Reversible gerotor pump
US8734140B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2011 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | May 28, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N13/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A reversible gerotor pump for a machine having a drive shaft is provided, the pump including a housing, an offset ring, and an inner and outer gear. The offset ring is disposed in the housing and includes a tab extending radially from an outer periphery. The outer periphery of the offset ring defines a first axis in common with the axis of a drive shaft. The inner periphery of the offset ring defines a second axis that is slightly offset from the second axis. The axis of the outer gear moves relative to the axis of the inner gear to allow pumping action in both rotational directions using the same suction and line cavities for both directions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.