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Hmmm.
In looking at the video, and thinking thru the description, and the video:
This appears to allow the inertia the fan develops, like at 5000 motor rpm, to not be lost when you come to a stop, or take your foot off the gas. The fan would keep "coasting and cooling", even though the engine was at 800 rpm. When fan speed dropped to engine speed, it would then be driven by the engine at that speed. Or am I wrong? sounds like a neat way to allow more air to circulate!
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