Hydraulic damper

Details Hydraulic damper Hydraulic damper

1982-04-20

1984-11-27

Stoner, Jr., Bruce H.

Brakes

Internal-resistance motion retarder

Resistance alters relative to direction of thrust member

188317, 18832215, 1375133, F16F 948

Patent

active

044846690

ABSTRACT:
A hydraulic damper includes a cylinder, a piston working in the cylinder and partitioning the interior thereof into two liquid chambers, two valve discs provided respectively on opposite end surfaces of the piston, two sets of passages opening respectively in opposite end surfaces of the piston to cooperate with respective valve discs, and an orifice communicating permanently the two liquid chambers. A restricting member is provided to change the effective area of the orifice in response to the direction of the liquid flow passing through the orifice.

REFERENCES:
patent: 2346275 (1944-04-01), Read et al.
patent: 2670814 (1954-03-01), Ball
patent: 4203507 (1980-05-01), Tomita et al.

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