GB1357713A - Cooled rotor blades for gas turbines - Google Patents

Cooled rotor blades for gas turbines

Info

Publication number
GB1357713A
GB1357713A GB248073A GB248073A GB1357713A GB 1357713 A GB1357713 A GB 1357713A GB 248073 A GB248073 A GB 248073A GB 248073 A GB248073 A GB 248073A GB 1357713 A GB1357713 A GB 1357713A
Authority
GB
United Kingdom
Prior art keywords
exits
trailing edge
duct
jan
rotor blades
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
GB248073A
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.)
Brown Boveri Sulzer Turbomaschinen AG
Original Assignee
Brown Boveri Sulzer Turbomaschinen AG
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 Brown Boveri Sulzer Turbomaschinen AG filed Critical Brown Boveri Sulzer Turbomaschinen AG
Publication of GB1357713A publication Critical patent/GB1357713A/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
    • 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
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/126—Baffles or ribs

Landscapes

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

Abstract

1357713 Turbine blades BROWN BOVERISULZER TURBOMACHINERY Ltd 17 Jan 1973 [18 Jan 1972] 2480/73 Heading FIT A gas turbine rotor blade has a cooling air duct 9 extending along leading edge 10, terminating in a trough 11 formed in the blade tip and having an air outlet on the convex side adjacent trailing edge 17. Additional ducts 15, 16 separated by partition 18 direct cooling air from root chamber 8 to exits 19, 20 respectively either immediately at trailing edge 17 or on one or other side thereof. Exits 19, 20 are provided with restrictors and guides 21, 22. Ducts 15, 16 may be finned. In a modification, Figs. 5 to 7 (not shown) duct 16 is not provided but duct 15 incorporates a reversal through 180 degrees at the blade tip to form a second part (25) which extends back towards the root and has trailing edge exits 19.
GB248073A 1972-01-18 1973-01-17 Cooled rotor blades for gas turbines Expired GB1357713A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH69872 1972-01-18

Publications (1)

Publication Number Publication Date
GB1357713A true GB1357713A (en) 1974-06-26

Family

ID=4193074

Family Applications (1)

Application Number Title Priority Date Filing Date
GB248073A Expired GB1357713A (en) 1972-01-18 1973-01-17 Cooled rotor blades for gas turbines

Country Status (11)

Country Link
US (1) US3885609A (en)
JP (1) JPS5145727B2 (en)
BE (1) BE794194A (en)
CA (1) CA979810A (en)
CH (1) CH547430A (en)
DE (1) DE2202857C2 (en)
FR (1) FR2168801A5 (en)
GB (1) GB1357713A (en)
IT (1) IT978244B (en)
NL (1) NL7300698A (en)
SE (1) SE381312B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279705A (en) * 1985-07-24 1995-01-11 Rolls Royce Plc Cooling of turbine blades of a gas turbine engine
US6142739A (en) * 1996-04-12 2000-11-07 Rolls-Royce Plc Turbine rotor blades

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1560683A (en) * 1972-11-28 1980-02-06 Rolls Royce Turbine blade
CH580750A5 (en) * 1974-07-17 1976-10-15 Bbc Sulzer Turbomaschinen
US4128928A (en) * 1976-12-29 1978-12-12 General Electric Company Method of forming a curved trailing edge cooling slot
JPS5637491Y2 (en) * 1977-03-07 1981-09-02
US4278400A (en) * 1978-09-05 1981-07-14 United Technologies Corporation Coolable rotor blade
US4303374A (en) * 1978-12-15 1981-12-01 General Electric Company Film cooled airfoil body
FR2476207A1 (en) * 1980-02-19 1981-08-21 Snecma IMPROVEMENT TO AUBES OF COOLED TURBINES
JPS6216338Y2 (en) * 1981-02-14 1987-04-24
GB2165315B (en) * 1984-10-04 1987-12-31 Rolls Royce Improvements in or relating to hollow fluid cooled turbine blades
US4601638A (en) * 1984-12-21 1986-07-22 United Technologies Corporation Airfoil trailing edge cooling arrangement
US5772397A (en) * 1996-05-08 1998-06-30 Alliedsignal Inc. Gas turbine airfoil with aft internal cooling
US5601399A (en) * 1996-05-08 1997-02-11 Alliedsignal Inc. Internally cooled gas turbine vane
FR2782118B1 (en) * 1998-08-05 2000-09-15 Snecma COOLED TURBINE BLADE WITH LEADING EDGE
EP1099825A1 (en) * 1999-11-12 2001-05-16 Siemens Aktiengesellschaft Turbine blade and production method therefor
EP1167689A1 (en) * 2000-06-21 2002-01-02 Siemens Aktiengesellschaft Configuration of a coolable turbine blade
JP2002221005A (en) * 2001-01-26 2002-08-09 Ishikawajima Harima Heavy Ind Co Ltd Cooling turbine blade
US6652235B1 (en) * 2002-05-31 2003-11-25 General Electric Company Method and apparatus for reducing turbine blade tip region temperatures
GB2411698A (en) * 2004-03-03 2005-09-07 Rolls Royce Plc Coolant flow control in gas turbine engine
US7210906B2 (en) * 2004-08-10 2007-05-01 Pratt & Whitney Canada Corp. Internally cooled gas turbine airfoil and method
FR2924155B1 (en) * 2007-11-26 2014-02-14 Snecma TURBINE DAWN
WO2009109462A1 (en) * 2008-03-07 2009-09-11 Alstom Technology Ltd Vane for a gas turbine
FR2954798B1 (en) * 2009-12-31 2012-03-30 Snecma AUBE WITH INTERNAL VENTILATION
WO2014009074A1 (en) * 2012-07-12 2014-01-16 Siemens Aktiengesellschaft Turbine blade for a gas turbine
US9732617B2 (en) * 2013-11-26 2017-08-15 General Electric Company Cooled airfoil trailing edge and method of cooling the airfoil trailing edge
US9771816B2 (en) 2014-05-07 2017-09-26 General Electric Company Blade cooling circuit feed duct, exhaust duct, and related cooling structure
US9638045B2 (en) 2014-05-28 2017-05-02 General Electric Company Cooling structure for stationary blade
US9909436B2 (en) 2015-07-16 2018-03-06 General Electric Company Cooling structure for stationary blade
US9822653B2 (en) 2015-07-16 2017-11-21 General Electric Company Cooling structure for stationary blade
DE102015112643A1 (en) * 2015-07-31 2017-02-02 Wobben Properties Gmbh Wind turbine rotor blade

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017159A (en) * 1956-11-23 1962-01-16 Curtiss Wright Corp Hollow blade construction
US3045965A (en) * 1959-04-27 1962-07-24 Rolls Royce Turbine blades, vanes and the like
US3420502A (en) * 1962-09-04 1969-01-07 Gen Electric Fluid-cooled airfoil
US3533712A (en) * 1966-02-26 1970-10-13 Gen Electric Cooled vane structure for high temperature turbines
US3533711A (en) * 1966-02-26 1970-10-13 Gen Electric Cooled vane structure for high temperature turbines
US3734639A (en) * 1968-01-25 1973-05-22 Gen Motors Corp Turbine cooling
US3628885A (en) * 1969-10-01 1971-12-21 Gen Electric Fluid-cooled airfoil
US3635585A (en) * 1969-12-23 1972-01-18 Westinghouse Electric Corp Gas-cooled turbine blade
US3635586A (en) * 1970-04-06 1972-01-18 Rolls Royce Method and apparatus for turbine blade cooling
US3736071A (en) * 1970-11-27 1973-05-29 Gen Electric Bucket tip/collection slot combination for open-circuit liquid-cooled gas turbines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2279705A (en) * 1985-07-24 1995-01-11 Rolls Royce Plc Cooling of turbine blades of a gas turbine engine
GB2279705B (en) * 1985-07-24 1995-06-28 Rolls Royce Plc Cooling of turbine blades for a gas turbine engine
US6142739A (en) * 1996-04-12 2000-11-07 Rolls-Royce Plc Turbine rotor blades

Also Published As

Publication number Publication date
SE381312B (en) 1975-12-01
FR2168801A5 (en) 1973-08-31
JPS4882211A (en) 1973-11-02
IT978244B (en) 1974-09-20
CH547430A (en) 1974-03-29
US3885609A (en) 1975-05-27
DE2202857B1 (en) 1973-06-20
NL7300698A (en) 1973-07-20
JPS5145727B2 (en) 1976-12-04
CA979810A (en) 1975-12-16
DE2202857C2 (en) 1974-10-17
BE794194A (en) 1973-07-18

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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