Variable displacement oil pump slide with bow spring
US11242852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2019 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Sep 14, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An automobile vehicle variable displacement pump includes a pump body having a pump shaft extending through the pump body. A rotor is connected to the pump shaft and co-rotates with the pump shaft. The rotor has multiple radially outwardly directed slots. A vane support ring supports multiple vanes, the vanes individually slidably received in one of the slots of the rotor. A slide is rotatably connected to the pump body having the rotor and the vane support ring positioned within an inner wall of the slide. A bow spring plate defining a biasing member directly contacts the slide to bias the slide to rotate about an arc of curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.