Power plants – Combustion products used as motive fluid – With safety device
Reexamination Certificate
2008-07-22
2008-07-22
Casaregola, L. J. (Department: 3746)
Power plants
Combustion products used as motive fluid
With safety device
C060S734000, C060S786000
Reexamination Certificate
active
11139953
ABSTRACT:
A fuel system (10) for a gas turbine engine (18) having a shaft (30) and requiring fuel to be supplied at a first rate for engine start up, the fuel system (10) including: a main fuel pump (14) for providing fuel to the gas turbine engine (18), the main fuel pump (14) having an output varying with shaft speed, the output being at a windmilling rate when the engine (18) is windmilling, the windmilling rate being less than the first rate; and an auxiliary fuel pump (40) for providing fuel to the gas turbine engine (18) and having an auxiliary output rate greater than or equal to the difference between the first rate and the windmilling rate. A method of operating such a fuel system (10) is also disclosed.
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Eick Christopher D.
Jones David D.
Lorenz William
Mahoney Timothy D.
Casaregola L. J.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz P.C.
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