| 摘要 |
The device (5) in a recess between the coupling units (1,2) incorporates sealing components and a component which prevents the sealing components being pressed out into a gap between the units. The component prevents a pressure build-up occurring in one or more spaces between the sealing components. The component, by reason of a medium film on the coupling unit facing surfaces, presses past the seal and into the space during the reciprocal movements (3,4) of the units. It has considerable sealing precision against the sliding surface and inner wall in the recess. |
