SSANGYONG Actyon Sports II 2012.01 Manual page 235

(8) Swirl control
A. Overview
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Variable swirl valve
The strong swirl caused by intake air is important element for anti-locking function in diesel
engine. The swirl control valve partially closes the intake port to generate the swirl according to the
engine conditions. When the engine load is in low or medium range, the swirl could not be
generated because the air flow is slow. To generate strong swirl, there are two passages in intake
manifold, and one of them has the valve to open and close the passage. When the valve closes
the passage, the air flow through the another passage will be faster, and the strong swirl will be
generated by the internal structure of the passage. This swirl makes the better mixture of air and
fuel, eventually the combustion efficiency in combustion chamber could be improved. This
provides the enhanced fuel consumption, power and EGR ratio.
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Components
Coolant temperature
sensor
HFM
Accekerator pedal
Crankshaft position sensor
0000-00
D20DTR ECU
module
Variable swirl valve
15-23