Brakes – Internal-resistance motion retarder – Resistance alters relative to direction of thrust member
Patent
1983-05-25
1985-05-07
Butler, Douglas C.
Brakes
Internal-resistance motion retarder
Resistance alters relative to direction of thrust member
1375121, 137810, 188315, 188317, 18832215, F16F 934
Patent
active
045152527
ABSTRACT:
A vortex flow hydraulic shock absorber for damping relative displacement of two components comprising a piston provided with a fluid passage therethrough including a pair of vortex chambers formed in a movable valve body disposed between a pair of resilient annular discs in a valve chamber in the piston. The valve body moves against the force of the resilient annular discs in response to an increase in the pressure difference of the working fluid on opposite sides of the piston to positions in which the fluid is permitted to bypass one or both of the vortex chambers as it traverses the piston, thereby varying the damping force of the shock absorber.
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Fukushima Naoto
Hidaka Kunihiko
Iwata Kazuro
Butler Douglas C.
Diefendorf R. R.
Nissan Motor Company Limited
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