Pump with cutting impeller
US7967553B2 · kind B2 · utility
10Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 11, 2005 |
| Grant date | Jun 28, 2011 |
| Priority date | — |
| Expiry date | Apr 19, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/181
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pump having an axial impeller (40) with helical blades (38) for sucking liquid through an intake opening (38) formed at a bottom side of the axial impeller (40), in which the blades (38) are provided, at the bottom side of the axial impeller (40), with a first cutting edge (58) which, when the axial impeller (40) rotates, are in cutting relation with at least one second cutting edge (60) formed at the intake opening (36).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.