发明公开
- 专利标题： FUEL RECIRCULATION ARRANGEMENT AND METHOD FOR DIRECT FUEL INJECTION SYSTEMS
- 专利标题（中）： 装置和方法进行回收燃料的直喷式
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申请号： EP99945726.0申请日： 1999-02-12
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公开(公告)号： EP1073834A1公开(公告)日： 2001-02-07
- 发明人: LORRAINE, Jack, R.
- 申请人： Siemens Automotive Corporation
- 申请人地址： 2400 Executive Hills Drive Auburn Hills,Michigan 48326-2980 US
- 专利权人： Siemens Automotive Corporation
- 当前专利权人： Siemens Automotive Corporation
- 当前专利权人地址： 2400 Executive Hills Drive Auburn Hills,Michigan 48326-2980 US
- 代理机构： Neill, Andrew Peter
- 优先权： US65376 19980423
- 国际公布： WO9954617 19991028
- 主分类号： F02M51/00
- IPC分类号： F02M51/00
摘要：
An arrangement and method for recirculating highly pressurized fuel from a fuel rail (12) back to a high pressure pump inlet in which a fuel outflow is controllably allowed from the fuel rail (12) into a nozzle (48) to form a high pressure stream of fuel directed into a port (52) connected to the inlet of the high pressure pump (24) and a flow of fuel from a low pressure supply pump (22) is merged into the stream by a surrounding annular flow pattern. This uses the energy of high pressure fuel to increase the pressure at the inlet of the high pressure pump (24) and greatly reduces the tendency for the fuel vapor to form.
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