Horton Inc. introduced Arctis two-speed fan drives for cooling medium-duty trucks, buses, severe-service vehicles, rear-engine cement mixers and other on- and off-highway equipment with little to no ram air. The new line provides the highest torque available from Horton, 2,700 inch-pounds, in its patented two-speed technology.
In most conditions, the two-speed fan drive is powered by eddy current, turning the fan at a lower speed, reducing operating noise and increasing available horsepower for auxiliary systems. When the vehicle needs more cooling, the fan drive springs actuate to run the fan at full input speed. Because the eddy current mode provides sufficient cooling in most operating conditions, full-speed fan operation is reduced by 85 percent. This is said to improve fuel economy, reduce operating noise and increase available horsepower. Fewer fan engagement cycles also improve fan drive, belt and tensioner reliability while minimizing radiator abrasions from dust and debris.
Arctis two-speed fan drives also feature superior bearing technology, a high-torque clutch pack to drive larger fans at higher ratios and a larger air chamber for full disengagement, the company said. The fan drives are said to be easy to install and maintain.
Horton Inc.
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