Arrangement for a gas spring

F - Mech Eng,Light,Heat,Weapons – 16 – F

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Details

153/38, 267/78

F16F 9/06 (2006.01) F16F 9/02 (2006.01)

Patent

CA 2013629

Abstract The present invention relates to an arrangement for a gas spring (1). This comprises a cylinder (2) with a piston (3) capable of being displaced axially therein, which marks the boundary of an inner space (4) of the cylinder (2) filled with a compressible gas-oil mixture. The space (4) varies in volume in accordance with a force (F) acting upon a piston rod connected to the piston. The invention is characterized in that the inner space is so arranged as to communicate via an openable and closable valve (13) with a closed space (10). The arrangement includes a control device (12) for actuating the valve (13), which control device is so arranged as to close the valve (13) once the piston (3) has moved past a predetermined axial position in the cylinder (2), and as to open it at a predetermined time after the moment of closing.

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