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    • 1. 发明公开
    • 연료 분사 장치
    • 燃油喷射装置
    • KR1020050107585A
    • 2005-11-14
    • KR1020057015449
    • 2004-02-18
    • 로렌지 게엠베하
    • 코흐,한스-요아힘레쎌,호르스트샤이베,볼프강슈뢰틀렌,귄터발터,노르베르트
    • F02M59/08F02M57/00F02M59/26F02M59/28
    • F02M57/025F02M59/08F02M59/265F02M59/28F02M61/205
    • 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.
    • 本发明涉及一种燃料喷射装置,其包括实施为双活塞泵的燃料泵,所述双重活塞泵用于将燃料泵入内燃机的燃烧室至分别与其相关联的喷射器,并且针对其喷射过程进行了优化 。 双活塞泵包括两个活塞(70,73),它们沿共同的管线平行泵送并设置有控制边缘。 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)上调节泵送的端部。 在注射开始之前根据发动机操作参数提供控制压力,以便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注射开始的变化,相应地调节调节泵送开始的第一活塞(70)的控制杆(71)。