Rotary compressor with valved liquid injection through the rotor
US4239467A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1978 |
| Grant date | Dec 16, 1980 |
| Priority date | — |
| Expiry date | Oct 12, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C29/0014
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a rotary compressor of the sliding vane type, the vanes maintain sliding contact with the inner wall of the housing while moving periodically inward and outward in generally radial slots in the cylindrical rotor, which is provided with conduits for injecting oil or other liquid into the working chambers formed by the rotor, the vanes and the housing's inner wall. The housing has inlet ports for a gas to be compressed in the working chambers and has outlet ports for the compressed gas. Valves are provided to open and close said rotor conduits in synchronism with said periodic moving of the vanes, whereby the liquid is injected into the working chambers only during such periods when these chambers are closed to the gas inlet and outlet ports.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.