Centrifugal pump with resiliently biasing diffuser
US5456577A · kind A · utility
8Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1994 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | Jul 28, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2251/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A multistage centrifugal pump having a last stage diffuser which acts as a compensator to load the suction and intermediate pressure gaskets during pump operation and pump stand-by. The last stage diffuser is designed as a spring which deflects under varying conditions and imparts a spring force on the channel rings during assembly, stand-by and other operating conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.