Thermal clearance control method for gas turbine engine

Details Thermal clearance control method for gas turbine engine Thermal clearance control method for gas turbine engine

1989-06-23

1991-12-31

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3975, 415117, F02K 304

Patent

active

050760505

ABSTRACT:
A method for enhancing the thermal response of the engine case and annular shroud during the transient response period following a step change in engine power provides for the temporary reduction or elimination of the flow of cooling air supplied to the engine case by the active clearance control system. An alternate method additionally substitutes a flow of relatively warm air to further increase the response of the case.

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patent: 4773212 (1988-09-01), Griffin et al.
patent: 4849895 (1989-07-01), Kervistin
patent: 4893983 (1990-01-01), McGreehan

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