Magnetic viscous damper

Details Magnetic viscous damper Magnetic viscous damper

1978-06-19

1980-04-29

Scott, Samuel

Machine element or mechanism

Elements

Flywheel, motion smoothing-type

192 215, 74573F, F16F 1510, F16F 1522

Patent

active

042000033

ABSTRACT:
Disclosed herein is a rotary viscous damper using a magnetic fluid as the damping medium. The damper comprises a permanent magnet rotor enclosed in a magnetically permeable housing. The magnetic fluid fills the space between the rotor and the housing and is held in place using magnetic forces generated by the magnet rotor. The torque of damper may be varied by changing the viscosity of the magnetic fluid or the level of the magnetic flux in the magnetic circuit.

REFERENCES:
patent: 1636262 (1927-07-01), Troendly
patent: 2635483 (1953-04-01), Welsh
patent: 2650684 (1953-09-01), English, Jr. et al.
patent: 2845157 (1958-07-01), Gambell
patent: 2886150 (1959-05-01), Seavey
patent: 2945138 (1960-07-01), Strang
patent: 3906266 (1975-09-01), Cowman
patent: 4049985 (1977-09-01), Sudler

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