Pump impeller and chopper plate for a centrifugal pump
US7455251B2 · kind B2 · utility
12Cited by
22References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2006 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Oct 11, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D7/045
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump of the chopper type is disclosed which is structured with a chopper plate and impeller that are configured with an open eye or “hubless” arrangement such that processing of solids through the pump does not result in clogging of solids at or near the center of the impeller, thereby producing a dead zone. Because the configuration of the chopper pump of the present invention avoids the development of a central dead zone or clogging of solids, and provides for flow of solids and fluid through the eye of the impeller, pump efficiencies are markedly improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.