ACTUATING DEVICE FOR A VALVE, IN PARTICULAR A WASTE-GATE FOR AN EXHAUST GAS TURBOCHARGER

摘要

In an actuating structure for a valve, in particular for a waste gate of an exhaust gas turbocharger, comprising a lever element and a valve closure element which is movably supported by the lever element and has a sealing surface for sealing a valve opening wherein the lever element and the valve element cooperate via respective contact areas, which are curved at least with respect to a plane perpendicular to the axial direction of the valve, the curved contact areas are arranged concentrically with each other and have a common center of curvature which is arranged at least essentially at the level of the sealing surface of the valve closure element.