Gas turbine engine catalytic and primary combustor arrangement h

Details Gas turbine engine catalytic and primary combustor arrangement h Gas turbine engine catalytic and primary combustor arrangement h

1994-01-14

1995-09-26

Thorpe, Timothy S.

Power plants

Combustion products used as motive fluid

With variable oxidizer control

60723, 60746, F02C 7228, F23R 326, F23R 340

Patent

active

054525748

ABSTRACT:
In the operation of gas turbine engines, it is an ever increasing goal to reduce the amount of harmful elements contained within the emissions of the engine. In particular, it is of primary importance to reduce the amounts of nitrogen oxides contained within the emissions. The use of a catalytic combustor is one known means by which the formation of nitrogen oxides may be controlled. However, the use of a catalytic combustor in a gas turbine engine has been known to be effective primarily in the upper ranges of engine operation. The present invention provides a combustor arrangement for a gas turbine engine that employs a first combustor means that utilizes a catalytic bed to react a mixture of fuel and air during an upper range of engine operation and a second combustor means that utilizes a plurality of premixed fuel injectors to ignite a mixture of fuel and air during a lower range of engine operation.

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