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101

ENGINE2.2LDICOR

boost steady or reduce it as needed. By reading the

manifold pressure sensor, the ECU can adjust turbine

inlet pressure (Geometry of Vanes) instantaneously to

control boost at any speed/ load and to limit boost at

full load.

Advantages / Features

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Good low end torque

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Good transient response

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Good fuel economy

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Increased useful engine operating range.

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It provides more matching level of pressure boost

even to a slow spinning turbine without providing

too much of a boost at higher speed.

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VNT is electronically controlled and pneumatically

actuated.

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When the vanes of the TC are closed, the engine

will have a higher exhaust back pressure and

create more heat which will in turn warm the

engine faster in cold ambient conditions.

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Low engine noise

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Lower emission

Inter Cooler

(Fig. 213)

The intercooler further increases the power of the

engine by cooling the pressurized air coming out of

the compressor before it goes into the engine. This

means that if the turbocharger is operating at a boost

of 7 psi, the intercooler system will put in 7 psi of

cooler air, which is denser and contains more air

molecules than warmer air.

Fig. 213

Boost sensor

Instructions duringReception and Inspection

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Ensure that there are no damages to packaging,

if the packaging is damaged, check the

appearance of turbochargers and the parts or

components making up the turbocharger. Amore

in-depth inspection is recommended for the most

sensitive components such as actuator and comp

housing.

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Containers must be unloaded in conditions that

do not expose the system to bad weather (do not

unload and store even momentarily in rain,..).

Otherwise, oxidation / corrosion may well occur

very rapidly)

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If a packaging tray is dropped with turbochargers

in it during logistics operations, the batch of