Gear pump
US9127672B2 · kind B2 · utility
0Cited by
3References
1Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 9, 2010 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Feb 9, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2251/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In a gear pump in which a driving rotor that is driven by a driving source meshes with a driven rotor that is driven by the driving rotor for rotation to pump a hydraulic oil, only one of the driving rotor and the driven rotor is given the steam treatment while the other remains untreated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.