Scroll compressor with dual pocket axial compliance
US4993928A · kind A · utility
41Cited by
7References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 10, 1989 |
| Grant date | Feb 19, 1991 |
| Priority date | — |
| Expiry date | Oct 10, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C27/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Two annular pressure pockets are used to push the orbiting scroll against the fixed scroll to minimize leakage. One pocket is at intermediate pressure and the other is at discharge pressure. The pockets are defined by the orbiting scroll and an axial ring carried by the orbiting scroll which permits the use of radial seals thereby essentially eliminating wear on the seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.