• 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 pumping apparatus for supplying fuel to an internal combustion engine includes a spring loaded fuel quantity control member which is moved by increasing fluid pressure in a chamber to reduce the amount of fuel supplied. The pressure in the chamber is controlled by a pair of ON/OFF valves, the first valve admitting fluid to the chamber and the second valve allowing fluid to escape from the chamber. When the valves are closed an hydraulic lock is created to prevent movement of the member by mechanical forces applied to it during operation of the apparatus.
    公开号:SU1338786A3
    申请号:SU3933303
    申请日:1985-07-11
    公开日:1987-09-15
    发明作者:Бонин Жан-Клод
    申请人:Лукас Индастриз Паблик Лимитед Компани (Фирма)；
    IPC主号:
    专利说明:

    in the fuel line 6 and the valve 13 installed in the drain fuel line 7. The electromagnetic actuator 11 is equipped with an electronic control system 14. Throttles can be installed in the fuel lines 6 and 7. The latter make it possible to limit the power of the flow of fuel entering and out of the control cavity 4. As a result, it is damped.
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    The invention relates to mechanical engineering, more specifically to engine building, namely, to the fuel injection equipment of internal combustion engines, and can be used in devices for the delivery of fuel to an internal combustion engine with a high pressure rotary fuel pump.
    The purpose of the invention is to increase efficiency by optimizing the control of operating parameters.
    FIG. 1 schematically shows a fuel supply device; in fig. 2 - 4 - the same, options for implementation.
    The device comprises a high pressure rotary fuel cell 1,
    connected via a drive shaft 2 g motor for synchronous operation with it and having a pressure sensitive fuel movable regulating element 3 with a control cavity 4, a fuel priming pump 5 also operating synchronously with the engine and the device, and fuel lines, one of which is injection 6 connecting the discharge line of the fuel pumping pump 5 to the control cavity 4, and the other drain 7, connecting the control cavity 4 to the drain, and the third fuel line 8 connecting the fuel injection line pump 5 with exhaust ports 9 located in the housing 10 of pump 1. The device also consists of a valve control unit with an electromagnetic actuator 11. The valve control unit is made in the form of a first valve 12,
    the movement of the regulating member 3 and the accuracy of its adjustment is increased. The shut-off elements of the valves 12 and 13 can be made in the form of a twin spool connected to the system 14. The valve 12 opens when it is necessary to obtain an increase in pressure in the control cavity 1, and valve 13 is open when it is necessary to reduce the pressure. 4 hp f-ly, 4 ill.
    installed in the fuel supply line 6, and the second valve 13 installed in the drain fuel line 7. The electromagnetic actuator 11 can be equipped with an electronic control system 14, and inductors 6 and the drain 7 fuel lines can be installed chokes 15 and 16,
    installed along the course of the fuel after the first 12, as well as before and after the second 13 valves, respectively. The locking elements of the first 12 and second 13 valves can be made in the form
    a dual spool 17 connected to the electronic control system 14. In addition, the locking element 18 of the first valve 12 may be provided with a control element 19 and subjected to pressure of the fuel generated by the fuel priming pump 5. The drive shaft 2 of the rotary fuel pump is integral with the annular element 20 of large
    the diameter in which the front end of the regulating element 3 is located is legal; it also functions as a distributor. The other end of the regulating element 3 with the control cavity 4 is housed in the housing 10 of the rotary pump. The adjusting element 3 is made with the possibility of rotational and axial movement relative to the housing. Rotational movement of the regulator
    element 3 is carried out from the drive shaft 2 through an interface, consisting of radial grooves with an internal inclined polarity in the annular element 20, a diametrical hole 21 in the front end of the regulating element 3, plungers 22 placed in the diametric hole 2 and pushers including located in the radial grooves of the annular elm 20 with the possibility of radial movement along its inclined surfaces, the shoes 23 with the rollers 24 at their outer ends. The rollers 24 serve to engage with the surface of the surrounding annular cam (not shown). At the inner ends, the shoes are fixed to the plungers 22 and have additional inclined surfaces to mate with the inclined surfaces of the annular element. Thus, the axial position of the shoes 23 with rollers 24 relative to the annular element 20 determines the maximum outward movement of the plungers 22 and the maximum amount of fuel supplied in this position. The interplunger part of the diametral opening is connected through the passage 25 with the groove 26 extended in the longitudinal direction on the outer surface of the regulating element 3. The groove 26 may alternately coincide with the inlet 9 or outlet (not shown) channels located in the housing 10. The axial movement of the regulating element 3 is carried out under the pressure of the fuel in the control cavity 4 and the compression spring 27 placed in the recess of the drive shaft 2. When the regulating element 3 moves under the action of the spring 27, the plungers 22 can move further outwards, thereby a larger portion of fuel placed in the interplunger part of the diametral orifice 21, which the next movement of the plungers inwards is fed into the engine.
    The electronic control system determines the amount of current in the solenoid actuator 11 of the valves 12 and 13 in accordance with a number of operating parameters of the engine and the required operating parameters of the device.
    The device works as follows.
    When the pressure in the injection line of the fuel recharge pump 5 changes, the axial position of the regulating element 3 changes, which leads to fluctuations in the amount of fuel supplied by the device. In order to prevent these undesirable oscillations, the control electronic system 14 opens the first 12 or 5
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    swarm 13 valves. Valve 12 opens when it is necessary to obtain an increase in pressure in the control cavity 1, and valve 13 when it is necessary to reduce the pressure. If the valves 12 and 13 are closed, a hydraulic closure is created in the cavity 4 and the movement of the regulating element 3 stops due to the forces applied to it. The control cavity 4 is isolated except for the case when the valve 12 is open, then any changes in the pressure in the injection line of the fuel feed pump 5.
    The control system 14 opens One of the valves 12 or 13 at a time when the risk of improper installation due to pressure fluctuations or due to the application of mechanical force is the least likely, therefore, the valves should be controlled during one cycle of operation of the device. The installation in the fuel lines 5 and 7 and 8 of the chokes 15 and 16 makes it possible to limit the power of the flow of fuel entering the control cavity 4 and out of it. As a result, the movement of the regulating member 3 is damped and its control accuracy is improved.
    If the shut-off elements of the valves 12 and 13 are made in the form of a double spool 17 with a central groove connected to the control cavity 4, and the spool in the middle position closes both valves 6 and 7, the electromagnetic actuator must be able to hold the spool in the middle position and for this purpose a solenoid device or a stepper motor can be used.
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    In the event of any leakage of fuel into the cavity 4 from the discharge channels or grooves 26 along the working gap between the regulating element 3 and the housing 10, the pressure in the cavity 4 increases and thus causes the regulating element 3 to reduce the amount of fuel supplied to the engine. In order to avoid an unjustified increase in the fuel supply to the engine in the event of a failure of the electronic control system under the action of a prune 27 in the fuel line connecting the fuel priming pump 5 to the inlet ports 9 of pump 1, an emergency shut-off valve is installed.
    The valves 12 and 13 are arranged so that they move to a closed position when the engine is stopped and therefore the regulating element 3 is closed, the operator detects any malfunction of the shut-off valve. engine behavior when it stops. The shut-off valve should be inspected every time the engine is stopped to minimize the risk of it not failing.
    If the throttle 16 is made in the form of two series resistances, it is possible to ensure the emergency operation of the engine if one of the valves 12 and 13 does not work in the open position. Other
    the valve can work by exercising some pressure control in
    cavity A and the amount of fuel supplied by the device to the engine.
    If the shut-off element of the first valve 12 is provided with a separate control element 19 and is subjected to the pressure generated by the fuel by the boost pump 5, then the throttle 16 is installed after the second valve 13. In the event of a control system malfunction and the current supply to the element 19 fails, the regulating element 3 automatically shifts to a lower fuel supply position regardless of whether the device has an emergency shut-off valve. However, the control system is designed in such a way that, in the event, it is defective whith it provides a small current supply element 19 for closing the valve 12, the valve 13 is in the open position. Now, when the engine is started, the regulating element 3, as a result of the action of the spring 27, is in the position of maximum fuel supply and the engine
    it starts, but since the pressure in the discharge line of the fuel-priming pump increases, at a certain value the valve 12 opens and the fuel enters the control cavity 4. This causes the regulating element 3 to move in the direction of the lowest fuel supply, but the final position of the distributor depends on the pressure in the cavity 3, and the latter depends on the pressure created by the fuel priming pump 5, the resistance value created by the valve 12 and the throttle 16.
    All these values can be selected so that the engine runs at a safe speed.
    Such an embodiment of the device for supplying fuel to the engine increases its efficiency by optimizing the control of operating parameters.
    权利要求:
    Claims (3)
    [1]
    Invention Formula
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    1. A device for supplying fuel to an internal combustion engine, comprising a high pressure rotary fuel pump associated with the engine, operating synchronously and having a pressure sensitive movable control element with a control cavity, a fuel booster pump that operates synchronously with the engine, fuel lines one of which is an injection pump, which connects the fuel priming pump to the control cavity, and the other - drainage, which connects the control cavity to the drain, and is located in the fuel pipelines An armature control unit with an electromagnetic drive, characterized in that, in order to increase efficiency by optimizing the control of operating parameters, the valve control unit is designed as a first valve installed in the fuel supply line connecting the priming pump to the control cavity, and a second valve installed in the drain pipe connecting the control cavity with the drain, the first and second valves being designed to simultaneously shut off the fuel lines and fill Rani control cavity except the case where the change is effected the sensor position to the pressure regulating member.
    2. The device according to claim 1, characterized in that the electromagnetically actuated valve control unit is equipped with an electronic control system.
    [2]
    3. The device according to claim I, characterized in that the locking elements of the first and second valves of the valve control unit are made in the form of a double spool, and the electromagnetic actuator is equipped with an electronic control system.
    [3]
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    71338786
    A. Device according to claims. 2 and 3, characterized in that each of the fuel lines is provided with a choke.
    5. A device according to claim 2, characterized in that the fuel line connecting the control cavity to the drain is provided with a throttle, and the stop element of the first valve is equipped with a control element and is subjected to the pressure exerted by the top booster pump.
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    Editor L.Pcholinsk
    Compiled by V. Dolgov Tehred I. Popovich
    Order 4151/59 Circulation 503 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    Proofreader V. Booth ha
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    同族专利:
    公开号 | 公开日
    CA1263282A|1989-11-28|
    IT1185242B|1987-11-04|
    GB2161624A|1986-01-15|
    GB2161624B|1988-11-09|
    BR8503323A|1986-04-01|
    US4770141A|1988-09-13|
    FR2567577B1|1989-03-03|
    ES8701303A1|1986-11-16|
    IT8521558D0|1985-07-12|
    JPH0759918B2|1995-06-28|
    JPS6134346A|1986-02-18|
    DE3524980A1|1986-01-16|
    ES545098A0|1986-11-16|
    GB8517246D0|1985-08-14|
    MX161341A|1990-09-10|
    DE3524980C2|1996-05-30|
    FR2567577A1|1986-01-17|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2524476C2|2009-03-18|2014-07-27|Роберт Бош Гмбх|High-pressure pump and composite pusher|US2010420A|1932-07-01|1935-08-06|Sulzer Ag|Engine control device|
    US2598528A|1948-12-20|1952-05-27|Louis O French|Fuel injection apparatus|
    GB1252437A|1968-02-07|1971-11-03|
    DE1751765A1|1968-07-25|1971-08-05|Bosch Gmbh Robert|Control device for injection internal combustion engines|
    FR2017326A1|1968-09-04|1970-05-22|Bosch|
    FR2099913A5|1970-06-25|1972-03-17|Nippon Denso Co|
    JPS5322605B2|1974-02-28|1978-07-10|
    GB1490084A|1974-03-19|1977-10-26|Cav Ltd|Liquid fuel injection pumping apparatus|
    DE2503345C2|1975-01-28|1986-12-18|Robert Bosch Gmbh, 7000 Stuttgart|Fuel injection pump for internal combustion engines|
    DE2835771C2|1978-08-16|1987-10-22|Parker Hannifin Nmf Gmbh, 5000 Koeln, De|
    GB2037365B|1978-11-25|1982-12-08|Lucas Industries Ltd|Liquid fuel injection pumping apparatus|
    US4275691A|1979-02-05|1981-06-30|Wolff George D|Electromechanical precision governor for internal combustion engines|
    DE2932672C2|1979-08-11|1989-03-09|Daimler-Benz Ag, 7000 Stuttgart, De|
    GB2069723B|1980-02-15|1983-12-14|Lucas Industries Ltd|Fuel pumping apparatus|
    DE3007663A1|1980-02-29|1981-09-10|Daimler-Benz Ag, 7000 Stuttgart|ELECTRONIC CONTROL|
    GB2108727B|1980-10-29|1985-02-06|Lucas Industries Ltd|Fuel injection pumping apparatus|
    US4446835A|1980-12-31|1984-05-08|Lucas Industries Limited|Liquid fuel injection pumping apparatus|
    DE3101167A1|1981-01-16|1982-08-26|Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen|"ELECTRONICALLY CONTROLLED SPRAY ADJUSTER"|
    JPS5893945A|1981-11-30|1983-06-03|Hino Motors Ltd|Fuel injection controller|
    AT20377T|1982-04-05|1986-06-15|Friedmann & Maier Ag|ELECTRONIC-HYDRAULIC SETTING SYSTEM FOR ADJUSTING THE DELIVERY START OF INJECTION PUMPS FOR INJECTION COMBUSTION ENGINES.|
    JPS58222925A|1982-06-18|1983-12-24|Nippon Denso Co Ltd|Distributor type fuel injection device|GB8724795D0|1987-10-22|1987-11-25|Lucas Ind Plc|Fuel injection pump|
    JP2717247B2|1987-11-27|1998-02-18|東レ・ファインケミカル株式会社|Bulky yarn and method for producing the same|
    DE3929932C1|1989-09-08|1991-03-21|Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De|
    DE3937962C1|1989-11-15|1991-05-02|Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De|
    US5215060A|1991-07-16|1993-06-01|Stanadyne Automotive Corp.|Fuel system for rotary distributor fuel injection pump|
    US5737828A|1996-06-19|1998-04-14|American Standard Inc.|Continuous heat exchanger forming apparatus|
    DE19635458A1|1996-08-31|1998-03-05|Tiefbohrtechnik Gmbh Tbt|Membrane pump|
    DE10152236B4|2001-10-20|2009-09-24|Robert Bosch Gmbh|Method and device for operating an internal combustion engine|
    法律状态:
    2010-11-20| REG| Reference to a code of a succession state|Ref country code: RU Ref legal event code: MM4A Effective date: 20040712 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR8411091A|FR2567577B1|1984-07-12|1984-07-12|IMPROVEMENTS ON FUEL INJECTION PUMPS FOR INTERNAL COMBUSTION ENGINES|
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