Experimental Study on Mixed-Flow Turbine for Automotive Turbocharger

Turbine experiment on the mixed flow turbine for H1F turbocharger,which is currently used in J6110Z diesel engine,was undertaken.The experimental results were analyzed and compared with that of currently used radial turbine.It can be seen from the mass flow character comparison that since it has combined flow character of the radial and axial flow turbine,the mixed flow turbine has larger flow capacity than relevant radial turbine,which will benefit the acceleration character for turbocharged diesel engine.The efficiency experimental result also shows that the mixed flow turbine can obtain higher maximum efficiency at lower velocity ratio u/c 0,which will benefit the low speed character for turbocharged diesel engine.