Patent ID: 6925806

Claim:
A method for constructing a variable geometry turbocharger assembly comprising a center housing, a turbine housing attached to the center housing, a turbine wheel rotatably disposed in the turbine housing, a plurality of vanes movably disposed within the turbine housing, and a unison ring rotatably disposed within the turbine housing and in contact with the plurality of vanes, the method comprising the steps of: placing a heat shroud over a surface of the center housing directed towards the turbine housing; attaching a unison ring support to the surface of the center housing, the support including a surface portion that contacts the heat shroud and retains the heat shroud in place, the support including one or more surfaces for accommodating rotatable placement of the unison ring thereagainst; and mounting the unison ring onto the support so that an inside diameter of the unison ring is in contact with a first surface portion of the support, and an inside surface of the unison ring is in contact with a second surface portion of the support.