Radial impeller for a centrifugal pump
US6139274A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 3, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Aug 3, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/2628
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A radial impeller for a centrifugal pump with at least one flow channel between an axial flow inlet zone and a substantially radial flow outlet zone, which flow channel is limited by the inside and outside surfaces of at least one rotor blade and by first and second annular channel surfaces which substantially extend transversally to the axis of the radial impeller, face one another and are integrally arranged with the radial impeller. In order to simplify the production of the radial impeller it is provided that the channel surfaces are provided with different diameters, with the smallest diameter of the first channel surface being slightly smaller than the largest diameter of the second channel surface and with preferably the first channel surface being arranged on the side of the inlet zone of the radial impeller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.