Fuel check valve assembly for fuel tank

Details Fuel check valve assembly for fuel tank Fuel check valve assembly for fuel tank

1991-11-29

1992-12-22

Nilson, Robert G.

Fluid handling

Control by change of position or inertia of system

With second control

137 43, 137202, F16K 1736

Patent

active

051727145

ABSTRACT:
A fuel check valve assembly for an automotive vehicle fuel tank includes a valve casing having a valve seat and a float valve movably installed in the valve casing for controlling opening and closing of the valve seat. The float valve consists of a valve float and a valve head cooperative with each other to define therebetween a sealingly closed chamber. The valve head is subjected on opposite sides thereof to a pressure within the sealingly closed chamber and a pressure within the fuel tank, respectively and movable relative to the valve float in response to a pressure differential across the valve head. The valve head is forced to move relative to the valve float and away from the valve seat to open the same when the pressure differential across the valve head is larger than a predetermined value.

REFERENCES:
patent: 4000828 (1977-01-01), Crute
patent: 4655238 (1987-04-01), Szlaga
patent: 5004002 (1991-04-01), Kobayashi
patent: 5028244 (1991-07-01), Szlaga

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