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    • 8. 发明专利
    • Mechanical seal
    • 机械密封
    • JPS6110171A
    • 1986-01-17
    • JP12874984
    • 1984-06-22
    • Toshiba Corp
    • HARADA TOSHIO
    • F16J15/34
    • F16J15/3468
    • PURPOSE:To always exhibit stable sealing function by elastically deforming a fixed ring in such a manner as to become more distant from a rotary ring to correct deformation due to sliding heat. CONSTITUTION:If a thickness relief portion 22 is disposed on a fixed ring 21, the fixed ring, especially the inner peripheral side thereof, is easy to cause elastic deformation axially. Accordingly, the fixed ring 21 can be caused to produce designated amount of elastic deformation by suitably setting the material quality of the fixed ring 21, the capacity of the thickness relief portion 22 and the pressure of a high-pressure fluid P. Thus, even if the sliding surface, especially the inner peripheral side, is thermal expanded excessively by sliding frictional heat between the fixed ring 21 and the rotary ring 5, the fixed ring 21 and the rotary ring 5 can be brought into face contact with each other.
    • 目的:通过使固定环弹性变形,使得与旋转环相距更远的方式使得由于滑动热而变形变得更加均匀,从而始终表现出稳定的密封功能。 构成:如果在固定环21上设置有厚度减小部22,则固定环,特别是其内周侧容易产生轴向的弹性变形。 因此,通过适当地设定固定环21的材料质量,厚度释放部22的容量和高压流体P的压力,可以使固定环21产生指定量的弹性变形。因此,即使 如果通过滑动固定环21和旋转环5之间的摩擦热,滑动面,特别是内周侧被过度热膨胀,则固定环21和旋转环5可以彼此面接触。