Gerotor pump with variable tolerance housing
US6688866B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2001 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Nov 15, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/801
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gerotor pump is provided that includes a pump housing having a pump cover and a pump end plate. The pump cover defines an open end, an axial bore, and a bottom end. The pump end plate engages the open end of the pump cover thereby enclosing the axial bore of the pump cover and creating an inner cylindrical chamber in the pump housing. A wear plate and a gerotor gear set assembly are operatively disposed within the inner cylindrical chamber such that the gerotor gear set assembly is operatively disposed between the wear plate and the pump end plate. A biasing member is disposed between the bottom end of the pump cover and the wear plate, and is adapted to operatively bias the wear plate against the gerotor gear set assembly and the pump end to create an axial zero tolerance condition between the pump elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.