Impeller for centrifugal pump
US7549837B2 · kind B2 · utility
11Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | Jun 23, 2009 |
| Priority date | — |
| Expiry date | Jul 3, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/669
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump includes a rotatable shaft; and at lest one impeller attached to the rotatable shaft, wherein the at least one impeller includes a top plate, and a bottom plate, and a plurality of vanes enclosed between the top plate and the bottom plate, wherein at least one of the plurality of vanes has a trailing end that comprises a first surface that adjoins the top plate substantially at an outer edge of the top plate and a second surface that is substantially flush with an axially outward surface of the bottom plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.