Fluid handling – Systems – System with plural openings – one a gas vent or access opening
Patent
1992-10-23
1993-11-09
Hepperle, Stephen M.
Fluid handling
Systems
System with plural openings, one a gas vent or access opening
123516, 123519, 137510, F02M 3704
Patent
active
052594122
ABSTRACT:
A fuel supply system for supplying fuel from a fuel source to an internal combustion engine includes a valve assembly having a shut-off valve automatically responsive to negative pressures transmitted from engine aspiration or a fuel pump. The shutoff valve is diaphragm responsive and moves in the same direction as the flow of fuel in order close the valve assembly, thereby retaining the content of a fuel receptacle infinitely. The shutoff valve is adapted to withstand pressures which may develop in a fuel receptacle without opening. In one embodiment, the fuel supply system includes a vapor line for directing fuel vapor from the fuel receptacle to a portion of the engine, where it can be combusted. The vapor line is operatively associated with a fuel cap. The fuel cap can be selectively rotated positioned so as to permit fuel vapor to enter the vapor line.
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Baumbarger Gary L.
Scott William A.
Hepperle Stephen M.
Tillotson Ltd.
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