VALVE UNIT FOR A WASTE GATE SYSTEM AND TURBOCHARGER

摘要

The invention relates to a valve unit for a waste gate system of a turbocharger, comprising a valve element (28), an actuating element for the valve element (28) and a bearing sleeve (36) in which the actuating element is rotationally mounted. Said actuation element is pressurized by a spring element in the axial direction counter to the bearing sleeve (36). A passage for waste gas is provided in the region of the contact surfaces, pressed against each other, of the bearing sleeve (36) and the actuating element.