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Distributed ignition method and apparatus for a combustion engine

  • US 7,007,669 B1
  • Filed: 12/03/2004
  • Issued: 03/07/2006
  • Est. Priority Date: 12/03/2004
  • Status: Expired due to Fees
First Claim
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1. A distributed ignition engine, comprising:

  • a cylinder assembly, comprising (1) an engine block having a piston cylinder defined therein, (2) an engine head secured to the engine block, and (3) a piston that translates within the piston cylinder, wherein the engine block, the engine head, and the piston cooperate to define a combustion chamber;

    an intake port positioned in fluid communication with the combustion chamber during intake of a primary fuel and air mixture;

    a fuel injector operable to inject a pilot fuel for introduction into the combustion chamber of the engine;

    a spark plug configured to ignite the primary fuel and pilot fuel within the combustion chamber;

    an engine load determining device; and

    a controller configured to receive information from the engine load determining device and configured to responsively determine a desired spark plug ignition timing based on a desired homogeneous distribution of the pilot fuel within the combustion chamber.

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