Patent ID: 8105020
Filing Date: 2012-01-31
Classification: F01D,F02B,F02C,F05D,Y02T

Abstract:
1. A turbocharger comprising a turbine wheel mounted within a housing assembly for rotation about a turbine axis, a gas flow inlet passage upstream of said turbine wheel, and a gas flow control mechanism located within said housing assembly upstream of said turbine wheel and operable to control gas flow through said gas flow inlet passage, and an actuator assembly mounted to the housing assembly comprising: a lead screw including a lead screw shaft defining a lead screw axis, and a lead screw nut threadedly engaged on a threaded portion of the lead screw shaft, the lead screw being arranged so that rotation of one of said shaft and nut relative to the housing assembly produces linear movement in the other of said shaft and nut in the direction of the lead screw axis, the lead screw engaging the gas flow control mechanism at a location within a housing cavity defined within said housing assembly; and wherein the housing assembly comprises a turbine housing, a compressor housing, and a bearing housing located between the turbine housing and the compressor housing, and wherein said housing cavity is defined within the bearing housing.