Load leveling shock absorber

Spring devices – Vehicle – Comprising compressible fluid

Patent

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Details

267 6418, 267 6419, F16F 9342

Patent

active

048772232

ABSTRACT:
A hydraulic shock absorber unit provides automatic maintenance of a predetermined spacing between a sprung load and an unsprung portion where the mass of the sprung load is subject to change. The shock absorber unit includes a liquid filled cylinder in a cylinder body with a piston disposed in the cylinder for dividing the cylinder into a variable volume compression chamber and a variable volume rebound chamber. The piston is axially reciprocable within the cylinder and operates as a pump for a self-leveling fluid circuit. The shock absorber is connected between the sprung load and the unsprung load such that piston has a fixed spacing relative to a point on one of the loads, typically the sprung load. The cylinder has a fixed spacing relative to a point on the unsprung load. A lift chamber is axially disposed between the cylinder body and the sprung load for returning the shock absorber to a predetermined extension during transient loading conditions. A fluid circuit delivers fluid to the lift chamber during compression strokes of the piston for varying pressure in the lift chamber as a function of the mass of the sprung load. A bleed valve drains fluid from the lift bladder when the shock absorber extension exceeds the predetermined spacing. A fluid circuit recirculates fluid from the lift chamber to the compression and rebound chambers as required for normal damping of transient oscillations of the sprung load.

REFERENCES:
patent: 2048285 (1936-07-01), Padgett
patent: 2719611 (1955-10-01), De Previnquieres
patent: 3151856 (1964-10-01), Bresk et al.
patent: 3178167 (1965-04-01), Loewis
patent: 3226103 (1965-12-01), McNenny
patent: 3525512 (1970-08-01), Hagwood
patent: 3527451 (1970-09-01), Long
patent: 3563565 (1971-02-01), Perlini
patent: 3593977 (1971-07-01), Hahn
patent: 3752270 (1973-08-01), Valdespino
patent: 3874485 (1975-04-01), Smith
patent: 3891199 (1975-06-01), Willich et al.
patent: 3904183 (1975-09-01), Allinquant et al.
patent: 4154434 (1979-05-01), Wallis
patent: 4405119 (1983-09-01), Masclet et al.
patent: 4445673 (1984-05-01), Clark

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