To provide an exhaust control system that can also acquire a desired torque characteristic in all velocity areas in a vehicle provided with a belt-type continuously variable transmission. In an exhaust control system which is provided with an engine 1 that...

The valve flap for shutting off the flow of exhaust gas through a pipe (2) comprises a disk (4) which rotates on a shaft (3). The disk and shaft are made in one piece, e.g. by sintering or forging. An Independent claim is included for a rotary valve incorp...

The control device with a control valve (11) is particularly for exhaust gas control with a control valve within aa conduit (12), the valve being heeld on a shaft (13). With its ends (14,15) the shaft is pivotably located in bearing accommodations (17,18) ...