Check valve assembly
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United States of America Patent
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-
Mar 13, 1990
Grant Date -
N/A
app pub date -
Aug 15, 1988
filing date -
Aug 15, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A check valve for use in a vehicle engine fuel system comprising a fuel storage tank, a fuel feed line for delivering fuel from the tank to the engine, and a fuel return line for returning unused fuel from the engine to the tank. The valve is mounted on the return line in the fuel tank to be operable by a combination of flow-induced pressure reduction and fuel ram pressure to prevent reverse flow of the fuel through the return line in the event of reverse flow conditions.
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