Pneumatic or hydropneumatic tension spring

Details Pneumatic or hydropneumatic tension spring Pneumatic or hydropneumatic tension spring

1985-09-04

1987-03-03

Butler, Douglas C.

Spring devices

Vehicle

Comprising compressible fluid

188281, 188315, 18832213, 18832217, F16F 934, F16F 936

Patent

active

046470263

ABSTRACT:
In a pneumatic or hydropneumatic tension spring which consists of a container in which a cylinder is concentrically arranged and a liquid and/or gas filling under pressure has an inward force upon a piston rod, between a working chamber on the piston rod side and an annular chamber a damper device is arranged which generates a greater damping effect in the inward movement of the piston rod than in the outward movement of the piston rod. Due to this measure a damped inward movement of the piston rod is achieved while the extraction of the piston rod can be effected without appreciable damping.

REFERENCES:
patent: 3326546 (1967-06-01), Otto
patent: 4113071 (1978-09-01), Muller et al.
patent: 4156523 (1979-05-01), Bauer
patent: 4287970 (1981-09-01), Eusemann et al.

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