基本信息:
- 专利标题： HIGH-PRESSURE ELECTROMAGNETIC FUEL INJECTOR
- 专利标题（中）：电磁高压燃料喷射
- 申请号：EP96914713.1 申请日：1996-05-20
- 公开(公告)号：EP0830503B1 公开(公告)日：2003-12-17
- 发明人： TIMMER, Robert, C. , STRAUB, Robert, Daniel , TEERMAN, Richard, Frederic , DEYOUNG, Beckie, J. , VANALLSBURG, Michael
- 申请人： Diesel Technology Company
- 申请人地址： P.O. Box 919 Wyoming, MI 49509 US
- 专利权人： Diesel Technology Company
- 当前专利权人： Diesel Technology Company
- 当前专利权人地址： P.O. Box 919 Wyoming, MI 49509 US
- 代理机构： Chave, Lynne Fiona
- 优先权： US487123 19950607
- 国际公布： WO96041076 19961219
- 主分类号： F02M63/00
- IPC分类号： F02M63/00
摘要：
A high-pressure electromagnetic fuel injector (10) having a dual-function valve (44) directly controlled by an electric solenoid (34). Fuel pressure in a control volume chamber (20) is controlled by the dual-function valve (44), and a separate control valve (46) is controlled as a function of fuel pressure in the control volume chamber (20). A spray tip valve (50) is, in turn, controlled as a function of the pressure of fuel controlled by the control valve to inject fuel through a spray tip orifice (32). The dual-function valve (44) spills fuel during and after the control valve (46) closes, thus reducing the amount of uncontrolled fuel at the end of an injection. The dual-function valve (44) also provides a drain path through which to vent any fuel that leaks past the control valve.