590490 A exhaust conditioning system 10 for an internal combustion engine 12 associated with an agricultural implement, comprises an exhaust duct 26 arranged to communicate exhaust emissions from the engine to the agricultural implement, an impeller fan 52 associated with the agricultural implement and arranged to draw a flow of exhaust emissions through the exhaust duct 26, a condenser 28 comprising an exhaust passage arranged to be coupled in series with the exhaust duct 26 so as to receive the exhaust emissions therethrough between the engine and the impeller fan 52, a condenser fan 24 arranged to direct cooling air across a surface of the exhaust passage, an exhaust temperature sensor arranged to sense a temperature of the exhaust, a computer controller 56 arranged to controllably vary a rate of at least one of the condenser fan 24, the impeller fan 52 or revolutions per minute of the engine responsive to the temperature of the exhaust emissions to maintain the temperature of the exhaust emissions within a selected temperature range.
