Man D2862 LE221 - Page 21

INTRODUCTION
D2862LE221/223rearrightview
(1)Turbocharger,left
(2)High-pressurepump
(3)Distributor
(4)Chargeairmanifold
(5)Turbocharger,right
(6)Oilsump
(7)Fuellter
(8)Flywheel
(9)Flywheelhousing
Engine,general
The12-cylinderenginesdescribedhereareliquid-cooled4-strokedieselengineswithturbocharger.The
enginesoperatedusingthecommonrailhigh-pressureinjectionsysteminconjunctionwithEDC7(Electronic
DieselControl).
Enginemonitoring
Twoenginecontrolunitsaretted.Amasterandaslave.Eachenginecontrolunitcontrolsonebankof
cylinders.
Varioussensorsmonitortheengine.Thesensorsarespeed,pressureandtemperaturesensors,forexample,
whichsendinformationaboutthevariousengineoperatingconditionsandstatestotheenginecontrolunits.
TheenginecontrolunitsoperateaccordingtotheIPOprinciple:
I=Input
P=Processing
O=Output
AE63stedition19