Centrifugal pump
US8613605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2010 |
| Grant date | Dec 24, 2013 |
| Priority date | — |
| Expiry date | Jul 26, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/4273
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump includes a pump unit and a drive unit. The pump unit includes a volute and an impeller disposed in the volute. The drive unit includes a stator and a rotor having a shaft. The volute includes an inlet, an outlet and a chamber in communication with the inlet and outlet. The shaft of the rotor extends into the chamber of the volute and the impeller is attached to and driven by the shaft. The volute further includes a transition part connected between the outlet and the chamber and communicating the outlet with the chamber. The axis of the transition part is angled to the axis of the outlet. The transition part is configured to improve the effect of fluid turbulence to thereby reduce noise, especially in the air-water stage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.