Patent ID: 9163565
Filing Date: 2015-10-20
Classification: F02D,F16K,Y10T

Abstract:
1. A valve flap device for an exhaust system of a motor vehicle, comprising: a) at least one tubular valve housing with a flow cross section running perpendicular to a central axis and being formed by an inner geometry and b) a shaft which can turn about a valve axis with a valve flap mounted on the shaft, being mounted in the valve housing in the flow cross section to close the flow cross section, wherein the valve housing is made from a tubular pipe blank of sheet metal with a tube diameter that is calibrated to the flow cross section at least partially by mechanical, plastic forming, and wherein the shaft is biased via a first coupling disk and a spring relative to the valve housing in the direction of an open position and the shaft is coupled in form-fitting manner to a drive shaft by a second coupling disk disposed coaxially to the first coupling disk, wherein the two coupling disks have a play between 15° and 35° in a circumferential direction about the valve axis.