JPS5799211A - Axial flow turbine - Google Patents

Axial flow turbine

Info

Publication number
JPS5799211A
JPS5799211A JP17537580A JP17537580A JPS5799211A JP S5799211 A JPS5799211 A JP S5799211A JP 17537580 A JP17537580 A JP 17537580A JP 17537580 A JP17537580 A JP 17537580A JP S5799211 A JPS5799211 A JP S5799211A
Authority
JP
Japan
Prior art keywords
fluid inlet
increase
secondary flow
increases
height
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.)
Granted
Application number
JP17537580A
Other languages
Japanese (ja)
Other versions
JPS5944482B2 (en
Inventor
Atsuhide Suzuki
Tatsuro Omori
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP17537580A priority Critical patent/JPS5944482B2/en
Priority to DE19813148995 priority patent/DE3148995A1/en
Publication of JPS5799211A publication Critical patent/JPS5799211A/en
Publication of JPS5944482B2 publication Critical patent/JPS5944482B2/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
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/145—Means for influencing boundary layers or secondary circulations

Landscapes

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

Abstract

PURPOSE: To prevent efficiency drop of a steam turbine etc. resulting from secondary flow by forming rotors in such a way as the fluid inlet angle at the end part of the rotors varies from the position at a specified height toward the end part.
CONSTITUTION: A dynamic vane 27 is twisted in such a way as the fluid inlet angle β gradually increases or gradually decreases followed by a gradual increase as the height increases from the root part 27a to the prescribed height H1 27b, and increases in response to an increase of the rotation periphery speed caused by an increase of the raduis between 27b and 27c which is H2 below the top part 27d, and further increase from 27c toward 27d. The values of H1 and H2 are decided based on the thickness of the region which is controlled by the secondary flow on wall section. The fluid inlet angles at the root section and the top section are so decided as they vary from the fluid inlet angles at H1 and H2 by I1 and I2, or variances in the fluid inlet angles based on the difference in nozzle fluid outlet angle caused by the secondary flow.
COPYRIGHT: (C)1982,JPO&Japio
JP17537580A 1980-12-12 1980-12-12 axial turbine Expired JPS5944482B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP17537580A JPS5944482B2 (en) 1980-12-12 1980-12-12 axial turbine
DE19813148995 DE3148995A1 (en) 1980-12-12 1981-12-10 Axial turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17537580A JPS5944482B2 (en) 1980-12-12 1980-12-12 axial turbine

Publications (2)

Publication Number Publication Date
JPS5799211A true JPS5799211A (en) 1982-06-19
JPS5944482B2 JPS5944482B2 (en) 1984-10-30

Family

ID=15994995

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17537580A Expired JPS5944482B2 (en) 1980-12-12 1980-12-12 axial turbine

Country Status (2)

Country Link
JP (1) JPS5944482B2 (en)
DE (1) DE3148995A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178902A (en) * 1983-12-12 1985-09-12 ゼネラル・エレクトリック・カンパニイ Power blade of gas turbine engine
JPS6166801A (en) * 1984-09-07 1986-04-05 ロ−ルス・ロイス・ピ−エルシ− Blade for turbine engine
US4682935A (en) * 1983-12-12 1987-07-28 General Electric Company Bowed turbine blade
JPH0454203A (en) * 1990-06-22 1992-02-21 Toshiba Corp Turbine rotor blade and turbine cascade
JP2007009761A (en) * 2005-06-29 2007-01-18 Toshiba Corp Axial flow turbine
KR100802121B1 (en) * 1999-06-03 2008-02-11 가부시키가이샤 에바라 세이사꾸쇼 Turbine device
JP2013231582A (en) * 2012-04-30 2013-11-14 General Electric Co <Ge> Fuel/air premixing system for turbine engine
JP2014015858A (en) * 2012-07-06 2014-01-30 Hitachi Ltd Axial flow turbine rotor blade

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188775U (en) * 1984-11-13 1986-06-10
CN1100195C (en) 1997-09-08 2003-01-29 西门子公司 Blade for turbo-machine for blade machinery
GB2407136B (en) 2003-10-15 2007-10-03 Alstom Turbine rotor blade for gas turbine engine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60178902A (en) * 1983-12-12 1985-09-12 ゼネラル・エレクトリック・カンパニイ Power blade of gas turbine engine
US4682935A (en) * 1983-12-12 1987-07-28 General Electric Company Bowed turbine blade
JPH0370083B2 (en) * 1983-12-12 1991-11-06 Gen Electric
JPS6166801A (en) * 1984-09-07 1986-04-05 ロ−ルス・ロイス・ピ−エルシ− Blade for turbine engine
US4714407A (en) * 1984-09-07 1987-12-22 Rolls-Royce Plc Aerofoil section members for turbine engines
JPH0454203A (en) * 1990-06-22 1992-02-21 Toshiba Corp Turbine rotor blade and turbine cascade
KR100802121B1 (en) * 1999-06-03 2008-02-11 가부시키가이샤 에바라 세이사꾸쇼 Turbine device
JP2007009761A (en) * 2005-06-29 2007-01-18 Toshiba Corp Axial flow turbine
JP2013231582A (en) * 2012-04-30 2013-11-14 General Electric Co <Ge> Fuel/air premixing system for turbine engine
JP2014015858A (en) * 2012-07-06 2014-01-30 Hitachi Ltd Axial flow turbine rotor blade

Also Published As

Publication number Publication date
DE3148995A1 (en) 1982-08-12
JPS5944482B2 (en) 1984-10-30

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