Patent ID: 7040437

Claim:
A snowmobile comprising: a longitudinally extending chassis having a front portion and a rear portion, the chassis supporting an engine proximate the front portion and an operator seat proximate the rear portion, the engine including an air intake for providing ambient air to an intake port of one or more cylinders of the engine, the engine powering a drive track operatively connected to the chassis proximate the rear portion, the chassis front portion mounting a pair of steerable skis and supporting a body assembly, the body assembly containing the engine and the air intake, the body assembly having a first opening for allowing ambient air to flow into the body assembly and into a channel of the air intake, the channel extending between first and second channel openings and defining a hollow throughway for airborne contaminants entering the channel from one of the first and second openings, the channel having an aperture on a wall thereof, the aperture positioned generally parallel to the direction of ambient airflow through the channel and opening into a passageway leading to the intake port of one or more cylinders of the engine, the body assembly having a second opening providing an outlet for airflow from the channel, the second body assembly opening equipped with a louver that selectively opens and closes the second body assembly opening.