Magnetorheological fluid device
AssigneeBoard of Regents of the University and Community College System of Nevada on behalf of the University of Nevada
InventorsGregory H. Hitchcock, Faramarz Gordaninejad
Life of this patent
Estimating the term…
Abstract
The disclosure describes a magnetorheological fluid control valve. The magnetorheological fluid control valve comprises an electromagnetic coil having a first end and a second end. A first arm is magnetically coupled to the first end of the electromagnetic coil. A second arm is magnetically coupled to the second end of the electromagnetic coil. The second arm has a passage. A ferromagnetic rod having a diameter less than that of the passage is disposed in the passage and magnetically coupled to the first and second arms. A first manifold is coupled to the second arm at one end of the passage. A second manifold is coupled between the second arm and the first arm at an end of the passage opposite the first manifold. A magnetorheological fluid is disposed in the passage.
Claims18
A magnetorheological fluid control valve comprising:
- an electromagnetic coil having a first end and a second end;
- a first arm magnetically coupled to the first end of said electromagnetic coil;
- a second arm magnetically coupled to the second end of said electromagnetic coil, said second arm having a passage;
- a ferromagnetic rod having a diameter less than that of said passage disposed in said passage and magnetically coupled to said first and second arms;
- a first manifold coupled to said second arm at one end of said passage;
- a second manifold coupled between said second arm and said first arm at an end of said passage opposite said first manifold;
- a magnetorheological fluid disposed in said passage.
A magnetorheological fluid control valve comprising:
- an electro-magnet wound on a ferromagnetic core;
- a first magnet-support member formed from a ferromagnetic material in contact with and fastened to a first end of said ferromagnetic core;
- a second magnet-support member formed from a ferromagnetic material in contact with and fastened to a second end of said ferromagnetic core, said second magnet-support member including a duct formed therethrough;
- a first manifold formed from a non-ferromagnetic material having a fluid coupling at a first end thereof, said first manifold having a second end communicating with a first end of said duct;
- a second manifold formed from a non-ferromagnetic material having a fluid coupling at a first end thereof, said second manifold having second end communicating with a second end of said duct;
- a rod formed from a ferromagnetic material and disposed within said duct, said rod supported at a first end by said first manifold, said rod extending through said second manifold and in contact with and supported at a second end by said first magnet-support member such that a magnetic gap is formed between said rod and an inner wall of said second magnet support member defining said duct;
- and
- said first manifold, said duct and said second manifold forming a fluid-tight passage for said magnetorheological fluid.
Dependencies are inferred from the claim text.