Vibration damper, in particular for motor vehicles

Details Vibration damper, in particular for motor vehicles Vibration damper, in particular for motor vehicles

1995-09-14

1997-05-27

Butler, Douglas C.

Brakes

Internal-resistance motion retarder

Magnetic fluid or material

18832222, 18832215, 26714014, F16F 600, F16F 914, F16F 953, B60G 1300

Patent

active

056323611

ABSTRACT:
Vibration damper, in particular for motor vehicles, including a work cylinder, a work piston fastened to a piston rod and dividing the work cylinder into two work chambers, possibly an equalization chamber and a piston rod guide which seals the piston rod against the atmosphere, whereby the work chambers are filled with a magnetorheological fluid to which an electric coil can be applied. In the event of a failure or malfunction of the electric coil, it must be possible to achieve a safe damping force, by having at least one permanent magnetic field which acts on the magnetorheological fluid.

REFERENCES:
patent: 4679775 (1987-07-01), Funaki et al.
patent: 5018606 (1991-05-01), Carlson
patent: 5170866 (1992-12-01), Ghaem
patent: 5277281 (1994-01-01), Carlson et al.
patent: 5284330 (1994-02-01), Carlson

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