Eberspächer Exhaust Technology Gmbh & Co. Kg

Purem Gmbh

Martin Wagmann

Felix Hackländer

Christoph Puchta

Achim Glieden

A muffler for an exhaust system of an internal combustion engine includes at least one muffler component with a perforation defined by a plurality of through-flow openings in a wall of the muffler component. The through-flow openings can be flowed through in a flow direction in the direction from an upstream side of the wall to a downstream side of the wall. At least in the case of some or all of the through-flow openings of the perforation, a through-flow opening flow cross section decreases in the flow direction in order to provide a through-flow opening flow-guiding surface.

Muffler, exhaust system including a muffler, and method of making a muffler for an exhaust system

A quick-change coupling (), for coupling a device carrier () to a carrier unit () of a welding cell (), especially for welding together components for internal combustion engine exhaust systems, includes a first coupling unit () to be fixed to a carrier unit () and a second coupling unit () to be fixed to the device carrier (). One of the coupling units () has a pushing meshing recess () and the other of the coupling units () has a pushing meshing body () that can be inserted into the pushing meshing recess () in a direction of pushing (R). A positive-locking positioning device () is adjustable between a released state and a positive-locking positioning state. With the pushing meshing body positioned meshing with the pushing meshing recess, the positive-locking positioning device in the positive-locking positioning state holds the pushing meshing body in an operating position.

Growing community of inventors

St. Wendel, Germany

Martin Wagmann