| 摘要 |
A damper apparatus includes a housing having a toroidal inner housing surface and a slidably linked piston moveable in the housing having a curved outer peripheral piston surface in engagement with the inner housing surface. A fluid barrier is attached to the housing and located in the housing interior. A flow control passageway and electro-magnetic field control valve defined by either the piston or the damper shaft/arm assembly controls viscosity and passage of magnetic-rheological damper fluid when there is relative rotational movement between the piston and the housing to dampen the forces causing relative rotational movement.
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