Aeronautics and astronautics – Aircraft power plants
Reexamination Certificate
1990-05-02
2008-08-19
Eldred, John W (Department: 3641)
Aeronautics and astronautics
Aircraft power plants
C060S241000, C060S243000, C060S260000
Reexamination Certificate
active
07413141
ABSTRACT:
A fuel control system for reheat burners of a gas turbine engine has a plurality of metering valves for respective burners, and throttle valves in series with the respective metering valves. A pressure regulating valve is provided for introducing pressurized fuel into fuel manifolds downstream of the respective throttle valves when the metering and throttle valves are shut. The pressure regulating valve also acts to relieve pressure in low pressure parts of the system when the latter is closed down and to prevent excessive temperature rise at the inlet of a fuel supply pump. The metering valves include pressure return ports which communicate with the metering valve outlets when those valves are shut.
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British Search Reports 9005906.
Eldred John W
Goodrich Control Systems Limited
Nixon & Vanderhye P.C.
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