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Multi-Stroke Internal Combustion Engine for Facilitation of Auto-Ignition Operation

  • US 20080098969A1
  • Filed: 10/30/2006
  • Published: 05/01/2008
  • Est. Priority Date: 10/30/2006
  • Status: Active Grant
First Claim
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1. A method of operating an engine having at least one cylinder including an intake valve and an exhaust valve, the method comprising:

  • injecting a first amount of fuel into the cylinder;

    auto-igniting a first mixture of air and said first amount of fuel by compressing said first mixture;

    injecting a second amount of fuel into the cylinder after auto-igniting said first mixture;

    combusting a second mixture of said second amount of fuel and gasses from auto-ignition of said first mixture;

    holding an intake valve of the cylinder closed between auto-igniting the first mixture and combusting the second mixture; and

    exhausting said combusted second mixture.

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