Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1997-12-15
2000-05-09
Walton, George L.
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
123509, 137399, 137433, 137574, 137590, 222 66, 222 67, 222376, F16K 3122, F16K 3300, F02M 3704
Patent
active
060589647
ABSTRACT:
A multi-level fuel pickup system has a float valve in communication with a first fuel passage having an open end disposed at a first height within the fuel tank spaced from the bottom of the fuel tank to prevent fluid flow through the first fuel passage when liquid fuel is absent adjacent its open end. A second fuel passage communicates adjacent the bottom of the fuel tank and below the first height and fuel is drawn through this fuel passage when a low level of fuel remains in the fuel tank. A fuel control valve is manually adjustable to control through which of the fuel passages fuel is drawn. Preferably, each of the fuel passages is at least partially formed in a valve body mounted within the fuel tank and the float valve comprises a spherical float received in a bore in the valve body and is responsive to the level of fuel within the bore.
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Cotton Kenneth J.
Roche Ronald H.
Walbro Corporation
Walton George L.
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