Coupling arrangement for rotational coupling of a pivot shaft of a flap aperture of an exhaust valve with a driving member

A coupling arrangement (32) for rotational coupling of about a pivot axis (A) to the rotating pivot shaft (18) a valve aperture (16) of an exhaust valve (10) having a drive member (34) comprises a first coupling member (36) having a for coupling to the pivot shaft (18) formed on the first coupling region and a second coupling part (38) formed with a for coupling to the drive member (34) second coupling region, wherein in the coupling state, the first coupling part (36) and the second coupling part (38) with each other in the rotational coupling form-locking engagement, and in the direction of the pivot axis (A) are supported on one another.