Patent ID: 8443947

Claim:
A magneto-rheological fluid damper, comprising: a housing having an inner wall and an inner receiving chamber; a magnetically permeable body axially slidable within the inner receiving chamber and separable from the inner wall by a gap, the magnetically permeable body comprising an upper lid, a lower lid, an inner magnetic body, a non-magnetically permeable separating ring, an outer magnetic body, and a plurality of magnetically permeable rods, wherein the inner magnetic body, the non-magnetically permeable separating ring, and the outer magnetic body are arranged in a radial order and disposed between the upper lid and the lower lid, wherein the inner magnetic body and the non-magnetically permeable separating ring are spaced apart from each other by a spacing, the non-magnetically permeable separating ring adjoins the outer magnetic body, wherein the magnetically permeable rods are isometrically and radially arranged within the spacing, wherein each of the magnetically permeable rods has an end connected to the inner magnetic body and another end penetrating the non-magnetically permeable separating ring to connect with the outer magnetic body, wherein a coil is wound around each of the magnetically permeable rods; a spindle disposed at the upper lid and configured to protrude out of the housing and slide axially within the inner receiving chamber together with the magnetically permeable body; and a magneto-rheological fluid for filling the inner receiving chamber.