Brakes – Internal-resistance motion retarder – Magnetic fluid or material
Patent
1994-12-09
1996-06-04
Graham, Matthew C.
Brakes
Internal-resistance motion retarder
Magnetic fluid or material
26714014, F16F 953
Patent
active
055224814
ABSTRACT:
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.
REFERENCES:
patent: 4351515 (1982-09-01), Yoshida
patent: 4819772 (1989-04-01), Rubel
patent: 4858733 (1989-08-01), Noguchi et al.
patent: 4896752 (1990-01-01), Shtarkman
patent: 5000299 (1991-03-01), Goto et al.
patent: 5014829 (1991-05-01), Hare, Sr.
patent: 5076403 (1991-12-01), Mitsui
patent: 5161653 (1992-11-01), Hare, Sr.
patent: 5170866 (1992-12-01), Ghaem
patent: 5180145 (1993-01-01), Watanabe et al.
patent: 5259487 (1993-11-01), Petek
patent: 5277281 (1994-01-01), Carlson et al.
Bridgestone/Firestone Inc.
Graham Matthew C.
Santa Maria Carmen S.
LandOfFree
Vibration damping device using ER fluids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vibration damping device using ER fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration damping device using ER fluids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-377964