Patent ID: 8330285

Claim:
An automobile comprising: an engine; a heat exchanger receiving heat from the engine and generating a vapor stream; a vapor stream monitoring unit connected to the heat exchanger, the vapor stream monitoring unit generating vapor stream data; a control unit connected to the vapor stream monitoring unit receiving the vapor stream data; a generator connected to the control unit and the heat exchanger and receiving the vapor stream, the generator including a rotor, an impeller rotating the rotor from the vapor stream, a stator surrounding the rotor, the stator including a first winding and a second winding, wherein the stator generates electricity when the rotor rotates, and a switch connected to the first winding and the second winding, the control unit configured to send a signal to the switch to activate the first winding or the second winding based upon the vapor stream data and a desired amount of electricity from the generator; and a battery receiving the electricity from the generator.