Valve device for controlling an exhaust gas flow of an internal combustion engine

摘要

A valve device for controlling an exhaust gas flow of an internal combustion engine includes a housing comprising a channel which has the exhaust gas flow therethrough. A shaft is disposed in the housing. The shaft is rotatably mounted about a shaft axis. A flap is connected to the shaft. The flap controls a flow cross section of the channel. The flap comprises two flexurally rigid support plates. The support plates each comprise an outer periphery. An elastic flap body is arranged between the support plates. The elastic flap body comprises an outer periphery which is larger on all sides than the outer periphery of the support plates. A distance between the outer periphery of the elastic flap body and the outer periphery of the support plates is largest in an area of the shaft axis, and smallest at an angle of 90° relative to the shaft axis.

主权项

1. A valve device for controlling an exhaust gas flow of an internal combustion engine, the valve device comprising:
a housing comprising a channel configured to have the exhaust gas flow therethrough, the channel comprising a channel axis; a shaft disposed in the housing, the shaft being mounted about a shaft axis so as to be rotatable; and a flap connected to the shaft, the flap being configured to control a flow cross section of the channel, the flap comprising two support plates configured to be flexurally rigid, the two support plates each comprising an outer periphery, and an elastic flap body arranged between the two support plates, the elastic flap body comprising an outer periphery configured to be larger on all sides than the outer periphery of the two support plates, wherein, a distance between the outer periphery of the elastic flap body and the outer periphery of the two support plates is largest in an area of the shaft axis, is smallest at an angle of 90° relative to the shaft axis, and decreases with an increasing angle off the shaft axis.