Adjustable vane assembly for a gas turbine

Details Adjustable vane assembly for a gas turbine Adjustable vane assembly for a gas turbine

1976-06-17

1978-06-27

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415189, 415193, 415218, F01B 2510, F01D 1716, F01D 904

Patent

active

040971872

ABSTRACT:
This invention relates to a vane assembly for a split-shaft gas turbine engine. The invention relates to a vane assembly which is placed in the hot gas stream to control diffusion and to deflect the hot gas just prior to passage through the blades of the power wheel. The vane assembly is characterized by having each controlling and deflecting blade constructed in two cooperating parts, a forward portion of the vane which is hollow and stationary to control diffusion and a trailing portion which is allowed to pivot through a small angle to control deflection. The vane assembly is constructed in sections to have two complete vanes per section and the sections are fitted into circumferential slots in the casing of the turbine. The vane tip actuators are passed through the turbine casing and are fitted to the trailing portions of each vane so that the trailing portions of the entire assembly move as a unit by a single control mechanism.

REFERENCES:
patent: 2279258 (1942-04-01), Allen et al.
patent: 3945758 (1976-03-01), Lee
patent: 3990810 (1976-11-01), Amos et al.

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