Controlled shock absorber

Details Controlled shock absorber Controlled shock absorber

1979-01-26

1980-07-01

Love, John J.

Land vehicles

Wheeled

Running gear

B60G 2500

Patent

active

042103444

ABSTRACT:
A shock absorber itself is of the fluid piston-cylinder type and is provided in combination with a fluid reservoir containing a hydraulic compressible fluid under high pressure. A check valve is connected between the shock absorber cylinder and the reservoir for passing fluid from the cylinder to the reservoir when the pressure of fluid in the cylinder exceeds the high pressure of fluid in the reservoir. A pressure relief valve in turn connects the reservoir to the cylinder and is set to open a controlled amount to thereby control the pressure of fluid in the cylinder. The pressure of fluid in the cylinder determines the force exerted on the piston tending to move it out of the cylinder. Also, this pressure controls the viscosity of the fluid and thus the damping characteristics of the shock absorber. The setting of the pressure relief valve can be made automatically responsive to accerleration and deceleration as well as up and down movements of the vehicle so that the pressure on the piston in the shock absorber is effectively increased to accommodate sudden upward shocks of the wheel and effectively decreased when light loads occur on the wheel as in the case of the rear wheel of a motorcycle during deceleration.

REFERENCES:
patent: 3243537 (1966-03-01), Jezek, Jr.
patent: 3264008 (1966-08-01), Allinquant
patent: 3404899 (1968-10-01), Vogel
patent: 4145073 (1979-03-01), McLuckie et al.
patent: 4152000 (1977-05-01), Meisel, Jr.

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