Flexible and rigid pipeline elements connection element for e.g. exhaust gas line in passenger car, has layer between outer and inner pipes, and three balls limiting intermediate space and provided in layer

摘要

The element has a layer between outer and inner pipes (11, 12), where the connection element has torsional degree of freedom, and the layer is orthogonal to a rotation axis. Three balls (13) limiting an intermediate space are provided in the layer, and are made of steel material or ceramic material. A metal knitted fabric (14), a glass fiber fabric (15), and a ceramic woven fabric are positioned between the two pipe sections. A metal cage is inserted between the two pipe sections. The balls are fixedly attached to the metal cage.