发明名称 Brennstoffeinspritzventil
摘要 The invention relates to a fuel injection valve (1) for fuel injection systems of internal combustion engines, especially for the direct injection of fuel into the combustion chamber of an internal combustion engine. The fuel injection valve provided for in the invention comprises a magnet coil (8), an armature (11) impinged upon by the magnet coil (8) and pushed in a direction of lift against a first return spring (27) and a valve needle (13) which is linked to a valve closing body (14). The valve needle (13) has a first stop end (32) for the armature (11) which can be displaced on it and the armature (11) can in addition be impinged upon by a second return spring (40). The invention also provides for a second, stationary stop end (33) for the armature (11). The second return spring (40) pushes against the armature (11) against the direction of lift and in a position of rest, when the magnet coil (8) is not excited, maintains the armature (11) against the second stop end (33) in such a way that the armature (11) is situated at a predetermined distance from the first stop end (32) embodied on the valve needle (13).
申请公布号 DE19816315(A1) 申请公布日期 1999.10.14
申请号 DE19981016315 申请日期 1998.04.11
申请人 ROBERT BOSCH GMBH 发明人 EICHENDORF, ANDREAS;SEBASTIAN, THOMAS;PILGRAM, GUIDO;NORGAUER, RAINER
分类号 F02B75/12;F02M51/06;F02M51/08;F02M61/10;F02M63/00;F16K31/06;(IPC1-7):F02M51/08 主分类号 F02B75/12
代理机构 代理人
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