| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable intake system device of an engine capable of reducing intake noise occurring when the engine rotates at high-speed by making it possible to feed a large quantity of new air into a combustion chamber via an intake duct when the engine rotates at high-speed by arranging an auxiliary intake duct in an air cleaner.SOLUTION: A variable intake system device of an engine has an auxiliary intake duct arranged by inserting one end of the same inside of an air cleaner and for sucking new air, a magnet type variable valve arranged in an end part located inside of the air cleaner of the auxiliary intake duct and opening/closing the auxiliary intake duct such that an opening angle increases as an intake negative pressure rises. Further, it is preferable that the device has an intake duct coupled to and arranged to in the air cleaner and sucking new air, and intake hose guiding air having passed through the air cleaner to the combustion chamber, and a resonator arranged in the intake duct and reducing intake noise. |
