JPS55114882A - Servo motor with movable vane - Google Patents

Servo motor with movable vane

Info

Publication number
JPS55114882A
JPS55114882A JP2190279A JP2190279A JPS55114882A JP S55114882 A JPS55114882 A JP S55114882A JP 2190279 A JP2190279 A JP 2190279A JP 2190279 A JP2190279 A JP 2190279A JP S55114882 A JPS55114882 A JP S55114882A
Authority
JP
Japan
Prior art keywords
servo motor
movable vane
runner
projected
piston rod
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
JP2190279A
Other languages
Japanese (ja)
Inventor
Takeshi Kuwajima
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 JP2190279A priority Critical patent/JPS55114882A/en
Publication of JPS55114882A publication Critical patent/JPS55114882A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

PURPOSE: To reduce the size of a pressure device with improved stability, by making a piston rod projected through a cylinder cover of the servo motor and reducing the volumetric change of pressurized lubricant in a runner boss.
CONSTITUTION: Pressure oil, fed in the upper or lower postion of a piston 7 from pressure oil pipes 1, 3 through communicating holes 25, 5, vertically moves a cylinder 12 of the servo motor 18 to control a movable vane 14 through a link mechansim 13. A piston rod 10 is projected on the non-fixed side penetraing through a cylinder cover 15, which can greatly reduce the volumetric change of lubricating oil 27 pressurized in a runner boss 11 due to the action of the servo motor 18. Subsequently the size of the pressure device is reduced and its stability is also improved due to reduction of repeated load upon a runner cone 16, etc.
COPYRIGHT: (C)1980,JPO&Japio
JP2190279A 1979-02-28 1979-02-28 Servo motor with movable vane Pending JPS55114882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2190279A JPS55114882A (en) 1979-02-28 1979-02-28 Servo motor with movable vane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2190279A JPS55114882A (en) 1979-02-28 1979-02-28 Servo motor with movable vane

Publications (1)

Publication Number Publication Date
JPS55114882A true JPS55114882A (en) 1980-09-04

Family

ID=12068029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2190279A Pending JPS55114882A (en) 1979-02-28 1979-02-28 Servo motor with movable vane

Country Status (1)

Country Link
JP (1) JPS55114882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000519A1 (en) * 2004-06-29 2006-01-05 Va Tech Hydro Gmbh Turbine rotor disk with reduced leakage of servo oil

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006000519A1 (en) * 2004-06-29 2006-01-05 Va Tech Hydro Gmbh Turbine rotor disk with reduced leakage of servo oil

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