Patent ID: 6352143
Filing Date: 2002-03-05
Classification: F16F

Abstract:
A vibration damping system comprising:a hydraulic damper including a housing forming an internal hydraulic fluid chamber and a damping member slidably reciprocating within said chamber and dividing said chamber into a pair of subchambers, said damping member being adapted to be connected to a first support structure; connection means on the housing for connecting said housing to a second support structure spaced from said first support structure; a hydraulic motor in fluid communication with the hydraulic damper for controlling the movement of hydraulic fluid between the subchambers upon movement of the damping member within the fluid chamber, said hydraulic motor including at least one element for transforming fluid motion of the hydraulic fluid into a rotary motion; a fluid line providing the fluid communication between the hydraulic motor and the fluid subchambers, said motor being mounted in said fluid line whereby said hydraulic fluid flows through said motor; and a flow cell adapted to contain a field responsive fluid operatively connected to the hydraulic motor for controlling the amount of damping of the hydraulic damper by controlling the rotary motion of the hydraulic motor to regulate the amount of hydraulic fluid which passes through said hydraulic motor.