| 摘要 |
PURPOSE:To simplify the structure of a safety mechanism, by connecting two working fluid rooms which are divided by a piston, by a relief system, with each other. CONSTITUTION:Two working fluid rooms 19, 19' which are divided by a piston 1, is connected with each other, by a relief system B, B' whose valve system is that, the valve is closed by the pushing force of an elastic body, and opened by the pressure of the working fluid. In this way, it can be prevented that the parts are broken, and a cylinder can be protected, by a simple safety mechanism. |
