| 摘要 |
A piston (6) is sealed in relation to the cylinder (2,3), with the cylinder divided into two chambers (A,B). A limited channel (10-14) in the piston is for regulated flow of fluid from the one chamber to the other on movement by the rod. If regulation is required in one direction, the piston can have at least one axial through hole (17), provided with a check valve (18,19), permitting flow of fluid between the cylinder chambers through the hole in the one direction. |
