Vane type compressor employing elliptical-circular profile
US4299097A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Jun 16, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C18/3441
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary compressor for use in air conditioning or the like including a housing having a chamber with a cylindrical rotor journaled therein, the rotor having a set of vanes radially slidable to define enclosed compartments between them. The curved outer wall of chamber has a reference region separating the chamber into inlet and outlet sides having inlet and outlet ports in straddling relation. The rotor has its axis laterally offset from the chamber axis to produce sealing at the reference region. The curved wall of the chamber on the inlet side is of substantially elliptical profile with the major axis of the ellipse generally centered on the inlet side and with the inlet port extending to a point of cut-off short of the major axis. The curved wall on the outlet side is smoothly continuous and substantially circular in profile. In operation, gas entering the inlet port is charged in a compartment between a pair of vanes at the major elliptical axis and progressively compressed over an arc of compression greater than about 180 degrees for discharge from the outlet port in the compressed state. The outlet port is provided with a circular liner the trailing end of which defines the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.