JPS5614802A - Profile of accelerating blade - Google Patents

Profile of accelerating blade

Info

Publication number
JPS5614802A
JPS5614802A JP9042679A JP9042679A JPS5614802A JP S5614802 A JPS5614802 A JP S5614802A JP 9042679 A JP9042679 A JP 9042679A JP 9042679 A JP9042679 A JP 9042679A JP S5614802 A JPS5614802 A JP S5614802A
Authority
JP
Japan
Prior art keywords
blade
fluid passage
width
line
fluid
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
JP9042679A
Other languages
Japanese (ja)
Other versions
JPS6259203B2 (en
Inventor
Takeshi Sato
Akira Uenishi
Norio Yasugadaira
Katsukuni Kuno
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP9042679A priority Critical patent/JPS5614802A/en
Priority to EP19800104153 priority patent/EP0023025B1/en
Priority to DE8080104153T priority patent/DE3072147D1/en
Publication of JPS5614802A publication Critical patent/JPS5614802A/en
Publication of JPS6259203B2 publication Critical patent/JPS6259203B2/ja
Granted 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
    • 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

Abstract

PURPOSE: To stabilize the boundary layer formed over the blade surface, by selecting the inlet angle and the outlet angle of blade respectively within a particular range so that acceleration of fluid is almost completed before the fluid flowing through the passage formed between adjacent two blades reaches the flow deflecting point.
CONSTITUTION: A flow deflecting point in the fluid passage formed between upper surface 10b and lower surface 10a of adjacent two blades 10 is located on a line H drawn from the intersecting point J of extension lines of inlet angle α1 and outlet angle α2 of blade 10 in parallel with the axis of cascade. Here, arrangement is such that the distance of line H representing the flow deflecting point from the trailing edge of blade is greater than 1/2 of the blade width and that width Sp of the fluid passage at the intersecting point P of said line H and curved center line A of the fluid passage is smaller that about 40% of the width t of fluid passage at the leading edge of blade 10. Further, the width Sp of the fluid passage is selected to be about 90W100% of the smallest width S of the fluid passage at the trailing edge of the blade.
COPYRIGHT: (C)1981,JPO&Japio
JP9042679A 1979-07-18 1979-07-18 Profile of accelerating blade Granted JPS5614802A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP9042679A JPS5614802A (en) 1979-07-18 1979-07-18 Profile of accelerating blade
EP19800104153 EP0023025B1 (en) 1979-07-18 1980-07-16 A turbine blade
DE8080104153T DE3072147D1 (en) 1979-07-18 1980-07-16 A turbine blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9042679A JPS5614802A (en) 1979-07-18 1979-07-18 Profile of accelerating blade

Publications (2)

Publication Number Publication Date
JPS5614802A true JPS5614802A (en) 1981-02-13
JPS6259203B2 JPS6259203B2 (en) 1987-12-10

Family

ID=13998272

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9042679A Granted JPS5614802A (en) 1979-07-18 1979-07-18 Profile of accelerating blade

Country Status (3)

Country Link
EP (1) EP0023025B1 (en)
JP (1) JPS5614802A (en)
DE (1) DE3072147D1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829603U (en) * 1981-08-21 1983-02-25 芝浦メカトロニクス株式会社 Vehicle body lateral vibration device for track maintenance machinery
JPS60250102A (en) * 1984-05-25 1985-12-10 芝浦メカトロニクス株式会社 Balast sweeper with compacter
JPS61122302A (en) * 1984-11-20 1986-06-10 芝浦メカトロニクス株式会社 Compactor apparatus equipped with position control function
US4795312A (en) * 1982-01-19 1989-01-03 Purcaru Bebe Titu Turbo-machine blade
US4900230A (en) * 1989-04-27 1990-02-13 Westinghouse Electric Corp. Low pressure end blade for a low pressure steam turbine
JP2011524490A (en) * 2008-07-04 2011-09-01 マン・ディーゼル・アンド・ターボ・エスイー Cascade for fluid engine and fluid engine having such cascade

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172210A (en) * 1987-03-18 1992-12-15 Mitsubishi Denki Kabushiki Kaisha Master slice integrated circuit having a memory region
JP2516962B2 (en) * 1987-03-18 1996-07-24 三菱電機株式会社 Master-slice LSI
US8142162B2 (en) 2005-07-15 2012-03-27 Vestas Wind Systems A/S Wind turbine blade
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
US11015993B2 (en) 2019-10-02 2021-05-25 Cnh Industrial America Llc System and method for wirelessly monitoring the operational status of tools of an agricultural implement

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49129002A (en) * 1973-04-20 1974-12-10

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE334235A (en) * 1925-05-27 1926-05-21
GB550393A (en) * 1941-05-21 1943-01-06 Oscar Anton Wiberg Blade rim for steam or gas turbines
DE1272305B (en) * 1959-01-27 1968-07-11 Siemens Ag Blading for steam turbines
US3475108A (en) * 1968-02-14 1969-10-28 Siemens Ag Blade structure for turbines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49129002A (en) * 1973-04-20 1974-12-10

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829603U (en) * 1981-08-21 1983-02-25 芝浦メカトロニクス株式会社 Vehicle body lateral vibration device for track maintenance machinery
JPS6346485Y2 (en) * 1981-08-21 1988-12-02
US4795312A (en) * 1982-01-19 1989-01-03 Purcaru Bebe Titu Turbo-machine blade
JPS60250102A (en) * 1984-05-25 1985-12-10 芝浦メカトロニクス株式会社 Balast sweeper with compacter
JPH052763B2 (en) * 1984-05-25 1993-01-13 Shibaura Eng Works Ltd
JPS61122302A (en) * 1984-11-20 1986-06-10 芝浦メカトロニクス株式会社 Compactor apparatus equipped with position control function
JPH052764B2 (en) * 1984-11-20 1993-01-13 Shibaura Eng Works Ltd
US4900230A (en) * 1989-04-27 1990-02-13 Westinghouse Electric Corp. Low pressure end blade for a low pressure steam turbine
JP2011524490A (en) * 2008-07-04 2011-09-01 マン・ディーゼル・アンド・ターボ・エスイー Cascade for fluid engine and fluid engine having such cascade

Also Published As

Publication number Publication date
EP0023025A1 (en) 1981-01-28
EP0023025B1 (en) 1989-03-15
JPS6259203B2 (en) 1987-12-10
DE3072147D1 (en) 1989-04-20

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