Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate
2007-03-23
2008-08-05
Moulis, Thomas N (Department: 3747)
Internal-combustion engines
Charge forming device
With fuel pump
C123S446000, C123S525000, C123S458000
Reexamination Certificate
active
07406950
ABSTRACT:
The invention can avoid an energy dissipation and a consumption of an apparatus by minimizing a driving amount of a fuel pump and maintain an improved fuel supply state, in a fuel supply system injecting a liquefied gas fuel by an injector and supplying to an engine. In a return-less type engine fuel supply apparatus provided with a fuel supply pipe line (9) extended from a fuel tank (2) and having an injector (8) in a leading end side, a motor-driven fuel pump (3), and an electronic control unit (12) drive controlling the fuel pump (3) and the injector (8), a pressure sensor (13) detecting a fuel pressure so as to output to the electronic control unit (12) is arranged at a position near the injector (8) in the fuel supply pipe line (9) where a fuel pressure approximately coincides with a fuel injection pressure, the electronic control unit feedback controls the operation of the fuel pump (3) on the basis of the detected fuel pressure in such a manner that the fuel injection pressure maintains a predetermined target pressure, and the fuel pump (3) is arranged outside an engine room (50).
REFERENCES:
patent: 4926829 (1990-05-01), Tuckey
patent: 5033444 (1991-07-01), Kaufman et al.
patent: 5044344 (1991-09-01), Tuckey et al.
patent: 5085193 (1992-02-01), Morikawa
patent: 5237975 (1993-08-01), Betki et al.
patent: 5284119 (1994-02-01), Smitley
patent: 5377645 (1995-01-01), Moore
patent: 5398655 (1995-03-01), Tuckey
patent: 5479906 (1996-01-01), Collie
patent: 5623907 (1997-04-01), Cotton et al.
patent: 5755211 (1998-05-01), Koch
patent: 5775281 (1998-07-01), Smith
patent: 5857448 (1999-01-01), Ofner et al.
patent: 5967126 (1999-10-01), Ofner
patent: 6314947 (2001-11-01), Roche
patent: 6446616 (2002-09-01), Kabat et al.
patent: 6591817 (2003-07-01), Deutsch
patent: 6698401 (2004-03-01), Suzuki et al.
Iwasaki Masashi
Sawut Umerujan
Yamaguchi Shin'ya
Moulis Thomas N
Nikki Co. , Ltd.
Rader & Fishman & Grauer, PLLC
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