Magnetorheological fluid damper
AssigneeGeneral Motors Corporation
InventorsAlan Browne, Nancy Johnson, Chandra Namuduri
Life of this patent
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Abstract
A magnetorheological damper device is provided having an increased shear interface area per unit volume of the device, which enhances the stroking force of the damper. The damper generally includes a cylindrically shaped housing; a magnetorheological fluid disposed in the cylindrically shaped housing; a piston assembly disposed within the cylindrically shaped housing in sliding engagement with the cylindrically shaped housing defining a first chamber and a second chamber, wherein the piston assembly comprises a plurality of cylindrically shaped fluid passageways extending from the first chamber to the second chamber, and an electromagnet; and a power supply in electrical communication with the electromagnet.
Claims14
A magnetorheological damper, the damper comprising:
- a cylindrically shaped housing;
- a magnetorheological fluid disposed in the cylindrically shaped housing;
- a piston assembly disposed within the cylindrically shaped housing in sliding engagement with the cylindrically shaped housing defining a first chamber and a second chamber, wherein the piston assembly comprises a plurality of cylindrically shaped fluid passageways extending from the first chamber to the second chamber, and at least one electromagnet;
- and
- a power supply in electrical communication with the at least one electromagnet.
A magnetorheological damper, the damper comprising:
- a cylindrically shaped housing;
- a magnetorheological fluid disposed in the cylindrically shaped housing;
- a piston assembly disposed within the cylindrically sed housing in sliding engagement with the cylindrically shaped housing defining a first chamber and a second chamber, wherein the piston assembly comprises an open cell porous media comprising a plurality of fluid passageways extending from the first chamber to the second chamber, and at least one electromagnet centrally disposed in the piston assembly;
- and
- a power supply in electrical communication with the at least one electromagnet.
Dependencies are inferred from the claim text.