Controllable magneto-rheological device for gas turbine engine
US11002335B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 8, 2016 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Sep 10, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F2224/045
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A controllable magneto-rheological device includes an annular cylinder formed by inner and outer walls connected at first and second opposing ends and forming an inner shaft configured to receive an operational component of an engine, generator or other device including one or more rotating structures. A magneto-rheological fluid is provided to fill a volume between the inner and outer walls of the annular cylinder. A plurality of electro-magnetic coils are positioned around the outer wall of the annular cylinder. One or more current controllers are coupled to the plurality of electro-magnetic coils for introducing a current through each of the electro-magnetic coils and corresponding magnetic flux through the magneto-rheological fluid. A level of current provided to each of the plurality of electro-magnetic coils directly affects the viscosity of the magneto-rheological fluid and thus the stiffness and damping levels of the controllable magneto-rheological device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.