• 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:
    A fuel injection system includes a pump including a pump plunger and electromagnetic means for actuating the plunger against the action of a spring. The electromagnetic means includes a winding which is energized to cause delivery of fuel. First electronic means is provided to cause energization of the winding when delivery of fuel is required and second electronic means operable to cause de-energization of the winding. The second electronic means includes a comparator which receives a required fuel signal and a signal from a transducer which provides a signal representative of the plunger position. When the predetermined movement of the plunger has taken place the winding is de-energized to allow the plunger to return under the action of the spring.
    公开号:SU971116A3
    申请号:SU802929447
    申请日:1980-06-06
    公开日:1982-10-30
    发明作者:Костелло Кристофер
    申请人:Лукас Индастриз Лимитед(Фирма)；
    IPC主号:
    专利说明:

    a moving device for generating a signal about the position of the rotating parts of the engine connected to the output of the crankshaft and camshaft position shapers. FIG. i shows the constructive implementation of a pump nozzle, a section; in FIG. 2 — control system block-szem; in fig. 3 is a diagram illustrating the relationship between fuel supply and electrical power. The nozzle pump (Fig. 1) has a hollow, shpindric stepped body 1, at the narrower end of which a nozzle 2 is installed. The body 3 of the fergout has a step at one end for attachment to the pump body. Cases 1 and 3 are fastened in this case using electron beam welding. In the housing 3 there is an opening in which the clalan .4 is installed with the possibility of chipping, the plate 5 of which is
    Modifies with the saddle performed. on the outer surface of the housing 3. The valve 4 has a groove, due to which, when the tray 5 moves away from the seat, the fuel enters the combustion chamber of the engine. At the end of the valve, which is opposite to the one acting with the saddle, there is a support cup 6, which interacts with one end of the force of the compression compression spring 7. The opposite end of the spring 7 of the olrajiaeTCH on the casing 3. Thus, the plate is pressed against the seat and lifted from it under the influence of fuel pressure in the pump chamber 8 inside the narrower part of the casing 1. The volume of the pump chamber is changed by means of the pump plunger 9 sliding inside the sleeve 1O with a flange, inserted in a ledge made: on the inner surface of the narrow part of the housing 1. The plunger 9 is spring-loaded in the opposite direction, i.e. in the direction in which the volume of the chamber 8 increases, with compression of the coil spring 11 located between the sleeve 10 and the plunger head 12. The sleeve retains its position unchanged, will be pressed in the housing 1. The plunger 9 has a groove in which a check valve 13 is installed through which it enters the pump chamber. When the plunger moves upward under the action of the spring 11. The plunger is moved downwardly intended by electromagnetically edges 2O. These surfaces of the ribs 19 and 20 are inclined relative to the 25 longitudinal axis of the nozzle-nozzle and not
    权利要求:
    Claims (2)
    [1]
    in contact with each other when the electromagnetic device is switched off (as shown in the drawing). On the central. caliper B is a two conical retractor device 14 placed inside the wider part of body 1. Electromagnetic device 14 contains a hollow centerpiece holder 15, fastened with the inner surface of a wider part of body 1 and made of magnetic material. The end of the holder, located closer to the narrower part of the body, is fixed on the element 16, which is mounted slidably on the central caliper 17. The element 16 is provided with a hollow shank with slots 18, which cooperates with the plunger head 12. At the lower end of the caliper 17 there is a latch that secures the caliper 17 in the housing 1. On the inner surface of the holder there are two annular conical protrusions forming a pair of conical ribs 19. In addition, the central caliper has a protrusion that is also provided with formed ribs 20,. an electrical coil 21, which is connected by winding a wire along the bottom of the chute from one end of the caliper back to the other end of the caliper through the other chute. The coil contains the required number of turns and when the electric power is hot, and the ribs have opposite magnetic polarity, and the imperious flow passes through the air gap between the ribs 19 and 2 O. The central caliper 17 has a fitting 22 attached to the body 1 with a nut 23. Union 22 has a fuel inlet that is connected to the inside of the wide part of the housing using PROTOCH1ED 24. It also holds an electrical inlet 25 that is connected to one end of the coil 21 and the other end to the nozzle rum. The pump-nozzle is equipped with a converter designed to determine the position of the holder. The converter has a core fixed on the caliper 17 and provided with an annular groove in which the coil 26 is mounted on the holder. The ring 27 is made of electrically conductive material on the holder. As the core moves, the inductance of coil 26 changes. FIG. 3 position 28. designates the electric pulse applied to the coil 21, pozsgay 29 - a segment on the upper curve, corresponding to the movement of the plunger 9 down against the action of the spring 11, and position 30 - reverse movement of the plunger 9 under the action of the spring 11. The coil 21 is excited from the chain 31 And it is controlled by the first and second electronic devices. The first electronic device contains a circuit 32, from which a signal is sent to the circuit 31 to energize the coil 21. The circuit 32 receives a signal from the circuit 33. The second electronic device contains a circuit 34, which sends a signal to the power circuit 31 when it is necessary to stop feeding current to coil 21. Circuit 34 receives a signal from comparator 35. Comparator 35 receives a signal corresponding to the position of plunger 9 received from winding of coil converter 26 through forming circuit 36. To another input of comparator 35, a signal is received from A third electronic device with a circuit 37, which is made, for example, in the form of a memory unit, contains a fuel card. Chain 37 may also be a control circuit. The circuit 37 at the output gives a signal of fuel demand. One input of the circuit 37 is supplied with a fuel demand signal from the converter 38, which is connected to the accelerator pedal of the car. Pressing the pedal to increase the fuel supply outputs an increase in the signal in circuit 37. Circuit 37 also receives a signal corresponding to the rotational speed of the engine from the circuit of the diffuser 39, which receives a signal from the 4O speed converter. Circuit 37 may also receive other signals corresponding to different engine operating parameters, such as air pressure at the inlet or engine temperature. In the case when the circuit 37 of the third electronic device is a fuel card, the output of the circuit will be a signal, the value of which corresponds to the required amount of fuel, as well as the rotation speed of the engine and other operating parameters. This signal is the result. In the case where the circuit 37 is control, the signal generated by it is generated in it. Chain 37 ensures that for 9.96-6 of this speed, the maximum fuel that is injected into the engine is no higher, and if the engine speed approaches the maximum allowed, the signal is reduced to reduce or even stop the fuel supply to the engine. A fourth electronic device for continuously monitoring the flow of fuel into the engine contains a so-called time map 41, which receives a signal about the rotation speed of the engine from the decoder 39 and the position signal of the engine piston from circuit 42, which receives signals from formable circuits 43 and 44 associated with converters 45 and 46 for reflecting the position of the crankshaft and cam shaft of the engine. The system works as follows. By. signals from forming circuits 43 and 44, circuit 42 outputs the position signal of the engine piston. This signal is sent to a time map, which gives a signal that it is necessary to start supplying fuel. The time map also receives a signal from circuit 37 when it is necessary to vary the fuel supply time in accordance with the amount of fuel supplied to the engine depending on its load. At the moment when the time card signals the need to start fuel injection, the circuit 32 sends a control signal to the circuit 31 to energize the coil 21. The current in the coil 21 increases, and the plunger 9 begins to move at a certain rate, thereby supplying fuel through the nozzle 2. The movement of the plunger 9 is fixed by the comparator 35 by means of a converter, and after performing a predetermined movement of the plunger 9, the circuit 34 outputs a control signal stopping the flow of current to the coil 21. An additional amount of fuel, It enters during the movement of the plunger 9 under the action of inertial force, taken into account in the chain 37. As soon as the plunger 9 stops, it will immediately begin to move in the opposite direction under the influence of the spring 11 and the fuel enters the flow chamber. The plunger 9 returns to its original position. Obviously, the supply of fuel does not occur simultaneously with the start of the excitations & not coil 21 due to the fact that it takes time to get enough magnetic flux, it is also necessary that the fuel pressure in the pump chamber reaches a height sufficient to lift the plate 5 from the seat 5 nozzles
    [2]
    2. This delay is not shown in FIG. 3, however, it has to be taken into account as implemented in circuit 41. Thus, the introduction of electronic devices into the system provides an increase in reliability. Claims of Invention A fuel injection system in an internal combustion engine, comprising an injector with a plunger, an injector, a pumping chamber, a fuel supply control valve in the pumping chamber, an electromagnetic device for moving the plunger in the direction of the injector, a power supply circuit of the electromagnetic device, and a plunger return spring to the initial position, and the pump-injector control system, containing transducers and f (the plunger position, the crankshaft position and the camshaft, shaft, speed converters, fuel supply and speed deigraphorizer, feed start circuit and comparator at outlet 4 of the plunger positioner, the pump is located on the chamber between the plunger And the nozzle, the valve is placed in the plunger, and the electromagnetic device contains a support with ribs and a hollow cylindrical holder with conical fins, characterized in that, in order to improve reliability, it comprises an additional four electronic devices and a memory unit with a time map, the first electronic device for The electric current to the electromagnetic device is connected between the supply circuit and the power circuit, the second between the comparator and the power circuit to stop the supply of electric current to the electromagnetic device, the third to signal the required amount of fuel is connected to the fuel supply converter, comparator and speed decryptor connected via a memory unit in parallel with a comparator, a starting supply circuit and a fourth electronic device for generating a position signal of rotating parts engine connected to the outputs of the crankshaft and camshaft position actuators. I Sources of information taken into account in the examination 1. The patent of Germany No. 1526755, class. 51 / О8, publ. 1979
    f1 / g.
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    同族专利:
    公开号 | 公开日
    PL225902A1|1981-08-21|
    IT1140892B|1986-10-10|
    HU181542B|1983-10-28|
    AU5820280A|1981-08-27|
    ES8103280A1|1981-02-16|
    JPS56118528A|1981-09-17|
    ES491301A0|1981-02-16|
    IT8021539D0|1980-04-22|
    GB2069718A|1981-08-26|
    DD150636A5|1981-09-09|
    FR2476229A1|1981-08-21|
    AU531862B2|1983-09-08|
    CA1147428A|1983-05-31|
    DE3016171A1|1981-08-20|
    GB2069718B|1983-11-30|
    US4351299A|1982-09-28|
    BR8002677A|1981-08-25|
    ZA802218B|1981-04-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US7753657B2|2005-02-02|2010-07-13|Brp Us Inc.|Method of controlling a pumping assembly|GB1244925A|1968-10-23|1971-09-02|Brevete Et D Etudes S I B E So|Improvements in or relating to fuel feed devices for internal combustion engines|
    DE1910114A1|1969-02-28|1970-09-17|Bosch Gmbh Robert|Injection arrangement for internal combustion engines|
    DE1917487A1|1969-04-05|1970-10-22|Bosch Gmbh Robert|Device for controlling the amount of fuel for internal combustion engines|
    GB1441262A|1972-10-04|1976-06-30|Cav Ltd|Fuel pumping apparatus|
    GB1477456A|1973-07-12|1977-06-22|Cav Ltd|Fluid pressure generators|
    GB1540216A|1975-03-07|1979-02-07|Cav Ltd|Controlling and monitoring the operation of fuel injection supply systems|
    GB1564496A|1975-09-05|1980-04-10|Lucas Industries Ltd|Electronic fuel injection control for an internal combustion engine|
    US4082066A|1976-05-03|1978-04-04|Allied Chemical Corporation|Modulation for fuel density in fuel injection system|
    US4148283A|1976-07-19|1979-04-10|Nippondenso Co., Ltd.|Rotational speed detecting apparatus for electronically-controlled fuel injection systems|
    US4237830A|1978-10-18|1980-12-09|General Motors Corporation|Vehicle engine air and fuel mixture controller with engine overrun control|
    US4197996A|1978-12-07|1980-04-15|Ford Motor Company|Constant pressure fuel injector assembly|
    US4355620A|1979-02-08|1982-10-26|Lucas Industries Limited|Fuel system for an internal combustion engine|
    US4258674A|1979-03-28|1981-03-31|Wolff George D|Engine fuel injection system|JPS6328230B2|1980-06-11|1988-06-07|Diesel Kiki Co|
    DE3032381C2|1980-08-28|1986-07-24|Robert Bosch Gmbh, 7000 Stuttgart|Electronic control device for an internal combustion engine with compression ignition|
    US4499878A|1982-10-25|1985-02-19|Nippon Soken, Inc.|Fuel injection system for an internal combustion engine|
    US4620261B1|1984-10-11|1992-03-17|Fairchild Weston Systems Inc|
    NL8501647A|1985-06-06|1987-01-02|Volvo Car Bv|FUEL INJECTOR.|
    US5175663A|1989-10-17|1992-12-29|Jidosha Kiki Co., Ltd.|Fuel pump controller|
    DE4018320C2|1990-06-08|2002-06-27|Bosch Gmbh Robert|Control circuit for an electromagnetic consumer|
    WO2011028331A2|2009-08-27|2011-03-10|Mcalister Technologies, Llc|Shaping a fuel charge in a combustion chamber with multiple drivers and/or ionization control|
    US8091528B2|2010-12-06|2012-01-10|Mcalister Technologies, Llc|Integrated fuel injector igniters having force generating assemblies for injecting and igniting fuel and associated methods of use and manufacture|
    CN107489569B|2016-11-24|2019-09-20|宝沃汽车（中国）有限公司|A kind of method, oil pump and engine reducing oil pump noise|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8005553A|GB2069718B|1980-02-19|1980-02-19|Fuel injection system|
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