Centrifugal pump
US7293958B2 · kind B2 · utility
14Cited by
4References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 4, 2005 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Jan 19, 2026 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/586
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump (1) is proposed, in particular for household appliances, such as washing machines or dishwashers, which comprises a pump housing (2) having an axial inlet (11), an outlet (12) and a heating element, wherein the pump housing (2) incorporates a rotatably mounted impeller (4) and a flow channel (15) enveloping the impeller (4) and heating element. The centrifugal pump (1) according to the invention is intended to have improved efficiency. This is achieved by having the flow cross-section of the flow channel (15) increase along the periphery toward the outlet (12).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.