Turbocharger with integrated actuator

A variable turbine geometry (VTG) turbocharger (1) comprising

• a turbine wheel (4);
• a turbine housing (11) that surrounds the turbine wheel (4);
• a VTG device (20) disposed in the turbine housing (11) adjacent to the turbine wheel (4), the VTG device (20) configured to selectively control the amount of exhaust gas delivered to the turbine wheel (4);
• a bearing housing (8) defining a shaft-receiving bore (25);
• an actuating mechanism (40, 140) configured to connect the VTG device (20) to an actuator (30), the actuating mechanism (40, 140) comprising an actuation pivot shaft (54, 94) that is disposed in the shaft-receiving bore (25) and connected to the VTG device (20), at least a portion of the actuating mechanism (40, 140) disposed externally of the bearing housing (8);
• the actuator (30);
• and
• a cover (75) that surrounds the actuator (30) and the actuating mechanism (140), and forms a sealed connection with the bearing housing (8) such that exhaust gas passing into the shaft-receiving bore (25) is prevented from escaping to the atmosphere.