US20160238255A1 - Enhanced turbulent mixing - Google Patents

Enhanced turbulent mixing Download PDF

Info

Publication number
US20160238255A1
US20160238255A1 US15/044,912 US201615044912A US2016238255A1 US 20160238255 A1 US20160238255 A1 US 20160238255A1 US 201615044912 A US201615044912 A US 201615044912A US 2016238255 A1 US2016238255 A1 US 2016238255A1
Authority
US
United States
Prior art keywords
bore
flow
inlet
intermediate portion
recited
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/044,912
Other languages
English (en)
Inventor
Jason A. Ryon
Philip E. Buelow
Lev A. Prociw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Collins Engine Nozzles Inc
Original Assignee
Delavan Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delavan Inc filed Critical Delavan Inc
Priority to US15/044,912 priority Critical patent/US20160238255A1/en
Assigned to DELAVAN INC reassignment DELAVAN INC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BUELOW, PHILIP E., PROCIW, LEV A., Ryon, Jason A.
Publication of US20160238255A1 publication Critical patent/US20160238255A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/22—Fuel supply systems
    • F02C7/232—Fuel valves; Draining valves or systems
    • 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
    • F23D11/106—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 at the burner outlet
    • F23D11/107—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 at the burner outlet at least one of both being subjected to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F23R3/10—Air inlet arrangements for primary air
    • F23R3/12—Air inlet arrangements for primary air inducing a vortex
    • F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
    • F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines

Definitions

  • the present disclosure relates to mixers, and more particularly to fuel mixers such as used in atomizers and injectors for gas turbine engines.
  • Mixers are used in many applications where air or some other gas is used to mix and distribute a substance.
  • a particular mixer known in the industry as a drilled hole swirler is used often in fuel injectors for gas turbine combustors to mix and distribute the fuel and air.
  • the drilled holes through the air cap are arranged in a pattern which best fits the combustor geometry in order to optimize the flame distribution throughout the combustor.
  • the drilled holes are cylindrical in nature. In some instances, it has been found that modifying the geometry at the entrance to the drilled hole can increase the discharge coefficient and decrease part-to-part variability of these features, as taught in U.S. Patent Application Publication No. 2014/0166143, which is incorporated by reference herein in its entirety.
  • a flow directing apparatus for directing fluid flowing therethrough includes a flow body defining an upstream facing inlet surface and an opposed downstream facing outlet surface with a bore defined through the flow body from the inlet surface to the outlet surface.
  • the bore is configured to direct fluid flowing therethrough and includes an inlet portion of the bore extending in a downstream direction from an inlet where the bore meets the inlet surface.
  • An intermediate portion of the bore extends in a downstream direction from the inlet portion of the bore.
  • a backstep portion of the bore extends downstream from the intermediate portion of the bore to an outlet where the bore meets the outlet surface.
  • the intermediate portion of the bore has a cross-sectional flow area that is smaller than or equal to that of the inlet portion and smaller than that of the backstep portion to provide a backward facing step in flow area for flow through the bore.
  • the intermediate portion of the bore can meet the backstep portion of the bore a position that is between about 20% to about 50% of a length of the bore defined from the inlet to the exit of the bore.
  • the backstep portion of the bore has a diameter that is between about 20% and about 80% larger than the diameter of the intermediate portion of the bore. It is also contemplated that the backstep portion can have a cross-sectional area, e.g., normal to the flow direction, that is between about 40% to 225% larger than that of the intermediate portion.
  • the intermediate portion of the bore can be dimensioned to meter flow through the bore.
  • the inlet portion of the bore can include at least one of a countersink with a larger cross-sectional area than that of the bore downstream of the countersink, or a chamfer with a larger cross-sectional area than that of the bore downstream of the countersink.
  • the backstep portion of the bore can include a diffuser, e.g., a bellmouth diffuser, tapered diffuser, or the like, opening gradually downstream of the intermediate portion.
  • a flow directing apparatus can include a plurality of bores as described above.
  • the flow body can be a mixer and the bores can be arranged circumferentially about a center axis defined by the flow body.
  • Each bore can be aligned along a bore axis that has at least one of a tangential directional component, a converging directional component, or a diverging directional component relative to a center axis defined by the flow body.
  • the bores can include an inner set of bores arranged circumferentially about a centerline axis defined by the flow body, and an outer set of bores arranged circumferentially about the centerline axis outboard of the inner set of bores.
  • a pressure atomizer can be incorporated in the flow body.
  • any other suitable device for injecting fuel into a system can be used, such as a prefilming circuit or other advanced prefilming atomizer, fuel jets such as a jet in a cross-flow, multipoint injector, or the like.
  • FIG. 1 is a perspective view of an exemplary embodiment of a flow body constructed in accordance with the present disclosure, showing the downstream outlet surface;
  • FIG. 2 is a cross-sectional side elevation view of the flow body of FIG. 1 , showing the corresponding cross-section indicated in FIG. 1 ;
  • FIG. 3 is a cross-sectional side elevation view of the flow body of FIG. 1 , showing the corresponding cross-section indicated in FIG. 1 ;
  • FIG. 4 is a perspective view of an exemplary embodiment of an atomizer including a flow body constructed in accordance with the present disclosure, wherein the flow body is an air swirler;
  • FIG. 5 is a cross-sectional side elevation view of the pressure atomizer of FIG. 4 , showing the pressure atomizer;
  • FIG. 6 is a cross-sectional side elevation view of the pressure atomizer of FIG. 4 , showing the backstep in one of the bores through the air swirler;
  • FIG. 7 is a schematic cross-sectional side elevation view of an exemplary embodiment of a flow directing device, showing an intermediate portion of the bore that is a tapered diffuser;
  • FIG. 8 is a schematic cross-sectional side elevation view of another exemplary embodiment of a flow directing device, showing an intermediate portion of the bore that is a bellmouth diffuser;
  • FIG. 9 is a perspective view of another exemplary embodiment of a flow directing device, showing back step bores that include fuel injection orifices.
  • FIG. 10 is a perspective view of another exemplary embodiment of a flow directing device, showing back step bores that are curved.
  • FIG. 1 a partial view of an exemplary embodiment of a flow body in accordance with the disclosure is shown in FIG. 1 and is designated generally by reference character 100 .
  • FIGS. 2-10 Other embodiments of flow bodies in accordance with the disclosure, or aspects thereof, are provided in FIGS. 2-10 , as will be described.
  • the systems and methods described herein can be used to enhance turbulent mixing, e.g. for fuel injection and the like.
  • the systems and methods described herein can increase turbulent kinetic energy and thereby improve the local mixing characteristics relative to traditional configurations, for example in drilled hole type swirlers.
  • Flow directing apparatus 100 for directing fluid flowing therethrough includes a flow body 102 defining an upstream facing inlet surface 104 , shown in FIG. 2 , and an opposed downstream facing outlet surface 106 with a plurality of bores 108 defined through flow body 102 from inlet surface 104 to outlet surface 106 .
  • each bore 108 is configured to direct fluid flowing therethrough and includes an inlet portion 110 extending in a downstream direction from an inlet 112 where the bore meets inlet surface 104 .
  • An intermediate portion 114 extends in a downstream direction from inlet portion 110 .
  • a backstep portion 116 of bore 108 extends downstream from intermediate portion 114 to an outlet 118 where bore 108 meets outlet surface 106 .
  • Intermediate portion 114 of bore 108 has a cross-sectional flow area that is smaller than that of inlet portion 110 and smaller than that of backstep portion 116 to provide a backward facing step in flow area for flow through bore 108 . It is also contemplated that bore 108 could have a cross-sectional flow area that is equal to that of inlet portion 110 .
  • the intermediate portion 114 of bore 108 meets the backstep portion 116 of bore 108 at a position X that is between about 20% to about 80% of a length L of the bore 108 defined from inlet 112 to exit 118 of bore 108 .
  • Backstep portion 116 has a diameter D 3 that is between about 20% and about 80% larger than the diameter D 2 of the intermediate portion 114 .
  • the backstep portion 116 can have a cross-sectional area, e.g., normal to the flow direction, that is between about 40% to 225% larger than that of the intermediate portion 114 .
  • Diameter D 1 of inlet portion 110 is also greater than diameter D 2 .
  • Intermediate portion 114 is dimensioned to meter flow through the bores 108 . It is contemplated that D 1 could be equal to D 2 , e.g., where there is no chamfer, countersink, or the like on the inlet 112 .
  • Inlet portion 110 of bore 108 includes a chamfer with a larger cross-sectional area than that of the bore downstream of the chamfer.
  • a countersink or any other suitable entrance configuration can be used for providing a suitable discharge coefficient and suitably limit part-to-part variability in flow characteristics.
  • Other suitable entrance configurations, for example, are discussed in U.S. Patent Application Publication No. 2014/0166143.
  • the flow body can be a mixer, such as air swirler 202 of atomizer 200 .
  • Bores 208 similar to bores 108 described above, are arranged circumferentially about a centerline axis A defined by the air swirler 202 .
  • Each bore 208 is aligned along a respective bore axis B, shown in FIG. 6 , that has a tangential directional component, which can be noted by observing the location of cross-section 6 - 6 in FIG. 4 , and a converging directional component, indicated by angle ⁇ , relative to centerline axis A.
  • the bores can include an inner set of bores 208 , and an outer set of bores 209 also arranged circumferentially about centerline axis A, but outboard of the inner set of bores 208 .
  • Bores 209 include the same backstep feature as bores 208 .
  • a pressure atomizer 238 is mounted in air swirler 202 along the centerline axis A. Air swirler 202 serves as a mixer to mix air passing through bores 208 with fuel issued from pressure atomizer 238 .
  • the back step portion downstream of the intermediate portion can be a tapered diffuser, such as tapered diffuser 314 of flow directing apparatus 300 in FIG. 7 , a bellmouth diffuser, such as bellmouth diffuser 414 of flow directing apparatus 400 in FIG. 8 , or any other suitable type of diffuser, opening gradually downstream of the intermediate portion rather than being a hard step.
  • a tapered diffuser such as tapered diffuser 314 of flow directing apparatus 300 in FIG. 7
  • a bellmouth diffuser such as bellmouth diffuser 414 of flow directing apparatus 400 in FIG. 8
  • any other suitable type of diffuser opening gradually downstream of the intermediate portion rather than being a hard step.
  • Apparatus 500 includes countersink drilled hole mixers 550 , which are the atomizing circuit which initially film and atomize the fuel, which is injected directly into these holes via orifices 552 . Closely downstream from the nozzle face 554 , this atomized fuel/air from mixers 550 will meet up with air from outer air circuit 556 .
  • the bores of outer air circuit 556 have the back step feature described herein such that the added turbulent energy aids in readily mixing the air that it is delivered with the atomized fuel.
  • the fuel/air circuit of mixers 550 also has the back step feature described herein, not just to help increase mixing, but also to give some shelter to the fuel so it can be properly distributed around the circumference of the mixers 550 .
  • back step features as described herein can be used with a prefilming liquid fuel circuit.
  • the swirler ports in the injectors shown and described in U.S. Patent Application Publication No. 2014/0338337 could be modified to benefit from the techniques described herein.
  • Adding the back step mixing features described herein to the inner and outer air holes (reference characters 106 and 122 in that Publication) wherein the fuel is issued in through the fuel circuit would promote extra turbulent energy close the nozzle face and enhance mixing of the air and fuel.
  • flow directing body 600 in FIG. 10 includes back step bores 608 much as described above, wherein each of the bores 608 is curved.
  • back step bores 608 much as described above, wherein each of the bores 608 is curved.
  • bores shown and described herein are circular in cross-section, this is exemplary, and any suitable cross-sectional shape such as elliptical, trapezoidal, or the like, can be used without departing from the scope of this disclosure.
  • Any suitable manufacturing techniques can be used to form flow bodies as described herein. Conventional machining and/or additive manufacturing can be used.
  • flow bodies as described herein can provide a significant increase in turbulent kinetic energy associated with backstep in the flow. This turbulence enhances mixing in close proximity to the bores.
  • the flow from a flow body as described herein has a much more uniform velocity profile than traditional nozzles with the same effective flow area. This shows that the increased turbulent kinetic energy is being used effectively as a mixer.
  • a large increase in turbulent kinetic energy is started in the backstep, e.g., where intermediate portion 114 and backstep portion 116 meet, and continues out into the local mixing portion of the flowfield.
  • the characteristics of a drilled hole air swirler, e.g., air swirler 202 , on a pressure atomizer such as pressure atomizer 238 include local mixing characteristics with improved mixing efficiency relative to traditional configurations. This improved mixing results in a noted reduction in the emissions of the pollutant NOx relative to conventional configurations.
  • the velocity profiles at the exit of the disclosed mixers are better mixed compared to traditional nozzles which have much larger jet-like portions in their velocity profiles. The increased mixing results in much lower peak temperatures, which in turn reduces the NOx emissions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Fuel-Injection Apparatus (AREA)
US15/044,912 2015-02-18 2016-02-16 Enhanced turbulent mixing Abandoned US20160238255A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/044,912 US20160238255A1 (en) 2015-02-18 2016-02-16 Enhanced turbulent mixing

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562117778P 2015-02-18 2015-02-18
US201562117814P 2015-02-18 2015-02-18
US15/044,912 US20160238255A1 (en) 2015-02-18 2016-02-16 Enhanced turbulent mixing

Publications (1)

Publication Number Publication Date
US20160238255A1 true US20160238255A1 (en) 2016-08-18

Family

ID=55446619

Family Applications (3)

Application Number Title Priority Date Filing Date
US15/044,912 Abandoned US20160238255A1 (en) 2015-02-18 2016-02-16 Enhanced turbulent mixing
US15/044,814 Active US9901944B2 (en) 2015-02-18 2016-02-16 Atomizers
US15/904,624 Active 2036-06-06 US11628455B2 (en) 2015-02-18 2018-02-26 Atomizers

Family Applications After (2)

Application Number Title Priority Date Filing Date
US15/044,814 Active US9901944B2 (en) 2015-02-18 2016-02-16 Atomizers
US15/904,624 Active 2036-06-06 US11628455B2 (en) 2015-02-18 2018-02-26 Atomizers

Country Status (2)

Country Link
US (3) US20160238255A1 (fr)
EP (2) EP3059495B1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150285502A1 (en) * 2014-04-08 2015-10-08 General Electric Company Fuel nozzle shroud and method of manufacturing the shroud
US20160178206A1 (en) * 2013-10-18 2016-06-23 Mitsubishi Heavy Industries, Ltd. Fuel injector
US20160290651A1 (en) * 2015-04-01 2016-10-06 Delavan Inc Air shrouds with improved air wiping
US20170037783A1 (en) * 2015-08-03 2017-02-09 Delavan Inc Fuel staging
US20180071755A1 (en) * 2016-09-13 2018-03-15 Spectrum Brands, Inc. Swirl pot shower head engine
US11512853B2 (en) * 2020-06-30 2022-11-29 General Electric Company Fuel circuit for a fuel injector

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11118785B2 (en) * 2018-10-26 2021-09-14 Delavan Inc. Fuel injectors for exhaust heaters
US10935245B2 (en) 2018-11-20 2021-03-02 General Electric Company Annular concentric fuel nozzle assembly with annular depression and radial inlet ports
US10934940B2 (en) * 2018-12-11 2021-03-02 General Electric Company Fuel nozzle flow-device pathways
US11286884B2 (en) 2018-12-12 2022-03-29 General Electric Company Combustion section and fuel injector assembly for a heat engine
US11073114B2 (en) 2018-12-12 2021-07-27 General Electric Company Fuel injector assembly for a heat engine
US11156360B2 (en) 2019-02-18 2021-10-26 General Electric Company Fuel nozzle assembly
CN110697823A (zh) * 2019-11-03 2020-01-17 中国华电科工集团有限公司 一种脱硫废水干燥装置及方法
WO2022123192A1 (fr) * 2020-12-09 2022-06-16 Harris Innovations Ltd Appareil atomiseur

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251192A (en) * 1938-09-08 1941-07-29 Mueller Co Shower head
US2813753A (en) * 1956-03-16 1957-11-19 Fredrick C Roberts Fog nozzle
US2933259A (en) * 1958-03-03 1960-04-19 Jean F Raskin Nozzle head
US4141505A (en) * 1976-06-07 1979-02-27 Reich Richard B Heavy fuel oil nozzle
US4303386A (en) * 1979-05-18 1981-12-01 Coen Company, Inc. Parallel flow burner
US4356970A (en) * 1979-05-18 1982-11-02 Coen Company, Inc. Energy saving fuel oil atomizer
US4460130A (en) * 1979-12-21 1984-07-17 Exxon Research And Engineering Co. High temperature gas distribution injector
US4601428A (en) * 1983-12-09 1986-07-22 Tokyo Sangyo Kabushiki Kaisha Burner tip
US5888059A (en) * 1992-10-01 1999-03-30 Expro North Sea Limited Combustion apparatus
US6892962B2 (en) * 2001-10-29 2005-05-17 Combustion Components Associates, Inc. Fuel oil atomizer and method for atomizing fuel oil
US7364097B2 (en) * 2005-03-15 2008-04-29 Yoji Okuma Shower head

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005042C2 (de) * 1978-06-28 1986-03-27 Smit Ovens Nijmegen B.V., Nijmegen Brenner für flüssigen Brennstoff mit einer Wirbelkammer
US5322222A (en) * 1992-10-05 1994-06-21 Lott W Gerald Spiral jet fluid mixer
JP3612331B2 (ja) * 1993-06-01 2005-01-19 プラット アンド ホイットニー カナダ，インコーポレイテッド 半径方向に取り付けられる空気噴出型燃料噴射弁
US5697553A (en) * 1995-03-03 1997-12-16 Parker-Hannifin Corporation Streaked spray nozzle for enhanced air/fuel mixing
US6311473B1 (en) * 1999-03-25 2001-11-06 Parker-Hannifin Corporation Stable pre-mixer for lean burn composition
US6755024B1 (en) 2001-08-23 2004-06-29 Delavan Inc. Multiplex injector
US6863228B2 (en) * 2002-09-30 2005-03-08 Delavan Inc. Discrete jet atomizer
EP2309180A2 (fr) * 2004-05-19 2011-04-13 Innovative Energy, Inc. Procédé et appareil de combustion
US8348180B2 (en) * 2004-06-09 2013-01-08 Delavan Inc Conical swirler for fuel injectors and combustor domes and methods of manufacturing the same
US8057220B2 (en) * 2008-02-01 2011-11-15 Delavan Inc Air assisted simplex fuel nozzle
US20090255118A1 (en) * 2008-04-11 2009-10-15 General Electric Company Method of manufacturing mixers
US9046039B2 (en) * 2008-05-06 2015-06-02 Rolls-Royce Plc Staged pilots in pure airblast injectors for gas turbine engines
US8590311B2 (en) * 2010-04-28 2013-11-26 General Electric Company Pocketed air and fuel mixing tube
US9188063B2 (en) 2011-11-03 2015-11-17 Delavan Inc. Injectors for multipoint injection
US10317073B2 (en) 2012-12-13 2019-06-11 Delavan Inc. Flow through cylindrical bores
US20140291418A1 (en) * 2013-03-26 2014-10-02 Parker-Hannifin Corporation Multi-circuit airblast fuel nozzle
US9574533B2 (en) * 2013-06-13 2017-02-21 General Electric Company Fuel injection nozzle and method of manufacturing the same
US9574776B2 (en) * 2013-10-21 2017-02-21 Delavan Inc. Three-piece airblast fuel injector

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251192A (en) * 1938-09-08 1941-07-29 Mueller Co Shower head
US2813753A (en) * 1956-03-16 1957-11-19 Fredrick C Roberts Fog nozzle
US2933259A (en) * 1958-03-03 1960-04-19 Jean F Raskin Nozzle head
US4141505A (en) * 1976-06-07 1979-02-27 Reich Richard B Heavy fuel oil nozzle
US4303386A (en) * 1979-05-18 1981-12-01 Coen Company, Inc. Parallel flow burner
US4356970A (en) * 1979-05-18 1982-11-02 Coen Company, Inc. Energy saving fuel oil atomizer
US4460130A (en) * 1979-12-21 1984-07-17 Exxon Research And Engineering Co. High temperature gas distribution injector
US4601428A (en) * 1983-12-09 1986-07-22 Tokyo Sangyo Kabushiki Kaisha Burner tip
US5888059A (en) * 1992-10-01 1999-03-30 Expro North Sea Limited Combustion apparatus
US6892962B2 (en) * 2001-10-29 2005-05-17 Combustion Components Associates, Inc. Fuel oil atomizer and method for atomizing fuel oil
US7364097B2 (en) * 2005-03-15 2008-04-29 Yoji Okuma Shower head

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11022314B2 (en) 2013-10-18 2021-06-01 Mitsubishi Heavy Industries, Ltd. Fuel injector, combustor, and gas turbine
US20160178206A1 (en) * 2013-10-18 2016-06-23 Mitsubishi Heavy Industries, Ltd. Fuel injector
US10274200B2 (en) * 2013-10-18 2019-04-30 Mitsubishi Heavy Industries, Ltd. Fuel injector, combustor, and gas turbine
US20150285502A1 (en) * 2014-04-08 2015-10-08 General Electric Company Fuel nozzle shroud and method of manufacturing the shroud
US9863638B2 (en) * 2015-04-01 2018-01-09 Delavan Inc. Air shrouds with improved air wiping
US20160290651A1 (en) * 2015-04-01 2016-10-06 Delavan Inc Air shrouds with improved air wiping
US10364751B2 (en) * 2015-08-03 2019-07-30 Delavan Inc Fuel staging
US20170037783A1 (en) * 2015-08-03 2017-02-09 Delavan Inc Fuel staging
US20180071755A1 (en) * 2016-09-13 2018-03-15 Spectrum Brands, Inc. Swirl pot shower head engine
US11504724B2 (en) 2016-09-13 2022-11-22 Spectrum Brands, Inc. Swirl pot shower head engine
US10549290B2 (en) * 2016-09-13 2020-02-04 Spectrum Brands, Inc. Swirl pot shower head engine
US11813623B2 (en) 2016-09-13 2023-11-14 Assa Abloy Americas Residential Inc. Swirl pot shower head engine
US11512853B2 (en) * 2020-06-30 2022-11-29 General Electric Company Fuel circuit for a fuel injector
US11940152B2 (en) 2020-06-30 2024-03-26 Ge Infrastructure Technology Llc Fuel circuit for a fuel injector

Also Published As

Publication number Publication date
US20160236215A1 (en) 2016-08-18
US20180178229A1 (en) 2018-06-28
US11628455B2 (en) 2023-04-18
EP3059495A2 (fr) 2016-08-24
EP3059495A3 (fr) 2016-11-09
EP3059495B1 (fr) 2020-04-01
US9901944B2 (en) 2018-02-27
EP3059497A2 (fr) 2016-08-24
EP3059497A3 (fr) 2016-11-16

Similar Documents

Publication Publication Date Title
US20160238255A1 (en) Enhanced turbulent mixing
US9625146B2 (en) Swirl slot relief in a liquid swirler
US20190101291A1 (en) Air swirlers
RU2604260C2 (ru) Кольцевая камера сгорания для турбомашины
US10865992B2 (en) Fuel injectors and methods of use in gas turbine combustor
US9488108B2 (en) Radial vane inner air swirlers
US10883719B2 (en) Prefilming fuel/air mixer
JP2011247576A (ja) ガスタービン燃焼器用のハイブリッド式事前フィルム形成空気ブラスト、事前気化、希釈予混合二重燃料ノズル
US10851999B2 (en) Fuel injectors and methods of use in gas turbine combustor
US8967852B2 (en) Mixers for immiscible fluids
WO2004071637A1 (fr) Melangeur
CN111185315B (zh) 旋流喷射模式还原剂喷嘴
US10094352B2 (en) Swirl impingement prefilming
EP3453973B1 (fr) Buse de pulvérisation de carburant
JP4973841B2 (ja) 二流体噴射ノズル
US9752774B2 (en) Fuel nozzle
JP7037176B2 (ja) 予混合ガスバーナ
US11649964B2 (en) Fuel injector assembly for a turbine engine
US11872583B2 (en) Counterflow mixer and atomizer
JP6955467B2 (ja) ガスタービンの燃料ノズル及び燃焼器並びにガスタービン
JP2021021494A (ja) 燃料ノズルおよびガスタービンエンジン

Legal Events

Date Code Title Description
AS Assignment

Owner name: DELAVAN INC, IOWA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:RYON, JASON A.;BUELOW, PHILIP E.;PROCIW, LEV A.;REEL/FRAME:037749/0974

Effective date: 20150312

STPP Information on status: patent application and granting procedure in general

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION