| 摘要 |
<p>A contact sealing between two parts movable relative to each other, particularly for sealing a material flow through a wall opening and a rotating drum gas-tight against the ambient, comprising a sealing member actuated by a force against a sealing surface. The sealing includes a bottoming groove facing to the sealing surface and including a flexible and/or elastic closed pressurized shell abutting the surface of the sealing member remote from the sealing surface.</p> |
