| 摘要 |
<p>One of the two channels for recirculating the heating medium through the heated drum is a tube section, running from the interior of the drum to the fixed connection. The design simplifies the feed and return of the heating medium through the drum, and does not require extremely fine tolerances for the rotating parts at the axial assembly. At least one limit stop is provided to secure the axial positioning of the tube section. The other channel for the heating medium surrounds the tube section with a sealing sleeve, and associated seals, to be screwed into place on the bearing journal at the fixed connection. The ends of the tube section are lightly convexed, or sit in convex guides. At least the end of the tube section, towards the outer and fixed connection, has a sealing sleeve to give a guide cladding.</p> |
