| 摘要 |
<p>A gas cylinder-piston device (10) comprising a body (1) as structure, a rod-piston (2) that moves inside of said body (1), a bushing (20) between the body (1) and the rod-piston (2), the interior of the body (1) occupied by a compressible gas, characterised in that said bushing (20) comprises a deformable zone (40), which in turn contains an O-ring seal (3) that forms an airtight junction of the bushing (20) with the inner face of the body (1), wherein said deformable zone (40) is designed in a manner such that surrounds at least the O-ring seal (3) such that, in case of rod-piston (2) expansion overspeed within the body (1), through deformation, the deformable zone (40) causes the O-ring seal (3) to lose the airtight seal at the junction of the bushing (20) with the inner face of the body (1).</p> |
