Blade-type rotary compressor with full unloading and oil sealed interfaces
US4068981A · kind A · utility
11Cited by
7References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 13, 1976 |
| Grant date | Jan 17, 1978 |
| Priority date | — |
| Expiry date | Jul 13, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C29/0007
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary compressor apparatus having a housing with a rotor eccentrically mounted therein and such rotor includes a plurality of sliding vanes which define constantly changing compression pockets as the rotor is rotated. The apparatus includes a plurality of ports which may be opened to permit full unloading when starting the compressor and which may be selectively closed to control the quantity of gaseous matter being compressed. The apparatus also includes a high pressure oil injector at each end of the rotor for sealing such ends to prevent loss of compression.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.