Rotor profile for a Roots vacuum pump
US5152684A · kind A · utility
23Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 27, 1991 |
| Grant date | Oct 6, 1992 |
| Priority date | — |
| Expiry date | Aug 27, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C18/126
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A dual rotor Roots type vacuum pump has an improved rotor profile contour resulting in high area efficiency, high volumetric efficiency, reduced backstreaming and simplified economical manufacturing which yields a compact, cost effective pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.