199005134 - INTRODUCTION - CRANKCASE VAPOUR/GAS RECIRCULATION SYSTEM

CONSTRUCTION SPECIFICATIONS

The system is design to decant and burn the breather gases from the cylinder block/crankcase. These gases are made up of a mixture of air, fuel vapours and lubricant oil vapours.The gases coming from the crankcase rise to the cylinder head and are then directed to a separator (1) which has a diaphragm which allows:- the condensation and collection of the vapours- the absorption of the vapours in the intake circuit for their combustion.The system is equipped with a pipe (2) for the intake of vapours connected to the air chamber and a pipe (3) connected to the turbocharger intake.This makes it possible to:- during supercharging, send the vapours via the duct (3) to the turbocharger intake- during idling or release, send the vapours to the duct (2) connected to the air chamber, downstream of the throttle.1. Separator2. Vapour supply pipe at idle speed3. Vapour supply pipe at supercharging speed4. Air chamber5. Turbocharger air intake hose

Vapour separator

1. Connection to air chamber2. Connection to turbocharger intake hose3. Flow switching diaphragm4. Vapour condensation cones5. Condensed vapour collection on cylinder head