Patent ID: 6729134
Filing Date: 2004-05-04
Classification: F01D,F02C,F05D

Abstract:
A variable geometry turbocharger assembly comprising:a turbine housing having an exhaust gas inlet and an exhaust gas outlet, a volute connected to the inlet, and a nozzle wall adjacent the volute; a turbine wheel carried within the turbine housing and attached to a shaft; a plurality of movable vanes disposed within the turbine housing adjacent the nozzle wall between the exhaust gas inlet and turbine wheel, each vane having an airfoil thickness defined by an inner vane radial surface and an outer vane radial surface; a bypass exhaust gas flow port disposed through the turbine housing, the port having an inlet opening upstream from the turbine wheel, and a outlet opening downstream from the turbine wheel, the inlet opening being at least partially coverable by a respective vane depending on vane position.