JPS57163164A - Hydraulic machine - Google Patents

Hydraulic machine

Info

Publication number
JPS57163164A
JPS57163164A JP56046164A JP4616481A JPS57163164A JP S57163164 A JPS57163164 A JP S57163164A JP 56046164 A JP56046164 A JP 56046164A JP 4616481 A JP4616481 A JP 4616481A JP S57163164 A JPS57163164 A JP S57163164A
Authority
JP
Japan
Prior art keywords
chamber
runner
upper cover
natural frequency
pipe
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
JP56046164A
Other languages
Japanese (ja)
Inventor
Koji Kimura
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 JP56046164A priority Critical patent/JPS57163164A/en
Publication of JPS57163164A publication Critical patent/JPS57163164A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/002—Injecting air or other fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/04—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator for diminishing cavitation or vibration, e.g. balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/02—Machines or engines of reaction type; Parts or details peculiar thereto with radial flow at high-pressure side and axial flow at low-pressure side of rotors, e.g. Francis turbines
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Abstract

PURPOSE:To enable to change the natural frequency of a runner of a hydraulic machine, by forming a water and air mixing chamber in a back-pressure chamber, and providing a means for feeding and discharging compressed air to and from said mixing chamber in an upper cover of the machine. CONSTITUTION:In a back-pressure chamber 8 defined between a runner 4 and an upper cover 7, a natural frequency controlling chamber 9 is formed further in the upper cover. A pipe 10 is opened in the chamber 9 so that compressed air can be supplied to or discharged from the chamber 9 via the pipe 10. With such an arrangement, when the frequency of hydraulic oscillating force becomes equal to that of the nautral oscillation of the runner 4, a valve attached to the pipe 10 is opened for feeding compressed air to the natural frequency controlling chamber 9, changing the depth of water on the side of the upper cover 7 of the runner 4, and thereby changing the natural frequency of the runner 4.
JP56046164A 1981-03-31 1981-03-31 Hydraulic machine Pending JPS57163164A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56046164A JPS57163164A (en) 1981-03-31 1981-03-31 Hydraulic machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56046164A JPS57163164A (en) 1981-03-31 1981-03-31 Hydraulic machine

Publications (1)

Publication Number Publication Date
JPS57163164A true JPS57163164A (en) 1982-10-07

Family

ID=12739368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56046164A Pending JPS57163164A (en) 1981-03-31 1981-03-31 Hydraulic machine

Country Status (1)

Country Link
JP (1) JPS57163164A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568241A (en) * 1983-07-15 1986-02-04 Kabushiki Kaisha Toshiba Hydraulic machines
WO2000047890A1 (en) * 1999-02-13 2000-08-17 Voith Siemens Hydro Power Generation Gmbh&Co.Kg Method for optimising the operating point of a dynamical type compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568241A (en) * 1983-07-15 1986-02-04 Kabushiki Kaisha Toshiba Hydraulic machines
WO2000047890A1 (en) * 1999-02-13 2000-08-17 Voith Siemens Hydro Power Generation Gmbh&Co.Kg Method for optimising the operating point of a dynamical type compressor

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