Adjustable vibration damper

Details Adjustable vibration damper Adjustable vibration damper

1992-07-17

1993-10-12

Halvosa, George E. A.

Brakes

Internal-resistance motion retarder

Controlled by an operator remote from retarder

188318, 18832213, 251359, F16F 946, F16F 934

Patent

active

052517306

ABSTRACT:
An adjustable vibration damper for motor vehicles has a cylinder containing a damping fluid, an axially-movable piston rod projecting into the cylinder in a sealed manner, and a damping piston fastened to the piston rod to divide the cylinder into two work chambers, whereby a damping valve equipped with an axially movable valve body and a valve seat controls the effective cross section of a damping passage. For this purpose, the valve body, starting from its pressurized end surface, has at least one constant throttle cross section running toward the back side of the valve body, and an additional throttle passage running in the outflow direction, whereby a pilot control element for regulating flow through the additional throttle passage is located in a recess inside the valve body.

REFERENCES:
patent: 1783884 (1930-12-01), Lee
patent: 2402950 (1946-07-01), Culver et al.
patent: 4291787 (1981-09-01), Brentham
patent: 4424953 (1984-01-01), Takagi et al.
patent: 4854429 (1989-08-01), Casey
patent: 4880086 (1989-11-01), Knecht et al.
patent: 4960188 (1990-10-01), Wossner
patent: 5011113 (1991-04-01), Stobbs et al.
patent: 5056556 (1991-10-01), Nishimoto et al.
patent: 5078240 (1992-01-01), Ackermann et al.

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