Patent ID: 7913785

Claim:
A snowmobile comprising: a frame; a tunnel formed in a rearward portion of the frame; an engine disposed on the frame; a drive track disposed at least in part in the tunnel and being operatively connected to the engine for propulsion of the snowmobile; at least one ski operatively connected to the frame at least in part forwardly of the drive track; a straddle seat disposed on the frame at least in part above the drive track; a steering device operatively connected to the at least one ski for steering the snowmobile; a radiator disposed between the tunnel and the track, the radiator having a first side facing the track and a second side facing the tunnel, the second side being generally opposite the first side, at least a portion of the second side being spaced apart from the tunnel; and an air passage between the second side of the radiator and the tunnel, when the snowmobile is being operated in a forward direction, a direction of air flow along the first side is opposite a direction of air flow in the air passage.