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GB1426049A - Rotor blade for a gas turbine engine - Google Patents

Rotor blade for a gas turbine engine

Info

Publication number
GB1426049A
GB1426049A GB4859872A GB4859872A GB1426049A GB 1426049 A GB1426049 A GB 1426049A GB 4859872 A GB4859872 A GB 4859872A GB 4859872 A GB4859872 A GB 4859872A GB 1426049 A GB1426049 A GB 1426049A
Authority
GB
United Kingdom
Prior art keywords
blade
cap
turbine engine
gas turbine
rotor blade
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
GB4859872A
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB4859872A priority Critical patent/GB1426049A/en
Priority to IT29426/73A priority patent/IT993440B/en
Priority to DE19732350624 priority patent/DE2350624A1/en
Priority to FR7337436A priority patent/FR2203935B1/fr
Priority to JP48117731A priority patent/JPS4993712A/ja
Publication of GB1426049A publication Critical patent/GB1426049A/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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • F01D5/225—Blade-to-blade connections, e.g. for damping vibrations by shrouding
    • 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
    • F05D2240/80—Platforms for stationary or moving blades
    • F05D2240/81—Cooled platforms
    • 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
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/205—Cooling fluid recirculation, i.e. after cooling one or more components is the cooling fluid recovered and used elsewhere for other purposes

Landscapes

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

Abstract

1426049 Turbomachine blades ROLLSROYCE (1971) Ltd 20 Sept 1973 [21 Oct 1972] 48598/72 Heading FIT A turbomachine blade, e.g. for the turbine or compressor of a gas turbine engine, is cooled by internal air channels passing from root to tip of the blade, and carries a cap 20 formed with a duct 24 directing the exhausted cooling gas in a direction to directly augment the driving load on the blade. As shown, the cap 20 is formed on a shroud 19 and includes sealing fins 21, 22 and a deflector 23 to utilize leakage flow over the blade tips to drive the blade, as described in Specification 1423833. The cap may include a plurality of outlet ducts in the form of channels (32), Fig. 5, (not shown) to direct the exhausted cooling air and passages allowing the cooling air to cool the blade shroud before being discharged.
GB4859872A 1972-10-21 1972-10-21 Rotor blade for a gas turbine engine Expired GB1426049A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB4859872A GB1426049A (en) 1972-10-21 1972-10-21 Rotor blade for a gas turbine engine
IT29426/73A IT993440B (en) 1972-10-21 1973-09-26 ROTOR VANE FOR GAS TURBINE ENGINES
DE19732350624 DE2350624A1 (en) 1972-10-21 1973-10-09 ROTOR BLADE FOR GAS TURBINE JETS
FR7337436A FR2203935B1 (en) 1972-10-21 1973-10-19
JP48117731A JPS4993712A (en) 1972-10-21 1973-10-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4859872A GB1426049A (en) 1972-10-21 1972-10-21 Rotor blade for a gas turbine engine

Publications (1)

Publication Number Publication Date
GB1426049A true GB1426049A (en) 1976-02-25

Family

ID=10449198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4859872A Expired GB1426049A (en) 1972-10-21 1972-10-21 Rotor blade for a gas turbine engine

Country Status (5)

Country Link
JP (1) JPS4993712A (en)
DE (1) DE2350624A1 (en)
FR (1) FR2203935B1 (en)
GB (1) GB1426049A (en)
IT (1) IT993440B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127358A (en) * 1976-04-08 1978-11-28 Rolls-Royce Limited Blade or vane for a gas turbine engine
US4761116A (en) * 1987-05-11 1988-08-02 General Electric Company Turbine blade with tip vent
US4948338A (en) * 1988-09-30 1990-08-14 Rolls-Royce Plc Turbine blade with cooled shroud abutment surface
GB2291935A (en) * 1992-10-27 1996-02-07 United Technologies Corp Tip seal and anti-contamination arrangement for air-cooled turbine blades
EP0805263A4 (en) * 1995-11-21 1999-10-20 Mitsubishi Heavy Ind Ltd Vane for gas turbine
US6142739A (en) * 1996-04-12 2000-11-07 Rolls-Royce Plc Turbine rotor blades
US6152694A (en) * 1997-06-26 2000-11-28 Mitsubishi Heavy Industries, Ltd. Tip shroud for moving blades of gas turbine
US6499950B2 (en) * 1999-04-01 2002-12-31 Fred Thomas Willett Cooling circuit for a gas turbine bucket and tip shroud
EP1083299A3 (en) * 1999-09-07 2004-03-17 General Electric Company Internally cooled blade tip shroud
EP1426554A1 (en) * 2002-12-06 2004-06-09 Rolls-Royce Plc Blade cooling
US6761534B1 (en) * 1999-04-05 2004-07-13 General Electric Company Cooling circuit for a gas turbine bucket and tip shroud
GB2409006A (en) * 2003-12-11 2005-06-15 Rolls Royce Plc Turbine rotor blade with gutter to promote tip sealing
EP1591625A1 (en) * 2004-04-30 2005-11-02 ALSTOM Technology Ltd Gas turbine blade shroud
EP2211019A2 (en) 2009-01-26 2010-07-28 Rolls-Royce PLC Rotor blade
CN104929699A (en) * 2015-06-05 2015-09-23 赵军 Novel supercharged sealing labyrinth

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224011A (en) * 1977-10-08 1980-09-23 Rolls-Royce Limited Cooled rotor blade for a gas turbine engine
US4411597A (en) * 1981-03-20 1983-10-25 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Tip cap for a rotor blade
DE3308140C2 (en) * 1983-03-08 1985-12-19 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Multi-stage gas turbine
FR2656897B1 (en) * 1990-01-10 1994-06-17 Snecma PROCESS FOR PRODUCING TURBINE DISTRIBUTOR SECTORS.
JP2007321721A (en) * 2006-06-05 2007-12-13 Toshiba Corp Axial turbine stage and axial turbine
JP2011106474A (en) * 2011-03-04 2011-06-02 Toshiba Corp Axial flow turbine stage and axial flow turbine
US10502069B2 (en) * 2017-06-07 2019-12-10 General Electric Company Turbomachine rotor blade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE491738C (en) * 1929-02-28 1930-02-12 Maschf Augsburg Nuernberg Ag Device for cooling the rotor blades of gas turbines, in which the coolant is guided under pressure through the hollow rotor blades
DE858335C (en) * 1943-12-11 1952-12-04 Versuchsanstalt Fuer Luftfahrt Reduction of the cooling air losses of internally cooled turbines
FR919016A (en) * 1944-12-18 1947-02-25 Oerlikon Maschf Turbo-cooled machine

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127358A (en) * 1976-04-08 1978-11-28 Rolls-Royce Limited Blade or vane for a gas turbine engine
US4761116A (en) * 1987-05-11 1988-08-02 General Electric Company Turbine blade with tip vent
US4948338A (en) * 1988-09-30 1990-08-14 Rolls-Royce Plc Turbine blade with cooled shroud abutment surface
GB2291935A (en) * 1992-10-27 1996-02-07 United Technologies Corp Tip seal and anti-contamination arrangement for air-cooled turbine blades
GB2291935B (en) * 1992-10-27 1999-02-24 United Technologies Corp Tip seal and anti-contamination for turbine blades
EP0805263A4 (en) * 1995-11-21 1999-10-20 Mitsubishi Heavy Ind Ltd Vane for gas turbine
CN1076782C (en) * 1995-11-21 2001-12-26 三菱重工业株式会社 Vane for gas turbine
US6142739A (en) * 1996-04-12 2000-11-07 Rolls-Royce Plc Turbine rotor blades
US6152694A (en) * 1997-06-26 2000-11-28 Mitsubishi Heavy Industries, Ltd. Tip shroud for moving blades of gas turbine
EP0928880A4 (en) * 1997-06-26 2000-11-29 Mitsubishi Heavy Ind Ltd Tip shroud for moving blades of gas turbine
US6499950B2 (en) * 1999-04-01 2002-12-31 Fred Thomas Willett Cooling circuit for a gas turbine bucket and tip shroud
US6761534B1 (en) * 1999-04-05 2004-07-13 General Electric Company Cooling circuit for a gas turbine bucket and tip shroud
EP1083299A3 (en) * 1999-09-07 2004-03-17 General Electric Company Internally cooled blade tip shroud
EP1426554A1 (en) * 2002-12-06 2004-06-09 Rolls-Royce Plc Blade cooling
GB2409006A (en) * 2003-12-11 2005-06-15 Rolls Royce Plc Turbine rotor blade with gutter to promote tip sealing
GB2409006B (en) * 2003-12-11 2006-05-17 Rolls Royce Plc Tip sealing for a turbine rotor blade
US7118329B2 (en) 2003-12-11 2006-10-10 Rolls-Royce Plc Tip sealing for a turbine rotor blade
EP1591625A1 (en) * 2004-04-30 2005-11-02 ALSTOM Technology Ltd Gas turbine blade shroud
WO2005106206A1 (en) * 2004-04-30 2005-11-10 Alstom Technology Ltd Gas turbine blade shroud
US7628587B2 (en) 2004-04-30 2009-12-08 Alstom Technology Ltd Gas turbine blade shroud
EP2211019A2 (en) 2009-01-26 2010-07-28 Rolls-Royce PLC Rotor blade
CN104929699A (en) * 2015-06-05 2015-09-23 赵军 Novel supercharged sealing labyrinth
CN104929699B (en) * 2015-06-05 2016-05-11 中国民用航空飞行学院 A pressurized sealing grate

Also Published As

Publication number Publication date
FR2203935B1 (en) 1977-05-27
DE2350624A1 (en) 1974-05-09
FR2203935A1 (en) 1974-05-17
JPS4993712A (en) 1974-09-06
IT993440B (en) 1975-09-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees