Energy Storage

  • US 20100257862A1
  • Filed: 10/03/2008
  • Published: 10/14/2010
  • Est. Priority Date: 10/03/2007
  • Status: Active Grant
First Claim
Patent Images

1. Apparatus for storing energy, comprising:

  • a compression chamber for receiving a gas;

    a compression piston means for compressing gas contained in the compression chamber;

    a first heat store for receiving and storing thermal energy from gas compressed by the compression piston;

    an expansion chamber for receiving gas after exposure to the first heat store;

    an expansion piston for expanding gas received in the expansion chamber; and

    a second heat store for transferring thermal energy to gas expanded by the expansion piston.

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