EP2703605A3 - A gas turbine blade tip omprising a metallic foam material - Google Patents

A gas turbine blade tip omprising a metallic foam material Download PDF

Info

Publication number
EP2703605A3
EP2703605A3 EP13179761.5A EP13179761A EP2703605A3 EP 2703605 A3 EP2703605 A3 EP 2703605A3 EP 13179761 A EP13179761 A EP 13179761A EP 2703605 A3 EP2703605 A3 EP 2703605A3
Authority
EP
European Patent Office
Prior art keywords
tip
casing surface
gas turbine
blade
foam material
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.)
Withdrawn
Application number
EP13179761.5A
Other languages
German (de)
French (fr)
Other versions
EP2703605A2 (en
Inventor
Ian Care
Giuseppe Zumpano
Nicholas Michael Merriman
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
Publication of EP2703605A2 publication Critical patent/EP2703605A2/en
Publication of EP2703605A3 publication Critical patent/EP2703605A3/en
Withdrawn legal-status Critical Current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
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • F01D5/282—Selecting composite materials, e.g. blades with reinforcing filaments
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Tip rub in gas turbine engines is a well-known phenomenon, and may lead to increased tip clearances, with consequent detrimental effects on the engine's performance and blade flutter margins. Heavy or repeated rubbing may cause blade tip over temperature leading to cracking and fatigue failure. The invention provides a tip for a gas turbine engine rotor blade, which under contact with the casing surface interacts with the casing surface so as to reduce the contact force and thereby reduce the energy transferred to the blade. The tip may be designed to ablate under contact with the casing surface, or to cut or abrade the casing surface, or to crush or compress of deflect under contact with the casing surface. In a preferred embodiment, the tip comprises fibre-reinforced metallic foam material.
EP13179761.5A 2012-08-29 2013-08-08 A gas turbine blade tip omprising a metallic foam material Withdrawn EP2703605A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1215299.7A GB201215299D0 (en) 2012-08-29 2012-08-29 A Metallic foam material

Publications (2)

Publication Number Publication Date
EP2703605A2 EP2703605A2 (en) 2014-03-05
EP2703605A3 true EP2703605A3 (en) 2017-06-14

Family

ID=47045505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13179761.5A Withdrawn EP2703605A3 (en) 2012-08-29 2013-08-08 A gas turbine blade tip omprising a metallic foam material

Country Status (3)

Country Link
US (1) US20140064964A1 (en)
EP (1) EP2703605A3 (en)
GB (1) GB201215299D0 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201222973D0 (en) * 2012-12-19 2013-01-30 Composite Technology & Applic Ltd An aerofoil structure
US20160177732A1 (en) * 2014-07-22 2016-06-23 United Technologies Corporation Hollow fan blade for a gas turbine engine
US20160084102A1 (en) * 2014-09-18 2016-03-24 General Electric Company Abradable seal and method for forming an abradable seal
FR3041683B1 (en) * 2015-09-28 2021-12-10 Snecma DAWN INCLUDING A FOLDED ATTACK EDGE SHIELD AND PROCESS FOR MANUFACTURING THE DAWN
FR3041684B1 (en) * 2015-09-28 2021-12-10 Snecma DAWN INCLUDING AN ATTACK EDGE SHIELD AND PROCESS FOR MANUFACTURING THE DAWN
US10458254B2 (en) * 2016-11-16 2019-10-29 General Electric Company Abradable coating composition for compressor blade and methods for forming the same
EP3495612B1 (en) * 2017-12-06 2021-05-12 Ansaldo Energia IP UK Limited Method for manufacturing composite component
FR3081914B1 (en) 2018-06-05 2020-08-28 Safran Aircraft Engines BLOWER VANE IN COMPOSITE MATERIAL WITH LARGE INTEGRATED GAME
US11686208B2 (en) 2020-02-06 2023-06-27 Rolls-Royce Corporation Abrasive coating for high-temperature mechanical systems
US11273910B2 (en) * 2020-06-19 2022-03-15 Textron Innovations Inc. Sacrificial blade tips for ducted aircraft
US11479350B2 (en) 2020-06-19 2022-10-25 Textron Innovations Inc. Tip gap monitoring systems for ducted aircraft
US11370536B2 (en) 2020-06-19 2022-06-28 Textron Innovations Inc. Tip gap control systems with active blade tips
US11407504B2 (en) 2020-06-19 2022-08-09 Textron Innovations Inc. Tip gap control systems with inner duct control surfaces
US20220136394A1 (en) * 2020-10-30 2022-05-05 Raytheon Technologies Corporation Composite fan blade leading edge sheath with encapsulating extension

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6413051B1 (en) * 2000-10-30 2002-07-02 General Electric Company Article including a composite laminated end portion with a discrete end barrier and method for making and repairing
US20060216154A1 (en) * 2004-12-22 2006-09-28 Rolls-Royce Plc Composite blade
US20100143097A1 (en) * 2006-01-21 2010-06-10 Simon Read Aerofoils for gas turbine engines
US7780420B1 (en) * 2006-11-16 2010-08-24 Florida Turbine Technologies, Inc. Turbine blade with a foam metal leading or trailing edge
EP2253803A2 (en) * 2009-05-21 2010-11-24 Rolls-Royce plc Composite aerofoil blade with wear-resistant tip
EP2253806A2 (en) * 2009-05-21 2010-11-24 Rolls-Royce plc Fiber-reinforced composite aerofoil blade
US20120063909A1 (en) * 2010-09-09 2012-03-15 Rolls-Royce Plc Fan blade with winglet
US20120196146A1 (en) * 2010-12-30 2012-08-02 Edward Claude Rice Gas turbine engine components including carbon nanofiber composites

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1237532A (en) * 1967-06-24 1971-06-30 Rolls Royce Improvements in turbines and compresser rotors
FR2195255A5 (en) * 1972-08-04 1974-03-01 Snecma
US4098559A (en) * 1976-07-26 1978-07-04 United Technologies Corporation Paired blade assembly
GB2166202B (en) * 1984-10-30 1988-07-20 Rolls Royce Hollow aerofoil blade
GB2192238B (en) * 1986-07-02 1990-05-23 Rolls Royce Plc Gas turbine engine power turbine
FR2682992B1 (en) * 1991-10-23 1995-04-21 Snecma BLADE OF A TURBOMACHINE IN A MATRIX COMPOSITE MATRIX BASED ON AN ELASTOMER.
US5735673A (en) * 1996-12-04 1998-04-07 United Technologies Corporation Turbine engine rotor blade pair
GB0424481D0 (en) * 2004-11-05 2004-12-08 Rolls Royce Plc Composite aerofoil
GB0428368D0 (en) * 2004-12-24 2005-02-02 Rolls Royce Plc A composite blade
US7547194B2 (en) * 2006-07-31 2009-06-16 General Electric Company Rotor blade and method of fabricating the same

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6413051B1 (en) * 2000-10-30 2002-07-02 General Electric Company Article including a composite laminated end portion with a discrete end barrier and method for making and repairing
US20060216154A1 (en) * 2004-12-22 2006-09-28 Rolls-Royce Plc Composite blade
US20100143097A1 (en) * 2006-01-21 2010-06-10 Simon Read Aerofoils for gas turbine engines
US7780420B1 (en) * 2006-11-16 2010-08-24 Florida Turbine Technologies, Inc. Turbine blade with a foam metal leading or trailing edge
EP2253803A2 (en) * 2009-05-21 2010-11-24 Rolls-Royce plc Composite aerofoil blade with wear-resistant tip
EP2253806A2 (en) * 2009-05-21 2010-11-24 Rolls-Royce plc Fiber-reinforced composite aerofoil blade
US20120063909A1 (en) * 2010-09-09 2012-03-15 Rolls-Royce Plc Fan blade with winglet
US20120196146A1 (en) * 2010-12-30 2012-08-02 Edward Claude Rice Gas turbine engine components including carbon nanofiber composites

Also Published As

Publication number Publication date
US20140064964A1 (en) 2014-03-06
EP2703605A2 (en) 2014-03-05
GB201215299D0 (en) 2012-10-10

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