KRAFTSTOFFEINSPRITZEINRICHTUNG
    2.
    发明公开

    公开(公告)号:EP1595071A1

    公开(公告)日:2005-11-16

    申请号:EP04712043.1

    申请日:2004-02-18

    申请人: L'ORANGE GMBH

    IPC分类号: F02M47/02 F02M47/04 F02M61/20

    摘要: The invention relates to a fuel injection device for injecting fuel into the combustion chamber of an internal combustion engine. The fuel injection device comprises a fuel pump (1) which is used to pump fuel placed under increasing and decreasing pressure, in addition to an injector (5) having an injector nozzle and an injector needle (12) in order to control the beginning and end of injection. The injector needle (12) is maintained during the injection intervals in a position in which it rests on a valve seat by means of a force acting on the injector needle (12) in the direction of closure. The injector needle (12) can be impinged upon by the pressure of the fuel pumped by the fuel pump (1) in order to produce a force acting in the direction of opening on a ring surface. Injection begins if the force directed in the direction of opening exceeds the force directed in the direction of closure, whereby the force directed in the direction of closure is variably adjusted prior to the beginning of injection according to engine operation parameters.

    摘要翻译: 本发明涉及一种用于将燃料喷射到内燃机的燃烧室中的燃料喷射装置。 除了具有喷射器喷嘴和喷射器针(12)的喷射器(5)以外,燃料喷射装置还包括用于泵送增压和减压的燃料的燃料泵(1),以便控制开始和 注射结束。 在喷射间隔期间,喷射针(12)通过在闭合方向上作用在喷射针(12)上的力保持在其停靠在阀座上的位置。 喷射器针头(12)可以通过由燃料泵(1)泵送的燃料的压力来冲击,以便产生作用在环形表面上的打开方向上的力。 如果沿打开方向引导的力超过沿关闭方向引导的力,则开始注射,由此根据发动机操作参数在开始注射之前可变地调整指向关闭方向的力。

    KRAFTSTOFFEINSPRITZEINRICHTUNG
    4.
    发明授权

    公开(公告)号:EP1597474B1

    公开(公告)日:2006-06-21

    申请号:EP04712002.7

    申请日:2004-02-18

    申请人: L'ORANGE GMBH

    摘要: The invention relates to a fuel injection device comprising a fuel pump embodied as a double piston pump which is used to pump fuel into the combustion chamber of an internal combustion engine to an injector respectively associated therewith and which is optimized with regard to the injection process thereof. The double piston pump comprises two pistons (70, 73) which pump in parallel along a common line and which are provided with control edges. A control rod (71,74) is associated with each piston (70,73) and is used to control the beginning and end of the pumping. The beginning of the pumping can be adjusted on the first piston (70) and the end of the pumping can be adjusted on the second piston (73). A control pressure is provided prior to the beginning of injection according to engine operation parameters in order to adjust the force acting upon the injector needle (12) in the direction of closure, said pressure enabling pressure to be impinged upon the valve needle (12) in the direction of closure. In order to compensate an alteration in the beginning of injection caused thereby, the control rod (71) of the first piston (70) regulating the beginning of pumping is adjusted accordingly.

    KRAFTSTOFFEINSPRITZEINRICHTUNG
    7.
    发明公开

    公开(公告)号:EP1597474A1

    公开(公告)日:2005-11-23

    申请号:EP04712002.7

    申请日:2004-02-18

    申请人: L'ORANGE GMBH

    摘要: The invention relates to a fuel injection device comprising a fuel pump embodied as a double piston pump which is used to pump fuel into the combustion chamber of an internal combustion engine to an injector respectively associated therewith and which is optimized with regard to the injection process thereof. The double piston pump comprises two pistons (70, 73) which pump in parallel along a common line and which are provided with control edges. A control rod (71,74) is associated with each piston (70,73) and is used to control the beginning and end of the pumping. The beginning of the pumping can be adjusted on the first piston (70) and the end of the pumping can be adjusted on the second piston (73). A control pressure is provided prior to the beginning of injection according to engine operation parameters in order to adjust the force acting upon the injector needle (12) in the direction of closure, said pressure enabling pressure to be impinged upon the valve needle (12) in the direction of closure. In order to compensate an alteration in the beginning of injection caused thereby, the control rod (71) of the first piston (70) regulating the beginning of pumping is adjusted accordingly.

    摘要翻译: 燃料喷射装置技术领域本发明涉及一种燃料喷射装置,其包括构造为双活塞泵的燃料泵,所述双活塞泵用于将燃料泵入内燃机的燃烧室中并分别与其相关的喷射器并且关于喷射过程被优化 。 双活塞泵包括两个活塞(70,73),这两个活塞沿公共线并行泵送并且设有控制边缘。 控制杆(71,74)与每个活塞(70,73)相关联并用于控制泵送的开始和结束。 可以在第一活塞(70)上调节泵送的开始,并且可以在第二活塞(73)上调节泵送的结束。 根据发动机操作参数在喷射开始之前提供控制压力,以调节在关闭方向上作用在喷射器针头(12)上的力,所述压力使得压力能够撞击在阀针(12)上, 在关闭的方向。 为了补偿由此引起的喷射开始的变化,相应地调节调节泵送开始的第一活塞(70)的控制杆(71)。