Rotatable vane seal

Details Rotatable vane seal Rotatable vane seal

1975-06-02

1976-12-07

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415117, F01D 1716, F01D 1714

Patent

active

039959716

ABSTRACT:
Means for preventing the wasteful leakage of cooling air within the turbine section of a gas turbine engine is disclosed. A segmented shroud radially separates the flow path for the working medium gases from cooling air supply chambers which are disposed radially outward of the flow path. Rotatable vanes penetrate the shroud and extend into the medium flow path to control the flow of medium gases through the turbine. A ring, which is split, is urged against the vane and the adjacent shroud segments in operative response to a spring member to prevent the excess leakage of cooling air therebetween.

REFERENCES:
patent: 2651492 (1953-09-01), Feilden
patent: 2857214 (1958-10-01), Kogstrom
patent: 3224194 (1968-12-01), DeFeo
patent: 3329453 (1967-07-01), Patton
patent: 3558237 (1971-01-01), Wall
patent: 3565496 (1971-02-01), Latussek

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