专利名称：FUEL INJECTION VALVE AND METHOD FOR
OPERATING A FUEL INJECTION VALVE
发明人：KEIM, NORBERT申请号：EP01960155.8申请日：20010808公开号：EP1309792A1公开日：20030514
摘要：The invention relates to a fuel injection valve (1), particularly for fuel injectionsystems of internal combustion engines, for directly injecting fuel into the combustionchamber of an internal combustion engine. Said fuel injection valve comprises a magnetcoil (10), an armature (20) that is displaced in a closing direction by a restoring spring (23),and a valve needle (3), which is non-positively connected to said armature (20) and which isprovided for actuating a valve closing body (4) that, together with a valve seat (6), forms atight seat. The armature (20) comprises a first armature part (20a) and a second armaturepart (20b), whereby the restoring spring (23) is supported on the first armature part (20a),and the second armature part (20b) is non-positively connected to the valve needle (3).The restoring spring (23), via the first armature part (20a) and the second armature part(20b), displaces the valve needle (3) in the closing direction in such a manner that thevalve closing body (4) is held tightly against the valve seat (6).
申请人：ROBERT BOSCH GMBH
地址：Postfach 30 02 20 70442 Stuttgart DE
国籍：DE
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