Unloading of scroll compressors
US4575318A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Aug 16, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C27/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A positive displacement compressor or pump of the scroll type including first and second scroll plates (10, 12) having convoluted interfitting vanes (16). The flanks (18) of the vanes (16) on scroll plates (14) are interfitting and in sealing contact (20) with one another and the tips (22) of the vanes (16) in sealing contact with the other plate (14). One of the plates (14) has a generally central port and the assemblage is provided with a peripheral port (39) at the interface of the plates (14). A motor (35) and linkage (38) are provided to cause the plates to undergo orbital movement relative to each other and a selectively operable mechanism (40, 44, 46, 48; 62, 66, 76) is operable to separate the plates (14) to break sealing contact and thereby unload the compressor or pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.