Recirculation Circuit For Vapours Coming From The Crankcase (Blow-By) - Fiat Bravo Service Manual

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R E C I R C U L A T I O N C I R C U I T FOR V A P O U R S

COMING F R O M T H E C R A N K C A S E ( B L O W -

The crankcase emissions are composed of mix-

tures of air/diesel and exhaust gases w h i c h es-

cape from the piston rings, in addition to lubri-

cant oil vapours.

They are defined as b l o w - b y or breather gases.

The breather gases coming from both

crankcase (2) and the cylinder head (5) reach

the separator ( 1 ) .

In the separator (1) the gases lose some of the

oil dissolved in them w h i c h return to the sump

via the pipe (3) in the form of drops.

The remaining gases, on the other hand, are d i -

rected, through the pipe (4) t o the intake circuit.

Print no. 506.670/76