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2. 发明申请

US20070290075A1 Fuel Injection Valve For Internal Combustion Engines 审中-公开
标题翻译：内燃机燃油喷射阀
公开(公告)号：US20070290075A1
公开(公告)日：2007-12-20
申请号：US10594150
申请日：2005-01-19
申请人： Dieter Junger , Joerg-Peter Fischer , Thilo Kreher , Jens-Peter Nagel
发明人： Dieter Junger , Joerg-Peter Fischer , Thilo Kreher , Jens-Peter Nagel
IPC分类号： F02M61/04
CPC分类号： F02M47/027 , F02M45/086 , F02M2200/46 , F02M2547/001
摘要： A fuel injection valve, having an outer valve needle cooperating with a valve seat for opening and closing at least one outer injection opening, an inner valve needle disposed in the outer valve needle and cooperating with the valve seat for opening and closing at least one inner injection opening. The fuel pressure in a control chamber that can be filled with fuel under pressure acts on the outer valve needle and the inner valve needle in such a way that a closing force in the direction of the valve seat is exerted on the inner valve needle and the outer valve needle. An inner pressure face disposed on the inner valve needle and a shoulder is disposed on the outer valve needle, which each, on being subjected to pressure, exert a hydraulic opening force, oriented counter to the closing force, on the inner valve needle and the outer valve needle. The outer valve needle is at least partly surrounded by an inflow chamber, in which fuel under pressure is always present, and the inner pressure face and the outer pressure face are always subjected to the fuel of the inflow chamber.
摘要翻译：一种燃料喷射阀，具有与用于打开和关闭至少一个外部喷射开口的阀座配合的外部阀针，设置在外部阀针中的内部阀针，并与阀座配合，用于打开和关闭至少一个内部注射开口。可以在压力下填充有燃料的控制室中的燃料压力作用在外部阀针和内部阀针上，使得阀座方向上的关闭力施加在内部阀针上，并且外阀针。设置在内侧阀针和肩部上的内侧压力面配置在外侧阀针上，各个被压力施加相对于闭合力取向的液压开启力在内侧阀针上，外阀针。外阀针至少部分被流入室包围，流入室中始终存在压力下的燃料，内压面和外压面总是经受流入室的燃料。

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