GB272837A - Improvements in and relating to reaction blading for turbines - Google Patents

Improvements in and relating to reaction blading for turbines

Info

Publication number
GB272837A
GB272837A GB23619/26A GB2361926A GB272837A GB 272837 A GB272837 A GB 272837A GB 23619/26 A GB23619/26 A GB 23619/26A GB 2361926 A GB2361926 A GB 2361926A GB 272837 A GB272837 A GB 272837A
Authority
GB
United Kingdom
Prior art keywords
turbines
inflexion
point
blades
curve
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
GB23619/26A
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
BBC Brown Boveri 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
Priority claimed from DEA48063D external-priority patent/DE566764C/en
Application filed by BBC Brown Boveri AG Switzerland, BBC Brown Boveri France SA filed Critical BBC Brown Boveri AG Switzerland
Publication of GB272837A publication Critical patent/GB272837A/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
    • 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
    • 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
    • F05D2240/301—Cross-sectional characteristics

Landscapes

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

Abstract

272,837. Akt.-Ges, Brown, Boveri, et Cie. June 21, 1926, [Convention date]. Addition to 252,702. Blades.-The reaction blading for turbines as claimed in the parent Specification is modified so that the envelope of the circles inscribed in the blade passage when erected on the developed centre line 4 of the blade passage consists of a curve 5 concave at the inlet and convex at the outlet with the tangent at the point of inflexion 8 inclined at an angle greater than 16‹. A line joining points 12, 13 on the curve which are distant from the inflexion point 8 a length equal to the radius of an inscribed circle 11 at the inflexion point is also inclined at an angle greater than 16‹. The blades are thinned at the outlet end beyond the parallel guiding portion. The blade pitch is at least 0.7 times the axial width.
GB23619/26A 1925-05-27 1926-09-24 Improvements in and relating to reaction blading for turbines Expired GB272837A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH115781T 1925-05-27
DEA48063D DE566764C (en) 1926-06-22 1926-06-22 Overpressure blading for steam and gas turbines

Publications (1)

Publication Number Publication Date
GB272837A true GB272837A (en) 1927-12-08

Family

ID=31947297

Family Applications (2)

Application Number Title Priority Date Filing Date
GB12460/26A Expired GB252702A (en) 1925-05-27 1926-05-11 Improvements in the reaction blading of steam and gas turbines
GB23619/26A Expired GB272837A (en) 1925-05-27 1926-09-24 Improvements in and relating to reaction blading for turbines

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB12460/26A Expired GB252702A (en) 1925-05-27 1926-05-11 Improvements in the reaction blading of steam and gas turbines

Country Status (6)

Country Link
US (2) US1749528A (en)
BE (1) BE334235A (en)
CH (2) CH115781A (en)
DE (1) DE522464C (en)
FR (2) FR616250A (en)
GB (2) GB252702A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140042A (en) * 1961-08-15 1964-07-07 Fujii Noriyoshi Wheels for centrifugal fans of the forward curved multiblade type
BE639412A (en) * 1962-11-30
US3314647A (en) * 1964-12-16 1967-04-18 Vladimir H Pavlecka High energy conversion turbines
US4002414A (en) * 1971-10-21 1977-01-11 Coleman Jr Richard R Compressor-expander rotor as employed with an integral turbo-compressor wave engine
JPS5331206A (en) * 1976-09-06 1978-03-24 Hitachi Ltd Fan with forward blades
JPS55123301A (en) * 1979-03-16 1980-09-22 Hitachi Ltd Turbine blade
JPS5614802A (en) * 1979-07-18 1981-02-13 Hitachi Ltd Profile of accelerating blade
DE3201436C1 (en) * 1982-01-19 1983-04-21 Kraftwerk Union AG, 4330 Mülheim Turbomachine blade
DE3202855C1 (en) * 1982-01-29 1983-03-31 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Device for reducing secondary flow losses in a bladed flow channel
JPS58152965A (en) * 1982-03-09 1983-09-10 Honda Motor Co Ltd Fluid torque converter
JPS6172801A (en) * 1984-09-18 1986-04-14 Fuji Electric Co Ltd Step of total flow turbine
GB2207191B (en) * 1987-07-06 1992-03-04 Gen Electric Gas turbine engine
US4900230A (en) * 1989-04-27 1990-02-13 Westinghouse Electric Corp. Low pressure end blade for a low pressure steam turbine
JP3188128B2 (en) * 1995-02-21 2001-07-16 株式会社豊田中央研究所 Stator of vehicle torque converter
WO1998019048A1 (en) * 1996-10-28 1998-05-07 Siemens Westinghouse Power Corporation Airfoil for a turbomachine
SE9904603D0 (en) * 1999-12-16 1999-12-16 Atlas Copco Tools Ab Turbine engine for elastic fluid operation
JP2002213202A (en) * 2001-01-12 2002-07-31 Mitsubishi Heavy Ind Ltd Gas turbine blade
JP4373629B2 (en) * 2001-08-31 2009-11-25 株式会社東芝 Axial flow turbine
JP4665916B2 (en) * 2007-02-28 2011-04-06 株式会社日立製作所 First stage rotor blade of gas turbine
JP6396093B2 (en) * 2014-06-26 2018-09-26 三菱重工業株式会社 Turbine rotor cascade, turbine stage and axial turbine
WO2016129628A1 (en) * 2015-02-10 2016-08-18 三菱日立パワーシステムズ株式会社 Turbine and gas turbine

Also Published As

Publication number Publication date
FR32194E (en) 1927-09-12
US1673554A (en) 1928-06-12
US1749528A (en) 1930-03-04
BE334235A (en) 1926-05-21
DE522464C (en) 1931-04-09
CH122943A (en) 1927-10-17
FR616250A (en) 1927-01-29
CH115781A (en) 1926-07-16
GB252702A (en) 1927-08-15

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