GM and U Mich receive patent on plug-in series hybrid/extended range electric vehicle powertrain using multiple free piston linear alternator engines
Green Car Congress
NOVEMBER 25, 2012
The GM/U Mich patent envisages using multiple free-piston engines (240A through 240D in the patent drawing). Fuels can include gasoline blends, and alcohol blended hydrocarbon fuel grades. Ethanol blended hydrocarbon fuels can include higher ethanol blends (e.g. Click to enlarge.
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