Power plants – Combustion products used as motive fluid
Patent
1979-08-31
1981-12-08
Garrett, Robert E.
Power plants
Combustion products used as motive fluid
60226R, 60 3929, 60 3975, 60 3909R, F02C 614, F02K 306
Patent
active
043040934
ABSTRACT:
Clearance control between an outer air seal of a gas turbine engine and an internal, turbine section of the engine is controlled by selectively modulating a cooling air supply that is directed to selected portions of the air seal supporting structure to control its thermal growth. Impingement of the cooling air causes contraction of the seal structure, thereby lessening the clearance for the purpose of improving engine performance. The flow of cooling air is modulated in response to engine speed and engine altitude to maintain relatively low clearance during critical periods of engine operation.
REFERENCES:
patent: 2845776 (1958-08-01), Traupel
patent: 3060680 (1962-10-01), Wilde et al.
patent: 3060686 (1962-10-01), Le May et al.
patent: 3108434 (1963-10-01), Morley et al.
patent: 3365172 (1968-01-01), McDonough
patent: 3659417 (1972-05-01), Grieb
patent: 4019320 (1977-04-01), Redinger et al.
patent: 4023919 (1977-05-01), Patterson
patent: 4069662 (1978-01-01), Redinger et al.
patent: 4101242 (1978-07-01), Coplin et al.
Garrett Robert E.
General Electric Company
Lawrence Derek P.
Silverman Carl L.
Walk Donald W.
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