Control apparatus for camshaft phaser
US11346259B2 · kind B2 · utility
0Cited by
4References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2019 |
| Grant date | May 31, 2022 |
| Priority date | — |
| Expiry date | Jun 27, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2820/031
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device for controlling a camshaft phaser includes a hydraulic element with a body, a slide assembly having a slide body, and a valve assembly with a first valve, a second valve, and a third valve. The device also includes an actuator which moves along a longitudinal axis between 1) a first position in which the first valve opens or closes a first fluid communication, 2) a second position in which the second valve and the tray open or close a second fluid communication, and 3) a third position in which the third valve and the slide body open or close a third fluid communication between a retard port and a retard chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.