US3904119A - Air-fuel spray nozzle - Google Patents

Air-fuel spray nozzle Download PDF

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Publication number
US3904119A
US3904119A US422094A US42209473A US3904119A US 3904119 A US3904119 A US 3904119A US 422094 A US422094 A US 422094A US 42209473 A US42209473 A US 42209473A US 3904119 A US3904119 A US 3904119A
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United States
Prior art keywords
fuel
housing
air
vanes
nozzle
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Expired - Lifetime
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US422094A
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Sidney C Watkins
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Avco Corp
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Avco Corp
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/10—Spray pistols; Apparatus for discharge producing a swirling discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
    • B05B7/0466—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber with means for deflecting the central liquid flow towards the peripheral gas flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
    • F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
    • F23D11/105—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet at least one of the fluids being submitted to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/38—Nozzles; Cleaning devices therefor

Definitions

  • a spray nozzle for obtaining an air-fuel mixture within the confines of the nozzle.
  • Fuel is directed radially outwardly from a central housing into a helical passage about the central housing. Air passing in the helical passage between the central housing and outer wall mixes with the fuel so that a uniform mixture of fuel and air exits from the nozzle into the surrounding area.
  • This invention relates generally to fuel atomizing nozzles, but more particularly to air-fuel spray nozzles to provide a uniformly atomized air-fuel mixture.
  • a further object of this invention is to provide an airfuel spray nozzle which will atomize the fuel for mixture with the air.
  • a still further object of this invention is to provide an air-fuel spray nozzle which provides a uniformly distributed air-fuel mixture exiting from the nozzle.
  • This invention provides an improved air-fuel spray nozzle having particular utility in gas turbine engines.
  • the nozzle directs fuel radially outwardly from a central housing into helical passages formed between the central housing and outer wall. Air passing through the helical passages mixes with the fuel therein such that a uniformly distributed air-fuel mixture exits from the nozzle into the surrounding area. Means are provided to equalize and insure that an equal mixture occurs.
  • FIG. 2 is an enlarged cross-sectional view of the spray nozzle of this invention
  • FIG. 3 is a sectional view taken along line 33 of DESCRIPTION OF ILLUSTRATED EMBODIMENT
  • FIG. 1 of the drawings which illustrates one exemplary embodiment of the improved air-fuel spray nozzle of this invention, which is designated generally by the reference numeral 10.
  • the nozzle 10 is mounted within an air passage 11 of a typical combustor generally designated as 13, the combustor 13 being mounted within the primary air flow path 15 of a gas turbine engine upstream of the compressor turbine stage.
  • the nozzle 10 comprises a central portion or housing 12.
  • An outer wall or cap 14 is secured coaxially with the central housing 12 and is supported thereabout by a plurality of helically extending vanes 16.
  • the passageways defined by the respective vanes 16 and outer wall 14 are open at each end thereby providing an air passageway therethrough.
  • Fuel is supplied to the nozzle 10 through a suitable line 18 which is secured by suitable means such as brazing or the like, to the central housing 12.
  • the housing 12 includes a restrictor 20 between the fuel line 18 and an open fuel chamber 22.
  • a cap or plug 24 seals the one end of the chamber 22.
  • Extending radially outwardly from the fuel chamber 22 and extending through the housing 12 is a plurality of apertures or bores 26.
  • the bores 26 provide communication between the fuel chamber 22 and the helical air passageways. As particularly seen in FIG. 3, a bore 26 is in communication with each of the respectively helical air passageways.
  • the restrictor 20 When fuel is delivered to the nozzle 10, the restrictor 20 equalizes such fuel supplied and meters the amount of fuel to the fuel chamber 22. Fuel is transmitted radially outwardly through the respective bores 26 into each passageway defined by the respective vanes 16. The vanes form a helical passageway through the nozzle 10 such that air passing therethrough is caused to move in a rotary or screw fashion. The fuel exiting from the bores 26 is atomized and mixed with the air moving through the respectively helical passageways thereby forming a swirling ring of air-fuel mixture in the space defined by the end of the housing 12 and the inwardly projecting lip 28 of the wall 14. Thus, an air-fuel mixture is discharged from the orifice formed by the lip 28 into the turbulent air in the passage 11 (FIG. 1) downstream of the nozzle where further fuel break up and mixing occur.
  • the nozzle provides for an initial mixing of the air and fuel within the confines of the nozzle itself.
  • the air-fuel mixture that is discharged from the nozzle is less likely to impinge on the walls of the combustor and is more easily mixed with the added air in the airstream.
  • a spray nozzle for mixing fuel and air therein, said nozzle comprising:
  • a cylindrical housing having an inner chamber on the axis thereof, a plurality of circumferentially spaced helical vanes radially extending outwardly from said housing, said vanes extending over essentially the entire length of said housing, said chamber having a fuel inlet and a plurality of fuel outlets, each of said fuel outlets extending radially through said whereby all of said fuel flows radially into said helihousing into the spaces between said vanes; l passages; d a cylindrical wall mounted coaxially with said cylinmeans f fl i i through i helical passages drical housing Said Wan being Spaced from said whereby all of said fuel supplied to said chamber is housing by said vanes, said vanes contacting said 5 housing throughout the entire length of said vanes to provide a plurality of helical passages, each of said fuel outlets communicating with a respective passage, said housing having an air inlet at one end and an outlet at the other end, the outlet end of 1 i i i

Abstract

A spray nozzle is disclosed for obtaining an air-fuel mixture within the confines of the nozzle. Fuel is directed radially outwardly from a central housing into a helical passage about the central housing. Air passing in the helical passage between the central housing and outer wall mixes with the fuel so that a uniform mixture of fuel and air exits from the nozzle into the surrounding area.

Description

United States Patent [191 Watkins [4 1 Sept. 9, 1975 AIR-FUEL SPRAY NOZZLE [75] Inventor: Sidney C. Watkins, Bridgeport,
Conn.
[73] Assignec: Avco Corporation, Stratford, Conn.
[22] Filed? Dec. 5, 1973 [21] App]. No.: 422,094
[52] US. Cl 239/405; 60/39.74 R; 239/431 [51] Int. Cl. B0513 7/10; B05B 7/06 [58] Field of Search 239/399, 403, 405, 406,
[56] References Cited UNITED STATES PATENTS 7/1924 Wright 239/430 X 7/1936 Tracy 239/405 X 2,682,302 6/1954 Cote 60/3974 R 2,855,033 10/1958 Furczyk.. 239/406 2,878,065 3/1959 Watkins 239/405 X 3,608,831 9/1971 Accrington 239/406 3,713,588 1/1973 Sharpe 239/406 X 3,735,778 5/1973 Garnier 239/425 X 3,790,086 2/1974 Masai 239/406 Primary ExaminerM. Henson Wood, Jr.
Assistant Examiner-Andres Kashnikow Attorney, Agent, or Firm-Charles M. Hogan; lrwin P. Garfinkle; Eugene C. Goodale 57 ABSTRACT A spray nozzle is disclosed for obtaining an air-fuel mixture within the confines of the nozzle. Fuel is directed radially outwardly from a central housing into a helical passage about the central housing. Air passing in the helical passage between the central housing and outer wall mixes with the fuel so that a uniform mixture of fuel and air exits from the nozzle into the surrounding area.
2 Claims, 4 Drawing Figures PATENTED SEP 91975 FIG.4
AIR-FUEL SPRAY NOZZLE BACKGROUND OF THE INVENTION This invention relates generally to fuel atomizing nozzles, but more particularly to air-fuel spray nozzles to provide a uniformly atomized air-fuel mixture.
The use of air-spray fuel injection systems is widely known particularly in the internal combustion engine field, where it is important to insure that finely atomized fuel, at the correct air-fuel ratio, is supplied to the engine for ignition. Gas turbine engines, however, have similar requirements for ignition, but somewhat less stringent requirements after ignition is achieved. In one particular type of combustor it is necessary to supply a fuel-air mixture of substantially constant richness ratio having a uniform droplet size into the primary zone through an annular duct. The means of fuel atomization must not allow any of the fuel droplets produced to wet the walls of the duct, since wet walls provide big drops that will sooner or later enter the combustor and pass through it, largely unburnt. All prior type pressure atomizing nozzles can achieve the level of atomization required, but some fuel droplets will possess sufficient momentum to pass through the airstream, and impinge on the duct walls. Streaky sprays, normally acceptable, contain large drops which cannot follow the airstream, and either impinge on the duct walls or enter the primary zone and burn poorly, or not at all.
Accordingly, it is the object of this invention to provide an air-fuel spray nozzle which permits the air and fuel to be mixed within the space of the nozzle.
A further object of this invention is to provide an airfuel spray nozzle which will atomize the fuel for mixture with the air.
A still further object of this invention is to provide an air-fuel spray nozzle which provides a uniformly distributed air-fuel mixture exiting from the nozzle.
SUMMARY OF THE INVENTION This invention provides an improved air-fuel spray nozzle having particular utility in gas turbine engines. The nozzle directs fuel radially outwardly from a central housing into helical passages formed between the central housing and outer wall. Air passing through the helical passages mixes with the fuel therein such that a uniformly distributed air-fuel mixture exits from the nozzle into the surrounding area. Means are provided to equalize and insure that an equal mixture occurs.
Other objects, details, uses and advantages of this invention will become apparent as the following description of one exemplary embodiment thereof presented in the accompanying drawings proceeds.
BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings show a present exemplary embodiment of this invention in which:
FIG. 1 is a partial cross-sectional view of a gas turbine combustor incorporating the nozzle of this invention;
FIG. 2 is an enlarged cross-sectional view of the spray nozzle of this invention;
FIG. 3 is a sectional view taken along line 33 of DESCRIPTION OF ILLUSTRATED EMBODIMENT Reference is now made to FIG. 1 of the drawings which illustrates one exemplary embodiment of the improved air-fuel spray nozzle of this invention, which is designated generally by the reference numeral 10. The nozzle 10 is mounted within an air passage 11 of a typical combustor generally designated as 13, the combustor 13 being mounted within the primary air flow path 15 of a gas turbine engine upstream of the compressor turbine stage.
As particularly seen in FIGS. 2-4, the nozzle 10 comprises a central portion or housing 12. An outer wall or cap 14 is secured coaxially with the central housing 12 and is supported thereabout by a plurality of helically extending vanes 16. The passageways defined by the respective vanes 16 and outer wall 14 are open at each end thereby providing an air passageway therethrough.
Fuel is supplied to the nozzle 10 through a suitable line 18 which is secured by suitable means such as brazing or the like, to the central housing 12. The housing 12 includes a restrictor 20 between the fuel line 18 and an open fuel chamber 22. A cap or plug 24 seals the one end of the chamber 22. Extending radially outwardly from the fuel chamber 22 and extending through the housing 12 is a plurality of apertures or bores 26. The bores 26 provide communication between the fuel chamber 22 and the helical air passageways. As particularly seen in FIG. 3, a bore 26 is in communication with each of the respectively helical air passageways.
When fuel is delivered to the nozzle 10, the restrictor 20 equalizes such fuel supplied and meters the amount of fuel to the fuel chamber 22. Fuel is transmitted radially outwardly through the respective bores 26 into each passageway defined by the respective vanes 16. The vanes form a helical passageway through the nozzle 10 such that air passing therethrough is caused to move in a rotary or screw fashion. The fuel exiting from the bores 26 is atomized and mixed with the air moving through the respectively helical passageways thereby forming a swirling ring of air-fuel mixture in the space defined by the end of the housing 12 and the inwardly projecting lip 28 of the wall 14. Thus, an air-fuel mixture is discharged from the orifice formed by the lip 28 into the turbulent air in the passage 11 (FIG. 1) downstream of the nozzle where further fuel break up and mixing occur.
It is thus seen that the nozzle provides for an initial mixing of the air and fuel within the confines of the nozzle itself. The air-fuel mixture that is discharged from the nozzle is less likely to impinge on the walls of the combustor and is more easily mixed with the added air in the airstream.
Accordingly, it is seen that the objectives hereinbefore set forth have been accomplished.
While a present exemplary embodiment of this invention has been illustrated and described, it will be recognized that this invention may be otherwise variously embodied and practiced by those skilled in the art.
What is claimed is:
l. A spray nozzle for mixing fuel and air therein, said nozzle comprising:
a cylindrical housing having an inner chamber on the axis thereof, a plurality of circumferentially spaced helical vanes radially extending outwardly from said housing, said vanes extending over essentially the entire length of said housing, said chamber having a fuel inlet and a plurality of fuel outlets, each of said fuel outlets extending radially through said whereby all of said fuel flows radially into said helihousing into the spaces between said vanes; l passages; d a cylindrical wall mounted coaxially with said cylinmeans f fl i i through i helical passages drical housing Said Wan being Spaced from said whereby all of said fuel supplied to said chamber is housing by said vanes, said vanes contacting said 5 housing throughout the entire length of said vanes to provide a plurality of helical passages, each of said fuel outlets communicating with a respective passage, said housing having an air inlet at one end and an outlet at the other end, the outlet end of 1 i i i l 1 being f d i a radially by said restrictor to insure uniform distribution of fuel inwardly projecting lip; to the chamber. means supplying fuel to said chamber under pressure,
mixed with air moving through said passages, and mixed fuel and air exits from said outlet.
2. The nozzle as set forth in claim 1 further comprising restrictor means in the inlet end of said central 0 housing wherein fuel passing therethrough is metered

Claims (2)

1. A spray nozzle for mixing fuel and air therein, said nozzle comprising: a cylindrical housing having an inner chamber on the axis thereof, a plurality of circumferentially spaced helical vanes radially extending outwardly from said housing, said vanes extending over essentially the entire length of said housing, said chamber having a fuel inlet and a plurality of fuel outlets, each of said fuel outlets extending radially through said housing into the spaces between said vanes; a cylindrical wall mounted coaxially with said cylindrical housing, said wall being spaced from said housing by said vanes, said vanes contacting said housing throughout the entire length of said vaNes to provide a plurality of helical passages, each of said fuel outlets communicating with a respective passage, said housing having an air inlet at one end and an outlet at the other end, the outlet end of said cylindrical wall being formed with a radially inwardly projecting lip; means supplying fuel to said chamber under pressure, whereby all of said fuel flows radially into said helical passages; and means for flowing air through said helical passages whereby all of said fuel supplied to said chamber is mixed with air moving through said passages, and mixed fuel and air exits from said outlet.
2. The nozzle as set forth in claim 1 further comprising restrictor means in the inlet end of said central housing wherein fuel passing therethrough is metered by said restrictor to insure uniform distribution of fuel to the chamber.
US422094A 1973-12-05 1973-12-05 Air-fuel spray nozzle Expired - Lifetime US3904119A (en)

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846315A1 (en) * 1978-10-24 1980-05-08 Motan Gmbh PORTABLE DEVICE FOR SPRAYING
US4587809A (en) * 1981-06-15 1986-05-13 Hitachi, Ltd. Premixing swirling burner
US4609150A (en) * 1983-07-19 1986-09-02 United Technologies Corporation Fuel nozzle for gas turbine engine
US4614490A (en) * 1985-04-01 1986-09-30 Exxon Research And Engineering Co. Method and apparatus for atomizing fuel
US4773597A (en) * 1985-08-29 1988-09-27 Veb Institut Fuer Getreideverarbeitung Wtoez Des Veb Kombinat Nahrungsmittel Und Kaffee Und Der Backwarenindustire Nozzle for spraying liquids
US4967561A (en) * 1982-05-28 1990-11-06 Asea Brown Boveri Ag Combustion chamber of a gas turbine and method of operating it
WO1991009217A1 (en) * 1989-12-20 1991-06-27 Sundstrand Corporation Fuel injector for a turbine engine
DE9111204U1 (en) * 1991-09-10 1991-11-07 Stahl, Werner, 7770 Ueberlingen, De
US5101634A (en) * 1989-12-20 1992-04-07 Sundstrand Corporation Fuel injector for a turbine engine
US5101633A (en) * 1989-04-20 1992-04-07 Asea Brown Boveri Limited Burner arrangement including coaxial swirler with extended vane portions
US5251823A (en) * 1992-08-10 1993-10-12 Combustion Tec, Inc. Adjustable atomizing orifice liquid fuel burner
US5444982A (en) * 1994-01-12 1995-08-29 General Electric Company Cyclonic prechamber with a centerbody
DE10061170A1 (en) * 2000-12-03 2002-08-01 Juergen G Schatz Method and device for accelerating a Newtonian fluid in pipes
US6502399B2 (en) 1997-09-10 2003-01-07 Mitsubishi Heavy Industries, Ltd. Three-dimensional swirler in a gas turbine combustor
EP2402652A1 (en) * 2010-07-01 2012-01-04 Siemens Aktiengesellschaft Burner
US20120137695A1 (en) * 2010-12-01 2012-06-07 General Electric Company Fuel nozzle with gas only insert
US20140070143A1 (en) * 2011-05-10 2014-03-13 Lurgi Gmbh Process and reactor for producing synthesis gas
US20140238026A1 (en) * 2013-02-27 2014-08-28 General Electric Company Fuel nozzle for reducing modal coupling of combustion dynamics
US20150273410A1 (en) * 2005-04-08 2015-10-01 Huntsman International Llc Spiral Mixer Nozzle and Method for Mixing Two or More Fluids and Process for Manufacturing Isocyanates
US20160215982A1 (en) * 2015-01-26 2016-07-28 Delavan Inc Flexible swirlers
FR3059047A1 (en) * 2016-11-21 2018-05-25 Safran Helicopter Engines COMBUSTION CHAMBER INJECTOR FOR TURBOMACHINE AND METHOD FOR MANUFACTURING THE SAME
US10995669B2 (en) * 2018-05-30 2021-05-04 Doosan Heavy Industries & Construction Co., Ltd. Nozzle for combustors and gas turbine including the same
US20220082257A1 (en) * 2020-09-11 2022-03-17 Raytheon Technologies Corporation Fuel injector assembly for a turbine engine
CN115917215A (en) * 2020-07-17 2023-04-04 西门子能源全球有限两合公司 Premixing injector assembly in a gas turbine engine

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1501509A (en) * 1923-09-17 1924-07-15 Edgar R Wright Oil burner
US2046592A (en) * 1931-04-10 1936-07-07 Vilbiss Co Spray head
US2682302A (en) * 1950-02-21 1954-06-29 Willcord W Cote Atomizing type oil burner
US2855033A (en) * 1955-10-03 1958-10-07 Selas Corp Of America Industrial gas burner
US2878065A (en) * 1956-07-23 1959-03-17 Lucas Industries Ltd Liquid fuel discharge nozzles
US3608831A (en) * 1968-07-18 1971-09-28 Lucas Industries Ltd Liquid atomizing devices
US3713588A (en) * 1970-11-27 1973-01-30 Gen Motors Corp Liquid fuel spray nozzles with air atomization
US3735778A (en) * 1970-07-17 1973-05-29 M Garnier Driving of fluids
US3790086A (en) * 1971-05-24 1974-02-05 Hitachi Ltd Atomizing nozzle

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1501509A (en) * 1923-09-17 1924-07-15 Edgar R Wright Oil burner
US2046592A (en) * 1931-04-10 1936-07-07 Vilbiss Co Spray head
US2682302A (en) * 1950-02-21 1954-06-29 Willcord W Cote Atomizing type oil burner
US2855033A (en) * 1955-10-03 1958-10-07 Selas Corp Of America Industrial gas burner
US2878065A (en) * 1956-07-23 1959-03-17 Lucas Industries Ltd Liquid fuel discharge nozzles
US3608831A (en) * 1968-07-18 1971-09-28 Lucas Industries Ltd Liquid atomizing devices
US3735778A (en) * 1970-07-17 1973-05-29 M Garnier Driving of fluids
US3713588A (en) * 1970-11-27 1973-01-30 Gen Motors Corp Liquid fuel spray nozzles with air atomization
US3790086A (en) * 1971-05-24 1974-02-05 Hitachi Ltd Atomizing nozzle

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846315A1 (en) * 1978-10-24 1980-05-08 Motan Gmbh PORTABLE DEVICE FOR SPRAYING
US4587809A (en) * 1981-06-15 1986-05-13 Hitachi, Ltd. Premixing swirling burner
US4967561A (en) * 1982-05-28 1990-11-06 Asea Brown Boveri Ag Combustion chamber of a gas turbine and method of operating it
US4609150A (en) * 1983-07-19 1986-09-02 United Technologies Corporation Fuel nozzle for gas turbine engine
US4614490A (en) * 1985-04-01 1986-09-30 Exxon Research And Engineering Co. Method and apparatus for atomizing fuel
US4773597A (en) * 1985-08-29 1988-09-27 Veb Institut Fuer Getreideverarbeitung Wtoez Des Veb Kombinat Nahrungsmittel Und Kaffee Und Der Backwarenindustire Nozzle for spraying liquids
US5101633A (en) * 1989-04-20 1992-04-07 Asea Brown Boveri Limited Burner arrangement including coaxial swirler with extended vane portions
US5101634A (en) * 1989-12-20 1992-04-07 Sundstrand Corporation Fuel injector for a turbine engine
WO1991009217A1 (en) * 1989-12-20 1991-06-27 Sundstrand Corporation Fuel injector for a turbine engine
DE9111204U1 (en) * 1991-09-10 1991-11-07 Stahl, Werner, 7770 Ueberlingen, De
US5224651A (en) * 1991-09-10 1993-07-06 Werner Stahl Apparatus for atomizing an active substance
US5251823A (en) * 1992-08-10 1993-10-12 Combustion Tec, Inc. Adjustable atomizing orifice liquid fuel burner
US5444982A (en) * 1994-01-12 1995-08-29 General Electric Company Cyclonic prechamber with a centerbody
US5540056A (en) * 1994-01-12 1996-07-30 General Electric Company Cyclonic prechamber with a centerbody for a gas turbine engine combustor
US6502399B2 (en) 1997-09-10 2003-01-07 Mitsubishi Heavy Industries, Ltd. Three-dimensional swirler in a gas turbine combustor
DE10061170A1 (en) * 2000-12-03 2002-08-01 Juergen G Schatz Method and device for accelerating a Newtonian fluid in pipes
US9498757B2 (en) * 2005-04-08 2016-11-22 Huntsman International Llc Spiral mixer nozzle and method for mixing two or more fluids and process for manufacturing isocyanates
US20150273410A1 (en) * 2005-04-08 2015-10-01 Huntsman International Llc Spiral Mixer Nozzle and Method for Mixing Two or More Fluids and Process for Manufacturing Isocyanates
WO2012001141A1 (en) * 2010-07-01 2012-01-05 Siemens Aktiengesellschaft Burner assembly
JP2013529771A (en) * 2010-07-01 2013-07-22 シーメンス アクチエンゲゼルシヤフト Burner equipment
EP2402652A1 (en) * 2010-07-01 2012-01-04 Siemens Aktiengesellschaft Burner
US20120137695A1 (en) * 2010-12-01 2012-06-07 General Electric Company Fuel nozzle with gas only insert
CN102537966A (en) * 2010-12-01 2012-07-04 通用电气公司 Fuel nozzle with gas only insert
US20140070143A1 (en) * 2011-05-10 2014-03-13 Lurgi Gmbh Process and reactor for producing synthesis gas
US9561483B2 (en) * 2011-05-10 2017-02-07 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Process and reactor for producing synthesis gas
US9217373B2 (en) * 2013-02-27 2015-12-22 General Electric Company Fuel nozzle for reducing modal coupling of combustion dynamics
JP2014163664A (en) * 2013-02-27 2014-09-08 General Electric Co <Ge> Fuel nozzle for reducing modal coupling of combustion dynamics
US20140238026A1 (en) * 2013-02-27 2014-08-28 General Electric Company Fuel nozzle for reducing modal coupling of combustion dynamics
US20160215982A1 (en) * 2015-01-26 2016-07-28 Delavan Inc Flexible swirlers
US9939155B2 (en) * 2015-01-26 2018-04-10 Delavan Inc. Flexible swirlers
US10584878B2 (en) 2015-01-26 2020-03-10 Delavan Inc. Flexible swirlers
FR3059047A1 (en) * 2016-11-21 2018-05-25 Safran Helicopter Engines COMBUSTION CHAMBER INJECTOR FOR TURBOMACHINE AND METHOD FOR MANUFACTURING THE SAME
US10995669B2 (en) * 2018-05-30 2021-05-04 Doosan Heavy Industries & Construction Co., Ltd. Nozzle for combustors and gas turbine including the same
CN115917215A (en) * 2020-07-17 2023-04-04 西门子能源全球有限两合公司 Premixing injector assembly in a gas turbine engine
US20220082257A1 (en) * 2020-09-11 2022-03-17 Raytheon Technologies Corporation Fuel injector assembly for a turbine engine
US11421883B2 (en) * 2020-09-11 2022-08-23 Raytheon Technologies Corporation Fuel injector assembly with a helical swirler passage for a turbine engine

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