Ducted fuel injection
| DWPI Title: Combustion system comprises a fuel injector that is provided with a first opening, where the fuel is injected through the first opening into a combustion chamber, and duct is formed with a hollow tube, and aligned to exit the fuel |
| 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 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. The various technologies presented herein can be utilized in a number of combustion systems, such as compression-ignition (CI) reciprocating engines, spark-ignition (SI) reciprocating engines, gas-turbine (GT) engines, burners and boilers, wellhead/refinery flaring, etc. |
| Use: Combustion system, such as a compression-ignition reciprocating engine, spark-ignition reciprocating engine, gas-turbine engine and burner apparatus, boiler apparatus. |
| Advantage: The combustion system comprises a fuel injector that is provided with a first opening, where the fuel is injected through the first opening into a combustion chamber, and hence enhances the engine efficiency, and reduces the engine emissions. |
| Novelty: The combustion system comprises a fuel injector (140) that is provided with an opening (146), where the fuel is injected through the opening into a combustion chamber (105). A duct is formed with a hollow tube, and aligned to exit the fuel through the first opening of the fuel injector into the combustion chamber. An apparatus is configured to burn flammable gas in a gas flare operation. |
| Filed: 11/29/2016 |
| Application Number: US15363966A |
| Tech ID: SD 13846.1 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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