Variable displacement compressor passive destroker
US4872814A · kind A · utility
14Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1988 |
| Grant date | Oct 10, 1989 |
| Priority date | — |
| Expiry date | Jun 9, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2201/1201
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A passive destroker mechanism operated by centrifugal force is added to a variable stroke axial piston wobble plate refrigerant compressor. The destroker operates at a predetermined compressor speed to communicate the discharge side of the compressor with its sealed crankcase to thereby provide a controlled discharge gas bleed thereto to destroke the compressor to a desired displacement. Then after the speed is reduced below such trigger speed, the destroker mechanism operates to return the compressor to its normal stroke control condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.