Hydraulic shock absorber with variable damping resistance

Details Hydraulic shock absorber with variable damping resistance Hydraulic shock absorber with variable damping resistance

1998-09-23

2000-09-19

Schwartz, Christopher P.

Brakes

Internal-resistance motion retarder

Motion damped from condition detected outside of retarder

18832213, B60G 1708, F16F 950

Patent

active

061198293

ABSTRACT:
A hydraulic shock absorber includes disc valves seated on valve seats, and annular retainer discs having a diameter less than that of the valve seat. The retainer discs are guided by spacers and axially separable from the disc valves. Annular seal discs are disposed downstream of the disc valves. The inner periphery of the seal discs is partly overlapped with the outer periphery of the retainer discs. The outer peripheral edge of the retainer discs is in substantially linear contact with the disc valves. This arrangement restricts frictional resistance between the disc valves and the retainer discs when the disc valves are flexed and opened.

REFERENCES:
patent: 5649611 (1997-07-01), Nakadate
patent: 5655633 (1997-08-01), Nakadate et al.
patent: 5901820 (1999-05-01), Kashiwagi et al.
patent: 5934421 (1999-08-01), Nakadate et al.

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