GB1079606A - Improvements in and relating to compressor or turbine rotor blades - Google Patents

Improvements in and relating to compressor or turbine rotor blades

Info

Publication number
GB1079606A
GB1079606A GB14519/66A GB1451966A GB1079606A GB 1079606 A GB1079606 A GB 1079606A GB 14519/66 A GB14519/66 A GB 14519/66A GB 1451966 A GB1451966 A GB 1451966A GB 1079606 A GB1079606 A GB 1079606A
Authority
GB
United Kingdom
Prior art keywords
blade
compressor
blades
adjacent
rotor blades
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
GB14519/66A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Switzerland
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Switzerland, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Switzerland
Publication of GB1079606A publication Critical patent/GB1079606A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/16—Blades
    • B64C11/18—Aerodynamic features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D21/00—Pump involving supersonic speed of pumped fluids
    • 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)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1,079,606. Turbine and compressor blades; axial-flow compressors. BROWN, BOVERI & CO. Ltd. April 1, 1966 [April 1, 1965], No. 14519/66. Headings F1C and F1T. Each blade in a row of rotor blades in an axialflow compressor or steam turbine wherein the fluid velocity at the blade tips is supersonic has a tip cross-sectional shape in which the pressure side D is straight or slightly convex, the suction side Sa is concave with a smaller radius of curvature than the pressure side, and the greatest section thickness d, is adjacent the leading edge E.. The trailing edge H has a thickness d 2 of approximately 2 to 4% of the chord length L. The blades are spaced so that a straight line N from the trailing edge of one blade and intersecting the greatest section thickness of the adjacent blade subtends an angle y of 90‹ with the profile chord Se of the adjacent blade. An erosion resistant coating may be applied to the leading edge E.
GB14519/66A 1965-04-01 1966-04-01 Improvements in and relating to compressor or turbine rotor blades Expired GB1079606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH455565A CH427851A (en) 1965-04-01 1965-04-01 Blade ring for transonic flow

Publications (1)

Publication Number Publication Date
GB1079606A true GB1079606A (en) 1967-08-16

Family

ID=4278255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14519/66A Expired GB1079606A (en) 1965-04-01 1966-04-01 Improvements in and relating to compressor or turbine rotor blades

Country Status (7)

Country Link
JP (1) JPS499521B1 (en)
BE (1) BE678842A (en)
CH (1) CH427851A (en)
DE (1) DE1426789C2 (en)
DK (1) DK117002B (en)
GB (1) GB1079606A (en)
NL (1) NL146904B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250062A2 (en) * 1986-06-17 1987-12-23 Imc Magnetics Corporation Propeller blade
USRE34109E (en) * 1986-06-17 1992-10-20 Imc Magnetics Corp. Propeller blade
GB2427659A (en) * 2005-06-29 2007-01-03 Rolls Royce Plc Aerofoil blade and rotor arrangement
US9046111B2 (en) 2010-02-24 2015-06-02 Rolls-Royce Plc Compressor aerofoil
EP2540967A3 (en) * 2011-06-29 2017-06-21 Mitsubishi Hitachi Power Systems, Ltd. Supersonic turbine moving blade and axial-flow turbine
CN112412873A (en) * 2019-08-21 2021-02-26 普拉特 - 惠特尼加拿大公司 Impeller with chordwise blade thickness variation
US11536146B2 (en) 2018-05-14 2022-12-27 Arianegroup Gmbh Guide vane arrangement for use in a turbine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3565548A (en) * 1969-01-24 1971-02-23 Gen Electric Transonic buckets for axial flow turbines
FR2728618B1 (en) * 1994-12-27 1997-03-14 Europ Propulsion SUPERSONIC DISTRIBUTOR OF TURBOMACHINE INPUT STAGE
JP6081398B2 (en) * 2014-03-12 2017-02-15 株式会社東芝 Turbine blade cascade, turbine stage and steam turbine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE446861A (en) * 1941-08-29
FR1374182A (en) * 1963-11-14 1964-10-02 Escher Wyss Sa Crown of blades for turbomachines ensuring the deflection of the circulating fluid, while accelerating it

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250062A2 (en) * 1986-06-17 1987-12-23 Imc Magnetics Corporation Propeller blade
EP0250062A3 (en) * 1986-06-17 1988-12-28 Imc Magnetics Corporation Propeller blade
USRE34109E (en) * 1986-06-17 1992-10-20 Imc Magnetics Corp. Propeller blade
GB2427659A (en) * 2005-06-29 2007-01-03 Rolls Royce Plc Aerofoil blade and rotor arrangement
GB2427659B (en) * 2005-06-29 2007-09-26 Rolls Royce Plc A turbofan gas turbine engine fan blade and a turbofan gas turbine engine fan rotor arrangement
US7946825B2 (en) 2005-06-29 2011-05-24 Rolls-Royce, Plc Turbofan gas turbine engine fan blade and a turbofan gas turbine fan rotor arrangement
US9046111B2 (en) 2010-02-24 2015-06-02 Rolls-Royce Plc Compressor aerofoil
EP2540967A3 (en) * 2011-06-29 2017-06-21 Mitsubishi Hitachi Power Systems, Ltd. Supersonic turbine moving blade and axial-flow turbine
EP3832068A1 (en) * 2011-06-29 2021-06-09 Mitsubishi Power, Ltd. Turbine moving blade and axial-flow turbine
US11536146B2 (en) 2018-05-14 2022-12-27 Arianegroup Gmbh Guide vane arrangement for use in a turbine
CN112412873A (en) * 2019-08-21 2021-02-26 普拉特 - 惠特尼加拿大公司 Impeller with chordwise blade thickness variation

Also Published As

Publication number Publication date
BE678842A (en) 1966-09-16
JPS499521B1 (en) 1974-03-05
CH427851A (en) 1967-01-15
NL146904B (en) 1975-08-15
NL6604339A (en) 1966-10-03
DE1426789C2 (en) 1973-12-06
DE1426789B1 (en) 1970-04-16
DK117002B (en) 1970-03-09

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