Turbocharger - Doosan DE12 Series Operation & Maintenance Manual

4.4. Turbocharger

4.4.1. Main data and specifications
1) Main data and specifications
Specification
Turbocharger Model
Air pressure at
compressor outlet
At
Air suction volume
maximum
output
Speed of turbine
revolution
Maximum allowable
Max. allowable
temperature of exhaust gas at turbine
inlet
Lubricating system
Weight
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.
MAINTENANCE OF MAJOR COMPONENTS
DE12T
TBP45
2
Approx. 1.15 kg cm
/
Approx. 20.0
3
m /min
Approx. 90,000 rpm
112,800 rpm
°C
750
External oil supply
14 kg
- 131 -
DE12TI
T45
2
Approx. 1.2 kg cm
/
Approx. 22.0
3
m /min
Approx. 96,000 rpm
113,000 rpm
°C
750
External oil supply
14 kg
DE12TIS
GT42
2
Approx. 1.3 kg cm
/
Approx. 22.5
3
m /min
Approx. 94,000 rpm
109,000 rpm
°C
750
External oil supply
14 kg