Patent ID: 8485311

Claim:
An air duct assembly for ducting air from an air cleaner housing to an engine comprising: a first duct having an air flow passage communicating with the air cleaner housing; a second duct spaced from the first duct and having an air flow passage communicating with the engine, said second duct having a first cylindrical wall defining the air flow passage of the second duct and having a second cylindrical wall located radially outboard of the first cylindrical wall to form a chamber between the first and second cylindrical walls; a plurality of openings in the first cylindrical wall to communicate between the air flow passage of the second duct and the chamber; and a flexible bellows having a convoluted wall and connecting the first and second ducts to conduct air flow across the space between the first and second ducts as the first and second duct move relative one another during movement of the engine, said convoluted wall of the flexible bellows being radially outboard of the airflow passages defined by the first duct and the second duct and said flexible bellows overlying the second cylindrical wall.