| 摘要 |
The exhaust gas feed-back pipe (3) is not in direct contact with the suction unit (5) but has a distance (L) to the suction unit wall (7).This wall is bridged over by the pre-tensioned seal (21).The exhaust gas feed-back pipe is so held by a holding device (30) on the suction unit that a relative movement between pipe and unit is possible by compression or part unloading of the seal. The exhaust gas feed-back pipe has a flange (13) working in conjunction with the seal, from which at least one fixture device (29) evolves, which fixes the pipe to the unit, establishing the clearance (L) between them |
