发明名称 |
Returnless fuel delivery system |
摘要 |
In one embodiment of the present invention, a "returnless" fuel system for a motor vehicle is disclosed. A "series-pass" fuel pressure regulator in the system provides fuel of a regulated pressure to a fuel rail comprising at least one fuel injector. A "bypass" fuel pressure regulator provides fuel with a regulated pressure to the series pass regulator. An in-line fuel filter is located downstream from the bypass regulator, such that only the fuel which reaches the series-pass regulator is filtered. A check valve is located downstream from the bypass regulator as well, to prevent fuel pressure bleed-down through the fuel pump and the bypass regulator. A pressure relief valve is coupled to allow fuel with a pressure above a predetermined value to flow around the check valve.
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申请公布号 |
US5673670(A) |
申请公布日期 |
1997.10.07 |
申请号 |
US19950498205 |
申请日期 |
1995.07.05 |
申请人 |
FORD MOTOR COMPANY |
发明人 |
POWELL, ALVIN ARTHUR;MITCHELL, JR., JAMES WITHERSPOON;WATTLEWORTH, ROBERT EUGENE;PETRICH, KYLE LANCE;BLANTON, BRIAN MICHAEL |
分类号 |
F02M69/46;F02M69/54;(IPC1-7):F02M41/00 |
主分类号 |
F02M69/46 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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