• 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:
    1. Fuel injection device for an internal combustion engine, comprising a housing with an axial bore, a main injection plunger and an additional element mounted for axial movement — in an axial bore, a nozzle located at the output end of the axial bore, a variable volume injection chamber with an inlet a hole formed in the housing between the main plunger and the additional element, a measuring chamber formed in the housing between the additional element ohm and nozzle, fuel canada, including a fuel conduit, a channel connected to the injection timing control chamber and a measuring chamber, and an electronically controlled control valve, in order to simplify the design and increase speed, the control valve is located Kansas in the fuel inlet channel in front of the inlet opening of the injection timing control chamber. . .
    公开号:SU1135433A3
    申请号:SU802868607
    申请日:1980-01-17
    公开日:1985-01-15
    发明作者:И.Сиссон Альберт；Дж.Льюис Дональд；П.Уолтер Ричард；Р.Эрвин Луис；Р.Келсо Чарльз
    申请人:Дзе Бендикс Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    2. The device according to claim 1. characterized by the fact that the additional element is made in the form of a spool. .
    3. The device according to paragraphs. 1 and 2, which is different because a spring is installed between the plunger and the additional element,
    4. The device according to claim 3, about the fact that the plunger
    and an additional undercut element to accommodate the ends of the plunger.
    5. The device according to p. T, which is tactile in that it contains a check valve mounted in the additional element with the possibility of periodic interruption of the hydraulic connection between the plunger and the additional element.
    6. The device on 1Sh. 1 and 2, characterized in that longitudinal axial channels are made in the lower part of the additional element, and
    An annular cavity is made in the axial hole of the body, with the axial channels connected at one end to the measuring chamber and the other to one of the nauseous channels, at the lower position of the additional element, through the annular cavity.
    7. Device by. 5, characterized in that the additional sleep element & ken e of the middle part of the annular groove and the transverse and axial holes communicated with it, the last of which communicates with the longitudinal axial channels, and an additional spring loaded non-return valve is installed in the additional element for intermittently interrupting communication ring groove and measuring chamber, and ring & groove is made with the possibility of its connection with one on the fuel channels in the lower position of the additional element.
    8. The device according to claim 3, wherein the spring placed between the plunger and the additional element is installed with the possibility of displacing the latter in the direction of the nozzle.
    9. The device nd p. 1, is about the fact that it is equipped with a reservoir or return pipe: a pipe, and the chamber for controlling the injection elements and the measuring chamber soybean: dinene with the latter through one of
    fuel channels.
    10. The device in accordance with Clause D, which is based on the fact that the fuel supply channel is connected to a source of fuel pressure.
    11. The method of operation of the fuel injection device, which consists in filling the control chamber and the metering chamber with fuel at the inlet pressure, applies a force to the plunger to axially displace it in accordance with the engine operating cycle.
    and inject fuel through the nozzle from the metering chamber using an additional element, so that, in order to improve speed, prior to the start / injection of fuel through the nozzle with the injection code of the plunger, fuel is released from the injection control chamber with the help of an electronically controlled valve, and the start of the fuel starts from the moment the latter is closed.
    12. The method according to claim 11, characterized in that the filling of the metering chamber starts at the closed position of the electronically controlled valve at the suction stroke of the plunger and the additional element and ends when the electrical signal to the electronically controlled valve is stopped to receive fuel into the regulating chamber injection points.
    This invention relates to a motor structure.
    A fuel-injecting device is known, an engine for internal erection comprising a housing with an axial bore, a main injection plunger and an additional element mounted for axial movement in the axial bore, a forsick located at the output end of the axial bore, a variable volume injection chamber with inlet a hole formed in the body between the main plunger and the additional element, a measuring chamber formed with the body between the additional element coping and nozzle, fuel channels, including a fuel feed channel connected to the injection timing control chamber and a metering chamber, and an electronically controlled control valve. The method of operation of a known fuel injection device is that the control chamber and the merging chamber are filled with fuel at the inlet pressure, apply force to the plunger to axially displace it in accordance with the engine's operating cycle and inject fuel through the nozzle from the metering chamber using an additional element l . A disadvantage of the known devices and method is the complexity, design and reduced speed. The purpose of the invention is to simplify the design and increase speed. This goal is achieved by the fact that in an fuel injection unit for an internal combustion engine comprising a housing with an axial bore, a main injection plunger and an additional element mounted for axial movement in the axial bore, a nozzle located at the outlet end of the axial bore, and a torque control chamber AC injection with an inlet, formed with a housing between the main plug 1) and an additional element, a measuring chamber formed in a housing All between the additional element and the nozzle, the fuel channels, including a run-up channel connected to the injection timing control chamber and a metering chamber, and an electronic adjustment valve, the latter is located in the fuel feed passage in front of the injection timing control chamber. At the same time, the additional element is designed as a spool, and a spring is installed between the plunger and the additional element. The plunger and the additional member may be provided with recesses to accommodate the ends of the spring. In addition, the device contains a check valve installed in the additional element with the possibility of periodically interrupting the hydraulic connection between the plunger and the additional element, longitudinal axial channels are made in the lower part of the additional element, and an annular cavity is formed in the axial opening of the housing, with axial channels connected at one end with a measuring chamber, and the other with one of the fuel channels, at the lower position of the additional element, through the annular cavity. An additional element may be provided in the middle part with an annular groove and transverse and axial holes communicated with it, the last of which communicates with longitudinal axial channels, with an additional spring loaded non-return valve installed in the additional element for periodically interrupting communication between the annular groove and the measuring chamber and the annular groove is complete with the possibility of its connection with one of the fuel channels at the lower position of the additional element. A spring placed between the plunger and the additional element is installed with the possibility of displacing the latter in the direction of the nozzle. The device can be equipped with a tank or return pipe, and the injection timing control chamber and the measuring chamber are connected to the latter via one of the fuel channels. A fuel inlet channel is associated with a source of fuel pressure. According to the method of operation of the fuel injection device, I conclude. Because the control chamber and the metering chamber are filled with fuel at the inlet pressure, a force is applied to the plunger to axially displace it in accordance with the engine’s duty cycle and inject fuel through the nozzle from the metering chamber with an additional element before fuel is injected through during the injection stroke of the plunger, the fuel is released from the chamber by adjusting the injection moments using an electronically controlled valve, and fuel injection is started from the moment of closing of the latter. At the same time, the filling of the metering chamber starts at the closed position of the electronically controlled valve on the suction side of the plunger and the additional element and ends when the electric signal to the electronically controlled valve is stopped at the moment the fuel enters the chamber of control of the injection moments. FIG. 1 is a schematic diagram of a fuel injection device; FIG. 2 is a cross section of the fuel injection device of FIG. 3 shows the device at the beginning of the injection stroke of the plunger with the electronically controlled valve open; in FIG. 4 shows a device with a plunger injection sue and a closed electronically controlled valve in FIG. 5 — device with cut-off supply toplva in FIG. 6 — device when filling the metering chamber with fuel; in fig. 7 - the device at the time of the completion of filling the fuel of the metering chamber when the electronically controlled valve is opened; in fig. 8 - sweep a cam pro-for the plunger drive along the angle of rotation of the two shoulders lever v. in fig. 9 - graphical presentation of the operation cycle (the upper graph shows the plunger's trajectory, and the lower one - the moments of the opening and closing of the electronically controlled valve along the angle of the rotational movement of the crankshaft). The device comprises a housing 1 with an axial bore 2, a main plunger for injection 3 and an additional element 4 mounted for axial movement in the axial bore 2, a nozzle 5 located at the output end of the axial bore 2, a chamber 6 for adjusting the injection moments of variable volume with the inlet a bore 7 formed in the housing 1 between the end 8 of the main plunger 3 and the additional element 4, a measuring chamber 9 formed in the housing between the additional element 4 and the nozzle 5, the fuel channels 10, on chayu1sche toplive.podvod conductive passage 11 is connected to control chamber 6 and the injection timing with the measuring chamber 9, and the electron-controlled by the control valve 12. The last fuel delivery is present in the channel 11 before the inlet opening 7 of the chamber 6 controlling the injection points. Additional element 4 is made in the form of a spool. A spring 13 is installed between the plunger 3 and the additional element 4. The plunger 3 and the additional element 4 are provided with recesses 14 and 15 for accommodating the ends of the spring 13. In the additional element 4 with a possibility of periodically breaking the hydraulic connection between the plunger 3 and the additional element 4 a check valve 16 is installed In the lower part of the additional element 4 there are longitudinal axial channels 17, and in the axial bore 2 of the body there is an annular cavity 18, with the axial channels 17 connecting at one end to the metering chamber 9, and the other with one of the fuel channels 10, at the lower position of the additional element 4, through the annular cavity 18. The additional element 4 is provided in its lower part with an annular groove 19 and associated with it transverse 20 and axial 21 holes, the last of which is connected with longitudinal axial channels 17, with an additional spring-loaded check valve 22 being installed in the additional element 4 for periodically interrupting communication between the annular groove 19 and the measuring chamber 9, and the annular groove 19 is designed with Its connections with one of the fuel channels 10 at the lower position of the additional element 4. The spring 13, placed between the plunger 3 and the additional element 4, is mounted with the possibility of displacing the latter towards the nozzle 5. The device is equipped with a reservoir 23 or a return pipe 24, and the injection timing control and the metering chamber 9 are connected to the latter via one of the fuel channels 10. The fuel supply passage 11 is connected to the fuel pressure source 25. Plunger 7 of the vent 3 is powered by a two-armed lever 26. The device is operated in a special manner. The control chamber 6 and the metering chamber 9 are filled with fuel at the inlet pressure j apply a force from the double-arm lever 26 to the plunger 3 to axially displace it in accordance with the engine operating cycle and inject fuel through the nozzle 5 from the metering chamber 9 with the help of additional element 4. Up at the beginning of fuel injection through the nozzle 5 during injection: during the plunger 3, fuel is discharged from the chamber 6 of the adjustment of injection points by means of an electronically controlled valve 12, and fuel injection is started from omenta closing the latter. The filling of the metering chamber 9 starts at the closed position of the electronically controlled valve 12 at the suction stroke of the plunger 3 and the additional element 4 and ends when the electric signal to the electronically controlled valve 12 ceases at the moment the fuel enters the injection timing control chamber 6. Thus, the proposed technical solution provides a simplified design and improved speed. FIG. (pus.
    12
    (rig 7
    ъ
    g,
    6 /
    l
    g
    FIG. 8
    权利要求:
    Claims (12)
    [1]
    1. A fuel-injection device for an internal combustion engine, comprising a housing with an axial hole, a main discharge plunger and an additional element mounted with the possibility of axial movement 1 in the axial hole, an injector located at the output end of the axial hole, a variable volume injection timing control chamber with an inlet formed in the housing between the main plunger and the additional element, a measuring chamber formed in the housing between the additional element and nozzle, fuel channels including a fuel supply channel connected to the injection torque control chamber and a metering chamber, and an electronically controlled control valve, characterized in that, in order to simplify the design and improve performance, the electronically controlled valve is located in the fuel supply channel in front of the inlet of the injection torque control chamber. . .
    SU ", 1135433
    [2]
    2. The device according to p. ^ Characterized in that the additional element is made in the form of a spool. .
    [3]
    3. The device according to paragraphs. I and 2, characterized by the fact that a spring is installed between the plunger and the additional element,
    [4]
    4. The device according to claim 3, which stipulates that the plunger and the additional element are provided with recesses to accommodate the ends of the plunger.
    [5]
    5. The device according to π. 1, characterized in that it comprises a check valve installed in an additional element with the possibility of periodically interrupting the hydraulic connection between the plunger and the additional element.
    [6]
    6. The device according to paragraphs. 1 and 2, characterized in that longitudinal axial channels are made in the lower part of the additional element, and an annular cavity is made in the axial hole of the housing, the axial channels being connected at one end to the measuring chamber and the other to one of the fuel channels, in the lower position an additional element through the annular cavity.
    [7]
    7. The device according to I. 5, characterized in that the additional element is provided in the middle part with an annular groove and associated transverse and axial openings, the last of which communicates with the longitudinal axial channels, and in the additional element an additional spring-loaded check valve is installed to periodically interrupt communication between an annular groove and a measuring chamber, and the annular groove is made with the possibility of its connection with one of the fuel channels at the lower position of the additional element.
    [8]
    8. The device according to claim 3, characterized in that the spring located between the plunger and the additional element is installed with the possibility of displacement of the latter in (the side of the nozzle.
    [9]
    9. The device nd π. 1, characterized in that it is equipped with a reservoir or return pipe, and the chamber for regulating the moments of injection and the metering chamber are connected to the latter through one of the fuel channels.
    [10]
    10. A device according to claim G, wherein the fuel supply channel is connected to a fuel pressure source.
    [11]
    11. The method of operation of the fuel-injection device, which consists in the fact that the control chamber and the metering chamber are filled with fuel at the inlet pressure, apply force to the plunger for its axial discharge movement in accordance with the engine operating cycle and inject fuel through the nozzle from the metering chamber using an additional element , they distinguish it with the fact that, in order to improve performance, before the start of fuel injection through the nozzle, the fuel is released from the control chamber during the discharge stroke of the plunger Nia injection points by means of electronically controlled valve and the fuel injection start with the closing of the latter.
    [12]
    12. The way to pop. 11, characterized in that the filling of the metering chamber begins when the electronically controlled valve is closed in the suction stroke of the plunger and the additional element and ends when the electric signal to the electronically controlled valve is cut off when fuel enters the injection control chamber.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1135433A3|1985-01-15|Fuel-injection device and method of its operation
    EP0643221B1|1998-04-22|Fuel Supply Apparatus
    US4396151A|1983-08-02|Fuel injection system for internal combustion engines
    US4667638A|1987-05-26|Fuel injection apparatus for internal combustion engine
    US4625694A|1986-12-02|Fuel pumping apparatus
    KR940701500A|1994-05-28|Fuel injectors for internal combustion engines
    US4976236A|1990-12-11|Fuel injection pump
    GB2314588A|1998-01-07|Device for the combined injection into an i.c. engine of fuel and an additional fluid, eg water
    SU1192636A3|1985-11-15|Delivery pump for internal combustion engine
    EP0334364A1|1989-09-27|High pressure fuel injection device for engine
    PL186623B1|2004-02-27|Fuel injection system
    JP3070961B2|2000-07-31|How to reduce the injection residual quantity of the injection pump
    US4140095A|1979-02-20|Liquid fuel pumping apparatus
    US4590910A|1986-05-27|Liquid fuel injection pumping apparatus
    CA1170903A|1984-07-17|Single solenoid floating piston distributor pump
    EP0059943A1|1982-09-15|Fuel injection pump for internal combustion engines
    US4576133A|1986-03-18|Liquid fuel injection pumping apparatus
    US5619970A|1997-04-15|Fuel pumping apparatus
    US4320733A|1982-03-23|Fuel pumping apparatus
    KR100303119B1|2001-11-30|Fuel injection timing control device of diesel engine
    KR0174251B1|1999-03-20|Fuel injection pump for internal combustion engine
    KR960007902Y1|1996-09-18|Fuel pump for low-smoking
    KR900002878B1|1990-05-01|Liquid type electronic fuel disconnection valve having control function for injection ratio and oiler function for fuel injection pump of diesel engine
    SU1321892A1|1987-07-07|Electrically controlled atomizer for diesel engine with fuel feed system
    SU1663215A1|1991-07-15|Fuel-feed control system of internal combustion engine
    同族专利:
    公开号 | 公开日
    EP0014142B1|1983-09-21|
    EP0014142B2|1989-06-21|
    AU5401479A|1980-07-31|
    BR8000300A|1980-09-30|
    AU535759B2|1984-04-05|
    UA5760A1|1994-12-29|
    ES487024A1|1980-06-16|
    DE3064859D1|1983-10-27|
    EP0014142A1|1980-08-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2451821C2|2006-05-10|2012-05-27|Роберт Бош Гмбх|Fuel injector with pressure-equalised control valve|DE231352C|
    DE459676C|1925-09-19|1928-05-10|Fried Krupp Germaniawerft Akt|Fuel injection pump for diesel engines with airless injection|
    US2843043A|1954-06-15|1958-07-15|Schneider Wilhelm|Injection pumps|
    AT189446B|1954-12-28|1957-03-25|Wilhelm Schneider|Injection pump for internal combustion engines|
    DE2131841C3|1971-06-26|1974-01-03|Maschinenfabrik Augsburg-Nuernberg Ag, 8900 Augsburg|Device for controlling fuel injection in internal combustion engines|
    US3951117A|1974-05-30|1976-04-20|Cummins Engine Company, Inc.|Fuel supply system for an internal combustion engine|
    US4129253A|1977-09-12|1978-12-12|General Motors Corporation|Electromagnetic unit fuel injector|
    CA1100836A|1977-12-21|1981-05-12|William H. Leckie|Fuel injection timing and control apparatus|CA1170903A|1980-12-17|1984-07-17|Jack R. Phipps|Single solenoid floating piston distributor pump|
    US4394962A|1981-02-23|1983-07-26|Cummins Engine Company, Inc.|Solenoid operated fuel injector and control valve|
    DE3123325A1|1981-06-12|1982-12-30|Robert Bosch Gmbh, 7000 Stuttgart|FUEL INJECTION DEVICE FOR INTERNAL COMBUSTION ENGINES|
    US4422424A|1981-06-23|1983-12-27|The Bendix Corporation|Electronically controlled fuel injection pump|
    US4427152A|1981-07-13|1984-01-24|The Bendix Corporation|Pressure time controlled unit injector|
    DE3360320D1|1982-03-25|1985-08-01|Deere & Co|Injector pump unit with a sleeve-valve controlled floating piston for internal-combustion engines|
    US4402456A|1982-04-02|1983-09-06|The Bendix Corporation|Double dump single solenoid unit injector|
    US4721247A|1986-09-19|1988-01-26|Cummins Engine Company, Inc.|High pressure unit fuel injector|
    DE4100832C2|1991-01-14|2000-07-13|Bosch Gmbh Robert|Injection pump for diesel engines|
    US5333786A|1993-06-03|1994-08-02|Cummins Engine Company, Inc.|Fuel injection device for an internal combustion engine|
    CN103850846A|2012-11-29|2014-06-11|谈世新|Target type oil spraying igniter|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US06/006,948|US4281792A|1979-01-25|1979-01-25|Single solenoid unit injector|
    US06/006,949|US4235374A|1979-01-25|1979-01-25|Electronically controlled diesel unit injector|LV931226A| LV5682A3|1979-01-25|1993-11-15|A device for fuel injection and a quick fit for work|
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