Preloaded spring mount for crank pin/rotor bearing assembly
US6126423A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1998 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Nov 13, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C18/0215
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.