Motor-driven scroll type compressor
US8202071B2 · kind B2 · utility
11Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2009 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Jul 25, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S418/01
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a motor-driven scroll type compressor, a rotary shaft includes a first opening at a position adjacent to a front end of the rotary shaft and facing an inner surface of a bearing for rotatably supporting the front end of the rotary shaft, a second opening at a position adjacent to a rear end of the rotary shaft and communicating with a back pressure chamber provided in front of a movable scroll member in a housing of the compressor, a communication passage interconnecting the first opening and the second opening, and a throttle formed by a clearance between the first opening and the inner surface of the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.