| 摘要 |
The present invention relates to a foreign material deposition preventing structure of an intake manifold. The present invention provides the foreign material deposition preventing structure of the intake manifold, which comprises: an inlet port making recirculation gas and external air flow in; the intake manifold forming an outlet port discharging the recirculation gas and the external air, flowing in the inlet port, to a cylinder; a shaft installed within the intake manifold and having one side connected to a driving motor to be rotated by the driving motor; a blade coupled to an outer circumferential surface of the shaft and selectively opening and closing the outlet port by the driving motor; and an airtight unit provided in the intake manifold and sealing both sides of the shaft exposed to the outlet port to prevent an abnormal material included in the recirculation gas from being deposited between the shaft and the intake manifold. The present invention as described above has an advantage of preventing the foreign material, included in the recirculation gas, from being deposited between the shaft of the blade, opening and closing the outlet port which is a passageway for moving the recirculation gas to the cylinder, and the intake manifold. |
