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Cylinder Charge Temperature Control for an Internal Combustion Engine

  • US 20090013668A1
  • Filed: 07/12/2007
  • Published: 01/15/2009
  • Est. Priority Date: 07/12/2007
  • Status: Active Grant
First Claim
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1. A method of operating an engine including at least a first cylinder and a second cylinder, the method comprising:

  • operating the first cylinder of the engine to provide a net flow of gases from an intake manifold to an exhaust manifold for a plurality of cycles of the first cylinder and combusting a first mixture including said gases in said first cylinder by auto-ignition; and

    during said operation of the first cylinder, repetitively operating the second cylinder of the engine to admit gases from the intake manifold into the second cylinder and retaining the admitted gases within the second cylinder for a period before exhausting the admitted gases into the intake manifold; and

    adjusting an operating parameter of the second cylinder to vary a timing of said auto-ignition by the first cylinder.

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