Rotary pump
US4772187A · kind A · utility
4Cited by
13References
4Claims
0Family size
Inventor
Key dates
| Filing date | Sep 8, 1986 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Sep 8, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A single rotary pump is provided with a driven valve having outer curved faces and inner curved recesses along the major axis thereof, a rotary piston having vanes between which there are semi-ellipses having raised portions therebetween, said valve being driven by an external source to cause rotation of said piston whereby liquid under pressure flows from an inlet of the pump to an outlet of the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.