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Drive system for turbochargers with rotary electric machines

  • US 5,105,624 A
  • Filed: 07/12/1990
  • Issued: 04/21/1992
  • Est. Priority Date: 07/18/1988
  • Status: Expired due to Fees
First Claim
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1. A turbocharger drive system combined with an internal combustion engine, comprising:

  • means for detecting a load on the internal combustion engine;

    means for detecting a rotational speed of the internal combustion engine;

    a plurality of turbocharger assemblies, each having series-connected exhaust turbines, respectively, and series-connected compressors, respectively, each turbocharger assembly having a rotatable shaft;

    a plurality of first rotary electric machines, each being drivable by said rotatable shaft of corresponding turbocharger assemblies;

    a second rotary electric machine operatively coupled to an output shaft of the internal combustion engine;

    means for driving said plurality of first rotary electric machines as electric generators;

    means for driving said second rotary electric machine as an electric motor; and

    means for supplying electric power from said electric generators to said electric motor.

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