| 摘要 |
PURPOSE:To improve the control characteristic of a small flow and the closability of a valve, by winding a reversible shape memory material in a coil shape and fixing one end of this coil to a passage in a valve housing. CONSTITUTION:A reversible shape memory material 4 is wound in a coil shape, and one end of this coil 4 is fixed to a passage in a valve housing equipped with an L-shaped flow path. In this way, the coil 4 in the flow path, being promptly deformed by receiving the temperature of fluid directly to the whole body of the coil, can control a flow of the fluid by means a gap between elements of the coil 4, improving the control characteristic of a small flow and the closability of a valve. |
