Electromagnetic damper control device
US7537097B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 31, 2003 |
| Grant date | May 26, 2009 |
| Priority date | — |
| Expiry date | May 23, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2232/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electromagnetic damper control device including a first member containing a magnet, and a second member containing a solenoid combined to permit relative rotation. The relative rotation of the first and second members induces an electromagnetic force in a solenoid that serves as a damping force to a motion. The device further comprises a current limiter device operated by a voltage generated in the solenoid due to the relative rotation of the first member and second member. The current limiter devices regulates the electrical current flowing in the solenoid to a specific value based on the voltage generated in the solenoid so that by regulating the damping force of the electromagnetic damper a desired damping force can be applied to the electromagnetic damper without requiring external electrical power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.