| 摘要 |
Controlled-stop gas cylinder for a die cushion, comprising a hollow cylinder body (1), a body base (4) fixed to a first end (1a) of the cylinder body (1), and a rod (2) inside the cylinder body (1), said rod (2) being axially movable from a rest position (Pr) to a stop position. The cylinder also comprises a main chamber (5), an auxiliary chamber independent to the main chamber (5), and a flow duct (20) to communicate the main chamber (5) with the auxiliary chamber. The flow duct (20) is disposed in the rod (2), and the main chamber (5) comprises a gaseous fluid and an oily fluid in its interior when the rod (2) is in the rest position (Pr) and comprises only oily fluid when said rod (2) is in the stop position.
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