Pump having flush system for seal arrangement
US5772396A · kind A · utility
13Cited by
4References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 15, 1996 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | May 15, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/128
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A centrifugal pump having a sealing flushing system. An annular flush ring insert having a plurality of radially spaced flush holes is provided adjacent the seal to be flushed so as to permit the seal to be flushed at a number of different places around the pump shaft and from a plurality of different radially spaced directions. The flushing fluid flows through a gland, into and through the flush ring insert, flushes (i.e. cleans and/or cools) the seal, and then flows on into the fluid being pumped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.