Shuttered radiator system with control

A monocoque locomotive comprising:

• a generally horizontally extending platform;
• a pair of generally vertical sidewalls attached to and extending along the sides of the platform;
• and
• a radiator assembly removably attached to the sidewalls, the assembly including:
• a radiator,
• fan means for selectively drawing air through the radiator and into the inlet of the fan means,
• shutter means for selectively controlling the drawn air flow through the radiator, 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 dram 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.

A locomotive comprising:

• a carbody;
• and
• a radiator assembly attached to the carbody, the assembly including:
• a radiator,
• fan means for selectively drawing air through the radiator and into the inlet of the fan means, 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 fan means for selecting and setting the speed of the fan means in dependence on a determined control temperature, the control means including means for selecting a first control temperature level for comparison to the determined control temperature level in dependence on whether the determined control temperature is increasing or decreasing.