| 摘要 |
The present invention pertains to a wiping and/or sealing element for sealing a piston ( 11 ) guided movably in a housing ( 10 ) with a seal held in a groove ( 21, 30 ). The present invention pertains, furthermore, to a process for sealing a movable piston ( 11 ) by means of a seal inserted into a groove ( 21, 30 ) and a clamping and/or support element with a piston ( 21 ), which is guided in a housing ( 10 ) such that it can be withdrawn and extended, wherein the piston (11) is sealed by means of a seal arranged in a groove ( 21 ). To achieve sealing of the piston ( 11 ) with a high sealing force for high liquid pressures at low friction, the wiping and/or sealing element according to the present invention as well as the clamping and/or support element according to the present invention are wherein the seal is a quad ring ( 22 ) with a square cross section.
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