| 摘要 |
<p>Guiding element (1) comprises a guiding surface (2) having an inner layer (4) and an outer layer (5). The inner layer provides stability and the outer layer is made from a gas-permeable porous material and forms a resistance against the gas which passes through the casing. A chamber (7) for impinging with compressed gas for contact-less guiding of a fibrous material is arranged between the outer layer and the inner layer. Preferred Features: The inner layer has a passage (8) for a connection (9) for impinging the chamber (7). The inner layer exerts a supporting function and is made from a tube or tube segment made from steel.</p> |
