine with an Otto cylinder (Fig. 12), the mobile body of the vacuum drive is made in the form of a piston 93 equipped with a rod 94, made in one piece with the dosing needle 10. Piston 93 has a central element 95 with an internal cavity 96 in which the female part 97 is placed, is dressed on a spherical tip 98, made on; the end of the rod 94 opposite to the placement of the metering needle 10. The female part 97 has a guide ring 99, which is taken from the position of movement in the central element 95 in a plane perpendicular to the direction of the longitudinal movement of the piston 93, so that together with the ball 50, 12 the terminator 98 provides relative angular and lateral displacement of the metering needle 10 and the piston. 93. The remaining elements of the carburetor of FIG. 12 are identical to those of the carburetor of FIG. 1-6. The operation of the carburetor of FIG. 12 ana. logical operation of the carburetor of FIG. 16, only in the carburetor of FIG. 12, the lateral forces generated in the vacuum drive are transmitted to the housing 1 through the side surface of the rail 93. As can be seen from FIG. 13, the connection of the metering needle with the thickened center 27 of the membrane 17 can be performed similarly to the connection of the piston 93 with the drive rod 94 (FIG. 12). For this purpose, the rod I must be equipped with a ball-tip 100 with a female part 101 having a guide ring 102, and in the thickened center 27 of the membrane 17 a central element 103 with an internal cavity 104 is installed, in which the ball-tip 100 with a female part 101 is placed. The & Kuum drive in FIG. 13 occurs similarly to the operation of a vacuum drive in the carburetor of FIG. i-6. Thus, the proposed implementation of the carburetor with constant vacuum and its versions simplify its design due to the simple implementation of the connecting parts between the carburetor elements, and also improves: the quality of mixing by setting the distribution of air flow of fuel and surrounding fuel-air mixture - bureau
    four
    / i-x)
    28
    eleven
    Fig.Z
    53
    five
    fig L
    66
    / J
    FIG. 6
    73 72
    b
    85
    SO
    eight{
    /
    79
    36
    Phi. /ABOUT
    86 85 26
    Fig.I
    2if
    HUFf
     mf lgzos: tt
    Fig, / J
    9c
    Phie. 12
    t
    权利要求:
    Claims (17)
    [1]
    1. A carburetor with a constant vacuum, comprising a housing with a flow channel and throttles located in the last first and second throttles, between which a mixing chamber is formed that extends into the last fuel atomizer, equipped with a fuel nozzle, a metering needle placed in the latter, and a vacuum drive having a movable member forming two working chambers in the housing, one of which is connected to the mixing chamber, and the other to the atmosphere, and the metering needle is connected to the movable organ and, using device - with the first throttle, characterized in that, in order to simplify the design and improve the quality of mixing, the metering needle is at least partially located in the mixing chamber across the axis of the flow channel and connected directly to the movable body of the vacuum drive, and the connecting device is located in mixing chamber
    [2]
    2. Carburetor according to π. 1, characterized in that the metering needle is made with a slot, and the first throttle valve is provided with a connecting element that enters the slot and forms a connecting device with the latter.
    [3]
    3. The carburetor according to paragraphs. 1 and 2, characterized in that the metering needle is connected to the movable body with the possibility of angular displacement relative to the latter.
    [4]
    4. The carburetor according to paragraphs. 1-3, characterized in that the metering needle is connected to the movable body with the possibility of lateral displacement relative to the latter.
    [5]
    5. The carburetor according to paragraphs. 3 and 4, characterized in that the movable body is made with an annular cavity, and the metering needle has an annular groove and is equipped with a connecting device rigidly mounted in the groove of the needle and made to move in the annular cavity of the movable body.
    [6]
    6. Carburetor according to paragraphs. 1-5, characterized by the fact that the mobile- "at. the organ is made in the form of a membrane, 2Z equipped with a spring and adapted to prevent rotation of the Membrane ** **.
    [7]
    7. The carburetor according to claim 6, characterized in that the device for preventing the rotation of the membrane is made in the form of an annular element with a spring plate ..
    [8]
    8. The carburetor according to paragraphs. 1-7, from the reflective screen located above the fuel jet.
    >
    characterized by the fact that the fuel atomizer is equipped with an air1138050
    [9]
    9. Carburetor according to π. 8, characterized in that the sprayer is made movable relative to the housing.
    [10]
    10. The carburetor according to paragraphs. 1-9, characterized in that the first throttle valve is rotatable in proportion to the movement of the metering needle.
    [11]
    11. The carburetor according to paragraphs. 1-10, characterized in that the first throttle is provided with an axis rigidly connected to it, and the housing is provided with longitudinal slots for mounting an axis therein with a first throttle.
    [12]
    12. The carburetor according to paragraphs. 1-11, characterized in that the axis of the first throttle in the closing position of the latter is located outside the mixing chamber.
    [13]
    13. The carburetor according to paragraphs. 1-12, characterized in that the second throttle is made relative to the axis of rotation curved with the formation of two parts located in different planes passing through the axis of rotation.
    [14]
    14. Carburetor according to π. 1, characterized in that the connecting device comprises a spring link,
    [15]
    15. The carburetor according to claim 1, characterized in that the connecting device comprises a link pivotally connected to the metering needle and the first throttle.
    [16]
    16. A carburetor with a constant vacuum for an internal combustion engine, comprising a housing with a flow channel and throttles located in the last first and second throttles, between which a mixing chamber is formed, leading to the last fuel atomizer equipped with a fuel nozzle, a metering needle and a vacuum drive placed in the latter having a movable body forming in the housing two working chambers, one of which is connected to the mixing chamber, and the other to the atmosphere, and the metering needle is connected with and using a connecting device with a first throttle valve, characterized in that the connecting device contains an intermediate element made in the form of a flat plate rigidly connected to a metering needle and a movable body using a connection made with the possibility of mutual angular displacement, the plate is located in the mixing chamber parallel to the plane passing through the axis of the metering needle and the flow channel, and is equipped with at least one connecting element ohms, connected with the first throttle valve and arranged in the mixing chamber. <
    [17]
    17. A carburetor with a constant vacuum for an internal combustion engine with an Otto cycle, comprising a housing with a flow channel and 2 throttle valves located in the last first and second, between which a mixing chamber is formed that extends into the last fuel atomizer equipped with a fuel nozzle located in the last metering a needle and a vacuum drive having a movable body forming two working chambers in the housing, one of which is connected to the mixing chamber, and the other to the atmosphere, and the metering needle connected with the movable body and, with the help of the connecting device, with the first throttle valve, characterized in that the movable body is made in the form of a piston equipped with a drive rod connected with it by means of a joint configured to provide mutual angular displacement, and carrying the connecting device located in the mixing chamber and providing a proportional displacement of the first throttle and the metering needle.
    The invention relates to mechanical engineering, in particular to carburetors with constant vacuum.
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    US4054621A|1977-10-18|Carburetor pneumatic fuel atomizer and throttle valve
    US4572809A|1986-02-25|Carburettor
    US5359977A|1994-11-01|Fluidic metering system
    US5176855A|1993-01-05|Liquid fuel system with tilt valve
    US3939230A|1976-02-17|Carburetors
    GB2057056A|1981-03-25|Controlling the fuel-air mixture supply to an internal combustion engine
    US4519958A|1985-05-28|Fuel flow metering apparatus
    US3959418A|1976-05-25|Carburetor
    SU663872A1|1979-05-25|Internal combustion engine carburettor
    US4538577A|1985-09-03|Fuel injection apparatus for internal combustion engine
    US4461731A|1984-07-24|Carburetor
    US4414948A|1983-11-15|Apparatus for forming the operating mixture, in particular for mixture compressing internal combustion engines having externally supplied ignition
    US4227503A|1980-10-14|Fuel supply system
    RU2006643C1|1994-01-30|Device for preparation and adjustment of composition of fuel-and-air mixture for internal combustion engine
    SU1222879A1|1986-04-07|Device for feeding gaseous fuel into internal combustion engine
    同族专利:
    公开号 | 公开日
    JPS57126546A|1982-08-06|
    AU552162B2|1986-05-22|
    EP0055103A3|1982-11-10|
    CA1172530A|1984-08-14|
    ES8305465A1|1983-04-01|
    EP0055103B1|1986-03-12|
    AU7860181A|1982-06-24|
    ES508081A0|1983-04-01|
    BR8108275A|1982-10-05|
    MX156504A|1988-09-05|
    US4323521A|1982-04-06|
    EP0055103A2|1982-06-30|
    DE3174102D1|1986-04-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    BE528555A|
    US1586683A|1917-03-12|1926-06-01|Stromberg Motor Devices Co|Carburetor|
    US1683634A|1922-06-10|1928-09-11|William P Taylor|Carburetor|
    US1706557A|1925-09-10|1929-03-26|Baumgardner William Lawrence|Carburetor|
    US1773290A|1927-08-18|1930-08-19|R A Dunann|Carburetor|
    BE540531A|1929-01-10|
    US1995587A|1931-03-20|1935-03-26|Pallas Apparate Gmbh|Carburetor|
    US3147320A|1961-05-16|1964-09-01|Enginering Res And Applic Ltd|Carburetors|
    FR1302589A|1961-07-19|1962-08-31|Sibe|Improvements made to fuel systems for internal combustion engines|
    DE1243917B|1961-10-09|1967-07-06|Sibe|Device for internal combustion engines with fuel injection into the intake line|
    FR1310888A|1961-12-22|1962-11-30|Engineering Res & Applic Ltd|Carburetor|
    US3432152A|1966-03-25|1969-03-11|Frank B Sweeney|Fuel injection system|
    GB1233941A|1968-10-22|1971-06-03|
    GB1300577A|1969-07-22|1972-12-20|Zenith Carburetter Company Ltd|Improvements in or relating to carburetters|
    DE2219768A1|1972-04-22|1973-10-31|Bosch Gmbh Robert|DEVICE FOR REGULATING THE MASS RATIO OF THE FUEL-AIR MIXTURE OF A COMBUSTION ENGINE|
    FR2139581A5|1972-05-29|1973-01-05|British Leyland|
    US3956434A|1974-01-04|1976-05-11|Ford Motor Company|Carburetor cold enrichment fuel metering signal and air flow modulator|
    US4008298A|1975-05-16|1977-02-15|Lectron Products, Inc.|Carburetor|
    US4172436A|1975-10-31|1979-10-30|Societe Industrielle De Brevets Et D'etudes S.I.B.E.|Carburation devices for internal combustion engines|
    JPS5554655A|1978-10-19|1980-04-22|Nissan Motor Co Ltd|Variable venturi carburetor|JPH07151016A|1993-11-30|1995-06-13|Suzuki Motor Corp|Negative pressure responsive carburetor|
    US5788710A|1996-04-30|1998-08-04|Boston Scientific Corporation|Calculus removal|
    JP3945014B2|1998-04-30|2007-07-18|株式会社ケーヒン|Constant vacuum vaporizer|
    JP2000297703A|1999-04-09|2000-10-24|Nippon Walbro:Kk|Fuel jet supporting structure of carburetor|
    JP2005155525A|2003-11-27|2005-06-16|Zama Japan Co Ltd|Carburetor with manual choke mechanism|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/217,666|US4323521A|1980-12-18|1980-12-18|Constant depression carburetor|
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