Double tube vibration damper unit

Details Double tube vibration damper unit Double tube vibration damper unit

1993-09-09

1995-08-15

Oberleitner, Robert J.

Brakes

Internal-resistance motion retarder

Having a thrust member with a variable volume chamber

18832217, F16F 918, F16F 936

Patent

active

054411327

ABSTRACT:
A double tube vibration damper comprises a pressure tube and a container tube. Two working chambers are defined by the piston within the pressure tube. A compensation space is provided between the pressure tube and the container tube. The pressure tube extends axially between a bottom wall of the container tube and a piston rod guide secured to the container tube. A spring is in series with the pressure tube between the bottom wall and the piston rod guide. This spring compensates for different length variations of the pressure tube and the container tube. This spring is always under compressional stress throughout the operational range of temperature.

REFERENCES:
patent: 4185721 (1980-01-01), Karklins et al.
patent: 4614255 (1986-09-01), Morita et al.
patent: 4785921 (1988-11-01), Hosan et al.
patent: 4989701 (1991-02-01), Yamaoka et al.
patent: 5277284 (1994-01-01), Pradel et al.

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