Gear pump
US5253988A · kind A · utility
8Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1992 |
| Grant date | Oct 19, 1993 |
| Priority date | — |
| Expiry date | Feb 27, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C13/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Method and apparatus for on-site cleaning of a gear pump by coupling the gear pump outlet to the gear pump inlet and to the inlet end of the passage and which bypasses the bearing and is preferably controlled by a valve element which can block off the bypass in normal operation and be opened for a cleaning operation to increase the pressure on the side of the bearing connected to the inlet and thereby increase the velocity of the flushing stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.