INTAKE-AIR SYSTEM [SKYACTIV-D 1.8]

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Intake-air System

Purpose, outline

•  A vacuum pump has been adopted to supply stable vacuum to the brakes and the turbocharger with variable turbine geometry.

Structural view

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System diagram

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Structure

•  The intake air system consists of the following parts:

Part/System name		Reference
Fresh-air duct		(See Fresh-air Duct.)
Air cleaner		(See Air Cleaner.)
Intake manifold		―
Glow system	Glow plug	(See GLOW SYSTEM [SKYACTIV-D 1.8].)
	Glow control module
Air charging system (See AIR CHARGING SYSTEM [SKYACTIV-D 1.8].)	Turbocharger with variable turbine geometry	(See TURBOCHARGER WITH VARIABLE TURBINE GEOMETRY [SKYACTIV-D 1.8].)
	Turbocharger actuator
	Turbocharger solenoid valve	(See TURBOCHARGER SOLENOID VALVE [SKYACTIV-D 1.8].)
	Check valve	―
	Water-cooled charge air cooler	(See WATER-COOLED CHARGE AIR COOLER [SKYACTIV-D 1.8].)
Cylinder head cover (built-in vacuum chamber)		―
Accelerator pedal		(See ACCELERATOR PEDAL, KICKDOWN SWITCH [SKYACTIV-D 1.8].)

Fresh-air Duct

Purpose, function

•  The fresh-air duct brings in fresh air into the engine compartment.

•  Increases air density by taking fresh air, which is cooler than the engine compartment, to enhance the charging efficiency, ensuring combustion stability.

Construction

•  The fresh-air duct is located on the air cleaner.

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Air Cleaner

Purpose, function

•  The air cleaner prevents engine internal damage caused by the penetration of dust or foreign matter.

Construction

•  The air cleaner is located in front of the vehicle battery.

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•  The air cleaner consists of the air cleaner case, air cleaner cover, and air cleaner element.

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•  Non-woven fabric (dry type) air cleaner element has been adopted to remove dust and foreign material in the intake air.

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