• 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 pumping apparatus includes an injection pump having a piston which can be subjected to a varying fluid pressure to determine the timing of injection of fuel. Resilient means is provided to bias the piston and a member is provided to act as a stop for the piston. The member is coupled to a temperature responsive device whereby when the engine is cold, the stop determines the position of the piston so that a predetermined timing is obtained for starting the engine. The stop moves when the engine is warm to permit the piston to vary the timing of the apparatus over the full range.
    公开号:SU826972A3
    申请号:SU772555403
    申请日:1977-12-16
    公开日:1981-04-30
    发明作者:Томас Джон Скиннер Роберт
    申请人:Лукас Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to engine structure. A known rotary fuel injection pump is a pump for an internal combustion engine containing a rotor with radially arranged plungers, pumping a pump with suction and supply lines, a cam washer to act on the plungers of the rotor, and a device for adjusting the angle of advance of the injector, in order to adjust the angle of advance of the injector. in the form of a spring-loaded piston, connected with a cam washer and placed in a cylinder, the supraporeal cavity of which is formed by its walls and is free from the spring by the end of the piston, connected to pumping line pumping pump f. . A disadvantage of the known pump is that it does not provide for the control of the advance angle of fuel injection depending on the thermal state of the engine. The purpose of the invention is to provide adjustment of the fuel injection advance angle depending on the thermal state of the engine. This goal is achieved by the fact that the piston is provided with a movable stop, loaded with an elastic element and connected via an intermediate link with an actuator sensitive to temperature changes. The intermediate link is made up of a cable, a lever and a push rod, which are connected in series with each other, the latter of which is connected to the engine's operating mechanism. A spring is precompressed between the components of the pusher. FIG. 1 isobrgshen pump, longitudinal section; in fig. 2 - the same, cross section; in fig. 3 shows a device for adjusting the fuel injection advance angle, longitudinal section; FIG. 4 - intermediate link sensitive to temperature change of the engine actuator, longitudinal section; in fig. 5 - the same, end view. The pump contains placed in the housing 1 of the rotor 2 with radially located plungers 3, pump up the pump 4 with the suction 5 and the feed
    6 lines, a cam washer 7 for acting on the plungers 3 of the rotor 2 and a device for adjusting the fuel injection advance angle. The latter is made in the form of a spring-loaded piston 8 connected with a cam washer 7 and placed in a cylinder 9, the piston cavity of which is connected to the delivery line 6 of the pumping pump through channel 11. The piston 8 is loaded with a spring 12. In addition, the piston 8 is equipped with a movable stop 13 loaded with an elastic element 14 and connected to a temperature-sensitive actuator 15 of the engine through an intermediate link, made in the form of a cable 16 connected in series, a lever 17 and a composite pusher 18, the latter of which is associated with the actuator 15 of the engine. A spring 19 is pre-compressed between the component parts of the pusher 18.
    The pump works as follows.
    When the rotor 2 rotates in the housing 1, the plungers 3 interact with the cam disc 7. At the moment of the convergence of the plungers 3, the fuel is pumped. The beginning of the convergence of the plungers 3 and, therefore, the beginning of the fuel supply by the pump is determined by the angular position of the cam disc 7, which depends on the position of the spring-loaded piston 8 associated with it. The spring 12, acting on the piston 8, moves it in the direction corresponding to the decrease in angle advance fuel supply. The fuel pressure in cavity 10, depending on the engine speed, on the contrary, tends to move the piston 8 in the direction corresponding to an increase in the advance angle of the fuel. As the angular frequency of rotation of the engine shaft increases, the pressure in the cavity 10 rises, which leads to an increase in the fuel injection advance angle.
    As the angular frequency of rotation of the engine shaft decreases, the pressure of the fuel created by the pumping pump 4 decreases and the fuel advance angle also decreases, but to the limit determined by the position of the movable stop 13.
    If the dialer is heated, then the actuator 15, which is sensitive to temperature changes, compresses the elastic element 14, moves the movable stop 13 from the piston 8 to act on it through the pusher 18, the lever 17 and the cable 16. In this case, the piston 8 has the greatest range for
    displacement depending on the speed of the engine. When the engine is cold, the actuator 15 weakens its effect, and the elastic element 14 causes the movable stop 13 to move toward the piston 8, which causes a reduction in the path of the latter to decrease with decreasing pressure in the cavity 10, i.e. even at low engine speeds, the fuel injection advance angle will remain increased
    Thus, supplying the piston with a movable stop, loaded with an elastic element and connected to an actuator sensitive to temperature, provides for the control of the fuel injection advance angle depending on the engine thermal state.
    权利要求:
    Claims (3)
    [1]
    1. A rotary fuel injection pump for an internal combustion engine, containing a rotor with radially arranged plungers in the housing, booster pump
    with suction and delivery lines, a cam washer for acting on the rotor plungers and a device for adjusting the fuel injection advance angle, made in the form of a spring-loaded piston connected to the cam washer and placed in the cylinder, with a piston cavity formed by its walls and free from spring the end of the piston is connected to the delivery line of the pumping-up pump, which is designed so that, in order to ensure the adjustment of the fuel injection advance angle depending on the thermal state vigatel, the piston is provided with a movable stop, loaded and an elastic member connected via an intermediate element with temperature sensitive actuator motor.
    [2]
    2. Pump according to Claim 1, characterized in that the intermediate member is made up of a cable of a lever and a composite pusher connected in series with each other, the latter of which is connected to the engine's operating mechanism.
    [3]
    3. Pump according to claim 2, characterized in that a spring is pre-compressed between the components of the pusher.
    Sources of information taken into account in the examination
    1. Copyright certificate of the USSR No. 333283, cl. F 02 M 59/20, 1972.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU826972A3|1981-04-30|Rotor fuel injecting pump
    US4355621A|1982-10-26|Injection advance device
    US3758241A|1973-09-11|Fuel injection pump for multi-cylinder internal combustion engines
    US4122813A|1978-10-31|Injection timing adjustment apparatus
    GB1586215A|1981-03-18|Fuel injection pump
    GB1470152A|1977-04-14|Fuel injection pump for diesel engines
    US3730155A|1973-05-01|Fuel injection apparatus for spark plug-ignited internal combustion engines
    US4473048A|1984-09-25|Fuel injection pump
    US3338168A|1967-08-29|Fuel injection pump
    JPS551418A|1980-01-08|Injection timing device for distribution-type fuel injection pump
    US3894523A|1975-07-15|Fuel supply system
    US4426983A|1984-01-24|Liquid fuel pumping apparatus
    US4354474A|1982-10-19|Fuel injection advance angle control apparatus
    KR880010233A|1988-10-07|Fuel Injection Pumps for Internal Combustion Engines
    US4403582A|1983-09-13|Fuel injection control system
    EP0129281B1|1987-09-30|Improvements in injection pump regulator systems for internal combustion engines
    JPH0660607B2|1994-08-10|Fuel injection pump
    US5138999A|1992-08-18|Fuel pumping apparatus
    GB1474217A|1977-05-18|Speed governors for fuel injection pumps
    EP0118385B1|1987-11-25|Fuel injection pump with plunger stroke control
    US4245608A|1981-01-20|Idling control apparatus for internal combustion engine
    US4531492A|1985-07-30|Fuel injection timing and governor control apparatus
    US3841286A|1974-10-15|Engine runaway preventing safety means associated with a distributor-type fuel injection pump
    US4658793A|1987-04-21|Fuel injection pumps for internal combustion engines
    US4342301A|1982-08-03|Distributor type fuel injection pump
    同族专利:
    公开号 | 公开日
    JPS6032023B2|1985-07-25|
    ES465163A1|1978-10-01|
    MX146596A|1982-07-14|
    JPS5376223A|1978-07-06|
    FR2374515A1|1978-07-13|
    IT1088446B|1985-06-10|
    GB1591619A|1981-06-24|
    US4214564A|1980-07-29|
    FR2374515B1|1982-11-19|
    DE2756040A1|1978-06-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    GB529671A|1939-06-06|1940-11-26|Albion Motors Ltd|Improvements in or relating to means for facilitating the starting of internal combustion engines|
    DE2003927A1|1970-01-29|1971-08-12|Bosch Gmbh Robert|Control device for the fuel-air mixture in internal combustion engines working with external ignition|
    GB1342711A|1970-05-30|1974-01-03|Cav Ltd|Liquid fuel injection pumping apparatus|
    US3640259A|1970-06-12|1972-02-08|Alfa Romeo Spa|Regulator for gasoline injection pumps|
    JPS5026911A|1974-06-27|1975-03-20|
    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|
    GB1530130A|1975-10-22|1978-10-25|Lucas Industries Ltd|Liquid fuel pumping apparatus|
    JPS5263533A|1975-11-20|1977-05-26|Nissan Motor Co Ltd|Start-up device for diesel engine|DE2641445C2|1976-09-15|1985-06-05|Robert Bosch Gmbh, 7000 Stuttgart|Adjustment device for the start of injection in a fuel injection pump for an internal combustion engine|
    FR2450352B1|1979-02-28|1981-04-17|Cav Roto Diesel|
    DE2909537A1|1979-03-10|1980-09-18|Bosch Gmbh Robert|FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES|
    DE2909555A1|1979-03-10|1980-09-18|Bosch Gmbh Robert|FUEL INJECTION PUMP|
    GB2050647B|1979-05-01|1983-02-09|Nissan Motor|Fuel injection pump with automatic injection advance|
    US4457284A|1979-06-07|1984-07-03|Stanadyne, Inc.|Cold temperature advance mechanism|
    JPS5856345Y2|1979-10-24|1983-12-26|
    US4357925A|1980-12-17|1982-11-09|The Bendix Corporation|Distributor injection pump for diesel engines|
    US4535743A|1983-04-15|1985-08-20|Nippon Soken, Inc.|Fuel injection apparatus for an internal combustion engine|
    DE3448579C2|1983-04-15|1997-07-31|Nippon Soken|Electronically controlled fuel-injection unit for combustion engine|
    DE3345155A1|1983-12-14|1985-11-07|Robert Bosch Gmbh, 7000 Stuttgart|FUEL INJECTION PUMP|
    GB9026013D0|1990-11-29|1991-01-16|Lucas Ind Plc|Fuel pumping apparatus|
    CN103437890B|2013-08-28|2015-08-12|宁波富莱茵汽车部件有限公司|Oil injection pump signal detection control mechanism and method|
    CN107100774B|2017-06-20|2019-04-12|青岛淄柴博洋柴油机股份有限公司|It is a kind of for accurately adjusting the devices and methods therefor of boat diesel engine fuel supply advance angle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB52939/76A|GB1591619A|1976-12-17|1976-12-17|Fuel injection pumping apparatus|
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