Rotation damper with a magnetorheological fluid and damping method
US11725709B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2017 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Jul 24, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2232/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotation damper has a housing, a magnetic field source and a damper shaft designed as a hollow shaft, and a coupling rod arranged inside the damper shaft. The hollow shaft and the coupling rod form interacting transmission units and convert a relative axial movement of the coupling rod into a rotational movement of the hollow shaft. A displacer unit is arranged in the housing. The displacer unit includes the damper shaft and meshing displacer components that are rotatable in relation to each other. The displacer unit contains a magnetorheological fluid as the working fluid and can be operated thereby. The magnetic field source is configured for applying a magnetic field to the displacer components in order to dampen a rotational movement of the damper shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.