• 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 pump in which the onset of fuel injection can be varied by way of a device operating in dependence on speed in a conventional manner by turning the roller ring which cooperates with a cam plate which in turn is connected with the pump and distributor piston. In accordance with the present invention the angle of twist of the roller ring is limited by a stop which engages this ring.
    公开号:SU799677A3
    申请号:SU782634845
    申请日:1978-06-30
    公开日:1981-01-23
    发明作者:Хефер Геральд；Конрат Карл；Шварц Манфред；Мюллер Вилли
    申请人:Роберт Бош Гмбх (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the field of engine building. A fuel pump for an internal combustion engine is known, comprising a housing within which a 9emeH cam drive in a ring with rollers mounted on it, and a speed torque regulator. Start the injection associated with the cam drive ij. The disadvantage of this pump is the limited capabilities of its speed regulator of the moment of the start of fuel injection. The purpose of the invention is to expand the range of control of the moment of the start of injection. This goal is achieved by the fact that the pump additionally contains a regulating device, and at least one angle is made in the ring to set the stop to limit the angle of rotation of the ring associated with the regulating device, the latter being equipped with a flexible control cable and a thermostatic link, recess and the stop is located radially in relation to the ring, the regulating device is made in the form of a ring fixed on the body and the drive lever with a return spring, the stop is made in the form of a pin, eccentric installed on the ring regulating device, and the lever is made in the form of a flexible intermediate link, for example, a powered spring. FIG. 1 shows a fuel pump in the cam drive area, cross section; in fig. 2 shows an assembly for connecting a regulating device with a cam drive ring; FIG. 3 is a side view of the regulating device; in fig. 4 is a view of the stop from the side of the cam drive ring. The pump includes a housing 1, inside of which is placed a cam drive in the form of a ring 2 with rollers 3 mounted on it, and a speed controller 4 at the moment of the start of injection, equipped with a spring-loaded piston 5 connected to the ring 2 with a pin 6, the pump further comprises a regulating device made in the form of fixed on the housing 1
    using the sleeve 7 of the finger 8 and the actuating lever 9 with the return spring 10. The lever 9 is discharged as a flexible intermediate event, for example, a driven spring 11, the regulating device is equipped with a flexible control cable 12 and a thermostatic link (not shown). In the ring 2, at least one recess 13 is provided for mounting the stop 14 for limiting the angle of rotation of the ring. The stop 14 is fixed using the crank 15 on the finger 8 of the regulating device. The lever 9 is provided with a limiter 16 of the angle of rotation.
    For connection with the cable 12, the lever 9 is provided with a head 17.
    The pump works as follows.
    By changing the angular position of the cam-drive ring 2 with the help of the piston 5 of the speed adjuster 4, the advance injection angle increases or decreases. As the number of revolutions of the pump increases, the advance injection angle increases and decreases with decreasing.
    If the engine is in a heated state, then the stop 14 does not limit the angle of rotation of the ring 2 of the cam drive. When this lever 9 is in contact with the limiter 16 of its angle of rotation, which contributes to the spring 10.
    If the engine is not warm, then. The lever 9 is removed by means of the cable 12 from its limiter 16, turns around and acts through the driving spring 11 on the finger 8 of the regulating device. Angular movement of the crank 15 and the stop 14, which comes into contact with the ring 2 and turns it in the direction of decreasing the leading angle, occurs. fuel injection. .
    Thus, the introduction of an additional regulating device into the pump allows to expand the range of regulation of the moment of the start of fuel injection.
    权利要求:
    Claims (7)
    [1]
    1. A fuel pump for an internal combustion engine, comprising a housing inside which a cam drive is arranged in the form of a ring with rollers mounted on it, and a high-speed injection timing regulator associated with the cam drive ring, characterized in that in order to extend the range controlling the moment of the start of injection, the pump further comprises an adjustable device, and at least one recess is made in the ring to set a stop for limiting the angle of rotation of the ring associated with the regulating device vom.
    [2]
    2. Pump according to Claim 1, excluding the fact that the regulating device is equipped with a flexible control cable.
    [3]
    3. Pump on PP. 1 and 2, characterized in that the regulating device is equipped with a thermostatic link.
    [4]
    4.Nd, sos popp. 1-3, characterized in that the recess) and the abutment are located radially with respect to the ring.
    [5]
    5. Pump on PP. 1-4, characterized in that the regulating device is made in the form of a ring fixed on the body and a drive lever with a return spring
    [6]
    6. Pump on PP. 1-5, characterized in that the abutment is made in the form of a pin eccentrically mounted on the regulating device ring.
    [7]
    7. Pump according to Claim 5, characterized in that the lever is made
    in the form of a flexible intermediate link, for example, a lead spring.
    Sources of information taken into account in the examination
    1. Patent of Germany No. 1776071, cl. F 02 D 1/18, 1976.
    1
    7 /
    Fig. 2
    / 7
    FIG L
    类似技术:
    公开号 | 公开日 | 专利标题
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    US5184586A|1993-02-09|Mechanical compression release for an internal combustion engine
    US5809954A|1998-09-22|Fuel injection timing system for unit injectors
    CA1143617A|1983-03-29|Hydraulic valve lifter and fluid pressurecontrol device therefor
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    SU18060A1|1930-09-30|Regulator
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    SU1267024A1|1986-10-30|Diesel engine rotational speed centrifugal governor
    SU1339278A1|1987-09-23|Internal combustion engine fuel pump adjuster
    同族专利:
    公开号 | 公开日
    ATA470678A|1980-07-15|
    US4177775A|1979-12-11|
    DE2729807A1|1979-01-18|
    JPS5413830A|1979-02-01|
    DE2729807C2|1985-11-14|
    BR7804133A|1979-04-17|
    GB1576700A|1980-10-15|
    FR2396170A1|1979-01-26|
    IT7825171D0|1978-06-30|
    IT1096864B|1985-08-26|
    AT361254B|1981-02-25|
    FR2396170B1|1983-02-25|
    JPS6128818B2|1986-07-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1143675B|1961-04-01|1963-02-14|Bosch Gmbh Robert|Adjustment device for the start of injection in injection pumps|
    FR1319014A|1962-04-02|1963-02-22|Bosch Gmbh Robert|Injection pump for internal combustion engine|
    DE1234090B|1963-11-02|1967-02-09|Bosch Gmbh Robert|Adjustment device for the start of injection in fuel injection pumps for internal combustion engines|
    FR1387115A|1963-11-14|1965-01-29|Bosch Gmbh Robert|Device for varying the start of delivery of a fuel injection pump|
    FR1383145A|1963-11-14|1964-12-24|Bosch Gmbh Robert|Fuel injection pump in an internal combustion engine|
    FR1412981A|1964-11-02|1965-10-01|Bosch Gmbh Robert|Adjustment device in particular for the start of injection into fuel injection pumps and pumps provided with this device or similar device|
    FR1546374A|1967-12-06|1968-11-15|Bosch Gmbh Robert|Fuel injection pump for internal combustion engines|
    DE2158689C3|1971-11-26|1979-01-04|Robert Bosch Gmbh, 7000 Stuttgart|Fuel injection system for internal combustion engines with injection timing|
    GB1440563A|1972-09-12|1976-06-23|Cav Ltd|Fuel pumping apparatus|
    GB1441262A|1972-10-04|1976-06-30|Cav Ltd|Fuel pumping apparatus|
    US4050437A|1975-04-01|1977-09-27|Cav Limited|Liquid fuel injection pumping apparatus|
    DE2521827C3|1975-05-16|1982-09-23|Volkswagenwerk Ag, 3180 Wolfsburg|Control device for a fuel injection pump of a compression-ignition internal combustion engine|
    US4098249A|1975-12-03|1978-07-04|Cav Limited|Fuel injection pumping apparatus|US4366796A|1977-06-30|1983-01-04|Diesel Kiki Co., Ltd.|Distribution type fuel injection pump|
    DE2844910A1|1978-10-14|1980-04-30|Bosch Gmbh Robert|FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES|
    FR2450352B1|1979-02-28|1981-04-17|Cav Roto Diesel|
    DE2909559A1|1979-03-10|1980-09-11|Bosch Gmbh Robert|FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES|
    US4320733A|1979-08-04|1982-03-23|Lucas Industries Limited|Fuel pumping apparatus|
    US4329962A|1980-09-29|1982-05-18|General Motors Corporation|Diesel injection pump timing control with eccentric cam pin|
    JPS6131157Y2|1981-03-12|1986-09-10|
    JPS6140939Y2|1982-06-16|1986-11-21|
    US4448174A|1983-02-18|1984-05-15|Diesel Kiki Co., Ltd.|Distributor type fuel injection pump adaptable to internal combustion engines with a wide range of the number of cylinders|
    DE3336870A1|1983-10-11|1985-04-25|Robert Bosch Gmbh, 7000 Stuttgart|FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES|
    DE3512019A1|1985-04-02|1986-10-02|Robert Bosch Gmbh, 7000 Stuttgart|FUEL INJECTION PUMP|
    JPS62117241U|1986-01-20|1987-07-25|
    DE19723865A1|1997-06-06|1998-12-10|Bosch Gmbh Robert|Fuel injection pump with a temperature-controlled valve in the spray adjuster|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2729807A|DE2729807C2|1977-07-01|1977-07-01|Fuel injection pump with means for adjusting the start of injection for internal combustion engines|
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