6.4. Turbocharger 6.1.1. Main data and specifications 1) Main data and specifications 2) Operating principle Oil inlet Turbine wheel and shaft assembly Compressor housing Exhaust gas discharge Exhaust pipe Fresh air inlet Compressed air flow Oil Outlet Compressor wheel EAOM8001 The turbocharger is a system designed to make use of the engine exhaust gas energy to charge high-density air into the cylinders, thereby to increase the engine output. - 161 - MAINTENANCE OF MAJOR COMPONENTS Specification DE12TI DE12TIA, DE12TIS Turbocharger Model T45 GT42 At maximum output Air pressure at compressor outlet Approx. 1.2 kg/cm2 Approx. 1.3 kg/cm2 Air suction volume Approx. 22.0 m3/min Approx.
22.5 m3/min Speed of turbine revolution Approx. 96,000 rpm Approx. 94,000 rpm Maximum allowable 113,000 rpm 109,000 rpm Max. allowable temperature of exhaust gas at turbine inlet 750 C 750 C Lubricating system External oil supply External oil supply Weight 14 kg 14 kg