IT7823975A0 - PROCEDURE FOR THE PREVENTION OF DESTRUCTIVE PHENOMENA RELATED TO CATITATION. - Google Patents

PROCEDURE FOR THE PREVENTION OF DESTRUCTIVE PHENOMENA RELATED TO CATITATION.

Info

Publication number
IT7823975A0
IT7823975A0 IT7823975A IT2397578A IT7823975A0 IT 7823975 A0 IT7823975 A0 IT 7823975A0 IT 7823975 A IT7823975 A IT 7823975A IT 2397578 A IT2397578 A IT 2397578A IT 7823975 A0 IT7823975 A0 IT 7823975A0
Authority
IT
Italy
Prior art keywords
catitation
prevention
procedure
phenomena related
destructive phenomena
Prior art date
Application number
IT7823975A
Other languages
Italian (it)
Other versions
IT1094887B (en
Original Assignee
Alsthom Atlantique
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 Alsthom Atlantique filed Critical Alsthom Atlantique
Publication of IT7823975A0 publication Critical patent/IT7823975A0/en
Application granted granted Critical
Publication of IT1094887B publication Critical patent/IT1094887B/en

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
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F15D1/04—Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
IT23975/78A 1977-06-08 1978-05-30 PROCEDURE FOR THE PREVENTION OF DESTRUCTIVE PHENOMENA RELATED TO CATITATION IT1094887B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR777717499A FR2393964A1 (en) 1977-06-08 1977-06-08 METHOD FOR PREVENTING DESTRUCTIVE PHENOMENA RELATED TO CAVITATION

Publications (2)

Publication Number Publication Date
IT7823975A0 true IT7823975A0 (en) 1978-05-30
IT1094887B IT1094887B (en) 1985-08-10

Family

ID=9191824

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23975/78A IT1094887B (en) 1977-06-08 1978-05-30 PROCEDURE FOR THE PREVENTION OF DESTRUCTIVE PHENOMENA RELATED TO CATITATION

Country Status (3)

Country Link
FR (1) FR2393964A1 (en)
GB (1) GB2000249B (en)
IT (1) IT1094887B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007218099A (en) * 2006-02-14 2007-08-30 Tokyo Electric Power Co Inc:The Hydraulic turbine runner and hydraulic turbine runner system
GB2497763A (en) * 2011-12-20 2013-06-26 Ocean Flow Energy Ltd Air injection system for reducing hydrodynamic loads on water turbine blades
DE102016207977A1 (en) * 2016-05-10 2017-05-11 Voith Patent Gmbh Impeller for a hydraulic machine
CN106194768B (en) * 2016-08-31 2018-08-10 徐州潜龙泵业有限公司 Cavitation-preventive canned motor pump
CN106702993B (en) * 2016-12-19 2019-01-18 水利部交通运输部国家能源局南京水利科学研究院 The anti-cavitation method of water-delivery valve top sealing
CN108612678B (en) * 2018-04-20 2020-01-10 浙江理工大学 Cavitation-resistant air supply device suitable for different cavitation areas of centrifugal pump
CN114370547B (en) * 2022-03-22 2022-05-31 潍柴动力股份有限公司 Exhaust pipe for improving efficiency of exhaust system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB291281A (en) * 1927-10-29 1928-05-31 William Lovis Improvements in or relating to ships' propellers
GB392895A (en) * 1930-08-27 1933-05-25 Francis Edward Colbert Improvements in screw propellers
GB400913A (en) * 1932-01-29 1933-11-02 Louis Jauch Improvements in hydraulic or aerial propellers or receivers
GB396716A (en) * 1932-02-08 1933-08-08 Edward Ernest Tully Improvements in or relating to ships' propellers
GB792243A (en) * 1953-08-27 1958-03-26 Commw Of Australia Control of boundary-layer flow
GB986797A (en) * 1960-04-09 1965-03-24 Hussein Haekal Improvements in and relating to machines comprising a bladed rotor such as water turbines and pumps
GB997943A (en) * 1961-05-19 1965-07-14 Hovercraft Dev Ltd Fluid curtains for protecting or shielding a body
GB1153137A (en) * 1965-08-31 1969-05-21 Hovercraft Dev Ltd Cycloidal Propeller
US3467043A (en) * 1966-11-18 1969-09-16 Bowles Eng Corp Pure fluid force generator
NO132423C (en) * 1973-12-04 1975-11-12 Norges Skipsforsknings Inst

Also Published As

Publication number Publication date
FR2393964B1 (en) 1980-01-04
GB2000249B (en) 1982-02-03
GB2000249A (en) 1979-01-04
FR2393964A1 (en) 1979-01-05
IT1094887B (en) 1985-08-10

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