Stage of vanes free at one extremity

Details Stage of vanes free at one extremity Stage of vanes free at one extremity

1994-02-24

1995-07-04

Look, Edward K.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Vane or deflector

F01D 102

Patent

active

054294797

ABSTRACT:
A stage of vanes, the vanes being embedded in a ring wherein the stage includes a ferrule concentric with the ring, an outer portion of the vanes having a free extremity which extends into a gas stream. A base portion of the vanes extends beyond the ring with respect to the gas stream and have a respective block located at an opposite end, the block rubbing against the ferrule. One of the block and a surface of the ferrule having a coating for reducing friction and a dampening material fills a space between the ring and a surface of the ferrule. Each block may include covering regions which rub against a neighboring block and the blocks may also have a friction surface formed with grooves. In addition, the stage may include a plurality of springs wherein the springs bias the block against the ferrule.

REFERENCES:
patent: 2772854 (1956-12-01), Anxiounaz
patent: 3104093 (1963-09-01), Craig et al.
patent: 3172641 (1965-03-01), John et al.
patent: 3326523 (1967-06-01), Bobo
patent: 3867066 (1975-02-01), Canova et al.
patent: 4836745 (1989-06-01), Hourmouziadis
patent: 5083900 (1992-01-01), Carletti et al.

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