Apparatus for controlling the concentricity of a member with a c

Details Apparatus for controlling the concentricity of a member with a c Apparatus for controlling the concentricity of a member with a c

1997-08-06

2000-10-31

Echols, P. W.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415131, 277370, 277398, 2988802, F16J 1534

Patent

active

061392561

ABSTRACT:
Conventional gas compressors use dry gas sealing arrangements mounted on a shaft of the gas compressor. Functionally, for the dry gas sealing arrangement to properly seal, the concentricity of shaft and the dry gas sealing arrangement must be maintained at a close tolerance. Past assembly techniques have failed to mount such dry gas sealing arrangement to the shaft in an effective and efficient manner to control the concentricity during operation. The present method and apparatus for controlling the concentricity of a member with a centering device effectively and efficiently controls the concentricity between the member and the shaft. The structure of the centering device includes a first cylindrical portion, a second cylindrical portion and a transition portion. The first cylindrical portion is cantilevered about the shaft and centers a first end of the member. The second cylindrical portion and the transition portion form a mid-support for a second end of said member. Each of the mid-support and the cantilevered structure provide a uniform concentrically mounted member.

REFERENCES:
patent: 2203525 (1940-06-01), Dupree, Jr.
patent: 2830541 (1958-04-01), Higgins et al.
patent: 3472169 (1969-10-01), Dyke et al.
patent: 3485051 (1969-12-01), Watkins
patent: 3847504 (1974-11-01), Martin
patent: 3881841 (1975-05-01), Stranitl

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