Gerotor pump having an inner gear, a rotor, and an outer gear, with inclined lubrication surface on teeth of face wall of rotor adjacent to pressure kidney and suction kidney
US10451056B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 2015 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Feb 16, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2203/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gerotor pump includes a rotor wherein only on the face wall of the rotor that lies adjacent to a pressure kidney and a suction kidney, a lubrication surface inclined in the direction of rotation of the rotor, relative to the surface plane of the face wall of the rotor, is disposed on each tooth, in each instance, over its tooth height, either starting directly in the center tooth plane or starting “offset” ahead of the center tooth plane in the direction of rotation of the rotor, which surface is formed from a level surface or multiple, always level partial surfaces that follow one another, which enclose an angle of inclination relative to the surface plane of the face wall of the rotor, in each instance, which angle lies in the range from 0.2° to 7°, in each instance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.