In order to study the performances of the high & low stage compressors and that of the system as a whole,a two-stage turbocharging system was matched,and a special two stage turbocharging system test bench was set up.For each test curve,the speeds of the two stage turbochargers were adjusted to some fixed data,and the compressor performance experiment carried out.The results showed that,there is much difference between the corrected mass flow and actual mass flow of the high stage compressor.In order to fin...