CA2872247A1 - Turbine airfoil trailing edge bifurcated cooling holes - Google Patents

Turbine airfoil trailing edge bifurcated cooling holes Download PDF

Info

Publication number: CA2872247A1
Authority: CA; Canada
Prior art keywords: airfoil; trailing edge; section; lands; spanwise
Prior art date: 2012-05-08
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

CA2872247A

Other languages

English (en)

French (fr)

Inventor

Robert Frederick Bergholz, Jr.

Daniel Lee Durstock

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.)

2012-05-08

Filing date

2013-04-11

Publication date

2014-01-16

2013-04-11 Application filed by General Electric Co filed Critical General Electric Co

2014-01-16 Publication of CA2872247A1 publication Critical patent/CA2872247A1/en

Status Abandoned legal-status Critical Current

Links

238000001816 cooling Methods 0.000 title claims abstract description 149
238000005192 partition Methods 0.000 claims abstract description 27
230000007704 transition Effects 0.000 claims description 9
238000011144 upstream manufacturing Methods 0.000 claims description 9
239000002826 coolant Substances 0.000 description 16
239000000567 combustion gas Substances 0.000 description 8
239000007789 gas Substances 0.000 description 7
239000010408 film Substances 0.000 description 6
230000007423 decrease Effects 0.000 description 3
230000002349 favourable effect Effects 0.000 description 3
239000000446 fuel Substances 0.000 description 3
238000009792 diffusion process Methods 0.000 description 2
238000007599 discharging Methods 0.000 description 2
230000000694 effects Effects 0.000 description 2
239000000284 extract Substances 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000000926 separation method Methods 0.000 description 2
238000005266 casting Methods 0.000 description 1
238000002485 combustion reaction Methods 0.000 description 1
238000004891 communication Methods 0.000 description 1
230000002708 enhancing effect Effects 0.000 description 1
RLQJEEJISHYWON-UHFFFAOYSA-N flonicamid Chemical compound FC(F)(F)C1=CC=NC=C1C(=O)NCC#N RLQJEEJISHYWON-UHFFFAOYSA-N 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000000203 mixture Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000010409 thin film Substances 0.000 description 1

Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection cooling
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/06—Fluid supply conduits to nozzles or the like
- F01D9/065—Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids
- 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
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
- 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
- F05D2250/00—Geometry
- F05D2250/10—Two-dimensional
- F05D2250/14—Two-dimensional elliptical
- 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
- F05D2250/00—Geometry
- F05D2250/30—Arrangement of components
- F05D2250/32—Arrangement of components according to their shape
- F05D2250/323—Arrangement of components according to their shape convergent
- 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
- F05D2250/00—Geometry
- F05D2250/30—Arrangement of components
- F05D2250/32—Arrangement of components according to their shape
- F05D2250/324—Arrangement of components according to their shape divergent
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Fluid Mechanics (AREA)
Turbine Rotor Nozzle Sealing (AREA)

CA2872247A 2012-05-08 2013-04-11 Turbine airfoil trailing edge bifurcated cooling holes Abandoned CA2872247A1 (en)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US13/466,508		2012-05-08
US13/466,508 US20130302177A1 (en)	2012-05-08	2012-05-08	Turbine airfoil trailing edge bifurcated cooling holes
PCT/US2013/036056 WO2014011276A2 (en)	2012-05-08	2013-04-11	Turbine airfoil trailing edge bifurcated cooling holes

Publications (1)

Publication Number	Publication Date
CA2872247A1 true CA2872247A1 (en)	2014-01-16

Family

ID=49517619

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA2872247A Abandoned CA2872247A1 (en)	2012-05-08	2013-04-11	Turbine airfoil trailing edge bifurcated cooling holes

Country Status (7)

Country	Link
US (1)	US20130302177A1 (de)
EP (1)	EP2855851A2 (de)
JP (1)	JP2015516053A (de)
CN (1)	CN104285039A (de)
BR (1)	BR112014026871A2 (de)
CA (1)	CA2872247A1 (de)
WO (1)	WO2014011276A2 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US10107107B2 (en) *	2012-06-28	2018-10-23	United Technologies Corporation	Gas turbine engine component with discharge slot having oval geometry
US9732617B2 (en)	2013-11-26	2017-08-15	General Electric Company	Cooled airfoil trailing edge and method of cooling the airfoil trailing edge
EP2921647A1 (de)	2014-03-20	2015-09-23	Alstom Technology Ltd	Gasturbinenschaufel mit gekrümmter Eintritts- und Austrittskante
US9638046B2 (en) *	2014-06-12	2017-05-02	Pratt & Whitney Canada Corp.	Airfoil with variable land width at trailing edge
US10301954B2 (en) *	2016-01-08	2019-05-28	General Electric Company	Turbine airfoil trailing edge cooling passage
US10260354B2 (en)	2016-02-12	2019-04-16	General Electric Company	Airfoil trailing edge cooling
KR101853550B1 (ko) *	2016-08-22	2018-04-30	두산중공업 주식회사	가스 터빈 블레이드
US10570747B2 (en) *	2017-10-02	2020-02-25	DOOSAN Heavy Industries Construction Co., LTD	Enhanced film cooling system
US10787932B2 (en) *	2018-07-13	2020-09-29	Honeywell International Inc.	Turbine blade with dust tolerant cooling system
JP7362997B2 (ja) *	2021-06-24	2023-10-18	ドゥサンエナービリティーカンパニーリミテッド	タービンブレードおよびこれを含むタービン
CN114776388B (zh) *	2022-05-26	2022-09-23	中国航发四川燃气涡轮研究院	航空发动机涡轮叶片尾缘主动强化冷却结构
FR3166168A1 (fr) *	2024-09-06	2026-03-13	Safran Aircraft Engines	Circuit de refroidissement interne d’une aube de turbomachine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5368441A (en) *	1992-11-24	1994-11-29	United Technologies Corporation	Turbine airfoil including diffusing trailing edge pedestals
JP2000230402A (ja) *	1999-02-08	2000-08-22	Toshiba Corp	温度制御構造を有する流体機器、同機器を適用したガスタービン、ガスタービン用燃焼器および冷凍サイクル装置
US6234754B1 (en) *	1999-08-09	2001-05-22	United Technologies Corporation	Coolable airfoil structure
US6254334B1 (en) *	1999-10-05	2001-07-03	United Technologies Corporation	Method and apparatus for cooling a wall within a gas turbine engine
US6969230B2 (en) *	2002-12-17	2005-11-29	General Electric Company	Venturi outlet turbine airfoil
US6890154B2 (en) *	2003-08-08	2005-05-10	United Technologies Corporation	Microcircuit cooling for a turbine blade
FR2864990B1 (fr) *	2004-01-14	2008-02-22	Snecma Moteurs	Perfectionnements apportes aux fentes d'evacuation de l'air de refroidissement d'aubes de turbine haute-pression
US7246999B2 (en) *	2004-10-06	2007-07-24	General Electric Company	Stepped outlet turbine airfoil
US7156620B2 (en) *	2004-12-21	2007-01-02	Pratt & Whitney Canada Corp.	Internally cooled gas turbine airfoil and method
US7575414B2 (en) *	2005-04-01	2009-08-18	General Electric Company	Turbine nozzle with trailing edge convection and film cooling
US7503749B2 (en) *	2005-04-01	2009-03-17	General Electric Company	Turbine nozzle with trailing edge convection and film cooling
US7438527B2 (en) *	2005-04-22	2008-10-21	United Technologies Corporation	Airfoil trailing edge cooling
US8096771B2 (en) *	2008-09-25	2012-01-17	Siemens Energy, Inc.	Trailing edge cooling slot configuration for a turbine airfoil
US20110268583A1 (en) *	2010-04-30	2011-11-03	General Electric Company	Airfoil trailing edge and method of manufacturing the same
US8613597B1 (en) *	2011-01-17	2013-12-24	Florida Turbine Technologies, Inc.	Turbine blade with trailing edge cooling

2012
- 2012-05-08 US US13/466,508 patent/US20130302177A1/en not_active Abandoned
2013
- 2013-04-11 BR BR112014026871A patent/BR112014026871A2/pt not_active IP Right Cessation
- 2013-04-11 CN CN201380024105.4A patent/CN104285039A/zh active Pending
- 2013-04-11 WO PCT/US2013/036056 patent/WO2014011276A2/en not_active Ceased
- 2013-04-11 EP EP13785963.3A patent/EP2855851A2/de not_active Withdrawn
- 2013-04-11 JP JP2015511481A patent/JP2015516053A/ja active Pending
- 2013-04-11 CA CA2872247A patent/CA2872247A1/en not_active Abandoned

Also Published As

Publication number	Publication date
US20130302177A1 (en)	2013-11-14
CN104285039A (zh)	2015-01-14
BR112014026871A2 (pt)	2017-07-11
WO2014011276A2 (en)	2014-01-16
WO2014011276A3 (en)	2014-03-20
JP2015516053A (ja)	2015-06-04
EP2855851A2 (de)	2015-04-08

Legal Events

Date	Code	Title	Description
2017-05-23	FZDE	Dead	Effective date: 20170411

Publication	Publication Date	Title
CA2867847C (en)	2017-03-28	Turbine airfoil trailing edge cooling slots
US9145773B2 (en)	2015-09-29	Asymmetrically shaped trailing edge cooling holes
US20130302177A1 (en)	2013-11-14	Turbine airfoil trailing edge bifurcated cooling holes
US9017026B2 (en)	2015-04-28	Turbine airfoil trailing edge cooling slots
US20130302176A1 (en)	2013-11-14	Turbine airfoil trailing edge cooling slot
US20130302179A1 (en)	2013-11-14	Turbine airfoil trailing edge cooling hole plug and slot
US7246999B2 (en)	2007-07-24	Stepped outlet turbine airfoil
CN1840859B (zh)	2012-08-08	带有渐缩后缘区的涡轮翼片