Thrust balancing and cooling system

Details Thrust balancing and cooling system Thrust balancing and cooling system

1985-04-26

1987-03-31

Croyle, Carlton R.

Power plants

Combustion products used as motive fluid

60 3907, 60 3983, F02G 300

Patent

active

046532676

ABSTRACT:
Thrust balance in a gas turbine engine of the thrust balance seal is modulated by judiciously locating a seal between the inner diffuser case and the rear of the high compressor rotor shaft and bleeding air out of the cavity between both seals. The bled air is utilized to cool a portion of the high pressure turbine rotor. Cool air bled from mid-stage compressor is fed downstream of the second seal to cool the bearing compartment.

REFERENCES:
patent: 2951337 (1960-09-01), Atkinson et al.
patent: 3362160 (1968-01-01), Bourgeois
patent: 3382670 (1968-05-01), Venable
patent: 3433020 (1969-03-01), Earle, Jr. et al.
patent: 3452542 (1969-07-01), Saferstein et al.
patent: 3527054 (1970-09-01), Hemsworth
patent: 4099727 (1978-07-01), Weiler
patent: 4156342 (1979-05-01), Korta et al.
patent: 4217755 (1980-08-01), Williams
patent: 4296599 (1981-10-01), Adamson
patent: 4433539 (1984-02-01), Norris et al.
patent: 4466239 (1984-08-01), Napoli et al.

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