Electronic oil pump
US8626422B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2013 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Mar 28, 2033 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01M2001/023
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An electronic oil pump has at least one lubricant inlet, at least one lubricant outlet, at least one piston being movable between a full stroke position and a fully retracted position, an electrical actuator operatively connected to the at least one piston, a first electrical lead connected to a first element of the pump for electrically connecting the first element to an electronic control unit (ECU), and a second electrical lead connected to a second element of the pump for electrically connecting the second element to the ECU. When the at least one piston is in the full stroke position, an electrical path between the first and second electrical leads is closed. When the at least one piston is in a position other than the full stroke position, the electrical path is opened. A method of controlling an engine having the oil pump is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.