Abstract

In an automotive turbocharger development, a wide range turbine performance data is required for a precise of an engine matching with a turbocharger. In order to obtain a wide range turbine performance accurately, a wide range operation procedure was introduced in this study by controlling a compressor power which is installed coaxially with a turbine. A variable inlet guide vane which was set on a compressor and could adjust a compressor Euler head and also varying a compressor inlet pressure could adjust a compressor mass flow rate. Applying these procedures, it was confirmed experimentally that a turbine operating range was enhanced more than twice of an ordinal procedure.

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