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DUCTED COMBUSTION CHAMBER FOR DIRECT INJECTION ENGINES AND METHOD

  • US 20120186555A1
  • Filed: 01/26/2011
  • Published: 07/26/2012
  • Est. Priority Date: 01/26/2011
  • Status: Active Grant
First Claim
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1. An internal combustion engine, comprising:

  • an engine block having at least one cylinder bore;

    a cylinder head having a flame deck surface disposed at one end of the cylinder bore;

    a piston connected to a rotatable crankshaft and configured to reciprocate within the cylinder bore, the piston having a piston crown portion facing the flame deck surface such that a combustion chamber is defined within the cylinder bore and between the piston crown and the flame deck surface;

    a fuel injector having a nozzle tip disposed in fluid communication with the combustion chamber, the nozzle tip having at least one nozzle opening configured to inject a fuel jet into the combustion chamber and along a fuel jet centerline;

    at least one duct defined in the combustion chamber between the piston crown and the flame deck surface, the at least one duct having a generally rectangular cross section and extending in a radial direction relative to the cylinder bore substantially along a segment of the fuel jet centerline.

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