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Engine system having improved efficiency

  • US 7,426,910 B2
  • Filed: 10/30/2006
  • Issued: 09/23/2008
  • Est. Priority Date: 10/30/2006
  • Status: Expired due to Fees
First Claim
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1. A hybrid propulsion system for a vehicle, comprising:

  • a fuel burning engine for producing at least some heat;

    a thermoelectric device for generating electrical energy from a thermal gradient caused by the heat produced by the engine;

    an energy storage device for storing electrical energy;

    an electric motor for at least partially propelling the vehicle in response to an amount of electrical energy supplied to the motor; and

    a control system for varying an amount of heat produced by the engine in response to a temperature of the thermoelectric device.

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