Camshaft adjuster including a blocking pin for pressure relief of the hydraulic channel covered by a slotted gate
US10316706B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2015 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Jun 14, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2001/34453
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A camshaft adjuster for an internal combustion engine, having a stator, a rotor mounted rotatably in the interior of the stator, and a locking cover connected to the stator. A hydraulically actuatable locking element is received in the rotor and engages into the locking cover in at least one blocking position, so as to block a rotation of the rotor relative to the stator, and is arranged in at least one unlocking position so that the rotor can be rotated relative to the stator. A blocking pin acts in at least one hydraulic channel connected hydraulically to the locking element so that the hydraulic channel is connected to a recovery tank or is disconnected from the recovery tank depending on the position of the blocking pin, wherein the hydraulic channel has a first channel section in the locking cover, and the first channel section and the blocking pin are arranged so that the blocking pin seals the hydraulic channel from the recovery tank in at least one first end position, in a first pressure range which prevails in the hydraulic channel by way of contact with the locking cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.