Shim lock/pin anti-rotation bumper design

Details Shim lock/pin anti-rotation bumper design Shim lock/pin anti-rotation bumper design

2005-04-26

2005-04-26

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Selectively adjustable vane or working fluid control means

Upstream of runner

Reexamination Certificate

active

06884025

ABSTRACT:
The present invention relates to a bumper system for use with a compressor variable vane system. The bumper system broadly comprises a synchronizing ring, a bumper, a shim for defining a gap between a bumper pad and the bumper, a pin for preventing rotation of the bumper relative to the synchronizing ring, and a device for fully trapping the shim. In a first embodiment, the device for fully trapping the shim comprises a sleeve passing through the synchronizing ring. In a second embodiment, the device for fully trapping the shim comprises a pin which passes through the synchronizing body. In a third embodiment, the device for fully trapping the shim comprises a fastener with a shoulder.

REFERENCES:
patent: 2858104 (1958-10-01), Kelk et al.
patent: 4812106 (1989-03-01), Purgavie
patent: 4925364 (1990-05-01), Das
patent: 5855052 (1999-01-01), Becker et al.

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