Scroll compressor with means for end plate bias and cooled gas return to sealed compressor spaces
US4216661A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1978 |
| Grant date | Aug 12, 1980 |
| Priority date | — |
| Expiry date | Dec 8, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B31/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a gas pressure increasing system for increasing the pressure of a refrigerant gas or air having a scroll compressor, a condenser, a pressure reducing means and an evaporator or a scroll compressor and a gas cooler, an exhaust gas released from the scroll compressor after having its pressure increased by the scroll compressor itself is cooled and expanded to reduce its pressure to an intermediate pressure level to produce a gas of an intermediate pressure having a cooling capability. The gas of the intermediate pressure is used to provide a force for axially sealing an orbiting scroll member of the scroll compressor as well as to cool the scroll compressor and a motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.