Sunday, February 5, 2017

A more efficient fan shroud


Volvo has developed and patented this idea for their over the road trucks, but there's no reason it can't work on smaller vehicles. The ring surrounding the fan is fixed to the engine block so the ring can be much closer to the fan blades and so i more efficient. Not obvious from the diagram is that the fan shroud is a flexible material, sealed to the radiator and the ring.

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