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Internal combustion engine using opposed pistons

  • US 20050081805A1
  • Filed: 06/15/2004
  • Published: 04/21/2005
  • Est. Priority Date: 12/18/2001
  • Status: Active Grant
First Claim
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1. A combustion cylinder for an internal combustion engine comprising:

  • a first member defined by a first hollow tube having a predetermined length sized and shaped to receive at least one piston for reciprocal movement therewithin and defining a combustion chamber having a high thermal expansion coefficient and low conductivity into which fuel and air can be introduced, compressed and ignited;

    a second member having a high thermal expansion coefficient and a high conductivity adjacent said first member;

    a third member having a low thermal expansion coefficient and low conductivity positioned about said first hollow tube adjacent said combustion chamber of said first hollow tube, wherein said first, second and third members interact to reduce tapering of said first member along said predetermined length by initially containing through said third member heat within said combustion chamber and reducing expansion of said combustion chamber and thereafter distributing heat developed in said combustion chamber along said first member by directing the heat through said second member to maintain a generally uniform temperature along the length of said first member.

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