Compressor having capacity modulation system
US8313318B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2009 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Sep 13, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C23/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A compressor including a housing defining a suction pressure region and a discharge pressure region includes first and second scroll members forming compression pockets. A first chamber located on the first end plate of the first scroll member includes first and second passages and a first aperture extending therethrough and in communication with the first chamber. The first aperture provides communication between a compression pocket and the first chamber. A piston in the first chamber is axially displaceable to isolate the first passage from communication with the second passage when in first and second positions, prevent communication between the first aperture and the first passage when in the first position, and provide communication between the first aperture and the first passage when in the second position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.