Nieuwendyk and the others at Flexxaire are big fans of such efficiency. When the engine senses this, it will tell the blades to reverse their pitch angle, blowing out the radiator and keeping it clean.” “Take forestry, where you’re grinding up trees and brush into little pieces that then get sucked into the radiator. So says Chris Nieuwendyk, Flexxaire’s chief technology officer, who adds that the company’s fan technology solves another everyday problem: radiators getting plugged with debris on job sites.
A Flexxaire fan connects directly to the ECM, so if the engine’s running too hot or cold, the blade pitch adjusts automatically to bring everything back to the correct operating temperature.” “We found that overcooling more so than overheating tends to reduce a diesel engine’s lifespan, and is a common problem in northern climates like ours. That’s according to the assignee of Isert’s patent, Edmonton-based Flexxaire Inc., designers and manufacturers of reversible fan systems for the diesel engines used in forestry, agricultural, mining, earthmoving, and other industrial machinery for more than 35 years.
But what he was probably most proud of in life was a device that “provides total control of airflow, keeps radiators clean, maximizes engine performance, saves fuel, and is robustly built and maintenance free.”
“A man with innovative ideas and a dedicated entrepreneur.” Whether it was his new and improved grease gun design or the scraper gate he developed to keep earthmoving equipment from stalling, inventor Clarence Isert would be proud of his headstone.
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