Camshaft adjuster
US11131220B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2016 |
| Grant date | Sep 28, 2021 |
| Priority date | — |
| Expiry date | Jul 3, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L2250/06
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A camshaft adjuster (1) is provided, including a drive element (2) and a driven element (3), which can be rotated in relation to the drive element within an angular range and can be connected to a camshaft, wherein pressurizable working chambers (4) for rotating the drive element (2) with respect to the driven element (3) are formed between the drive element (2) and the driven element (3), wherein the camshaft adjuster (1) has a volume accumulator (5) for collecting hydraulic medium, wherein the volume accumulator (5) supplies the hydraulic medium to a vacuum-pressurized working chamber (4) via a check valve (6) in that the vacuum in the working chamber (4) opens the check valve (6), characterized in that the check valve (6) is arranged in an axial position between the working chamber (4) and the volume accumulator (5), and the volume accumulator (5) is formed by a cover element (7) connected to the drive element (2) for conjoint rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.