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Title: Ducted fuel injection

Abstract

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 with low peak fuel to charge-gas ratios to enable minimal, or no, generation of soot and 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. The duct can comprise of one or more holes along its length to enable charge-gas to be drawn into the bore, and further, the duct can cool the fuel and/or charge-gas prior to combustion.

Inventors:
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1425871
Patent Number(s):
9909549
Application Number:
14/789,782
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02M - SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Jul 01
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Mueller, Charles J. Ducted fuel injection. United States: N. p., 2018. Web.
Mueller, Charles J. Ducted fuel injection. United States.
Mueller, Charles J. Tue . "Ducted fuel injection". United States. https://www.osti.gov/servlets/purl/1425871.
@article{osti_1425871,
title = {Ducted fuel injection},
author = {Mueller, Charles J.},
abstractNote = {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 with low peak fuel to charge-gas ratios to enable minimal, or no, generation of soot and 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. The duct can comprise of one or more holes along its length to enable charge-gas to be drawn into the bore, and further, the duct can cool the fuel and/or charge-gas prior to combustion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {3}
}

Works referenced in this record:

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patent, March 1918


Fluid Distributor
patent, December 1940


Diesel Engine Injector
patent, September 1942


Nozzle
patent, January 1952


Stratified Charge Gas Engine
patent, February 1969


Liquid Fuel Burner
patent, February 1972


Burner Assembly for Providing Reduced Emission of Air Pollutant
patent, January 1974


Fuel injection system
patent, January 1978


Exothermic injector adapter
patent, January 1981


Ignition-assisted fuel combustion system
patent, October 1985


Gas turbine engine combustion chamber with oxidizer intake flow control
patent, August 1993


Fuel-gas mixture injector with a downstream mixing conduit
patent, March 1994


Burner assembly with fuel pre-mix and combustion temperature controls
patent, February 1995


Gas flare
patent, March 1996


Low emissions burner
patent, November 1996


Laser type engine ignition device
patent, February 2010


Variable geometry ejector
patent, March 2012


Direct injection method and apparatus for low NOx combustion of high hydrogen fuels
patent, October 2014


Anti-detonation fuel delivery system
patent-application, October 2004


Spray hole profile
patent-application, January 2009


Injector Nozzle
patent-application, February 2009


Fuel injection tip
patent-application, October 2009


Ducted Combustion Chamber for Direct Injection Engines and Method
patent-application, July 2012


Ducted Combustion Systems Utilizing Adjustable Length Ducts
patent-application, October 2016


Ducted Combustion Systems Utilizing Tubular Ducts
patent-application, October 2016