Fuel supply system

Details Fuel supply system Fuel supply system

2007-03-13

2007-03-13

Argenbright, Tony M. (Department: 3747)

Internal-combustion engines

Charge forming device

With fuel pump

C123S510000, C137S572000

Reissue Patent

active

11024374

ABSTRACT:
The Fuel supply system reduces fuel quantity initially supplied and ineffective residual quantity of fuel. A throat in the shape of a passage is provided at a bottom portion of a sub-tank that supplies fuel from the fuel tank to the interior of the sub-tank by a jet pump. The throat has a suction port communicating with the exterior of the sub-tank and a supply port communicating with the interior of the sub-tank. The throat is inclined with respect to a bottom surface of the tank so that the height of the throat increases gradually from the suction port toward the supply port. The sub-tank has a check valve for opening and closing the supply port. This check valve prevents the fuel in the sub-tank from flowing out to the exterior of the sub-tank through the throat and becomes substantially vertical during valve closing.

REFERENCES:
patent: 4397333 (1983-08-01), Liba et al.
patent: 4842006 (1989-06-01), Scheuerenbrand et al.
patent: 5070849 (1991-12-01), Rich et al.
patent: 5769061 (1998-06-01), Nagata et al.
patent: 6273131 (2001-08-01), Kleppner
patent: 63-180322 (1988-11-01), None
patent: 2-173352 (1990-07-01), None
patent: 11-125163 (1999-05-01), None

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