Damping valve for shock absorber

Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber

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Details

18832214, 18832215, 188286, F16F 500

Patent

active

055224865

ABSTRACT:
A shock absorber comprising an outer tube; an inner tube positioned inside the outer tube; a rod guide closing one end of the inner tube and the outer tube; a compensation valve assembly closing the other end of the inner tube; the other end of the outer tube being closed; a piston assembly slidably sealably positioned inside the inner tube and dividing the inner tube into a rebound chamber and a compression chamber; a piston rod connected to the piston assembly and extending through the rebound chamber and the rod guide; a compensation chamber formed between the inner tube and the outer tube; and a damping valve covering an aperture through the inner tube from the compression chamber, the damping valve being actuable by differential pressure above a predetermined level to allow flow of fluid in one direction only from the compression chamber through the aperture to the compensation chamber. Improved damping characteristics at slow speed damping.

REFERENCES:
patent: 3194262 (1965-07-01), Hamilton
patent: 3892437 (1975-07-01), Makinen
patent: 3960251 (1976-06-01), Gorissen
patent: 4310077 (1982-01-01), Whiteside
patent: 4325468 (1982-04-01), Siorek
patent: 5360089 (1994-11-01), Nakamura

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