Patent ID: 7275512

Claim:
An air intake device for an internal combustion engine, comprising: a first air chamber formed with a first opening for aspirating air into said first air chamber; a first induction duct extending between an inlet opening leading into said first air chamber and an outlet opening through which said first induction duct communicates with an inlet duct of a cylinder head of the internal combustion engine; a second induction duct; a second air chamber formed with a second opening, said second air chamber being coupled to said second induction duct and being pivotally mounted together with said second induction duct into a first pivot position in which said first air chamber communicates with said first opening and into a second pivot position in which said second opening communicates to aspirate air from said first opening and substantially closes said first opening relative to said first air chamber; wherein: in the first pivot position of said second induction duct, air to be inducted by the internal combustion engine flows through said first opening into said first air chamber and into said first induction duct; and in the second pivot position of said second induction duct, said first opening and said second opening are coupled to each other and form a seal, air to be inducted flows through said first opening and directly through said second opening into said second air chamber, and through said second induction duct into said first induction duct.