| 摘要 |
The device has two plastic individual parts (2,3), in which a flow channel (11) is formed in mounted condition for combustion air. The plastic individual parts have corresponding welding faces, which lie radial outside the flow channel and at which the plastic individual parts are connected with each other by frictional welding. The two spaced welding faces are provided at two plastic individual parts. The welding faces lie in areas, which include an angle with the flow channel axis. |
