Eberspächer Exhaust Technology Gmbh & Co. Kg

Purem Gmbh

Annika Stark

Steffen Schmitt

Stefanos Varelis

Markus Birgler

Matthias Grün

Bernd Müller

Miljenko Novosel

Ralf Hölsch

Jan Pallmann

Milijenko Novosel

An exhaust gas flap, especially for the exhaust gas stream of an internal combustion engine, includes a flap tube () and a flap diaphragm () carried in an interior of the flap tube on a pivot shaft () rotatable about a pivot axis. A flap wing () is mounted on the pivot shaft () and a wing stop () is associated with the flap wing () on an inner circumferential area of the flap tube. The flap wing () has a mounting area () with uncurved mounting surfaces (). Opposing mounting surfaces () or/and a mounting recess () at the pivot shaft () provide an opposing mounting area that at least partially receives the flap wing mounting area () of the flap wing (), the opposing mounting area being provided on the outer circumferential area of the pivot shaft ().

Exhaust gas flap

An electric exhaust gas valve device () controls a flow cross section () of an exhaust pipe () of an exhaust system () of an internal combustion engine. The valve device includes an electric drive () driving a driven shaft () rotatingly about an axis of rotation (). An exhaust gas valve () has a drive shaft () aligned coaxially to and rotatable about the axis of rotation for controlling the cross section. A coupling device () transmits torques between the driven shaft and the drive shaft and includes a connection element connected to the drive shaft, a transmission element () connected to the driven shaft and the connection element with a prestressing spring () supported axially on the connection element and/or on the drive shaft as well as on the transmission element and axially driving the transmission element against the driven shaft to reduce thermal load.

Electric exhaust gas valve device

Growing community of inventors

Wernau, Germany

Annika Stark