Shuttered radiator system with control

A radiator assembly for an engine having a cooling water system for circulating cooling water through the engine to operatively control the temperature of the engine, the assembly including:

• a radiator in fluid communication with the cooling system;
• a fan means, including a motor for driving said fan means, for selectively drawing air through the radiator and into the inlet of the fan means;
• a shutter means for selectively controlling the drawn air flow through the radiator;
• a motor shield for shielding the motor from relatively hot air exiting from the shutter means;
• air ducts situated about the motor for supplying relatively cool air to cool the motor;
• and
• control means comprising an engine control computer responsive to a water temperature sensor, an ambient air temperature sensor and an oil temperature sensor, the control means being operatively attached to the shutter means for actuating the shutter means to control the drawn air flow in dependence on a determined control temperature, the control means including means operatively attached to the fan means for selecting and setting the speed of the fan means in dependence on the determined control temperature.