Internal gear pump
US10683863B2 · kind B2 · utility
0Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2017 |
| Grant date | Jun 16, 2020 |
| Priority date | — |
| Expiry date | May 15, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/98
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal gear pump includes a pinion, a ring arranged around the pinion, and a cylindrical wall arranged around the ring. A support element, on which the pinion and the ring are supported, carries high-pressure liquid towards a recess located at the junction between the ring and the cylindrical wall, and also carries low-pressure liquid towards another recess located at another point of the junction between the ring and the cylindrical wall. The recess allows the load of the ring on the cylindrical wall to be reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.