FR2438156A1 - Turbine blade ring - has holes drilled in blades to relieve fluid build up due to centrifugal force - Google Patents

Turbine blade ring - has holes drilled in blades to relieve fluid build up due to centrifugal force

Info

Publication number
FR2438156A1
FR2438156A1 FR7828460A FR7828460A FR2438156A1 FR 2438156 A1 FR2438156 A1 FR 2438156A1 FR 7828460 A FR7828460 A FR 7828460A FR 7828460 A FR7828460 A FR 7828460A FR 2438156 A1 FR2438156 A1 FR 2438156A1
Authority
FR
France
Prior art keywords
blades
centrifugal force
turbine blade
blade
blade ring
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
FR7828460A
Other languages
French (fr)
Other versions
FR2438156B1 (en
Inventor
Michel Vincent De Paul
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.)
Alsthom Atlantique SA
Original Assignee
Alsthom Atlantique SA
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 SA filed Critical Alsthom Atlantique SA
Priority to FR7828460A priority Critical patent/FR2438156A1/en
Publication of FR2438156A1 publication Critical patent/FR2438156A1/en
Application granted granted Critical
Publication of FR2438156B1 publication Critical patent/FR2438156B1/fr
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
    • F01D5/145—Means for influencing boundary layers or secondary circulations
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/682—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid extraction
    • 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
    • F04D29/68—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers
    • F04D29/681—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps
    • F04D29/684—Combating cavitation, whirls, noise, vibration or the like; Balancing by influencing boundary layers especially adapted for elastic fluid pumps by fluid injection
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

When the turbine is in operation, a thin film of fluid forms on the inner and outer faces of the blades. Due to centrifugal force, the fluid flows along the blade face, and forms globules at the root, and tip ends of the blade. A fluid relief hole is drilled at the tip of the blade (4), running horizontally from the leading to the trailing edge of the outlet (3). A second hole is drilled near the root of the blade, and also runs horizontally, but from the inlet to the outlet.
FR7828460A 1978-10-05 1978-10-05 Turbine blade ring - has holes drilled in blades to relieve fluid build up due to centrifugal force Granted FR2438156A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7828460A FR2438156A1 (en) 1978-10-05 1978-10-05 Turbine blade ring - has holes drilled in blades to relieve fluid build up due to centrifugal force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7828460A FR2438156A1 (en) 1978-10-05 1978-10-05 Turbine blade ring - has holes drilled in blades to relieve fluid build up due to centrifugal force

Publications (2)

Publication Number Publication Date
FR2438156A1 true FR2438156A1 (en) 1980-04-30
FR2438156B1 FR2438156B1 (en) 1981-01-30

Family

ID=9213366

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828460A Granted FR2438156A1 (en) 1978-10-05 1978-10-05 Turbine blade ring - has holes drilled in blades to relieve fluid build up due to centrifugal force

Country Status (1)

Country Link
FR (1) FR2438156A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589745A1 (en) * 1992-09-25 1994-03-30 TURBOMECA, Société dite: Inlet control system of a turbomachine
DE19524984A1 (en) * 1995-07-08 1997-01-09 Abb Management Ag Axial-flow turbine diffuser blade row - has inlet ports for suction ducts in blade foot and/or tip cover plate
EP1533529A2 (en) * 2003-11-24 2005-05-25 ALSTOM Technology Ltd Method to improve the flow conditions in an axial compressor and axial compressor using this method
WO2010015241A2 (en) * 2008-08-04 2010-02-11 Mtu Aero Engines Gmbh Axial compressor having a compressor blade row
US20160245091A1 (en) * 2013-10-31 2016-08-25 United Technologies Corporation Gas turbine engine airfoil with auxiliary flow channel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2160323A (en) * 1937-06-15 1939-05-30 Tracy B Barnett Propeller
CH205625A (en) * 1937-10-19 1939-06-30 Licentia Gmbh Flow channel for impellers or guide wheels of steam or. Gas turbines.
CH316898A (en) * 1952-09-11 1956-10-31 Maschf Augsburg Nuernberg Ag Blading for centrifugal machines with axial flow
DE1106027B (en) * 1955-07-18 1961-05-04 Power Jets Res & Dev Ltd Axial compressor whose rotor blades and / or guide blades are provided with a shroud
FR2054402A5 (en) * 1969-07-23 1971-04-16 Dettmering Wilhelm

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2160323A (en) * 1937-06-15 1939-05-30 Tracy B Barnett Propeller
CH205625A (en) * 1937-10-19 1939-06-30 Licentia Gmbh Flow channel for impellers or guide wheels of steam or. Gas turbines.
CH316898A (en) * 1952-09-11 1956-10-31 Maschf Augsburg Nuernberg Ag Blading for centrifugal machines with axial flow
DE1106027B (en) * 1955-07-18 1961-05-04 Power Jets Res & Dev Ltd Axial compressor whose rotor blades and / or guide blades are provided with a shroud
FR2054402A5 (en) * 1969-07-23 1971-04-16 Dettmering Wilhelm

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0589745A1 (en) * 1992-09-25 1994-03-30 TURBOMECA, Société dite: Inlet control system of a turbomachine
FR2696210A1 (en) * 1992-09-25 1994-04-01 Turbomeca System for adjusting the air supply conditions of a turbomachine, centrifugal compressor comprising an adjustment system and auxiliary power unit comprising such a compressor.
US5484261A (en) * 1992-09-25 1996-01-16 Turbomeca System for regulating air supply conditions of a turbo shaft machine
DE19524984A1 (en) * 1995-07-08 1997-01-09 Abb Management Ag Axial-flow turbine diffuser blade row - has inlet ports for suction ducts in blade foot and/or tip cover plate
EP1533529A2 (en) * 2003-11-24 2005-05-25 ALSTOM Technology Ltd Method to improve the flow conditions in an axial compressor and axial compressor using this method
DE10355108A1 (en) * 2003-11-24 2005-06-02 Alstom Technology Ltd Method for improving the flow conditions in an axial compressor and axial compressor for carrying out the method
EP1533529A3 (en) * 2003-11-24 2008-03-19 ALSTOM Technology Ltd Method to improve the flow conditions in an axial compressor and axial compressor using this method
WO2010015241A2 (en) * 2008-08-04 2010-02-11 Mtu Aero Engines Gmbh Axial compressor having a compressor blade row
WO2010015241A3 (en) * 2008-08-04 2010-04-01 Mtu Aero Engines Gmbh Axial compressor having a compressor blade row
US20160245091A1 (en) * 2013-10-31 2016-08-25 United Technologies Corporation Gas turbine engine airfoil with auxiliary flow channel
US10280757B2 (en) * 2013-10-31 2019-05-07 United Technologies Corporation Gas turbine engine airfoil with auxiliary flow channel

Also Published As

Publication number Publication date
FR2438156B1 (en) 1981-01-30

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Legal Events

Date Code Title Description
ST Notification of lapse