CA2872251A1 - Turbine airfoil trailing edge cooling hole plug and slot - Google Patents

Turbine airfoil trailing edge cooling hole plug and slot Download PDF

Info

Publication number
CA2872251A1
CA2872251A1 CA2872251A CA2872251A CA2872251A1 CA 2872251 A1 CA2872251 A1 CA 2872251A1 CA 2872251 A CA2872251 A CA 2872251A CA 2872251 A CA2872251 A CA 2872251A CA 2872251 A1 CA2872251 A1 CA 2872251A1
Authority
CA
Canada
Prior art keywords
slot
trailing edge
section
sidewalls
spanwise
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
CA2872251A
Other languages
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.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of CA2872251A1 publication Critical patent/CA2872251A1/en
Abandoned legal-status Critical Current

Links

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
    • F01D5/186—Film 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
    • 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
    • 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
    • F01D5/188—Convection cooling with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall
    • 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
    • F01D5/188—Convection cooling with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall
    • F01D5/189—Convection cooling with an insert in the blade cavity to guide the cooling fluid, e.g. forming a separation wall the insert having a tubular cross-section, e.g. airfoil shape
    • 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)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A turbine airfoil (12) includes pressure and suction sidewalls (42, 44) extending along a span (S) from a base (34) to a tip (36). Spanwise spaced apart trailing edge cooling holes (30) disposed in pressure sidewall (42). All or a plurality of cooling holes (30) end at a trailing edge cooling slot (66) extending chordally substantially to an airfoil trailing edge (TE). Each cooling hole (30) includes a curved inlet (70), a metering section (100) with a constant area and constant width flow cross section (74), and a spanwise diverging section (102) leading into slot (66). Axial partitions (68) extend chordally between and radially separate cooling holes (30) along span (S). Aft ends (86) of partitions (68) include swept boat tails (88). Upper and lower deck sidewalls (136, 138) spanwise bound a deck (130) of slot (66) and extend outward to an external surface (43) of pressure sidewall (42). Fillets (62) between sidewalls (136, 138) and deck (130) have fillet radii (RF) substantially the same size as bottom corner radii (RT) of flow cross section (74) of diverging sections (102) adjacent bottom corner radii (RT).
CA2872251A 2012-05-09 2013-04-12 Turbine airfoil trailing edge cooling hole plug and slot Abandoned CA2872251A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201261644618P 2012-05-09 2012-05-09
US61/644,618 2012-05-09
US13/470,820 2012-05-14
US13/470,820 US20130302179A1 (en) 2012-05-09 2012-05-14 Turbine airfoil trailing edge cooling hole plug and slot
PCT/US2013/036319 WO2013169435A1 (en) 2012-05-09 2013-04-12 Turbine airfoil trailing edge cooling hole plug and slot

Publications (1)

Publication Number Publication Date
CA2872251A1 true CA2872251A1 (en) 2013-11-14

Family

ID=49548743

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2872251A Abandoned CA2872251A1 (en) 2012-05-09 2013-04-12 Turbine airfoil trailing edge cooling hole plug and slot

Country Status (7)

Country Link
US (1) US20130302179A1 (en)
EP (1) EP2861828A1 (en)
JP (1) JP2015516538A (en)
CN (1) CN104285037A (en)
BR (1) BR112014027901A2 (en)
CA (1) CA2872251A1 (en)
WO (1) WO2013169435A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9732617B2 (en) 2013-11-26 2017-08-15 General Electric Company Cooled airfoil trailing edge and method of cooling the airfoil trailing edge
CN106536858B (en) * 2014-07-24 2019-01-01 西门子公司 With the turbine airfoil cooling system for extending stream block device along the span
US20160169004A1 (en) * 2014-12-15 2016-06-16 United Technologies Corporation Cooling passages for gas turbine engine component
US9995147B2 (en) 2015-02-11 2018-06-12 United Technologies Corporation Blade tip cooling arrangement
US10030525B2 (en) * 2015-03-18 2018-07-24 General Electric Company Turbine engine component with diffuser holes
EP3109404A1 (en) * 2015-06-23 2016-12-28 Siemens Aktiengesellschaft Turbine assembly
US10227876B2 (en) * 2015-12-07 2019-03-12 General Electric Company Fillet optimization for turbine airfoil
US10301954B2 (en) 2016-01-08 2019-05-28 General Electric Company Turbine airfoil trailing edge cooling passage
KR20180082118A (en) * 2017-01-10 2018-07-18 두산중공업 주식회사 Cut-back of blades or vanes of gas turbine
FR3062675B1 (en) * 2017-02-07 2021-01-15 Safran Helicopter Engines HELICOPTER TURBINE HIGH PRESSURE VENTILATED VANE INCLUDING UPSTREAM DUCT AND CENTRAL COOLING CAVITY
EP3645838B1 (en) 2017-06-30 2022-06-01 Siemens Energy Global GmbH & Co. KG Turbine airfoil with trailing edge features and casting core
EP3492702A1 (en) * 2017-11-29 2019-06-05 Siemens Aktiengesellschaft Internally-cooled turbomachine component
CN112523810B (en) * 2020-12-14 2021-08-20 北京航空航天大学 Triangular column type flow guide structure applied to turbine blade trailing edge half-splitting seam

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303374A (en) * 1978-12-15 1981-12-01 General Electric Company Film cooled airfoil body
US5368441A (en) * 1992-11-24 1994-11-29 United Technologies Corporation Turbine airfoil including diffusing trailing edge pedestals
FR2782118B1 (en) * 1998-08-05 2000-09-15 Snecma COOLED TURBINE BLADE WITH LEADING EDGE
US6402470B1 (en) * 1999-10-05 2002-06-11 United Technologies Corporation Method and apparatus for cooling a wall within a gas turbine engine
EP1213442B1 (en) * 2000-12-05 2009-03-11 United Technologies Corporation Rotor blade
US6612811B2 (en) * 2001-12-12 2003-09-02 General Electric Company Airfoil for a turbine nozzle of a gas turbine engine and method of making same
FR2864990B1 (en) * 2004-01-14 2008-02-22 Snecma Moteurs IMPROVEMENTS IN THE HIGH-PRESSURE TURBINE AIR COOLING AIR EXHAUST DUCTING SLOTS
US7246992B2 (en) * 2005-01-28 2007-07-24 General Electric Company High efficiency fan cooling holes for turbine airfoil
US7374401B2 (en) * 2005-03-01 2008-05-20 General Electric Company Bell-shaped fan cooling holes for turbine airfoil
US7575414B2 (en) * 2005-04-01 2009-08-18 General Electric Company Turbine nozzle with trailing edge convection and film cooling
US7371048B2 (en) * 2005-05-27 2008-05-13 United Technologies Corporation Turbine blade trailing edge construction
JP5436457B2 (en) * 2008-03-07 2014-03-05 アルストム テクノロジー リミテッド Wings for gas turbine

Also Published As

Publication number Publication date
CN104285037A (en) 2015-01-14
JP2015516538A (en) 2015-06-11
EP2861828A1 (en) 2015-04-22
WO2013169435A1 (en) 2013-11-14
US20130302179A1 (en) 2013-11-14
BR112014027901A2 (en) 2017-06-27

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Legal Events

Date Code Title Description
FZDE Discontinued

Effective date: 20180412