| 摘要 |
A foreign particle eliminating function and durability of an engine may be improved by an intake duct system having a cyclone duct including a cyclone module for generating torque of air, wherein the cyclone module includes: a central shaft; a plurality of cyclone blades that are formed outward from the central shaft; and a turbulence preventing device that is formed at a downstream side of the central shaft of the cyclone module so as to prevent turbulence of the air that has passed the cyclone blade.
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