IT1130931B - Sommita' di paletta a scala per turbomacchine - Google Patents

Sommita' di paletta a scala per turbomacchine

Info

Publication number
IT1130931B
IT1130931B IT20439/80A IT2043980A IT1130931B IT 1130931 B IT1130931 B IT 1130931B IT 20439/80 A IT20439/80 A IT 20439/80A IT 2043980 A IT2043980 A IT 2043980A IT 1130931 B IT1130931 B IT 1130931B
Authority
IT
Italy
Prior art keywords
summity
turbomachines
shovel
scale
scale shovel
Prior art date
Application number
IT20439/80A
Other languages
English (en)
Other versions
IT8020439A0 (it
Inventor
Vicente Cleto Gallardo Jr
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT8020439A0 publication Critical patent/IT8020439A0/it
Application granted granted Critical
Publication of IT1130931B publication Critical patent/IT1130931B/it

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
    • 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
    • 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
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/307—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the tip of a rotor blade
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/11—Two-dimensional triangular
    • 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
    • F05D2250/00—Geometry
    • F05D2250/10—Two-dimensional
    • F05D2250/18—Two-dimensional patterned
    • F05D2250/183—Two-dimensional patterned zigzag
    • 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
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/294—Three-dimensional machined; miscellaneous grooved
    • 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)
IT20439/80A 1979-06-18 1980-03-07 Sommita' di paletta a scala per turbomacchine IT1130931B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/049,780 US4274806A (en) 1979-06-18 1979-06-18 Staircase blade tip

Publications (2)

Publication Number Publication Date
IT8020439A0 IT8020439A0 (it) 1980-03-07
IT1130931B true IT1130931B (it) 1986-06-18

Family

ID=21961696

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20439/80A IT1130931B (it) 1979-06-18 1980-03-07 Sommita' di paletta a scala per turbomacchine

Country Status (6)

Country Link
US (1) US4274806A (it)
JP (1) JPS562402A (it)
DE (1) DE3009863A1 (it)
FR (1) FR2459363A1 (it)
GB (1) GB2052644B (it)
IT (1) IT1130931B (it)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3401742C2 (de) * 1984-01-19 1986-08-14 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Rotor für einen Axialverdichter
US4589823A (en) * 1984-04-27 1986-05-20 General Electric Company Rotor blade tip
FR2615254A1 (fr) * 1987-05-13 1988-11-18 Snecma Aube mobile de soufflante comportant une depouille en extremite
US4878810A (en) * 1988-05-20 1989-11-07 Westinghouse Electric Corp. Turbine blades having alternating resonant frequencies
GB8829792D0 (en) * 1988-12-21 1989-07-05 Marconi Co Ltd Noise reduction method
US5277380A (en) * 1992-06-22 1994-01-11 United Technologies Corporation Toroidal fuselage structure for unmanned aerial vehicles having ducted, coaxial, counter-rotating rotors
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
DE10047307A1 (de) * 2000-09-25 2002-08-01 Alstom Switzerland Ltd Dichtungsanordnung
GB0216952D0 (en) * 2002-07-20 2002-08-28 Rolls Royce Plc Gas turbine engine casing and rotor blade arrangement
DE10301755A1 (de) * 2003-01-18 2004-07-29 Rolls-Royce Deutschland Ltd & Co Kg Fanschaufel für ein Gasturbienentriebwerk
US6976826B2 (en) * 2003-05-29 2005-12-20 Pratt & Whitney Canada Corp. Turbine blade dimple
GB0513187D0 (en) * 2005-06-29 2005-08-03 Rolls Royce Plc A blade and a rotor arrangement
FR2891594A1 (fr) * 2005-09-30 2007-04-06 Snecma Sa Aube de compresseur a sommet chanfreine
FR2907157A1 (fr) * 2006-10-13 2008-04-18 Snecma Sa Aube mobile de turbomachine
US8172518B2 (en) * 2006-12-29 2012-05-08 General Electric Company Methods and apparatus for fabricating a rotor assembly
EP1942250A1 (de) * 2007-01-05 2008-07-09 Siemens Aktiengesellschaft Bauteil mit schräg verlaufenden Vertiefungen in der Oberfläche und Verfahren zum Betreiben einer Turbine
JP5125518B2 (ja) * 2007-07-11 2013-01-23 ダイキン工業株式会社 プロペラファン
US8167572B2 (en) 2008-07-14 2012-05-01 Pratt & Whitney Canada Corp. Dynamically tuned turbine blade growth pocket
US8662834B2 (en) * 2009-06-30 2014-03-04 General Electric Company Method for reducing tip rub loading
US8657570B2 (en) * 2009-06-30 2014-02-25 General Electric Company Rotor blade with reduced rub loading
EP2309098A1 (en) * 2009-09-30 2011-04-13 Siemens Aktiengesellschaft Airfoil and corresponding guide vane, blade, gas turbine and turbomachine
FR2962762B1 (fr) * 2010-07-19 2014-04-11 Snecma Aube de compresseur dans une turbomachine
GB2483059A (en) * 2010-08-23 2012-02-29 Rolls Royce Plc An aerofoil blade with a set-back portion
US9091177B2 (en) 2012-03-14 2015-07-28 United Technologies Corporation Shark-bite tip shelf cooling configuration
DE112013001507T5 (de) * 2012-04-23 2015-03-19 Borgwarner Inc. Turboladerschaufel mit Umrisskantenstufe und Turbolader, der sie enthält
GB201222975D0 (en) * 2012-12-19 2013-01-30 Composite Technology & Applic Ltd An aerofoil structure
CN104632701A (zh) * 2014-12-24 2015-05-20 西北工业大学 大涵道比涡扇发动机风扇长短叶片结构
JP6761816B2 (ja) * 2015-05-15 2020-09-30 ヌオーヴォ・ピニォーネ・テクノロジー・ソチエタ・レスポンサビリタ・リミタータＮｕｏｖｏ Ｐｉｇｎｏｎｅ Ｔｅｃｎｏｌｏｇｉｅ Ｓ．Ｒ．Ｌ． 遠心圧縮機インペラおよび当該インペラを備える圧縮機
DE102019105355B4 (de) * 2019-03-04 2024-04-25 Ebm-Papst Mulfingen Gmbh & Co. Kg Lüfterrad eines Axialventilators

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1317707A (en) * 1919-10-07 Inghouse electric
US1014730A (en) * 1912-01-16 W Way John Vane for propeller-wheels.
US899319A (en) * 1906-10-08 1908-09-22 Charles Algernon Parsons Turbine.
US1206058A (en) * 1915-12-06 1916-11-28 Albert Wakefield Propeller.
CH134451A (de) * 1928-01-07 1929-07-31 Oerlikon Maschf Vorrichtung zur Verminderung von Spaltverlusten zwischen Turbinenleit- und Laufrädern.
US1828409A (en) * 1929-01-11 1931-10-20 Westinghouse Electric & Mfg Co Reaction blading
US1862827A (en) * 1930-01-22 1932-06-14 Parsons Steam turbine
US2738950A (en) * 1945-12-13 1956-03-20 Lockheed Aircraft Corp Turbine machine having high velocity blading
FR1068395A (fr) * 1951-12-21 1954-06-24 Power Jets Res & Dev Ltd Perfectionnements apportés aux aubes de turbines
GB736835A (en) * 1952-09-11 1955-09-14 Maschf Augsburg Nuernberg Ag Improvements in or relating to blading for axial flow turbo-engines
GB861728A (en) * 1958-09-29 1961-02-22 Parsons & Marine Eng Turbine Improvements in and relating to elastic fluid turbines
US3199836A (en) * 1964-05-04 1965-08-10 Gen Electric Axial flow turbo-machine blade with abrasive tip
US3403893A (en) * 1967-12-05 1968-10-01 Gen Electric Axial flow compressor blades
US3575523A (en) * 1968-12-05 1971-04-20 Us Navy Labyrinth seal for axial flow fluid machines
GB1423833A (en) * 1972-04-20 1976-02-04 Rolls Royce Rotor blades for fluid flow machines
DE2231426C3 (de) * 1972-06-27 1974-11-28 Motoren- Und Turbinen-Union Muenchen Gmbh, 8000 Muenchen Deckbandlose, innen gekühlte Axialturbinenlaufschaufel
US3854842A (en) * 1973-04-30 1974-12-17 Gen Electric Rotor blade having improved tip cap
US3966354A (en) * 1974-12-19 1976-06-29 General Electric Company Thermal actuated valve for clearance control

Also Published As

Publication number Publication date
DE3009863C2 (it) 1988-06-16
US4274806A (en) 1981-06-23
IT8020439A0 (it) 1980-03-07
GB2052644A (en) 1981-01-28
GB2052644B (en) 1983-04-27
DE3009863A1 (de) 1981-01-22
FR2459363B1 (it) 1984-07-13
JPS562402A (en) 1981-01-12
FR2459363A1 (fr) 1981-01-09

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