EP2592345B1 - Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff - Google Patents

Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff Download PDF

Info

Publication number
EP2592345B1
EP2592345B1 EP12191369.3A EP12191369A EP2592345B1 EP 2592345 B1 EP2592345 B1 EP 2592345B1 EP 12191369 A EP12191369 A EP 12191369A EP 2592345 B1 EP2592345 B1 EP 2592345B1
Authority
EP
European Patent Office
Prior art keywords
end cap
combustor
plenum
tubes
downstream
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.)
Not-in-force
Application number
EP12191369.3A
Other languages
English (en)
French (fr)
Other versions
EP2592345A1 (de
Inventor
Patrick Benedict Melton
lll James Harold Westmoreland
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP2592345A1 publication Critical patent/EP2592345A1/de
Application granted granted Critical
Publication of EP2592345B1 publication Critical patent/EP2592345B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00002—Gas turbine combustors adapted for fuels having low heating value [LHV]

Definitions

  • the present invention generally involves a combustor and method for supplying fuel to a combustor.
  • Combustors are commonly used in industrial and power generation operations to ignite fuel to produce combustion gases having a high temperature and pressure.
  • gas turbines typically include one or more combustors to generate power or thrust.
  • a typical gas turbine used to generate electrical power includes an axial compressor at the front, one or more combustors around the middle, and a turbine at the rear.
  • Ambient air may be supplied to the compressor, and rotating blades and stationary vanes in the compressor progressively impart kinetic energy to the working fluid (air) to produce a compressed working fluid at a highly energized state.
  • the compressed working fluid exits the compressor and flows through one or more nozzles into a combustion chamber in each combustor where the compressed working fluid mixes with fuel and ignites to generate combustion gases having a high temperature and pressure.
  • the combustion gases expand in the turbine to produce work. For example, expansion of the combustion gases in the turbine may rotate a shaft connected to a generator to produce electricity.
  • combustion gas temperatures generally improve the thermodynamic efficiency of the combustor.
  • higher combustion gas temperatures also promote flashback or flame holding conditions in which the combustion flame migrates towards the fuel being supplied by the nozzles, possibly causing severe damage to the nozzles in a relatively short amount of time.
  • localized hot streaks in the combustion chamber may increase the disassociation rate of diatomic nitrogen, increasing the production of nitrogen oxides (NO X ) at higher combustion gas temperatures.
  • lower combustion gas temperatures associated with reduced fuel flow and/or part load operation (turndown) generally reduce the chemical reaction rates of the combustion gases, increasing the production of carbon monoxide and unburned hydrocarbons.
  • GB 2197714 describes a combustor for use in the chemical or gas industry for the vapour/oxygen conversion of natural gas.
  • the gas is fed to inlet and mixes with oxygen exiting through pipes at the mouth of the combustor.
  • an outer cooling jacket terminates in a coolable base spaced apart from the housing base to provide a gap. Water fed from an inlet passes around gas pipes to the base and exits at an outlet. Oxygen gas outlet pipes pass through both bases.
  • US 201/031662 describes an injection nozzle for a turbomachine including a main body having a first end portion that extends to a second end portion defining an exterior wall having an outer surface.
  • a plurality of fluid delivery tubes extend through the main body.
  • Each of the plurality of fluid delivery tubes includes a first fluid inlet for receiving a first fluid, a second fluid inlet for receiving a second fluid and an outlet.
  • the injection nozzle further includes a coolant delivery system arranged within the main body. The coolant delivery system guides a coolant along at least one of a portion of the exterior wall and around the plurality of fluid delivery tubes.
  • a plurality of tubes may be radially arranged in an end cap to provide fluid communication for the working fluid to flow through the end cap and into the combustion chamber.
  • a fuel and/or a diluent may be supplied to the end cap and injected into the tubes to enhance mixing between the working fluid and fuel prior to combustion.
  • the enhanced mixing between the working fluid and fuel prior to combustion reduces hot streaks in the combustion chamber that can be problematic with higher combustion gas temperatures.
  • the tubes are effective at preventing flashback or flame holding and/or reducing NO X production, particularly at higher operating levels.
  • an improved combustor and method for supplying fuel to the combustor that allows for staged fueling, multiple fuels, and/or diluents to be supplied to the tubes without obstructing the tubes would be useful.
  • the present invention resides in a combustor and in a method for supplying fuel to a combustor as defined in the appended claims.
  • Various embodiments of the present invention provide a combustor and method for supplying fuel to a combustor.
  • the various embodiments may reduce flow disturbances through the tubes, increase structural support provided to the end cap, reduce manufacturing costs of the combustor, and/or enable staged fueling and/or multiple fuels and/or diluents to be supplied to the tubes over a wide range of operating conditions without exceeding design margins associated with flashback, flame holding, and/or emissions limits.
  • Fig. 1 provides a simplified cross-section view of an exemplary combustor 10 according to one embodiment of the present invention
  • Fig. 2 provides a downstream cross-section view of the combustor shown in Fig. 1 taken along line A-A.
  • a casing 12 generally surrounds the combustor 10 to contain a working fluid 14 flowing to the combustor 10
  • an end cover 16 provides an interface for supplying fuel, diluent, and/or other additives to the combustor 10.
  • Possible diluents may include, for example, water, steam, working fluid, air, fuel additives, various inert gases such as nitrogen, and/or various non-flammable gases such as carbon dioxide or combustion exhaust gases supplied to the combustor 10.
  • An end cap 18 extends radially across at least a portion of the combustor 10, and the casing 12 circumferentially surrounds at least a portion of the end cap 18 to define an annular passage 20 between the end cap 18 and the casing 12.
  • the end cap 18 and a liner 22 defines at least a portion of a combustion chamber 24 downstream from the end cap 18.
  • the working fluid 14 flows through the annular passage 20 along the outside of the liner 22 to provide convective cooling to the liner 22.
  • the working fluid 14 may reverse direction to flow through the end cap 18 and into the combustion chamber 24.
  • the end cap 18 includes an upstream surface 26 axially separated from a downstream surface 28, and a shroud 29 surrounds the upstream and downstream surfaces 26, 28.
  • a plurality of tubes 30 extend axially from the upstream surface 26 to the downstream surface 28 to provide fluid communication through the end cap 18.
  • the particular shape, size, number, and arrangement of the tubes 30 may vary according to particular embodiments.
  • the tubes 30 are generally illustrated as having a cylindrical shape; however, alternate embodiments within the scope of the present invention may include tubes having virtually any geometric cross-section.
  • the tubes 30 may be radially arranged across the end cap 18 in one or more sets or groups of various shapes and sizes, with each set of tubes 30 having one or more separate fuel supplies.
  • multiple tubes 30 may be radially arranged around a fuel nozzle, or multiple sets of tubes 30 may be radially arranged across the end cap 18.
  • One or more fluid conduits may provide one or more fuels, diluents, and/or other additives to each set of tubes 30, and the type, fuel content, and reactivity of the fuel and/or diluent may vary for each fluid conduit or set of tubes. In this manner, different types, flow rates, and/or additives may be supplied to one or more sets of tubes to enhance staged fueling of the tubes 30 over a wide range of operating conditions.
  • the combustor 10 includes one or more structures that extend downstream from the end cover 16 to support the end cap 18 and/or provide various fluid passages between the end cover 16 and the end cap 18.
  • the combustor 10 includes an inner support tube 40 and an outer support tube 42 that extend downstream from the end cover 16.
  • the inner support tube 40 connects to the downstream surface 28 of the end cap 18 to partially support the end cap 18 axially inside the combustor 10.
  • the inner support tube 40 also functions as or include a fuel conduit 40 that extends downstream from the end cover 16 to define a fuel plenum 44 inside the inner support tube 40. In this manner, the inner support tube/fuel conduit 40 provides fluid communication from the end cover 16 to the end cap 18 to supply fuel to the end cap 18 and/or combustion chamber 24.
  • the outer support tube 42 circumferentially surrounds the inner support tube 40 and connect to the upstream surface 26 of the end cap 18 to partially support the end cap 18 axially inside the combustor 10.
  • the outer support tube 42 defines one or more fluid passages between the end cover 16 and the end cap 18.
  • a barrier 46 extends axially between the inner and outer support tubes 40, 42 upstream from the upstream surface 26 to partially define first and second plenums 50, 52 between the inner and outer support tubes 40, 42. Downstream from the upstream surface 26, the barrier 46 extends radially between the first and second plenums 50, 52 to further separate the first and second plenums 50, 52 inside the end cap 18.
  • the first plenum 50 circumferentially surrounds the inner support tube/fuel conduit 40 between the end cover 16 and the upstream surface 26 before extending radially inside the end cap 18 between the upstream and downstream surfaces 26, 28.
  • the second plenum 52 may circumferentially surround the first plenum 50 between the end cover 16 and the upstream surface 26 before extending radially inside the end cap 18 between the upstream and downstream surfaces 26, 28.
  • the first plenum 50 thus extends radially inside the end cap 18 downstream from the second plenum 52 with respect to the direction of the working fluid 14 through the end cap 18.
  • the first and second plenums 50, 52 provide fluid communication between the end cover 16 and the end cap 18 to allow various fuels, diluents, or other fluid additives to be supplied to the tubes 30.
  • Each tube 30 in turn includes one or more ports 54 that provide fluid communication through the tube 30 from the first and/or second fuel plenums 50, 52.
  • the ports 54 may be angled radially, axially, and/or azimuthally to project and/or impart swirl to the fluid flowing through the ports 54 and into the tubes 30.
  • the particular number, size, and location of the ports 54 in the tubes 30 may be varied to allow staged fluid flow to the tubes 30. For example, as shown in Fig.
  • a first set of tubes 60 include ports 54 that provide fluid communication with only the first plenum 50
  • a second set of tubes 62 include ports 54 that provide fluid communication with only the second plenum 52.
  • the working fluid 14 flows outside of the end cap 18 through the annular passage 20 until it reaches the end cover 16 and reverses direction to flow through the tubes 30.
  • a first fuel or diluent may flow around the tubes 30 in the first plenum 50 to provide convective cooling to the tubes 30 before flowing through the ports 54 and into the first set of tubes 60 to mix with the working fluid 14.
  • a second fuel or diluent may flow around the tubes 30 in the second plenum 52 to provide convective cooling to the tubes 30 before flowing through the ports 54 and into the second set of tubes 60 to mix with the working fluid 14.
  • the mixture from each set of tubes 60, 62 may then flow into the combustion chamber 24.
  • the combustor 10 may also include additional structures for supporting the end cap 18 and/or allowing thermal expansion between the various components.
  • the combustor 10 includes a flexible coupling 64 between the end cover 16 and the inner support tube/fuel conduit 40 and/or the barrier 46.
  • the flexible coupling 64 may include an expansion joint, bellows, or other device that allows for axial displacement of the inner support tube/fuel conduit 40 and/or barrier 46 caused by thermal expansion and contraction of the outer support tube 42 and/or tubes 30.
  • the combustor 10 also includes a support 66 that extends radially between the end cap 18 and the casing 12 in the annular passage 20.
  • the support 66 may have an airfoil shape to reduce flow resistance of the working fluid 14 flowing across the support 66 in the annular passage 20.
  • the support 66 may be angled to impart swirl to the working fluid 14 flowing through the annular passage 20.
  • the combustor 10 may include a cap shield 68 that circumferentially surrounds the end cap 18 and/or a sliding engagement 70 between the end cap 18 and the cap shield 68.
  • the cap shield 68 is connected to the support 66 and/or the shroud 29 that surrounds the end cap 18.
  • the sliding engagement 70 includes a spring washer, a hula seal, or similar device and may extend continuously around the end cap 18 or in segments around the end cap 18, as shown in Fig. 2 , to allow axial movement of the end cap 18 with respect to the cap shield 68 and/or support 66.
  • the sliding engagement 70 may also provide a variable radial stiffness to the end cap 18 to allow slight modifications to the natural or resonant frequency of the end cap 18.
  • the working fluid 14 may be supplied through the annular passage 20 and tubes 30 radially arranged in the end cap 18.
  • a first fuel or a first diluent may be supplied through the first plenum 50 to the first set of tubes 60, and a second fuel or a second diluent may be supplied through the second plenum 52 to the second set of tubes 62.
  • a third fuel or third diluent may be supplied through the fuel plenum 44 to the combustion chamber 24.
  • the first, second, and third fuels and diluents may be the same or different, thus providing very flexible methods for providing staged fueling to various locations across the combustor 10 to enable the combustor 10 to operate over a wide range of operating conditions without exceeding design margins associated with flashback, flame holding, and/or emissions limits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (11)

  1. Brennkammer (10), die umfasst:
    eine Abschlussabdeckung (16);
    eine Abschlusskappe (18) stromabwärts von der Abschlussabdeckung (16), die sich radial quer über mindestens einen Abschnitt der Brennkammer (10) erstreckt, wobei die Abschlusskappe (18) eine Oberfläche (26) stromaufwärts umfasst, die axial von einer Oberfläche (28) stromabwärts getrennt ist;
    mehrere Rohre (30), die sich von der Oberfläche (26) stromaufwärts durch die Oberfläche (28) stromabwärts erstrecken, um eine Fluidkommunikation durch die Abschlusskappe (18) bereitzustellen;
    ein äußeres Trägerrohr (42), das sich stromabwärts von der Abschlussabdeckung (16) erstreckt und mit der Oberfläche (28) stromaufwärts der Abschlusskappe (18) verbunden ist;
    ein inneres Trägerrohr (40), das sich stromabwärts von der Abschlussabdeckung (16) erstreckt und mit der Oberfläche (28) stromabwärts der Abschlusskappe (18) verbunden ist;
    eine erste Kammer (50), die das innere Trägerrohr (40) zwischen der Abschlussabdeckung (16) und der Oberfläche (26) stromaufwärts umgibt, bevor sie sich radial zwischen der Oberfläche stromaufwärts und stromabwärts (26, 28) erstreckt;
    eine zweite Kammer (52), die die erste Kammer (50) zwischen der Abschlussabdeckung (16) und der Oberfläche (26) stromaufwärts umgibt, bevor sie sich radial zwischen der Oberfläche stromaufwärts und stromabwärts (26, 28) erstreckt; und
    dadurch gekennzeichnet, dass die erste Kammer (50) in einer Fluidkommunikation mit einem ersten Satz von Rohren (60) und die zweite Kammer (52) in einer Fluidkommunikation mit einem zweiten Satz von Rohren (62) in Verbindung steht.
  2. Brennkammer nach Anspruch 1, wobei sich die erste Kammer (50) radial innerhalb der Abschlusskappe (18) stromabwärts von der zweiten Kammer (52) erstreckt.
  3. Brennkammer nach Anspruch 1 oder 2, die ferner eine Barriere (46) umfasst, die sich zwischen der ersten und der zweiten Kammer (50, 52) erstreckt, wobei sich die Barriere (46) axial zwischen der ersten und der zweiten Kammer (50, 52) stromaufwärts von der Oberfläche (26) stromaufwärts erstreckt.
  4. Brennkammer nach Anspruch 3, wobei sich die Barriere (46) radial zwischen der ersten und der zweiten Kammer (50, 52) stromabwärts von der Oberfläche (26) stromaufwärts erstreckt.
  5. Brennkammer nach einem der Ansprüche 1 bis 4, die ferner eine Brennstoffkammer (44) innerhalb des inneren Trägerrohrs (40) umfasst.
  6. Brennkammer nach einem vorhergehenden Anspruch, die ferner ein Gehäuse (12), das mindestens einen Abschnitt der Abschlusskappe (18) am Umfang umgibt, um einen ringförmigen Durchlass (20) zwischen der Abschlusskappe (18) und dem Gehäuse (12) zu definieren, umfasst, und wobei sich ein Träger (66) radial zwischen der Abschlusskappe (18) und dem Gehäuse (12) in dem ringförmigen Durchlass (20) erstreckt.
  7. Brennkammer nach einem vorhergehenden Anspruch, die ferner eine Schutzkappe (68) umfasst, die die Abschlusskappe (18) am Umfang umgibt.
  8. Brennkammer nach Anspruch 7, die ferner zwischen der Abschlusskappe (18) und der Schutzkappe (68) einen Gleiteingriff (70) umfasst.
  9. Verfahren zur Versorgung einer Brennkammer (10) mit Brennstoff, das umfasst:
    Strömen eines Arbeitsfluids (14) durch mehrere Rohre (30), die radial in einer Abschlusskappe (18) angeordnet sind, wobei sich die Abschlusskappe (18) quer über mindestens einen Abschnitt der Brennkammer (10) erstreckt;
    Strömen mindestens von einem eines ersten Brennstoffs oder einer ersten Verdünnung durch eine erste Kammer (50), wobei die erste Kammer (50) mindestens teilweise durch ein inneres Trägerrohr (40) definiert ist, das mit einer Oberfläche (28) stromabwärts der Abschlusskappe (18) verbunden ist; und Strömen mindestens von einem eines zweiten Brennstoffs oder einer zweiten Verdünnung durch eine zweite Kammer (52), die mindestens einen Abschnitt der ersten Kammer (50) am Umfang umgibt, wobei die zweite Kammer (52) mindestens teilweise durch ein äußeres Trägerrohr (42) definiert ist, das mit einer Oberfläche (26) stromaufwärts der Abschlusskappe (18) verbunden ist;
    dadurch gekennzeichnet, dass die erste Kammer (50) in einer Fluidkommunikation mit dem ersten Satz (60) von Rohren (30) und die zweite Kammer (52) in einer Fluidkommunikation mit einem zweiten Satz (62) von Rohren (30) in Verbindung steht.
  10. Verfahren nach Anspruch 9, das ferner ein Strömen eines dritten Brennstoffs innerhalb des inneren Trägerrohrs (40) umfasst.
  11. Verfahren nach Anspruch 10, das ferner ein Strömen mindestens von einem des ersten Brennstoffs oder der ersten Verdünnung radial innerhalb der Abschlusskappe (18) stromabwärts von der zweiten Kammer (52) umfasst.
EP12191369.3A 2011-11-08 2012-11-06 Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff Not-in-force EP2592345B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/291,441 US20130115561A1 (en) 2011-11-08 2011-11-08 Combustor and method for supplying fuel to a combustor

Publications (2)

Publication Number Publication Date
EP2592345A1 EP2592345A1 (de) 2013-05-15
EP2592345B1 true EP2592345B1 (de) 2017-03-08

Family

ID=47143692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12191369.3A Not-in-force EP2592345B1 (de) 2011-11-08 2012-11-06 Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff

Country Status (3)

Country Link
US (1) US20130115561A1 (de)
EP (1) EP2592345B1 (de)
CN (1) CN103090415B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130122436A1 (en) * 2011-11-11 2013-05-16 General Electric Company Combustor and method for supplying fuel to a combustor
US9033699B2 (en) * 2011-11-11 2015-05-19 General Electric Company Combustor
US9291103B2 (en) * 2012-12-05 2016-03-22 General Electric Company Fuel nozzle for a combustor of a gas turbine engine
KR101838822B1 (ko) 2013-10-18 2018-03-14 미츠비시 쥬고교 가부시키가이샤 연료 분사기
US9423135B2 (en) * 2013-11-21 2016-08-23 General Electric Company Combustor having mixing tube bundle with baffle arrangement for directing fuel
US9631816B2 (en) * 2014-11-26 2017-04-25 General Electric Company Bundled tube fuel nozzle
US10634344B2 (en) * 2016-12-20 2020-04-28 General Electric Company Fuel nozzle assembly with fuel purge

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100733A (en) * 1976-10-04 1978-07-18 United Technologies Corporation Premix combustor
CS551787A1 (en) * 1986-11-18 1989-05-12 Schingnitz Manfred Gas burner
US5605287A (en) * 1995-01-17 1997-02-25 Parker-Hannifin Corporation Airblast fuel nozzle with swirl slot metering valve
JP2004137977A (ja) * 2002-10-18 2004-05-13 Usui Kokusai Sangyo Kaisha Ltd 燃料配管系の脈動低減システム
JP4922878B2 (ja) * 2007-09-19 2012-04-25 株式会社日立製作所 ガスタービン燃焼器
US8091370B2 (en) * 2008-06-03 2012-01-10 United Technologies Corporation Combustor liner cap assembly
US8112999B2 (en) * 2008-08-05 2012-02-14 General Electric Company Turbomachine injection nozzle including a coolant delivery system
US8661779B2 (en) * 2008-09-26 2014-03-04 Siemens Energy, Inc. Flex-fuel injector for gas turbines
US8424311B2 (en) * 2009-02-27 2013-04-23 General Electric Company Premixed direct injection disk
US8234871B2 (en) * 2009-03-18 2012-08-07 General Electric Company Method and apparatus for delivery of a fuel and combustion air mixture to a gas turbine engine using fuel distribution grooves in a manifold disk with discrete air passages

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2592345A1 (de) 2013-05-15
CN103090415B (zh) 2016-09-21
US20130115561A1 (en) 2013-05-09
CN103090415A (zh) 2013-05-08

Similar Documents

Publication Publication Date Title
EP2629017B1 (de) Brennkammer
EP2578944B1 (de) Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff
US8984887B2 (en) Combustor and method for supplying fuel to a combustor
US8904798B2 (en) Combustor
US9151500B2 (en) System for supplying a fuel and a working fluid through a liner to a combustion chamber
CN106051825B (zh) 包括引导喷嘴的燃料喷嘴组件
EP2647911B1 (de) Brennkammer
EP2592346B1 (de) Brennkammer
EP2592345B1 (de) Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff
EP2592350B1 (de) Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff
US8511086B1 (en) System and method for reducing combustion dynamics in a combustor
EP3220047B1 (de) Gasturbinenstromhülsenhalterung
US8550809B2 (en) Combustor and method for conditioning flow through a combustor
CN106066048B (zh) 预混引导喷嘴
EP2520857A1 (de) Brennkammerdüse und Verfahren zur Versorgung einer Brennkammer mit Brennstoff
EP2634488B1 (de) System und Verfahren zur Verringerung der Verbrennungsdynamik in einer Turbomaschine
JP2014122784A (ja) 燃焼器に燃料を供給するためのシステム
EP2592349A2 (de) Brennkammer und Verfahren zur Versorgung einer Brennkammer mit Brennstoff

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

17P Request for examination filed

Effective date: 20131115

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20161102

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 873872

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602012029513

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170609

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170608

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 873872

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170608

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170708

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170710

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602012029513

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

26N No opposition filed

Effective date: 20171211

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602012029513

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20171106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171106

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180731

Ref country code: BE

Ref legal event code: MM

Effective date: 20171130

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180602

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171130

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20121106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170308