Patent ID: 7690451

Claim:
A heavy-duty vehicle accessory assembly mechanically and electrically coupled to a heavy-duty vehicle, the heavy-duty vehicle having an internal combustion engine coupled to a generator, the heavy-duty vehicle accessory assembly comprising: a heavy duty vehicle accessory traditionally powered directly by the internal combustion engine requiring in excess of 1 kilowatt of operational power comprising one of a compressor, a heavy duty hydraulic equipment, and a pump, the heavy duty vehicle accessory having an input shaft; an electric accessory motor having an electrical power input and an output shaft, the electric accessory motor configured to receive electrical power from the heavy-duty vehicle, convert said electrical power to mechanical shaft power, and to supply said mechanical shaft power to the vehicle accessory; and a mechanical coupling configured to couple the electric accessory motor with the vehicle accessory, the mechanical coupling including a first pulley affixed to the output shaft of the electric accessory motor, a second pulley affixed to the input shaft of the vehicle accessory, and one or more belts that mechanically couple the first pulley with the second pulley.