Compressor bleed system for cooling and clearance control

Details Compressor bleed system for cooling and clearance control Compressor bleed system for cooling and clearance control

1979-11-14

1982-06-01

Garrett, Robert E.

Power plants

Combustion products used as motive fluid

Combustion products generator

415115, 415116, 415173R, F02C 306, F02C 718, F02C 728

Patent

active

043321330

ABSTRACT:
To improve on thrust specific fuel consumption for a gas turbine engine, compressor bleed for turbine cooling is divided into an air distribution system where at least one duct is valved and the other is continuously flowing restrictively with the excess air passing through the turbine mixing with gas path air in the vicinity of the rotating turbine labyrinth type seal to assure seal cooling with sufficient heating of the rotating parts to achieve minimum gap clearance of the seal.

REFERENCES:
patent: 3584458 (1971-06-01), Wetzler
patent: 3733146 (1973-05-01), Smith et al.
patent: 3972181 (1976-08-01), Swayne
patent: 4069662 (1978-01-01), Redinger et al.
patent: 4187054 (1980-02-01), Landis et al.
patent: 4213738 (1980-07-01), Williams
patent: 4217755 (1980-08-01), Williams

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