GB1270156A - Improvements in transonic blades for axial flow turbines - Google Patents

Improvements in transonic blades for axial flow turbines

Info

Publication number
GB1270156A
GB1270156A GB60427/69A GB6042769A GB1270156A GB 1270156 A GB1270156 A GB 1270156A GB 60427/69 A GB60427/69 A GB 60427/69A GB 6042769 A GB6042769 A GB 6042769A GB 1270156 A GB1270156 A GB 1270156A
Authority
GB
United Kingdom
Prior art keywords
thickness
blades
axial flow
blade
transonic
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
GB60427/69A
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
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB1270156A publication Critical patent/GB1270156A/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
    • F01D5/141—Shape, i.e. outer, aerodynamic form

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

1,270,156. Turbine blades. GENERAL ELECTRIC CO. Dec. 11, 1969 [Jan. 24, 1969], No.60427/69. Heading F1T. An axial flow elastic-fluid turbine has the tips of the rotor blades designed for transonic flow of the working fluid therepast, each blade having a rounded nose portion 3 which increases and then decreases in thickness, a mid-portion 4 of gradually increasing thickness and a tail portion 5 of decreasing thickness, the portions defining two points of substantially equal maximum thickness at d and t. The portions 3, 5 of adjacent blades overlap to define a convergent-divergent flow passage, the surfaces 10, 12 of which are gently concave. The pressure and suction sides 6, 7 respectively of each blade are substantially flat over the midportion 4. The nose portion 3 is generally elliptical and satisfies the condition 1/d # 1À8.
GB60427/69A 1969-01-24 1969-12-11 Improvements in transonic blades for axial flow turbines Expired GB1270156A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79383169A 1969-01-24 1969-01-24

Publications (1)

Publication Number Publication Date
GB1270156A true GB1270156A (en) 1972-04-12

Family

ID=25160924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB60427/69A Expired GB1270156A (en) 1969-01-24 1969-12-11 Improvements in transonic blades for axial flow turbines

Country Status (7)

Country Link
US (1) US3565548A (en)
JP (1) JPS5612681B1 (en)
CH (1) CH515412A (en)
DE (1) DE2002348C3 (en)
FR (1) FR2029035A1 (en)
GB (1) GB1270156A (en)
SE (1) SE358438B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9046111B2 (en) 2010-02-24 2015-06-02 Rolls-Royce Plc Compressor aerofoil

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* Cited by examiner, † Cited by third party
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US3697193A (en) * 1970-12-10 1972-10-10 Adrian Phillips Fluidfoil section
DE2524250A1 (en) * 1975-05-31 1976-12-02 Maschf Augsburg Nuernberg Ag LARGE CIRCLING SPEED FOR THERMAL, AXIAL-FLOW TURBO MACHINES
US4240952A (en) * 1979-01-15 1980-12-23 Clarence E. Hulbert, Jr. Method of making concrete from fly ash
US4333088A (en) * 1980-11-03 1982-06-01 Exxon Research & Engineering Co. Disposable peristaltic pump assembly for facsimile printer
US4616975A (en) * 1984-07-30 1986-10-14 General Electric Company Diaphragm for a steam turbine
US4643645A (en) * 1984-07-30 1987-02-17 General Electric Company Stage for a steam turbine
US4900230A (en) * 1989-04-27 1990-02-13 Westinghouse Electric Corp. Low pressure end blade for a low pressure steam turbine
US5197854A (en) * 1991-09-05 1993-03-30 Industrial Design Laboratories, Inc. Axial flow fan
US5588804A (en) * 1994-11-18 1996-12-31 Itt Automotive Electrical Systems, Inc. High-lift airfoil with bulbous leading edge
FR2728618B1 (en) * 1994-12-27 1997-03-14 Europ Propulsion SUPERSONIC DISTRIBUTOR OF TURBOMACHINE INPUT STAGE
DE19614420C2 (en) * 1996-04-12 2003-05-22 Aloys Wobben Rotor blade and wind turbine with a rotor blade
US6068454A (en) * 1998-04-06 2000-05-30 Ford Motor Company Fuel pump with helical impeller
US6358012B1 (en) * 2000-05-01 2002-03-19 United Technologies Corporation High efficiency turbomachinery blade
US7179058B2 (en) * 2004-03-21 2007-02-20 Bharat Heavy Electricals Limited Aerodynamically wide range applicable cylindrical blade profiles
US7175393B2 (en) * 2004-03-31 2007-02-13 Bharat Heavy Electricals Limited Transonic blade profiles
US8393872B2 (en) * 2009-10-23 2013-03-12 General Electric Company Turbine airfoil
JP6110544B2 (en) * 2011-06-29 2017-04-05 三菱日立パワーシステムズ株式会社 Supersonic turbine blade and axial turbine
JP6030853B2 (en) * 2011-06-29 2016-11-24 三菱日立パワーシステムズ株式会社 Turbine blade and axial turbine
US9340277B2 (en) * 2012-02-29 2016-05-17 General Electric Company Airfoils for use in rotary machines
DE102014200644B4 (en) 2014-01-16 2017-03-02 MTU Aero Engines AG Extruded profile and method for producing a blade of a Nachleitrads, blade of a Nachleitrads, Nachleitrad and turbomachinery with such a Nachleitrad
JP6081398B2 (en) * 2014-03-12 2017-02-15 株式会社東芝 Turbine blade cascade, turbine stage and steam turbine
US10358926B2 (en) 2017-08-11 2019-07-23 General Electric Company Low-noise airfoil for an open rotor
GB201719538D0 (en) 2017-11-24 2018-01-10 Rolls Royce Plc Gas turbine engine
GB201719539D0 (en) * 2017-11-24 2018-01-10 Rolls Royce Plc Gas Turbine Engine
US20240052746A1 (en) * 2022-08-09 2024-02-15 Rtx Corporation Fan blade or vane with improved bird impact capability

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE446861A (en) * 1941-08-29
US2935246A (en) * 1949-06-02 1960-05-03 Onera (Off Nat Aerospatiale) Shock wave compressors, especially for use in connection with continuous flow engines for aircraft
US3333817A (en) * 1965-04-01 1967-08-01 Bbc Brown Boveri & Cie Blading structure for axial flow turbo-machines
FR1473721A (en) * 1965-04-01 1967-03-17 Brown Movable fins for transonic flow
CH427851A (en) * 1965-04-01 1967-01-15 Bbc Brown Boveri & Cie Blade ring for transonic flow

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9046111B2 (en) 2010-02-24 2015-06-02 Rolls-Royce Plc Compressor aerofoil

Also Published As

Publication number Publication date
DE2002348B2 (en) 1979-06-13
US3565548A (en) 1971-02-23
JPS5612681B1 (en) 1981-03-24
DE2002348C3 (en) 1984-09-06
CH515412A (en) 1971-11-15
FR2029035A1 (en) 1970-10-16
SE358438B (en) 1973-07-30
DE2002348A1 (en) 1970-07-30

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