Hydraulic damper

Details Hydraulic damper Hydraulic damper

1979-11-05

1982-02-02

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

188319, 251131, 251207, 251326, 280714, F16F 946

Patent

active

043135293

ABSTRACT:
A hydraulic damper is provided with a damping force adjusting mechanism. The damper includes a piston slidably positioned with a closed ended cylinder which functions to divide the interior of the cylinder into two chambers. Communication between the two chambers is provided by passageways partially defined by apertures and bores within the piston. Fluid flow between the two chambers via the passageways serves as the damping force. The damping force is made adjustable by a rotary valve positioned within one of the passageways which functions to vary the effective cross-sectional area of that passageway thus functioning as a damping force adjusting element. A device is provided to vary the damping force adjusting mechanism from the exterior of the hydraulic damper in accordance with a predetermined damping force.

REFERENCES:
patent: 1925086 (1933-09-01), Snyder
patent: 1962676 (1934-06-01), Albright
patent: 2453855 (1948-11-01), Oliver
patent: 3125186 (1964-03-01), Day
patent: 3307824 (1967-03-01), Weisheit
patent: 3559776 (1971-02-01), Schultze
patent: 3752189 (1973-08-01), Marr

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