Integrated endshield and pump volute for an electric pump and method of forming an electric pump
US8585378B2 · kind B2 · utility
2Cited by
21References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2009 |
| Grant date | Nov 19, 2013 |
| Priority date | — |
| Expiry date | Jun 8, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49009
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric pump has a stator, a rotor, a pump volute, and an endshield. The pump volute and the endshield are formed together as a single monolithic part, thereby minimizing the axial length of the electric pump. A drainage passageway is provided on the endshield to harmlessly drain away any fluid that seeps past the pump's seals. In one embodiment of the invention, the drainage passageway is a groove that faces the stator and is configured to facilitate the evaporation of and leak fluid by channeling the fluid near the stator, which warms the fluid and thereby increases the fluid's evaporation rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.