Mechanical seal arrangement for high-speed rotation

摘要

A slip ring seal is used in association with components rotating at high speed. It consists of a fixed (5) ring and a rotating ring (11), each of which has a radially orientated face in contact with the other. One part of the rotating ring incorporates weights (22) which shift the center of gravity (s) by a distance (A) proportional to the centrifugal force on the ring. As the speed of rotation increases the pressure of the moving ring on the fixed ring is decreased, minimizing friction-generated thermal stress on the moving parts.