Apparatus for noise suppression in a gear pump
US4130383A · kind A · utility
14Cited by
3References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 23, 1977 |
| Grant date | Dec 19, 1978 |
| Priority date | — |
| Expiry date | Jun 23, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2/088
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure plate provides a trapped pressure relief groove oriented along the line of action of mating gears in a gear pump. The groove communicates the fluid trapped between the gear teeth with both the inlet and outlet, thereby reducing high squeezed pressures and lowering hydraulic noise levels. Noise suppression is apparent at all speeds, and is particularly apparent at high pump operating speeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.