Fuel control valve
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United States of America Patent
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Apr 20, 2004
Grant Date -
N/A
app pub date -
Aug 19, 1999
filing date -
Aug 19, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A low hysterisis fuel control valve for proportioning fuel being supplied to the combustor of the turbine engine into a first portion for delivery to primary fuel nozzles and a second portion for delivery to secondary fuel nozzles is provided. The valve includes a piston mounted within a linear ball bearing bushing. In response to fuel pressure, the piston is continuously operable between a first position where said no fuel flow to the fuel nozzles occurs, a second position where fuel flows to the primary nozzles and a third position where fuel flows to the secondary nozzles.
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