Motor vehicle oil pump
US12264672B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2021 |
| Grant date | Apr 1, 2025 |
| Priority date | — |
| Expiry date | Jan 4, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2240/52
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A motor vehicle oil pump, including: a pump body, an external rotor having a first plurality of lobes, an internal rotor having a second plurality of lobes configured to engage the first plurality of lobes of the external rotor, and a driving body rotatable with respect to the pump body about a first axis of rotation. The external rotor is constrained to the driving body. An idle shaft is rotatably connected to the pump body about a second axis of rotation parallel and eccentric to the first axis of rotation. The external rotor rotates about the first axis of rotation and is rotated by the driving body. The driving body is rotated by a motor. The internal rotor is fitted onto the idle shaft for rotating about the second axis of rotation and is rotated by the external rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.