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Title: Liquid fuel spraybar

Abstract

This patent describes radial spraybars for distributing a varying flow of volatile liquid fuel over a stream of relatively hot oxidizing gas flowing in a cylindrical thrust augmentor, the gas having a temperature above the liquid fuel vaporization temperature, comprising: means for discharging the liquid fuel only in a coaxially central pilot region of the gas stream, including an elongated, heat conducting housing extending radially across the hot gas stream and having fuel discharge openings therein, the housing having a first, radially inward closed end located within the pilot region and a second, radially outward end, a first fuel conduit disposed coaxially within the housing for conducting the flow of liquid fuel longitudinally through the housing from the second end thereof and discharging the conducted fuel adjacent the housing first end into an annular volume defined between the first fuel conduit and the housing, wherein, the first fuel conduit and the annular volume each further define a cross-sectional flow area measured transversely with respect to the elongated housing, and wherein the annular cross-sectional flow area is no greater than the first fuel conduit cross-sectional flow area.

Inventors:
Publication Date:
OSTI Identifier:
7009369
Patent Number(s):
US 4751815
Assignee:
United Technologies Corp., Hartford, CT
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 29 Aug 1986
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; FUEL SYSTEMS; SPRAYS; AUTOMOTIVE FUELS; DESIGN; DUCTS; GAS FLOW; HEAT EXCHANGERS; INTERNAL COMBUSTION ENGINES; LIQUID FUELS; ENGINES; FLUID FLOW; FUELS; HEAT ENGINES; 330100* - Internal Combustion Engines

Citation Formats

Moore, G W. Liquid fuel spraybar. United States: N. p., 1988. Web.
Moore, G W. Liquid fuel spraybar. United States.
Moore, G W. 1988. "Liquid fuel spraybar". United States.
@article{osti_7009369,
title = {Liquid fuel spraybar},
author = {Moore, G W},
abstractNote = {This patent describes radial spraybars for distributing a varying flow of volatile liquid fuel over a stream of relatively hot oxidizing gas flowing in a cylindrical thrust augmentor, the gas having a temperature above the liquid fuel vaporization temperature, comprising: means for discharging the liquid fuel only in a coaxially central pilot region of the gas stream, including an elongated, heat conducting housing extending radially across the hot gas stream and having fuel discharge openings therein, the housing having a first, radially inward closed end located within the pilot region and a second, radially outward end, a first fuel conduit disposed coaxially within the housing for conducting the flow of liquid fuel longitudinally through the housing from the second end thereof and discharging the conducted fuel adjacent the housing first end into an annular volume defined between the first fuel conduit and the housing, wherein, the first fuel conduit and the annular volume each further define a cross-sectional flow area measured transversely with respect to the elongated housing, and wherein the annular cross-sectional flow area is no greater than the first fuel conduit cross-sectional flow area.},
doi = {},
url = {https://www.osti.gov/biblio/7009369}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 21 00:00:00 EDT 1988},
month = {Tue Jun 21 00:00:00 EDT 1988}
}