SsangYong Korando III (2010 year). Manual - part 43

04-7

0000-00

2313-15

HFM (Hot Film Air-Mass) sensor

HFM sensor, version 6

* For more information, refer to Chapter "Engine 

Control".

2313-01

Air cleaner assembly and 
resonator

04-8

3. INPUT/OUTPUT OF INTAKE SYSTEM

04-9

0000-00

4. OPERATING PROCESS

Work Flow

▶

04-10

1) Types of swirl

Swirl: One cylinder has two intake air ports, one is set horizontally 

and the other one is set vertically. Swirl is the horizontal air flows in 

cylinder due to the horizontal intake air ports. 

Tumble: Tumble is the vertical air flows in cylinder due to the vertical 

intake air port

Squish: Squish is the air flows due to the piston head. Normally, this 

is appears at the final process of compression. In CRDi engine, the 

piston head creates the bowl type squish.

2) Swirl control

In DI type diesel engine, the liquefied fuel is injected into the cylinder directly. If the fuel is evenly 

distributed in short period, the combustion efficiency could be improved. To get this, there should be 

good air flow in cylinder. In general, there are two intake ports, swirl port and tangential port, in each 

cylinder. The swirl port generates the horizontal flow and the tangential port generates the longitudinal 

flow. In low/mid load range, the tabgential port is closed to increase the horizontal flow. Fast flow 

decreases the PM during combustion and increases the EGR ratio by better combustion efficiency.