Brakes – Internal-resistance motion retarder – Electroviscous or electrorheological fluid
Reexamination Certificate
2007-05-01
2010-12-14
Williams, Melanie Torres (Department: 3657)
Brakes
Internal-resistance motion retarder
Electroviscous or electrorheological fluid
C188S269000
Reexamination Certificate
active
07849983
ABSTRACT:
The controllable suspension system includes a strut with a magnetorheological fluid damper. The magnetorheological fluid damper includes a longitudinal damper tubular housing having a longitudinally extending axis and an inner wall for containing magnetorheological fluid. The damper includes a piston head movable within the damper tubular housing along a longitudinal length the housing, with the damper piston head providing a first upper variable volume magnetorheological fluid chamber and a second lower variable volume magnetorheological fluid chamber, with a fluid flow gap between the upper and lower fluid chambers with a piston head fluid flow interface length HL, the damper piston having a longitudinal piston rod for supporting the piston head within the housing, with the piston supported within the housing with a piston rod bearing assembly disposed between the housing and the rod, with the piston rod bearing assembly having a piston rod bearing seal interface length BL, wherein contact between the piston head and the damper tubular housing inner wall is inhibited.
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Carlson J. David
Jolly Mark R.
Kintz K. Andrew
Marjoram Robert
McMahon William J.
Lord Corporation
Murphy Edward F.
Torres Williams Melanie
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