Turbine case cooling

Details Turbine case cooling Turbine case cooling

2005-08-09

2009-11-24

Edgar, Richard (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S173200, C701S100000

Reexamination Certificate

active

07621716

ABSTRACT:
A method of controlling turbine case cooling in a gas turbine engine, the method including monitoring the present state of the engine32and using a predictive model based system44, 46to predict the future thermal expansion of the turbine case12and turbine blades28, and controlling cooling of the turbine case12in response to said prediction to provide a required gap30over time.

REFERENCES:
patent: 4849895 (1989-07-01), Kervistin
patent: 4999991 (1991-03-01), Haddad et al.
patent: 5012420 (1991-04-01), Walker et al.
patent: 2001/0001845 (2001-05-01), Khalid et al.
patent: 2005/0149274 (2005-07-01), Finnigan et al.

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