Abstract: A turbocharger is provided having a turbine wheel and a housing configured to at least partially enclose the turbine wheel. The housing may have a first turbine volute including a first inlet and a second turbine volute having a second inlet. The first and second volutes may be configured to communicate a first and second fluid flow with the turbine wheel. The housing may also have a wall member axially separating the first and second turbine volutes. In addition, the housing may have a valve configured to selectively allow fluid in the first inlet to communicate with fluid in the second inlet.

Abstract: A turbine assembly is provided. The turbine assembly includes a turbocharger drive having a first threaded portion and a turbine wheel assembly. The turbine wheel assembly includes a turbine wheel and a second threaded portion adapted to engage the first threaded portion of the turbocharger drive. The turbine assembly may be utilized in a turbocharger assembly, wherein a compressor is connected to a second end of the turbocharger drive.