Abstract
Key words: diesel engines, turbo charging, turbocharger, engine testing, transient regimes
The paper presents the results of laboratory testing of the diesel engine 12 CN 15/18 applied in fast caterpillar vehicles. A comparison between different combinations of turbines and compressors is given by text, table and figures. Special attention was paid to the transient regimes, the acceleration of engine. Different accelerations under criteria of load and speed were analyzed. The paper ends with recommendations for choosing turbochargers.