You Got to Be Kidding Me!

Electric Supercharger

Posted in Electric Vehicles, Four Wheels, Going Green by Stacy McMahon on September 27, 2008

A British company has developed an electrically driven supercharger intended to boost small engines without drawing power from the crankshaft to turn the impeller. I’ll take their word that using electricity from the alternator is more efficient than driving the impeller directly from the crankshaft, but I have trouble seeing how physics allows this method to be more efficient than turbocharging, where otherwise-wasted heat from the exhaust drives it.

Anyway, the bigger news here is that the electric supercharger a fuel cell stack needs to produce enough power to drive a car (or an airplane) is now an off-the-shelf part. Take that, hydrogen skeptics…

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