Gas spring with end position damping

Details Gas spring with end position damping Gas spring with end position damping

1987-06-10

1989-01-10

Kashnikow, Andres

Spring devices

Vehicle

Comprising compressible fluid

188282, 188317, 267 34, 267 70, 267126, F16F 500, F16F 949

Patent

active

047968710

ABSTRACT:
A gas spring with end positions damping has a cylindrical housing filled with a fluid under pressure, in which a piston rod, sealingly extending from one end of the housing, is disposed to be coaxially slideable and on the inner end of which a piston is attached. To create an end position damping that is simple in structure, and which can be used purely pneumatic, purely hydraulic or hydropneumatic, an auxiliary piston in the form of a throttle piston is slidingly disposed on the piston rod, which is supported via an energy accumulator towards the end of the housing where the piston rod exits. The piston abuts against this auxiliary piston at the end of the extension movement of the piston rod. Its throttle effect is larger during movement in the direction toward the end where the piston rod exits than in the opposite direction.

REFERENCES:
patent: 4230309 (1980-10-01), Schnitzius

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