发明公开
- 专利标题： FUEL INJECTION SYSTEM
- 专利标题（中）： 燃油喷射系统
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申请号： EP03722810.3申请日： 2003-05-01
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公开(公告)号： EP1516115A1公开(公告)日： 2005-03-23
- 发明人: HARCOMBE, Anthony T. , PANESAR, Lukhbir, S. , LAW, David J. C. , KNIGHT, Andrew R. , DRAPER, David E.
- 申请人： Delphi Technologies, Inc.
- 申请人地址： PO Box 5052 Troy, MI 48007 US
- 专利权人： Delphi Technologies, Inc.
- 当前专利权人： Delphi Technologies, Inc.
- 当前专利权人地址： PO Box 5052 Troy, MI 48007 US
- 代理机构： Hopley, Joanne Selina
- 优先权： GB0210305 20020503; GB0215487 20020704; GB0225392 20021031; EP03250957 20030217; EP03252188 20030407
- 国际公布： WO2003093668 20031113
- 主分类号： F02M45/02
- IPC分类号： F02M45/02 ; F02M59/36 ; F02M63/02 ; F02D41/40
摘要：
A fuel system for use in an internal combustion engine, particularly of the type provided with an after treatment device for reducing emissions levels, comprises a fuel pump (10) having a pumping cycle during which fuel is pressurized to a high level within a pumping chamber for delivery to an injector (14). The injector (14) is arranged to provide a primary fuel injection event, and a secondary fuel injection event within the same pumping cycle, in use. The injector (14) includes a valve needle (16) which is engageable with a valve needle seating to control fuel delivery through an injector (14) and injection control valve means for controlling movement of the valve needle (16) so as to control the primary and secondary fuel injection events. The primary injection event may be a main injection of fuel, and the secondary injection event may be a late-post injection of fuel for regeneration of the after treatment device. Engine having an after treatment device.
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