GB1282796A - Fluid cooled turbine blade - Google Patents

Fluid cooled turbine blade

Info

Publication number
GB1282796A
GB1282796A GB57975/70A GB5797570A GB1282796A GB 1282796 A GB1282796 A GB 1282796A GB 57975/70 A GB57975/70 A GB 57975/70A GB 5797570 A GB5797570 A GB 5797570A GB 1282796 A GB1282796 A GB 1282796A
Authority
GB
United Kingdom
Prior art keywords
passages
dec
cut
cooling air
point
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.)
Expired
Application number
GB57975/70A
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of GB1282796A publication Critical patent/GB1282796A/en
Expired 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
    • F01D5/187—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
    • F01D5/20—Specially-shaped blade tips to seal space between tips and stator

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1282796 Turbine blades WESTINGHOUSE ELECTRIC CORP 7 Dec 1970 [23 Dec 1969] 57975/70 Heading FIT A gas turbine rotor blade has longitudinal cooling air-passages 26 extending therethrough from the root to adjacent the tip and opening into a tip chamber 36 defining a region of substantially uniform pressure. The cooling air thence exhausts into the main gas stream through a cut-away portion in the wall 38 of chamber 36, the cut-away extending from trailing edge 22 to a point A at the mid-chord region on the low-pressure side 30 of the blade. The point A is slightly downstream of the throat (B) Fig. 2 (not shown) defined between adjacent blades. The coolant flow area at crosssection C is substantially greater than the combined cross-sections of passages 26 upstream of C.
GB57975/70A 1969-12-23 1970-12-07 Fluid cooled turbine blade Expired GB1282796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88754469A 1969-12-23 1969-12-23

Publications (1)

Publication Number Publication Date
GB1282796A true GB1282796A (en) 1972-07-26

Family

ID=25391380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57975/70A Expired GB1282796A (en) 1969-12-23 1970-12-07 Fluid cooled turbine blade

Country Status (7)

Country Link
US (1) US3635585A (en)
BE (1) BE760728A (en)
CH (1) CH533760A (en)
DE (1) DE2060123B2 (en)
FR (1) FR2074130A5 (en)
GB (1) GB1282796A (en)
NL (1) NL7017527A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204645A (en) * 1987-05-11 1988-11-16 Gen Electric Turbine blade with tip vent
GB2270125A (en) * 1992-08-25 1994-03-02 Gen Electric Tip cooled turbine blade.
US6142739A (en) * 1996-04-12 2000-11-07 Rolls-Royce Plc Turbine rotor blades
US7540705B2 (en) 2006-02-01 2009-06-02 Emshey Garry Horizontal multi-blade wind turbine

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE794194A (en) * 1972-01-18 1973-07-18 Bbc Sulzer Turbomaschinen COOLED MOBILE BLADE FOR GAS TURBINES
GB1423833A (en) * 1972-04-20 1976-02-04 Rolls Royce Rotor blades for fluid flow machines
US4606701A (en) * 1981-09-02 1986-08-19 Westinghouse Electric Corp. Tip structure for a cooled turbine rotor blade
US4893987A (en) * 1987-12-08 1990-01-16 General Electric Company Diffusion-cooled blade tip cap
JP3137527B2 (en) * 1994-04-21 2001-02-26 三菱重工業株式会社 Gas turbine blade tip cooling system
US5503527A (en) * 1994-12-19 1996-04-02 General Electric Company Turbine blade having tip slot
US5980209A (en) * 1997-06-27 1999-11-09 General Electric Co. Turbine blade with enhanced cooling and profile optimization
US5927946A (en) * 1997-09-29 1999-07-27 General Electric Company Turbine blade having recuperative trailing edge tip cooling
US6059530A (en) * 1998-12-21 2000-05-09 General Electric Company Twin rib turbine blade
US6652235B1 (en) * 2002-05-31 2003-11-25 General Electric Company Method and apparatus for reducing turbine blade tip region temperatures
US7001151B2 (en) * 2004-03-02 2006-02-21 General Electric Company Gas turbine bucket tip cap
US7513743B2 (en) * 2006-05-02 2009-04-07 Siemens Energy, Inc. Turbine blade with wavy squealer tip rail
US7686578B2 (en) * 2006-08-21 2010-03-30 General Electric Company Conformal tip baffle airfoil
US7607893B2 (en) * 2006-08-21 2009-10-27 General Electric Company Counter tip baffle airfoil
US8500396B2 (en) * 2006-08-21 2013-08-06 General Electric Company Cascade tip baffle airfoil
US8632311B2 (en) * 2006-08-21 2014-01-21 General Electric Company Flared tip turbine blade
US8512003B2 (en) * 2006-08-21 2013-08-20 General Electric Company Tip ramp turbine blade
US7726944B2 (en) * 2006-09-20 2010-06-01 United Technologies Corporation Turbine blade with improved durability tip cap
US7597539B1 (en) 2006-09-27 2009-10-06 Florida Turbine Technologies, Inc. Turbine blade with vortex cooled end tip rail
US8425183B2 (en) * 2006-11-20 2013-04-23 General Electric Company Triforial tip cavity airfoil
US8011889B1 (en) * 2007-09-07 2011-09-06 Florida Turbine Technologies, Inc. Turbine blade with trailing edge tip corner cooling
JP5029957B2 (en) * 2007-11-01 2012-09-19 株式会社Ｉｈｉ Turbine blade with squealer
GB0724612D0 (en) * 2007-12-19 2008-01-30 Rolls Royce Plc Rotor blades
JP5031103B2 (en) * 2008-10-30 2012-09-19 三菱重工業株式会社 Turbine blades with tip thinning
GB0901129D0 (en) * 2009-01-26 2009-03-11 Rolls Royce Plc Rotor blade
US8186965B2 (en) * 2009-05-27 2012-05-29 General Electric Company Recovery tip turbine blade
GB201006450D0 (en) * 2010-04-19 2010-06-02 Rolls Royce Plc Blades
US9051843B2 (en) 2011-10-28 2015-06-09 General Electric Company Turbomachine blade including a squeeler pocket
US8992179B2 (en) 2011-10-28 2015-03-31 General Electric Company Turbine of a turbomachine
US9255480B2 (en) 2011-10-28 2016-02-09 General Electric Company Turbine of a turbomachine
US8967959B2 (en) 2011-10-28 2015-03-03 General Electric Company Turbine of a turbomachine
US9359902B2 (en) 2013-06-28 2016-06-07 Siemens Energy, Inc. Turbine airfoil with ambient cooling system
CN104775854A (en) * 2015-04-23 2015-07-15 华能国际电力股份有限公司 Movable blade top structure capable of inhibiting blade top leakage and reducing blade top temperature
US10107108B2 (en) 2015-04-29 2018-10-23 General Electric Company Rotor blade having a flared tip
US10329922B2 (en) * 2016-02-09 2019-06-25 General Electric Company Gas turbine engine airfoil
EP3301262B1 (en) * 2016-09-14 2019-08-14 Rolls-Royce plc Blade
EP3301261B1 (en) * 2016-09-14 2019-07-17 Rolls-Royce plc Blade
US11118462B2 (en) * 2019-01-24 2021-09-14 Pratt & Whitney Canada Corp. Blade tip pocket rib
US11371359B2 (en) 2020-11-26 2022-06-28 Pratt & Whitney Canada Corp. Turbine blade for a gas turbine engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE920641C (en) * 1943-07-15 1954-11-25 Maschf Augsburg Nuernberg Ag Cooled hollow blade, especially for gas turbines
US2888243A (en) * 1956-10-22 1959-05-26 Pollock Robert Stephen Cooled turbine blade
US3057597A (en) * 1959-08-20 1962-10-09 Jr Andre J Meyer Modification and improvements to cooled blades
US3164367A (en) * 1962-11-21 1965-01-05 Gen Electric Gas turbine blade
US3533712A (en) * 1966-02-26 1970-10-13 Gen Electric Cooled vane structure for high temperature turbines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204645A (en) * 1987-05-11 1988-11-16 Gen Electric Turbine blade with tip vent
GB2270125A (en) * 1992-08-25 1994-03-02 Gen Electric Tip cooled turbine blade.
GB2270125B (en) * 1992-08-25 1995-12-06 Gen Electric Tip cooled blade
US6142739A (en) * 1996-04-12 2000-11-07 Rolls-Royce Plc Turbine rotor blades
US7540705B2 (en) 2006-02-01 2009-06-02 Emshey Garry Horizontal multi-blade wind turbine

Also Published As

Publication number Publication date
US3635585A (en) 1972-01-18
BE760728A (en) 1971-06-23
CH533760A (en) 1973-02-15
DE2060123B2 (en) 1979-04-26
FR2074130A5 (en) 1971-10-01
NL7017527A (en) 1971-06-25
DE2060123A1 (en) 1971-07-01

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee