HEXA

ENGINE

1.6 ENGINE SYSTEMS :

A. Air Intake System :

Air Intake System Schematic Layout :

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Description :

Atmospheric air is drawn into the combustion

chamber through the air intake system as shown

in above schematic layout. The air intake system

should have the ability to supply sufficient quantity

of air to the engine.

The air is driven to the intake manifold primarily

due to the suction created by the engine. The

fresh air from the outside atmosphere is made to

pass through an air filter and into the

turbocharger. Here the air is compressed by the

turbocharger which is driven by exhaust gasses. It

then passes through the intercooler where

temperature of the compressed air is reduced and

then into the combustion chamber through intake

manifold.

EGR cooler module with EGR and bypass valve

(For Exhaust Gas Recirculation)

is used to reduce

the NOx emission levels. This assembly

comprises of EGR valve, EGR cooler and bypass

valve. A part of the exhaust gas is tapped from the

exhaust manifold and made to mix with the air

coming from the intercooler before entering the

intake manifold.

For more details on EGR cooler

with bypass valve, refer Exhaust System.