| 摘要 |
Double-walled combustion-chamber shaft with an inlet connection and an outlet connection, a finned heat exchanger being held in the combustion-chamber shaft and being connected to the interior of the latter. In order, in such a combustion-chamber shaft, to prevent air bubbles and air pockets from accumulating inside the double-casing during operation, at least one open vent tube 10, which opens into the outlet connection 8, is provided in a way known per se in the uppermost region of the interior of the combustion-chamber shaft 1 designed as a double casing 2, the vent tube 10 opening into the outlet connection 8 essentially in the axial direction of the latter. <IMAGE> |
