Regenerating pump with graphite and plastic casing and impeller
US5141396A · kind A · utility
11Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1991 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Jun 28, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/915
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A feed unit, in particular for the feed of fuel, has an electric drive motor with a pump unit coupled with it, the pump unit being built of two housing parts and a pump wheel arranged between them. The two housing parts and the pump wheel are each developed as a casting or compression molding from a mixture of graphite and plastic. The end surfaces of the pump wheel and of the two housing parts which contact each other are roughened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.