Magnetorheological fluid dampers

Details Magnetorheological fluid dampers Magnetorheological fluid dampers

1992-06-18

1994-01-11

Butler, Douglas C.

Brakes

Internal-resistance motion retarder

Magnetic fluid or material

188298, 188299, 188318, 188320, 18832214, 18832215, 18832222, 267 6415, 26714014, 267219, F16F 904

Patent

active

052772810

ABSTRACT:
Magnetorheological (MR) fluid dampers are optimized. Dimensional relationships involved in the flow of magnetic flux are related to an operational parametric ratio of magnetic flux density in the fluid to the flux density in the steel. A magnetic valve is utilized to change the flow parameters of the MR fluid and, hence, the operational characteristics of the damper. Several embodiments depicting improved piston designs, including spool as well as toroidal configurations, are disclosed. In addition, both single and twin-tube housing designs are presented.

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