| 摘要 |
A self-adjusting seal load compensator for use with rotary fluid joints comprising an expansible motor type device utilizing a freely axially movable piston having a piston rod bearing against a rotary fluid joint to compensate for fluid pressures exerted upon the rotary joint seal structure. Indicating means are located upon the piston rod to indicate the degree of extension of the piston rod from its associated cylindrical chamber, and thereby indicate the condition of rotary joint seal wear. Compensating movement of the rotary joint by the invention is limited to prevent metal-to-metal wear, and the compensator includes built-in stop means.
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