Doosan DE12T - Turbocharger

10.4. Turbocharger
10.4.1. Main data and specifications
1) Main data and specifications
2) Operating principle
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.
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Specification DE12T P126TI/P126TI-
Turbocharger Model Allied Signal T45 Allied Signal TV51
Air pressure at
50Hz: Approx. 1.1 kg/cm
2
50Hz: Approx. 1.5 kg/cm
2
compressor outlet
60Hz: Approx. 1.2 kg/cm
2
60Hz: Approx. 1.8 kg/cm
2
At maximum
Air suction volume
50Hz: Approx. 12.5 m
3
/min 50Hz: Approx.18.0 m
3
/min
output
60Hz: Approx. 15.0 m
3
/min 60Hz: Approx. 23.6 m
3
/min
Speed of turbine
50Hz: Approx 79.270 rpm 50Hz: Approx. 75910 rpm
revolution
60Hz: Approx. 86.850 rpm 60Hz: Approx. 83150 rpm
Maximum allowable speed 110,072 rpm 105,414 rpm
Max. allowable temperature of
750 ¡C 750 ¡C
exhaust gas at turbine inlet
Lubricating system External oil supply External oil supply
Weight 14 kg 14 kg
EM0A8001
Oil inlet
Turbine housing
Exhaust pipe
Exhaust gas discharge
Turbine wheel and
shaft assembly
Compressor
wheel
Compressed
air folw
Compressor
housing
Fresh
air inlet
Oil outlet
Intake pipe