• 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. ELECTROMAGNETS DRIVE OF THE INTERNAL COMBUSTION ENGINE VALVE, comprising a housing with a tongue, measles, first and second switching magnets and a spring system made in the form of the first and second springs, with springs, measles and magnets placed in the housing under the hammer, measles placed on the housing, and the springs, measles and magnets are placed in the housing under the clamp, the measles are placed in the housing, the springs, the measles and the magnets are placed in the housing under the clamp, the measles are placed in the housing, and the springs, the measles and the magnets are placed in the housing in the case of the first and second springs. magnets of the same name and springs are on the sides of the core, the first and second magnets are made so that their forces on measles, respectively, are closed and open, the valve positions are greater than the forces from the springs, and the plates are made with characteristics that the position of the equilibrium position of their forces on measles corresponds to the position of the valve between the open and closed states, characterized in that, in order to increase efficiency, the actuator contains a tensioning device housed in the housing under the lid and connected to the springs, The tensioning device is made in the form of a servo drive to shift the equilibrium position of the spring system. 2. The actuator according to claim 1, characterized in that it comprises at least two stops for restricting the movement of the tensioning device, the first emphasis of the tensioning device being arranged so that the equilibrium position of the spring system lies between the switching positions of the magnets, and the second emphasis placed so that the equilibrium position of the spring system coincides with one of the switching positions of the magnets. 3. Drive on PP. 1 and 2, in that the tension device is made in the form of an electric servo drive having a tension coil electromagnet and a tension bar. 4. The actuator according to claim 3, characterized in that the electromagnet is made with the possibility of being switched on in the position of being pressed against the first stop and which can be switched off in the position of being pressed against the second support. 5. The actuator according to claim 4, distinguished by the fact that the electromagnet is designed in such a way that the time from 4 seconds to its excitation is greater than the time that the switch magnet switches off. 6. Drive on PP. 1-5, characterized in that the valve is connected with the valve through additionally installed spring elements of high rigidity. 7. Drive on PP. 1-6, characterized in that it is provided with damping elements disposed between the core and the valve.
    公开号:SU1055343A3
    申请号:SU813295798
    申请日:1981-06-16
    公开日:1983-11-15
    发明作者:Пишингер Франц；Кройтер Петер
    申请人:Франц Пйшингер (Австри )；
    IPC主号:
    专利说明:

    The first invention relates to mechanical engineering, in particular to electromagnetic actuators for oscillatingly moving control elements in reciprocating machines, for example internal combustion engines, in particular for flat slide valves and disc-shaped and other valves. Electromagnetic actuators of internal engine valves are known, comprising a housing with a cover, a measles, first and second switching magnets, and a spring system made in the form of the first and second springs, the springs, the valve and the magnets being placed in the housing under the measles cover placed on the valve , OD nogapnye magnets and springs on the sides of the ykor, nepBbrii and second magnets are made so that the force of their action on measles, respectively, when the valve is closed and open, is greater than the force from the springs, and the springs are made with that According to the characteristics that the position of the position equals the weight of their forces on measles corresponds to the position of the valve / between the open and closed states. Such an actuator for gas smoldering valves in an internal combustion engine consists of two switching coils, each of which interacts with a core. Obd kor are fortified on a common issue that affects kAapan. The valve, as in the case of control and control, has a spring, which holds the valve in the closed state. In addition, the previous treadmill has one more spring of the same stiffness that is applied to the deposit from the core and in the closed state of the valve is pulled by the bark. To switch this device, one electromagnet is always powered, and the other is turned off. Owing to the tensioned daryuginnaya system, the dtindel with .1 acceleration accelerates to the half of its turn, and both cores have the same distance from the switching coils. In this case, the switching cords are designed in such a way that, when powered, they can pull their measles from this middle position against the increasing force of the spring system. In the initial position of this device, both cores also become in their average aloe, that the valve makes half of its 43 turns and is in the open position Q. This device can hardly be used in internal combustion engines, since switching off the internal combustion engine for a long period, when valves are open in all cylinders, can lead to corroding of the internal surface of cylinders. To start an internal combustion engine equipped in this way, the switching coils for pulling the core to half a turn must be designed for great forces, which requires a large power consumption for the multi-cylinder engine during start-up. In addition, due to the large accelerated masses with two retractable cores, a high natural frequency can be achieved only with high spring forces, 33. due to which the required magnet forces and, therefore, the energy consumption increases dramatically. , downsizing and simplified design. This goal is achieved by the fact that the electromagnetic valve actuator of an internal combustion engine, comprising a housing with a fingerprint, measles, and a second switchable magnets and a spring system, made in the form of the First and Second Springs, with springs, measles and magnets placed in the housing under the cover, measles placed on the valve, the magnetic tubes and springs on the sides of the core, the first and the second magnets are made so that their forces on measles, respectively, when the valve is closed and open, are greater than the forces from the springs, and They are made with such characteristics that the position of the equilibrium position of their forces on measles corresponds to the position of the valve between the open and closed states, contains a tensioning device placed in the housing under the lid and connected to the springs, the tensioning device being made in the form of a servo drive for displacement of the equilibrium position of the spring system; in the drive, at least two stops can be made to restrict the movement of the tensioning device; two with the first emphasis of the tensioning device placed so that the equilibrium The position of the spring system is located between the positions of the switching of the magnets, and the second emphasis is placed so that the equilibrium position of the spring system coincides with one of the positions of the switching of the magnets. In the drive, the tensioner is made in the form of an electric servo drive having a magnet with a tension coil and tensioner. In addition, in the drive, the electromagnet can be made with the possibility of switching on in the position of pressing to the first stop and on the possibility of switching off - in the position of pressing on the second support. In a drive, an electromagnet can be designed in such a way that its excitation time is longer than the excitation time of the switching magnets. The armature may be connected to the valve through additionally installed spring elements of high rigidity. The actuator can be equipped with damping elements placed between the valve and the core. FIG. 1 shows an actuator with a valve for an internal combustion engine to brew; in fig. 2 - the same, the springs are placed inside the coils; on fng. 3 - the same, the springs are wet to the carcass; in fig. And - that zh, springs are located outside of coils; Fig drive with a plate gate; in fig. 6 is a variant of mounting a double core on the valve; on fkg. 7 - diagrams of dependences of efforts on the spring system (a), on the closing & I and from the opening b of the coils in the function - - from moving the valve between the Closed 1 and Open positions, in FIG. 8 shows the dependence of the speed of movement of the valve e and its acceleration on the same movement of the valve. The proposed drive can be used not only in internal combustion engines, but oscillating control elements, which should have only two discrete positions, are used everywhere. The internal combustion engine (Figs. 1-4) consists of a cylinder block 1, a piston 2 with piston rings 3, a cylinder head seal 4, a cylinder head 5 and from a poppet valve 6 which is guided in guide 7 and seals the combustion chamber 8 together with an annular valve seat 9 with respect to the gas channel 10. The actuator of the invention for this disc valve 6 consists of a core 11, which is mounted on the stem of the valve 6, and of two switching magnets of switching coils 12 and 13, of which atushka 12 is closing, and switching coil 13 is opening. Measles II is affected by the spring system, which consists of springs 14 and 15 operating in compression. The spring 15 is a known valve spring, which acts on the poppet valve 6 with a force in the direction of closure. The spring 14 is positioned in such a way that it acts on the poppet valve 6 in the direction of opening. The spring 14 shrinks with the tension wheel 16, which is attached to the tension coil 17 and forms a tension device. Tensioning bark 16 (Fig. 1) is in contact with the tensioning coil 17 so that the spring 14 is in a compressed state. For this, it is necessary that the tension coil 17 be energized. In order for the poppet valve 6 to be in the position shown in Fig. 1, it is necessary for the closing coil 12 to be excited and the measles 11 to be held around it against the force of the compression spring 14. Shown in Fig., 1 position of the actuator corresponds to the working position of the poppet valve 6 is closed. In this position, the valve spring 15 has the greatest length and, accordingly, with the smallest force acts on the measles 11. The expansion sleeve 18 and the magnetic clamp 19 serve dp mounting of the switching coils 12 and 13 and the tension coil 17 in the cylinder head 5, which has a lid 20 is closed at the top. The operation of the device is explained in paragraph 1 (Fig. 7 and B). FIG. 7 ordinate postponed. forces in the direction of closing with a positive sign and in the direction of opening with negative. On the abscissa, the possible stroke of the disc valve 6 is set aside. In FIG. 8. The ordinate additionally shows the acceleration and speed during opening, which in the direction of the closure is shown with positive signs. If the actuator (fig.O. is turned off, i.e., none of the coils 12, J3 and 17 is energized, then the tension bark 16 is in the initial position; adjacent to the magnetic cover 19. As a result, the spring 14 operating on compressed, relaxed, so that by means of the valve spring 15, the poppet valve 6 is pressed against the closing coil 12. The j8 combustion chamber is closed. Since the tension coil has a higher inductance than both switching coils, the excitation current is applied on all three coils one n Due to the inductance of the closing coil I2, the magnetic field in it grows faster than the tension core can be attracted by the 16 tension coil 17. Therefore, the measles 11 remain attracted to the closing coil 12, the disc valve 6 remains closed, i.e. spring The system (Fig. 7, curve a) acts with a negative force in the direction of closure on measles II, which, however, is less than the holding force of the closing coil 12 (Fig. 7, curve b). In the closed position of the disc valve 6, the force from the opening of the coil 13 in the direction of closing is practically zero (Fig. 7, curve c). To open the disc valve 6, the closing coil 12 is momentarily turned off. the full force of the spring system, so that the bark 11 with the poppet valve 6 is accelerated in the opening direction. As can be seen from Fig. 7, the coil 12 can be turned on almost immediately again, since immediately after a short stroke of the poppet valve 6, the attractive force of the coil 12 will become less than the opening force of the spring system. At half the stroke, virtually no force acts on the moving disc valve 6. Thus, all the potential in the closing direction of the valve converts the potential energy into kinetic energy. This leads to (Fig. 8) that the disc valve 6 with bark .11 moves farther than thirty-three more than half of its hog. (Curve g), the speed (curve e) at half the stroke has the maximum value. After passing through half the stroke, the valve spring 14 delays movement, and simultaneously with the increasing distance from the half stroke, the force of the opening coil 13 to measles 11 increases, i.e. the acceleration of the poppet valve 6, as well as its speed, are reduced. Acceleration, shortly before reaching the open position, changes its sign. The disc valve 6 comes to the open position. with braking. As a result, a sharp blow of the I1 core against the opening coil 13 is eliminated. In the device shown in FIG. 2, the springs 14 and 15 are located inside the coils 12 and 13, while in FIG. 1, they are located inside a stack of iron plates interacting with switching coils. FIG. 3 springs 14 and 15 Covers switching coils 12 and 13. Tensioning bore 16 for receiving the tension coil I7 and the switching coil 12. Therefore, it is required that the bore 11 in its original also clamped Kla: with a spring 15k to the bushing 21, which is held in its position magnetic coil. 19. FIG. 4, the springs 14 and 15 are located outside the switching coils 12 and 13, in addition, the initial position of the actuator according to the invention is shown. In this position, the tension bark 16 is relaxed with a relaxing spring 14 against the magnetic coil 19. Therefore, almost the full force of the valve spring 15 acts on measles II, so that the measles 11 and the poppet valve 6 remain in the closed position. FIG. 5, the actuator according to the invention is depicted with a flat gate. FIG. Figure 6 shows the possibility of an elastic fastening of the core 11 on the stem of the control element (disc valve 6). The anchor 11 is clamped between the cup springs 22 and 23. The cup springs 22 and 23 are under the initial tension and are fixed on the stem of the disc valve 6 by retaining rings 24 and 25, which
    counters from falling out of locking rings and 27. The cup springs 22 and 23 have a high spring stiffness, so that the relative
    movements between the stem of the yoke valve of the valve 6 and the core K are damped by the main thread of the belleville springs 22 and 23 According to Koryu N.
    / 7
    UI.1
    P
    nineteen
    F
    one
    F (/ g
    权利要求:
    Claims (7)
    [1]
    1. ELECTROMAGNETIC VALVE FOR THE INTERNAL COMBUSTION ENGINE VALVE, comprising a housing with a crack, an armature, a first and second switching magnets and a spring system made in the form of the first and second springs, the springs, the armature and the magnets being placed under the cover on the armature , magnets and springs of the same name — on the sides of the armature, the first and second magnets are made so that the forces of their action on the armature, respectively, when the valve is in the closed and open positions, are greater than the forces from the springs, and the rod · springs are made with such characteristics characteristics that the position of the balance of their forces on the armature corresponds to the position of the valve between open and closed states, characterized in that, in order to increase efficiency, the actuator contains a tension device located in the housing under the cover and connected with springs, and the tension device is made in as a servo for ^ shifting the equilibrium position of the spring system.
    [2]
    2. Drive on π. 1, characterized in that at least two stops of restriction of movement of the tensioner are made in it, the first stop of the tensioner being placed so that the equilibrium position of the spring system is between the switching positions of the magnets, and the second stop is placed so that the equilibrium position of the spring system coincides with one of the switching positions of the magnets.
    [3]
    3. The drive according to paragraphs. 1 and 2, 6 tons, characterized in that the tensioning device is made in the form of an electric servo drive having an electromagnet with a tension coil and a tension armature.
    [4]
    4. Drive pop. 3, characterized in that the electromagnet is configured to be turned on in the pressed position against the first stop and turned off in the pressed position to the second stop.
    [5]
    5. Drive pop. 4, characterized in that the electromagnet is designed in such a way that its excitation time is longer than the excitation time of the switching magnets.
    [6]
    6. The drive according to paragraphs. 1-5, characterized in that · the dvizan anchor with the valve through additional * installed spring elements of high rigidity.
    s
    [7]
    7. Drive popp. 1-6, characterized in that it is equipped with damping elements located between the armature and the valve.
    I
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3024109A|DE3024109C2|1980-06-27|1980-06-27|
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