CA2766534C - Pale de rotor et procede de reduction de la charge de friction des extremites - Google Patents

Pale de rotor et procede de reduction de la charge de friction des extremites Download PDF

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Publication number
CA2766534C
CA2766534C CA2766534A CA2766534A CA2766534C CA 2766534 C CA2766534 C CA 2766534C CA 2766534 A CA2766534 A CA 2766534A CA 2766534 A CA2766534 A CA 2766534A CA 2766534 C CA2766534 C CA 2766534C
Authority
CA
Canada
Prior art keywords
tip
airfoil
cutter
leading edge
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 - Fee Related
Application number
CA2766534A
Other languages
English (en)
Other versions
CA2766534A1 (fr
Inventor
Nicholas Joseph Kray
David W. Crall
Daniel E. Mollmann
Donald Lee Gardner
Marcia Boyle Johnson
Howard P. Weaver
Max Robert Farson
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
Priority claimed from US12/494,610 external-priority patent/US8662834B2/en
Priority claimed from US12/494,595 external-priority patent/US8657570B2/en
Application filed by General Electric Co filed Critical General Electric Co
Publication of CA2766534A1 publication Critical patent/CA2766534A1/fr
Application granted granted Critical
Publication of CA2766534C publication Critical patent/CA2766534C/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01D5/20—Specially-shaped blade tips to seal space between 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
    • F01D11/122—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 with erodable or abradable material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/161—Sealings between pressure and suction sides especially adapted for elastic fluid pumps
    • F04D29/164—Sealings between pressure and suction sides especially adapted for elastic fluid pumps of an axial flow wheel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324—Blades
    • 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
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
    • 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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
CA2766534A 2009-06-30 2010-06-02 Pale de rotor et procede de reduction de la charge de friction des extremites Expired - Fee Related CA2766534C (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US12/494,595 2009-06-30
US12/494,610 US8662834B2 (en) 2009-06-30 2009-06-30 Method for reducing tip rub loading
US12/494,595 US8657570B2 (en) 2009-06-30 2009-06-30 Rotor blade with reduced rub loading
US12/494,610 2009-06-30
PCT/US2010/036996 WO2011002570A1 (fr) 2009-06-30 2010-06-02 Pale de rotor et procédé de réduction de la charge de friction des extrémités

Publications (2)

Publication Number Publication Date
CA2766534A1 CA2766534A1 (fr) 2011-01-06
CA2766534C true CA2766534C (fr) 2017-12-12

Family

ID=42543343

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2766534A Expired - Fee Related CA2766534C (fr) 2009-06-30 2010-06-02 Pale de rotor et procede de reduction de la charge de friction des extremites

Country Status (4)

Country Link
EP (1) EP2449216A1 (fr)
JP (1) JP5628307B2 (fr)
CA (1) CA2766534C (fr)
WO (1) WO2011002570A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10221698B2 (en) 2014-02-14 2019-03-05 United Technologies Corporation Polymer-coated blade with abrasive tip
DE102014212652A1 (de) 2014-06-30 2016-01-14 MTU Aero Engines AG Strömungsmaschine
US10060273B2 (en) 2015-04-15 2018-08-28 United Technologies Corporation System and method for manufacture of abrasive coating
US10794394B2 (en) 2015-04-15 2020-10-06 Raytheon Technologies Corporation Abrasive tip for composite fan blades
US11268183B2 (en) 2015-05-06 2022-03-08 Raytheon Technologies Corporation Method of forming an abrasive coating on a fan blade tip
GB201900961D0 (en) 2019-01-24 2019-03-13 Rolls Royce Plc Fan blade
IT202000003853A1 (it) * 2020-02-25 2021-08-25 Nobili S P A Apparecchiatura, in particolare un atomizzatore, per cospargere un fluido, o liquido, di trattamento

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096930A (en) * 1961-06-26 1963-07-09 Meyerhoff Leonard Propeller design
FR2615254A1 (fr) * 1987-05-13 1988-11-18 Snecma Aube mobile de soufflante comportant une depouille en extremite
US4884820A (en) * 1987-05-19 1989-12-05 Union Carbide Corporation Wear resistant, abrasive laser-engraved ceramic or metallic carbide surfaces for rotary labyrinth seal members
US5275531A (en) * 1993-04-30 1994-01-04 Teleflex, Incorporated Area ruled fan blade ends for turbofan jet engine
US5476363A (en) * 1993-10-15 1995-12-19 Charles E. Sohl Method and apparatus for reducing stress on the tips of turbine or compressor blades
GB9325135D0 (en) * 1993-12-08 1994-02-09 Rolls Royce Plc Manufacture of wear resistant components
US5456576A (en) * 1994-08-31 1995-10-10 United Technologies Corporation Dynamic control of tip clearance
IL120137A0 (en) * 1997-02-03 1997-06-10 Iscar Ltd Cutting insert
US6338609B1 (en) * 2000-02-18 2002-01-15 General Electric Company Convex compressor casing
CN1205357C (zh) * 2001-05-31 2005-06-08 三菱重工业株式会社 保护膜形成方法、保护膜形成用材料及研磨性保护膜形成用薄板
US6843928B2 (en) * 2001-10-12 2005-01-18 General Electric Company Method for removing metal cladding from airfoil substrate
GB0216952D0 (en) * 2002-07-20 2002-08-28 Rolls Royce Plc Gas turbine engine casing and rotor blade arrangement
EP1820938A1 (fr) * 2006-02-20 2007-08-22 ABB Turbo Systems AG Eléments de nettoyage sur les extrémités des aubes d' une turbine
JP4830812B2 (ja) * 2006-11-24 2011-12-07 株式会社Ｉｈｉ 圧縮機動翼
US8172518B2 (en) * 2006-12-29 2012-05-08 General Electric Company Methods and apparatus for fabricating a rotor assembly

Also Published As

Publication number Publication date
CA2766534A1 (fr) 2011-01-06
WO2011002570A1 (fr) 2011-01-06
EP2449216A1 (fr) 2012-05-09
JP5628307B2 (ja) 2014-11-19
JP2012532268A (ja) 2012-12-13

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Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20150327

MKLA Lapsed

Effective date: 20190603