发明申请
- 专利标题: Fuel injection valve for internal combustion engines
- 专利标题(中): 内燃机燃油喷射阀
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申请号: US10526308申请日: 2003-04-25
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公开(公告)号: US20050284964A1公开(公告)日: 2005-12-29
- 发明人: Markus Ohnmacht , Patrick Mattes , Werner Teschner , Wilhelm Christ , Friedrich Boecking
- 申请人: Markus Ohnmacht , Patrick Mattes , Werner Teschner , Wilhelm Christ , Friedrich Boecking
- 优先权: DE10245573.2 20020927
- 国际申请: PCT/DE03/01350 WO 20030425
- 主分类号: F02M61/18
- IPC分类号: F02M61/18 ; F02M59/00
摘要:
A fuel injection valve for internal combustion engines, having a valve body with a bore defined on its end toward the combustion chamber by a conical valve seat, with a valve needle disposed longitudinally displaceably in the bore and a sealing face with two sealing portions on its end toward the combustion chamber with the second conical face being disposed on the combustion chamber side of the first conical face. An annular groove extending between the conical faces has an end facing away from the combustion chamber which acts as a sealing edge upon contact of the valve sealing face with the valve seat. Recesses embodied in the valve seat and/or on the valve sealing face hydraulically connect the annular groove with a portion of the second conical face located on the combustion chamber side of the annular groove.
公开/授权文献
- US07347389B2 Fuel injection valve for internal combustion engines 公开/授权日:2008-03-25
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