| abstract |
The invention relates to a valve device for a motor vehicle, comprising a housing (1), a flow channel (2) located in the housing, a flap (3) arranged in the flow channel (2) for closing the flow channel (2), the flap (3) having regions in which a pin (4) penetrating the flap (3) is fastened and the pin (4) being rotatably mounted in the housing (1), and a valve seat (8), which is arranged in the flow channel (2) and which is in contact with the flap (3) when the latter is in the closed position. The flow channel (2) is provided with a plasma coating which renders it hydrophobic or hydrophilic. |