Rotary compressor with variable built-in volume ratio
US4362472A · kind A · utility
12Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1980 |
| Grant date | Dec 7, 1982 |
| Priority date | — |
| Expiry date | Jun 9, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C28/125
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary compressor has an outlet port with a variable area for discharging compressed medium from a working chamber to the outlet. The degree of opening of the outlet port is controlled by a regulator which senses the energy supplied to the compressor for compressing the medium and which from time to time changes the degree of opening of the outlet port until the need of drive energy for the compressor becomes minimal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.