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Ducted fuel injection with ignition assist

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United States Patent

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10,138,855
November 27, 2018
View the Complete Patent at the US Patent & Trademark Office
Ducted Fuel Injection for Soot Reduction Next-Generation Automotive
Various technologies presented herein relate to enhancing mixing inside a combustion chamber to form one or more locally premixed mixtures comprising fuel and charge-gas to enable minimal, or no, generation of soot and/or other undesired emissions during ignition and subsequent combustion of the locally premixed mixtures. To enable sufficient mixing of the fuel and charge-gas, a jet of fuel can be directed to pass through a bore of a duct causing charge-gas to be drawn into the bore creating turbulence to mix the fuel and the drawn charge-gas. The duct can be located proximate to an opening in a tip of a fuel injector. An ignition assist component can be located downstream of the duct to facilitate ignition of the fuel/charge-gas mixture.
15/ 364,002
November 29, 2016
1/1
F02M 57/00 (20060101)F02M 61/14 (20060101)F02P 19/02 (20060101)F02P 23/02 (20060101)F02M 61/18 (20060101)F02P 23/04 (20060101)
STATEMENT OF GOVERNMENTAL INTEREST This invention was developed under contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.