Vane pump with bypass for leakage of fluid when bottom of vane is connected to undervane suction port
US4242068A · kind A · utility
8Cited by
4References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 1978 |
| Grant date | Dec 30, 1980 |
| Priority date | — |
| Expiry date | Dec 1, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C21/0863
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The instant invention provides an improved vane for a vane pump which incorporates an extended undervane suction port. The vane has a restricted passage which connects the inner and outer ends of the vane and an unrestricted passage which connects the outer end of the vane and the suction side of the vane when the leading edge of the vane is exposed to the pressure port and the inner end of the vane is connected to the suction port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.