Vibration damper with adjustable damping force

Details Vibration damper with adjustable damping force Vibration damper with adjustable damping force

2006-03-28

2006-03-28

Rodriguez, Pam (Department: 3683)

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

C188S322200

Reexamination Certificate

active

07017719

ABSTRACT:
A piston is guided with freedom of axial movement in a damping medium-filled pressure tube, the piston dividing the pressure tube into a working space on the piston rod side of the piston and a working space on the side away from the piston rod. The medium can flow in either direction through a fluid connection between the two working spaces of the pressure tube, in which connection an adjustable damping valve for the incoming flow is provided for when the piston rod is traveling inward. The outgoing flow side of the valve is connected at least to the working space on the piston rod side of the piston and a compensating space. The adjustable damping valve can be controlled by way of a sidestream inside the fluid connection between the working space on the side away from the piston rod and the working space on the piston rod side of the piston, the adjustable damping valve having a sidestream channel leading to the compensating space.

REFERENCES:
patent: 4743000 (1988-05-01), Karnopp
patent: 5699885 (1997-12-01), Forster
patent: 35 24 863 (1986-10-01), None
patent: 38 27 255 (1990-02-01), None
patent: 42 13 803 (1993-10-01), None
patent: 44 23 526 (1995-12-01), None
patent: 1 176 334 (2002-01-01), None

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