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Afterburner

About: Afterburner is a research topic. Over the lifetime, 811 publications have been published within this topic receiving 5944 citations.


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Patent
06 Oct 1993
TL;DR: In this paper, the afterburner for a turbofan engine is disclosed having a plurality of connecting arms connecting the inner wall to the outer wall, where each of the connecting arms defines an air chamber, an inlet communicating with the main air bypass passageway and a pluralityof outlets communicating with after-burner chamber.
Abstract: An afterburner for a turbofan engine is disclosed having a plurality of connecting arms connecting the inner wall to the outer wall wherein each of the connecting arms defines an air chamber, an inlet communicating with the main air bypass passageway and a plurality of outlets communicating with the afterburner chamber. The plurality of connecting arms are distributed generally radially about the longitudinal axis of the engine and serve to distribute a portion of the bypass air into the afterburner chamber. The bypass air is further distributed into the afterburner chamber through a plurality of flame holders extending radially inwardly from the outer wall towards the longitudinal axis. Each of the flame holders also defines an air chamber, an inlet communicating with the main air bypass passageway and a plurality of air outlets. The flame holders may also be distributed in a radial array about the longitudinal axis and are interposed between adjacent connecting arms.

37 citations

Patent
19 Mar 1969
TL;DR: An exhaust gas processing device for use with internal combustion engines which is generally of the afterburner type, including a cylindrical reactor in which the unburned hydrocarbons are consumed, is described in this article.
Abstract: An exhaust gas processing device for use with internal combustion engines which is generally of the afterburner type, including a cylindrical reactor in which the unburned hydrocarbons are consumed and an exhaust pipe connected near one end of the cylindrical reactor in such manner as to direct the flow of gases tangentially into the reactor to produce a vortical flow pattern to assure adiabatic heating and mixing with air from outside the reactor chamber Various arrangements are described for igniting the mixture in the chamber, for controlling the effective area of the exhaust gas inlet to the reactor and the air inlet to the reactor, for controlling the reactor outlet including additional air mixing means, for compounding the reactors and for using a plurality of reactors for multicylinder engines Arrangements are also shown for utilizing the heat radiating from the sides of the reactor to heat the incoming air and for conserving the heat by means of an insulating layer or a labyrinth structure which redirects the exhaust flow back across the outside of the reactor cylinder A still further embodiment utilizes a helical member within the reactor chamber to direct the flow in a vortical pattern which also is effective to reduce sound output

35 citations

Patent
04 May 1994
TL;DR: In this article, a small energy efficient afterburner for oxidizing the byproducts of incomplete combustion is disclosed, where gases are forced into a firebox, where a heating element maintains a temperature above the flash point for the more common and undesirable pollutants.
Abstract: A small energy efficient afterburner for oxidizing the byproducts of incomplete combustion is disclosed. Gases are forced into a firebox, where a heating element maintains a temperature above the flash point for the more common and undesirable pollutants. Typical temperatures are 500° C. to 800° C. for burning hydrocarbons coming from internal combustion engines or wood stoves. After gases pass through the firebox, they are forced into a chamber adjacent to the firebox intake, so that heat energy may be transferred to the incoming gases, thereby greatly increasing the thermal efficiency of the device. Greater efficiencies are achieved by putting a catalytic surface in the firebox, and by insulating the afterburner exterior.

34 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202130
202037
201926
201834
201734
201619