Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2007-11-20
2009-06-30
Gimie, Mahmoud (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
C123S506000
Reexamination Certificate
active
07552720
ABSTRACT:
A fuel pump for a direct injection internal combustion engine having a body with a valve seat. The valve includes a valve head and the valve is movably mounted to the body between an open position and a closed position. In its open position, the valve head is spaced from the valve seat white in its closed position, the valve head abuts against the valve seat and closes the valve. An electric coil upon energization moves the valve to an open position and, conversely, upon deenergization allows the valve to move to a closed position. A control circuit controls the energization of the coil to reduce the pump noise during operation of the engine, especially at low speeds.
REFERENCES:
patent: 4643155 (1987-02-01), O'Neill
patent: 5277156 (1994-01-01), Osuka et al.
patent: 5558066 (1996-09-01), Zhao
patent: 6178951 (2001-01-01), Doreau et al.
patent: 6318343 (2001-11-01), Nakagawa et al.
patent: 6336445 (2002-01-01), Yamazaki et al.
patent: 6390072 (2002-05-01), Breeden
patent: 6526947 (2003-03-01), Shimada et al.
patent: 6694952 (2004-02-01), Yamazaki et al.
patent: 6763808 (2004-07-01), Ryuzaki et al.
patent: 7198033 (2007-04-01), Inaguma et al.
patent: 2002/0040704 (2002-04-01), Onishi et al.
patent: 2002/0129793 (2002-09-01), Tokuo et al.
patent: 2003/0056758 (2003-03-01), Onishi et al.
patent: 2006/0243253 (2006-11-01), Knight
Badarinarayan Harsha
Borg Jonathan
McCune Donald J.
Saikalis George
Shiraishi Takuya
Gifford Krass Sprinkle Anderson & Citkowski P.C.
Gimie Mahmoud
Hitachi Ltd
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