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Hybrid construction equipment

  • US 6,678,972 B2
  • Filed: 01/11/2002
  • Issued: 01/20/2004
  • Est. Priority Date: 02/06/2001
  • Status: Expired due to Fees
First Claim
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1. Hybrid construction equipment comprising:

  • on an upper revolving superstructure rotatably placed on a lower traveling unit, an engine;

    a generator driven by said engine;

    a battery charged with electric power generated by said generator;

    an electric motor driven by electric power of said battery;

    an inverter for controlling drive of said electric motor; and

    a driver'"'"'s cab, wherein said battery is placed to be isolated from said engine and said generator, wherein said battery is placed inside an upper revolving superstructure frame under said driver'"'"'s cab.

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