Rotary vane compressor
US4859162A · kind A · utility
17Cited by
11References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 29, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Aug 29, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C21/104
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary vane compressor or vacuum pump having an extended service life in which the rotor housing is composed of cast iron, the rotor of either cast iron or powder metallurgy materials, and the associated adjacent surfaces which form the rotor chamber are coated with a material having the characteristics of plastic with respect to friction and abrasion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.