With initiatives to reduce greenhouse gas emissions being promoted as a countermeasure to global warming, the trend toward electrification of automobiles is accelerating in order to achieve low-carbon and decarbonized vehicles. Hybrid vehicle engines use a motor assist to achieve higher efficiency, and their operating range is limited. Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. (MHIET) has developed a high-efficiency vaned diffuser compressor and vaned nozzle turbine that meet requirements for such hybrid vehicle engines. In addition, we have studied and evaluated simplified structures to provide these products at low cost. This report describes these matters.
