INTEGRATED VANE STOPS FOR VARIABLE-GEOMETRY TURBOCHARGER MECHANISM

摘要

A variable-geometry turbocharger (1) with a vane lever (11) that provides a stop function at full open position of the guide vanes (8). The integrated vane-open stop controls the full open position of the VTG mechanism. A vane lever (11) preferably has an integrated protrusion (50) that functions as a vane-open stop that contacts an adjacent vane lever (11), an integrated bolt (56), or the upper vane ring (16) at the full open position to regulate maximum exhaust gas flow to the turbine wheel (5).

主权项

1. A turbocharger (1) with a variable-turbine geometry mechanism (30) having lower vane ring (12), an upper vane ring (16), and guide vanes (8) pivotally positioned at least partially between the lower vane ring (12) and the upper vane ring (16) with the guide vanes (8) that change their angle of attack in front of a turbine wheel (5) via an actuated vane lever (11), the improvement comprising an integrated vane open stop that controls the full open position of the variable-turbine geometry mechanism (30).