Vibration damping device using er fluids

Details Vibration damping device using er fluids Vibration damping device using er fluids

F - Mech Eng,Light,Heat,Weapons

16

F

F16F 9/00 (2006.01) F16F 9/18 (2006.01) F16F 9/53 (2006.01)

Patent

CA 2164808

A vibration damping device for mounting between two spaced portions of a vehicle for absorbing road forces exerted on the vehicle. An inner metal cylindrical housing forms an internal piston chamber and is connected at one end to one portion of the vehicle, with the outer end of the rod of a piston which is slidably mounted within the piston chamber, being connected to the other portion of the vehicle. An outer housing surrounds a portion of the inner housing and forms a fluid transfer duct between fluid chambers formed on opposite sides of the piston within the piston chamber. An electrode is mounted on an inner surface of the outer housing and is electrically isolated therefrom and communicates with the fluid transfer duct for applying a voltage across the duct to affect the viscosity of an electrorheological (ER) fluid flowing therethrough to increase the damping force of the device.

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