Patent ID: 8167067

Claim:
A self-propelled low-emission off-road vehicle having an engine compartment in which an internal combustion engine operable to propel the vehicle is located, said off-road vehicle comprising: a vehicle cooling assembly positioned within the engine compartment and including an enclosure and a powered fan operable to vent the enclosure, with the enclosure and fan configured so that the engine is positioned outside of the enclosure, said enclosure including opposite spaced apart fore and aft margins, spaced apart side margins, and spaced apart top and bottom margins extending in a fore-and-aft direction between the fore and aft margins, said enclosure presenting an air inlet and an air outlet located along respective margins, and an air flow plenum enclosed by the margins, with the inlet and outlet permitting fluid communication between the air flow plenum and ambient, said powered fan being positioned in a first one of the inlet and outlet and operable to direct a stream of air along a path between the inlet and outlet, said enclosure including a heat exchanger operable to discharge heat produced by the vehicle, said heat exchanger at least partly defining one or more of the margins and presenting a second one of the inlet and outlet; and an engine exhaust assembly operable to carry engine exhaust gas from the engine to ambient, said engine exhaust assembly including an exhaust treatment device that receives engine exhaust gas and discharges treated exhaust gas, said exhaust treatment device being positioned at least partly in the air flow plenum and positioned fluidly in the path between the inlet and outlet, with the air stream flowing along the exhaust treatment device to remove heat therefrom.