| 摘要 |
PURPOSE:To ensure the projected retreatment of opposed movable vanes by fitting an axis with a spring to the vertical hole bored on said vanes and providing a vent hole at the end of the vertical hole. CONSTITUTION:Movable vanes 2 are arranged in the notch 8 of a rotor 1 and a plurality of vertical holes 3 is opened on the root side of said vanes 2. And the vertical holes 3 of the vanes 2 are coupled with an axis 4 and a spring 6 is fitted between both vanes 2. A vent hole 5 is formed at the end of the vertical holes 3 of the vanes 2. Due to the effect of a high pressure fluid entering at said vent hole 5, the vanes 2 are pushing upward and the oscillation thereof is prevented, because the vanes 2 are guided by the axis 4, thereby ensuring the smooth projected treatment of the vanes 2. |
