3308473 - 1080D crankcase vapour/gas recirculation system (Automatic transmission)

OPERATTION

The oil vapour emissions are controlled by a separator (1) which collects the vapours released in the cylinder heads using a pipe (2).The difference in temperature between the separator and the oil vapours causes partial condensation.The condensed vapours are sent to the cylinder head through the pipe (3).At idle speed, the oil vapours flow through the pipe (4); at higher engine loads through the pipe (3).

OPERATION

During engine operation, the oil vapours coming from the crankcase are collected in the cylinder head.Some of the oil vapours, condensed, drop back into the crankcase; the remaining vapours are sent to the intake through pipes (1) and (2).At idle speed, the oil vapours flow through the pipe (1); at higher engine loads through the pipe (2).