Gear pump drive gear stationary bearing
US9488171B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Oct 29, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/54
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
One embodiment includes a gear pump with a drive gear, a gear shaft passing through the drive gear, and a stationary journal bearing. Also included is a fluid film, between a surface of the stationary journal bearing and a surface of the gear shaft, and a hybrid pad on the stationary journal bearing. The hybrid pad has a minimum leading edge angular location on the stationary journal bearing of 29.5° and a maximum trailing edge angular location on the stationary journal bearing of 42.5°. The gear pump also includes a porting path for supplying high pressure fluid from a discharge of the gear pump to the fluid film at the hybrid pad.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.