Vane tip motion transfer device

Details Vane tip motion transfer device Vane tip motion transfer device

1977-05-16

1979-02-13

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

415191, 415217, 74 96, F01D 1716, F01D 104, F01D 904

Patent

active

041393295

ABSTRACT:
This invention relates to a device which is capable of accurately transferring a rotating movement from a master control to a pivotal vane tip in a gas turbine engine. A series of stationary vanes which are housed inside the casing of a gas turbine are each provided with a trailing rotatable vane tip. The device to which this application is directed is mounted on the casing of the gas turbine in a sealed manner and is connected to the rotatable vane tip. The vane tip is continuously biased in a radially outward direction by the motion transfer device to assure the best possible seal of the vane tip in the turbine. Provision is made to allow the vane tip to have some radial flexibility to prevent binding of the vane tip under thermal cycling stresses.

REFERENCES:
patent: 3538579 (1970-11-01), Sprenger
patent: 3788763 (1974-01-01), Nickles
patent: 3999883 (1976-12-01), Nordenson

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