Centrifugal pump
US5030062A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Apr 20, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/445
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump having a two member casing in which a first member with a circular peripheral inner wall incorporates a discharge branch and the other member is shaped in such a way as to determine the shape of the volute of the pump when the two members are brought together. The first casing member has a flange extending transversely from the peripheral wall. The second casing has a flat surface for abutment against the flange to seal the two members. The second casing member has a centrally raised section in which the radius of the section varies circumferentially so that the flow area of the volute of the pump varies circumferentially within the pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.