JPS5765802A - Fluid turbine - Google Patents

Fluid turbine

Info

Publication number
JPS5765802A
JPS5765802A JP13867480A JP13867480A JPS5765802A JP S5765802 A JPS5765802 A JP S5765802A JP 13867480 A JP13867480 A JP 13867480A JP 13867480 A JP13867480 A JP 13867480A JP S5765802 A JPS5765802 A JP S5765802A
Authority
JP
Japan
Prior art keywords
length
blades
nozzles
pitch
turbine 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.)
Pending
Application number
JP13867480A
Other languages
Japanese (ja)
Inventor
Kazumi Katayama
Shigeru Yamamoto
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP13867480A priority Critical patent/JPS5765802A/en
Priority to DE19813140035 priority patent/DE3140035A1/en
Priority to FR8118769A priority patent/FR2491546A1/en
Priority to CH642281A priority patent/CH656183A5/en
Priority to MX18950681A priority patent/MX154066A/en
Publication of JPS5765802A publication Critical patent/JPS5765802A/en
Pending 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
    • F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows

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 reduce fluctuating force exerted to turbine blades, by providing a blade lattice having a constant passage width downstream of fluid accelerating nozzles, and by-selecting the length of passages between the blades more than twice as long as the pitch of the nozzles.
CONSTITUTION: In case where the length S of passages between turbine blades 1 is coincided with two times as long as the pitch Pn of nozzles, negative pressure portions B are always generated in more than two in one passage between the blades 1, thereby to always cancel out fluctuating force so that tortional moment is also cancelled out. By extending this principle, the above-mentioned effect is more and more enhanced if the length S is increased larger and larger, having values equal to three, four and so on times of the nozzle pitch Pn. With this arrangement, fluctuating force exerted to the turbine blades 1 can be made extremely small.
COPYRIGHT: (C)1982,JPO&Japio
JP13867480A 1980-10-06 1980-10-06 Fluid turbine Pending JPS5765802A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13867480A JPS5765802A (en) 1980-10-06 1980-10-06 Fluid turbine
DE19813140035 DE3140035A1 (en) 1980-10-06 1981-10-05 Turbine
FR8118769A FR2491546A1 (en) 1980-10-06 1981-10-06 IMPROVEMENTS ON TURBINES, ESPECIALLY STEAM
CH642281A CH656183A5 (en) 1980-10-06 1981-10-06 TURBINE.
MX18950681A MX154066A (en) 1980-10-06 1981-10-06 IMPROVEMENTS TO AXIAL FLOW TURBINE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13867480A JPS5765802A (en) 1980-10-06 1980-10-06 Fluid turbine

Publications (1)

Publication Number Publication Date
JPS5765802A true JPS5765802A (en) 1982-04-21

Family

ID=15227454

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13867480A Pending JPS5765802A (en) 1980-10-06 1980-10-06 Fluid turbine

Country Status (5)

Country Link
JP (1) JPS5765802A (en)
CH (1) CH656183A5 (en)
DE (1) DE3140035A1 (en)
FR (1) FR2491546A1 (en)
MX (1) MX154066A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3785013B2 (en) 2000-01-12 2006-06-14 三菱重工業株式会社 Turbine blade

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR584884A (en) * 1923-08-29 1925-02-17 Improvements to turbine blades
FR1035365A (en) * 1951-04-13 1953-08-24 Licentia Gmbh Method for preventing the production of resonance phenomena on the blades of steam turbines, in particular during operation of turbines with variable number of revolutions of operation
FR1448244A (en) * 1965-06-23 1966-08-05 Method and device for operating a steam turbine installation

Also Published As

Publication number Publication date
FR2491546A1 (en) 1982-04-09
DE3140035A1 (en) 1982-04-22
CH656183A5 (en) 1986-06-13
MX154066A (en) 1987-04-21

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