Valve for a magnetorheological liquid
US8985288B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2010 |
| Grant date | Mar 24, 2015 |
| Priority date | — |
| Expiry date | Jul 2, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2082
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A valve for a magnetorheological fluid is formed with a duct through which the magnetorheological fluid can flow and which can be exposed to a variable magnetic field such that the flow resistance of the duct can be set using the magnetic field in the duct. The magnetic field can be lastingly generated using a magnet device that is made at least in part of magnetically hard material. The magnetization of the magnet device can be lastingly modified by a magnetic pulse of a magnetic field generation device in order to lastingly change the magnetic field in the duct and thus the flow resistance of the duct. A valve of the invention requires energy only to change settings while a specific setting can be lastingly maintained without supplying energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.