Apparatus for maintaining variable vane clearance

Details Apparatus for maintaining variable vane clearance Apparatus for maintaining variable vane clearance

1978-12-04

1981-07-14

Casaregola, Louis J.

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

F01D 1716

Patent

active

042783984

ABSTRACT:
Apparatus is provided for maintaining minimum clearance between variable position airfoils and the wall forming the gas flow path in a gas turbine engine. A constant clearance is maintained between a radially facing contoured wall surface and a radially facing contoured end face on the airfoil. The contour of the wall surface and the end face may each be spherical.

REFERENCES:
patent: 2606713 (1952-08-01), Bauger
patent: 3074689 (1963-01-01), Chapman
patent: 3392958 (1968-07-01), Penny et al.
patent: 4046434 (1977-09-01), Moreman
patent: 4046435 (1977-09-01), Moreman

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