• 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 liquid fuel injection pumping apparatus includes a fluid pressure operable piston coupled to a timing component of the apparatus. A first spring is provided to bias the piston towards a retard position. A pair of abutments are provided at the ends of the first spring and adjusting means is provided to determine the spacing of the abutments. The adjusting means is controlled by a first control means the setting of which is varied with temperature. A second spring acts on the piston and is located between one of the abutments and the piston and second control means adjusted in accordance with the setting of the fuel control of the apparatus, is provided to determine the axial setting of the adjusting means.
    公开号:SU1039448A3
    申请号:SU803003443
    申请日:1980-11-03
    公开日:1983-08-30
    发明作者:Томас Хаммок Майкл
    申请人:Лукас Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    FIELD: engine building. A distribution fuel pump for an internal combustion engine is known, comprising a housing, a rotor with a plunger mounted therein, a cam ring for interacting with the latter and modifying the fuel supply timing, a booster pump, means for controlling the amount of fuel supplied, valve means for controlling the output pressure of the booster pump and a device for changing the angular position of the cam ring including a cylinder connected to the booster pump with a spring loaded piston and an abbreviated fixture for changing its position, made in the form of two stops with a variable distance between them using a rod with a spring placed between them; the rod is fixed on the stop placed on the side of the piston, and the other stop is made in the form of an annular element to ensure passage rod ij. A disadvantage of the known pump is that the device for changing the conditional position of the cam ring does not provide for adjusting the piston position depending on the engine operation mode and thus does not ensure the optimum fuel advance angle. The purpose of the invention is to increase efficiency. This goal is achieved by the fact that in a distribution fuel pump for an internal combustion engine, comprising a housing, a rotor with a plunger installed therein, a cam ring for interacting with the latter and changing the fuel supply moment, a booster pump, means for controlling the amount of fuel supplied, valve means controlling the outlet pressure of the booster pump and device for changing the angular position of the cam ring, including a cylinder connected to the booster pump with a piston loaded with a spring and equipped with a device for changing its position, made in the form of two stops with a variable distance between them by means of a rod and a spring placed between them while the rod is fixed on the stop of the piston, and the other is made in the form of an annular element to ensure the passage of the rod, the device for changing the angular position of the cam ring is additionally equipped with a spring mounted between the stop and the piston, the caps of the rod are annular with the shaft Protrusions fixed to the housing with a groove sleeve, inside which the annular shaft and the element are mounted, and a shaft with a slot placed inside the annular shaft, the annular element being further provided with protrusions for engaging with the grooves of the sleeve connected to the protrusions of the annular shaft with cam profiles , ycTynafM and recesses, and the rod is provided with a ring for interacting with the latter, a device for changing the position of the piston is provided with a lever transmission connecting the annular shaft with the means l controlling the amount of fuel injected by a slotted shaft is provided with a control lever for CIM. Figure 1 shows the structural diagram of the pump; Fig. 2 is a structural diagram of a device for changing the angular position of the cam ring with a compressed spring installed between the piston and the stop; Fig. 3 is a structural diagram of a device for changing the angular position of a cam ring with a spring released between the piston and the stop; figure 4 is an annular shaft, figure 5 is a shaft with a slot; on figb - annular element in the plan; 7 - annular element, side view. The pump includes a housing 1, a rotor 2 installed therein with a plunger 3, a cam ring 4 for interacting with the latter and changing the fuel supply points, a booster pump 5, means 6 for controlling the amount of fuel supplied, valve means 7 for controlling the output pressure of the booster pump 5 and The device for changing the angular position of the cam ring 4, including a cylinder 8 connected to the booster pump 5, a piston 9 loaded with a spring and equipped with a device for changing its position, is made in the form of two stops 10 and 11 with a variable distance between with the help of the rod 12 and the spring 13 placed between them, while the rod 12 is fixed on the stop 11 placed on the side of the piston 9 and the other stop Yu is made in the form of an annular element for providing passage of the rod 12. The device for changing the angular position of the cam ring 4 is additionally equipped with a spring 14 installed between the stop 11 and the piston 9, covering the rod 12 with the annular shaft 15 with the projections 16 fixed to the casing 1 by the sleeve 17 with the grooves 18, inside Secondly, an annular shaft 15 and an anvil 10 are installed, and a shaft 19 with a slot 20 are placed inside the annular shaft 15, the annular anvil 10 being additionally provided with protrusions 21 for sealing with bushing and 18 sleeves 17 associated with the projections 16 of the annular shaft 15 profiles 22, steps 23 and depressions 24, and rod 12 is provided with a finger 25 to interact with the latter. A device for changing the position of the piston 9 is provided with a lever gear 26 connecting the annular shaft 15 with means for controlling the amount of fuel supplied. The shaft 19 with a slit 20 is provided with a control lever 27 for connecting it either with an operator's handle or with a temperature-responsive device. The pump works as follows. When the rotor 2 rotates, the cam ring 4 acts on the plungers 3, which pump fuel into the engine. Fuel is supplied to the pump from the booster pump 5, which also supplies fuel to the cylinder 8, and it acts on the piston 9, the latter acts on the cam ring 4 and sets the preset angle depending on the speed mode | Correction of the angle of advance and the fuel supply for the load is made through the lever gear 26 connected to the annular shaft 15. The operator adjusts the angle of the advance temperature angle with the lever 27 connected to the shaft 19 with the slot 20. Thus, the use of the proposed design pump provides increased efficiency.
    FIG. 1
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    权利要求:
    Claims (3)
    [1]
    1. DISTRIBUTIVE FUEL PUMP for an internal combustion engine, comprising a housing, a rotor with plungers installed therein, a cam ring for interacting with the latter and changing the supply moment, fuel, a booster pump, means for controlling the amount of fuel supplied, valve means for controlling the outlet pressure of the booster pump and device 'for changing the angular position of the cam ring, including a cylinder connected to the booster pump with a piston, loaded with a spring and equipped with a device for changing its position, made in the form of two stops with a variable distance between them using a rod and a spring placed between them, while the rod is fixed to a stop placed on the piston side, and the other stop is made in the form of an annular element to ensure the passage of the rod characterized in that, in order to increase efficiency, the device for changing the angular position of the cam ring is further provided with a spring installed between the stop and. a piston covering the rod with an annular shaft with protrusions fixed to the housing by a sleeve with grooves inside of the ring-shaped shaft and the element are installed, and a shaft with a slot located inside the ring-shaped shaft, the ring-shaped element is additionally provided with protrusions for fixing with grooves of the sleeve associated with the protrusions of the ring-shaped shaft with cam profiles, ledges and recesses, and the shaft is provided with a finger for interactions with the latter.
    [2]
    2. The pump according to claim 1, with the fact that the device for changing the position of the piston is equipped with a lever gear connecting the annular shaft with means for controlling the amount of fuel supplied.
    [3]
    3. The pump according to claims 1 and 2, with the fact that the shaft with pro. equipped with a control lever.
    >
    类似技术:
    公开号 | 公开日 | 专利标题
    US4292012A|1981-09-29|Liquid fuel injection pumping apparatus
    SU1039448A3|1983-08-30|Fuel distributing pump
    US4074667A|1978-02-21|Liquid fuel injection pumping apparatus
    US4262645A|1981-04-21|Injection timing control device for distributor-type fuel injection pump
    US3147746A|1964-09-08|Injection pump adjusting structure
    US3433159A|1969-03-18|Liquid fuel injection pumps
    GB2073331A|1981-10-14|Fuel injection pump
    US4080109A|1978-03-21|Fuel injection pumping apparatus
    US3314406A|1967-04-18|Liquid fuel pumping apparatus for internal combustion engines
    CA1194374A|1985-10-01|Fuel pumping apparatus
    US4406264A|1983-09-27|Governor for engines
    JPH0660607B2|1994-08-10|Fuel injection pump
    US4397615A|1983-08-09|Fuel injection pumping apparatus
    US4299542A|1981-11-10|Fuel injection pumping apparatus
    US4187822A|1980-02-12|Liquid fuel pumping apparatus
    US4446835A|1984-05-08|Liquid fuel injection pumping apparatus
    US3628889A|1971-12-21|Hydraulic injection time controlling device in fuel injection pumps
    GB2028916A|1980-03-12|Fuel Supply System for Internal Combustion Engine
    US5138999A|1992-08-18|Fuel pumping apparatus
    US3046963A|1962-07-31|Fuel injection systems for internal combustion engines with automatic variation of the advance of fuel injection
    US4493617A|1985-01-15|Fuel injection pump with plunger stroke control
    GB2196153A|1988-04-20|Fuel system for a multi-cylinder engine
    US4508489A|1985-04-02|Fuel injection pumps
    US4462370A|1984-07-31|Fuel injection pumping apparatus
    US4382751A|1983-05-10|Fuel pumping apparatus
    同族专利:
    公开号 | 公开日
    ES8200743A1|1981-11-16|
    DE3041365C2|1989-07-06|
    PL227546A1|1981-08-07|
    US4384562A|1983-05-24|
    FR2468745B1|1985-10-04|
    DE3041365A1|1981-05-14|
    JPS6354885B2|1988-10-31|
    JPS5675926A|1981-06-23|
    ES496118A0|1981-11-16|
    GB2064821B|1983-02-02|
    IT1133733B|1986-07-09|
    CS238608B2|1985-12-16|
    IT8025704D0|1980-10-31|
    GB2064821A|1981-06-17|
    PL127411B1|1983-10-31|
    FR2468745A1|1981-05-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3815569A|1972-08-07|1974-06-11|V Riddell|Involute grinding wheel dresser|
    GB1440563A|1972-09-12|1976-06-23|Cav Ltd|Fuel pumping apparatus|
    FR2299514B1|1975-01-31|1981-06-19|Roto Diesel Sa|
    US4079719A|1976-03-26|1978-03-21|Stanadyne, Inc.|Timing control for fuel pump|
    US4037574A|1976-05-21|1977-07-26|Stanadyne, Inc.|Timing control for fuel injection pump|
    DE2644042C2|1976-09-30|1986-12-18|Robert Bosch Gmbh, 7000 Stuttgart|Adjustment device for the start of injection in a fuel injection pump for an internal combustion engine|
    US4214569A|1978-04-10|1980-07-29|Heine Friedrich W|Fireplace stove|
    FR2450352B1|1979-02-28|1981-04-17|Cav Roto Diesel|GB2068590B|1980-01-22|1983-06-22|Lucas Industries Ltd|Fuel pumping apparatus|
    DE3121108C2|1981-05-27|1989-04-20|Robert Bosch Gmbh, 7000 Stuttgart, De|
    GB8300638D0|1983-01-11|1983-02-09|Lucas Ind Plc|Fuel injection pumps|
    IT1163279B|1983-05-02|1987-04-08|Spica Spa|ADVANCE VARIATOR FOR FUEL INJECTION PUMP|
    DE3345155A1|1983-12-14|1985-11-07|Robert Bosch Gmbh, 7000 Stuttgart|FUEL INJECTION PUMP|
    FR2569774B1|1984-09-06|1986-09-05|Cav Roto Diesel|IMPROVEMENTS ON FUEL INJECTION PUMPS FOR INTERNAL COMBUSTION ENGINES|
    GB8528922D0|1985-11-23|1986-01-02|Lucas Ind Plc|Fuel injection pumping apparatus|
    DE4129837C2|1991-09-07|2002-06-27|Bosch Gmbh Robert|Speed controller for fuel injection pumps of internal combustion engines|
    DE19849925A1|1998-10-29|2000-05-04|Bosch Gmbh Robert|Fuel injection pump|
    EP1840474A3|2006-03-29|2009-07-15|Fafco Incorporated|Kit for solar water heating system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB7938100|1979-11-02|
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