Connection between vane arm and unison ring in variable area sta

Details Connection between vane arm and unison ring in variable area sta Connection between vane arm and unison ring in variable area sta

1976-06-01

1977-09-27

Husar, C. J.

Rotary kinetic fluid motors or pumps

Including working fluid force responsive vane or flow control

Upstream of runner

415 9, 415160, 403225, 64 11R, F04D 2952

Patent

active

040508447

ABSTRACT:
In the connection between the unison ring and the actuating arms carried by the several vanes of a variable stator ring in an axial flow compressor and providing for turning the vanes as the unison ring is moved, the pivot that must permit angular misalignment, relative rotation and axial movement is an elliptical-shaped bushing mounted on either the ring or arm and engaging a cylindrical surface on the other of the ring or arm. The bushing is normally mounted on a pin and the cylindrical surface is provided by a sleeve, the elliptical element having slidable engagement with the sleeve. The bushing may be a metallic spring or may be made of an elastomer.

REFERENCES:
patent: 2061985 (1936-11-01), Sauers
patent: 2842305 (1958-07-01), Eckenfels et al.
patent: 3011605 (1961-12-01), Hungerford et al.
patent: 3303992 (1967-02-01), Johnson
patent: 3685920 (1932-08-01), Burge

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