Power plants – Combustion products used as motive fluid – With safety device
Reexamination Certificate
2006-04-24
2010-06-01
Cuff, Michael (Department: 3741)
Power plants
Combustion products used as motive fluid
With safety device
C060S734000
Reexamination Certificate
active
07726112
ABSTRACT:
A method for purging fuel from a fuel system of a gas turbine engine on shutdown of the engine comprises, in one aspect, terminating a fuel supply to the fuel system and using the residual compressed air to create a reversed pressure differential in the fuel system relative to a forward pressure differential of the fuel system used to maintain fuel supply for engine operation, and under the reversed pressure differential substantially purging the fuel remaining in the system therefrom to a fuel source.
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Cuff Michael
Ogilvy Renault LLP
Pratt & Whitney Canada Corp.
Wongwian Phutthiwat
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