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Dual engine locomotive

  • US 9,415,781 B2
  • Filed: 12/21/2009
  • Issued: 08/16/2016
  • Est. Priority Date: 12/23/2008
  • Status: Active Grant
First Claim
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1. A method of operating a locomotive comprising:

  • providing a small engine system including a small engine having a maximum rated power output of 1,000 brake horsepower (bhp);

    providing a large engine system including a large engine having a minimum rated power output of 3,000 bhp;

    commanding low power output of the locomotive for propulsion;

    delivering electrical power to the locomotive for propulsion from the small engine system while the large engine system is turned off;

    commanding higher power output of the locomotive for propulsion;

    delivering electrical power to the locomotive for propulsion from the large engine system while the small engine system is turned off;

    commanding a highest power output of the locomotive for propulsion; and

    delivering electrical power to the locomotive for propulsion simultaneously from the large engine system and the small engine system.

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