公开(公告)号：US06874704B2

公开(公告)日：2005-04-05

申请号：US10296584

申请日：2002-03-26

申请人： Gerhard Mack ,  Taner Narin ,  Holger Rapp ,  Ulrich Kunzi ,  Ralf Heinecke ,  Wilhelm Christ ,  Friedrich Boecking ,  Wolfgang Fleiner ,  Manfred Fink

发明人： Gerhard Mack ,  Taner Narin ,  Holger Rapp ,  Ulrich Kunzi ,  Ralf Heinecke ,  Wilhelm Christ ,  Friedrich Boecking ,  Wolfgang Fleiner ,  Manfred Fink

IPC分类号： F02M47/02 ,  F02M61/12 ,  F02M59/00

CPC分类号： F02M61/12 ,  F02M47/027

摘要： A fuel injection valve for internal combustion engines having a valve body in which a bore is embodied, a valve seat face, at least one injection opening embodied on the end toward the combustion chamber of the bore, and at least one injection opening connecting the bore with the combustion chamber of the engine. A nozzle needle is longitudinally displaceably guided in the bore and on its end toward the combustion chamber it has a sealing face, which cooperates with the valve seat face and thus controls the at least one injection opening. The nozzle needle has a central longitudinal bore, in which an inner needle is disposed that is fixed immovably relative to the valve body. The nozzle needle is guided over at least part of its length on the inner needle, so that the nozzle needle is kept exactly centrally in the bore at all times.

摘要翻译： 一种用于内燃机的燃料喷射阀，其具有其中具有孔的阀体，阀座面，在朝向所述孔的燃烧室的端部上实施的至少一个注射开口，以及连接所述孔的至少一个注射开口 与发动机的燃烧室。 喷嘴针在孔中纵向可移位地引导，并且其端部朝向燃烧室，其具有密封面，该密封面与阀座面配合，从而控制至少一个注射开口。 喷嘴针具有中心纵向孔，其中内针被设置成相对于阀体不动地固定。 喷嘴针在其内针上至少部分长度被引导，使得喷嘴针始终保持在孔的精确中心。