发明名称 Kraftstoffeinspritzventil für Brennkraftmaschinen
摘要 The invention relates to a fuel injection valve for internal combustion engines, comprising a valve member (11) that can be displaced in the axial direction in a valve body (1). Said valve member cooperates with a valve seat surface (15) on the valve body (1) and with a tight surface (13) to control an injection orifice (17). The end of said member facing away from the combustion chamber is impinged upon by a valve spring (31) arranged in a spring chamber (29) in the closed position. The valve member (11) has a pressure shoulder (21) working in the opened direction, which projects into a pressure chamber (19) that can be filled with high pressure fuel. The spring chamber (19) is connected to the pressure chamber (19) through a choke gap and is closed in relation to a fuel return system so that the spring chamber (29) acts as a hydraulic damper when the valve member (11) lifts to the opened position.
申请公布号 DE19752496(A1) 申请公布日期 1999.06.02
申请号 DE19971052496 申请日期 1997.11.27
申请人 ROBERT BOSCH GMBH, 70469 STUTTGART, DE 发明人 RIPPER, WOLFGANG, 70327 STUTTGART, DE;WAGNER, WERNER, 70839 GERLINGEN, DE;DITTUS, BERND, 71732 TAMM, DE;MACK, MANFRED, 89174 ALTHEIM, DE
分类号 F02M61/10;F02M45/08;F02M45/12;F02M61/20;F02M63/00;(IPC1-7):F02M45/08 主分类号 F02M61/10
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