Variable camshaft timing mechanism with a lock pin engaged by oil pressure
US10767518B2 · kind B2 · utility
0Cited by
46References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | May 22, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D13/02
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hydraulically operated camshaft phasing mechanism has two lock pins. One of the lock pins engages at an intermediate position and an end lock pin engages near one of the stops at the end of the phaser range of authority. At least one of the locking pins, preferably the end lock pin, when the vane is at an end stop position, is engaged by oil pressure and spring loaded to release when the oil pressure side of the end lock pin is vented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.