Preloaded spring mount for crank pin/rotor bearing assembly

Details Preloaded spring mount for crank pin/rotor bearing assembly Preloaded spring mount for crank pin/rotor bearing assembly

1998-11-13

2000-10-03

Trieu, Theresa

Rotary expansible chamber devices

Working member has planetary or planetating movement

Adjustable or resiliently biased working member

418 552, 418109, 418 1, F01C 102

Patent

active

061264237

ABSTRACT:
Rotary fluid compressor comprises a stator housing and a crankshaft rotatable about an axis of rotation and having a crank pin offset relative to the axis of rotation. A rotor is disposed by a bearing assembly on the crank pin for orbiting motion about the axis of rotation in the stator housing. An annular spring is assembled between the bearing assembly and either the rotor or the crank pin with the spring radially compressed to an extent to provide a controlled spring preload that, in combination with a controlled spring rate, maintains radial sealing force between the rotor and the stator housing between preselected minimum and maximum design values.

REFERENCES:
patent: 3173406 (1965-03-01), Campos
patent: 3767333 (1973-10-01), Ashilian
patent: 4371323 (1983-02-01), Fischer et al.
patent: 5545019 (1996-08-01), Beck et al.
patent: 5582513 (1996-12-01), Shigeoka et al.
patent: 5681155 (1997-10-01), Hisanaga et al.
patent: 5755564 (1998-05-01), Machida et al.

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