Blow-off valve for turbine of exhaust gas turbocharger mounted in internal combustion engine, has cam gear which converts rotational movement of drive element to translational movement of valve plate

摘要

The blow-off valve (1) has a valve stem (4) which is guided in valve housing (6). A valve element (3) is connected with a valve seat (10). A cam gear is provided to convert a rotational movement of drive element to a translational movement of valve plate (2). A roller support (15) is arranged at one end of valve stem. A roller (17) is positioned on roller support and is engaged with a guide groove (19).