Turbine wastegate

Abstract

A turbocharger wastegate assembly includes a turbine housing that includes a chamber, a bore, two exhaust passages, a divider wall disposed between the two exhaust passages, and a wastegate seat, where the divider wall includes a divider wall surface; and a wastegate that includes a shaft, an arm and a plug, where the shaft is received by the bore of the turbine housing for rotation about an axis of the shaft to orient the plug in a closed state and to orient the plug in an open state, where, in the closed state, a contact portion of the plug contacts the wastegate seat and a shell portion of the plug defines a clearance with respect to the divider wall surface and extends into the two exhaust passages.

Dependencies are inferred from the claim text.