FR2255488A1 - - Google Patents

Info

Publication number
FR2255488A1
FR2255488A1 FR7441949A FR7441949A FR2255488A1 FR 2255488 A1 FR2255488 A1 FR 2255488A1 FR 7441949 A FR7441949 A FR 7441949A FR 7441949 A FR7441949 A FR 7441949A FR 2255488 A1 FR2255488 A1 FR 2255488A1
Authority
FR
France
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
FR7441949A
Other versions
FR2255488B3 (fr
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of FR2255488A1 publication Critical patent/FR2255488A1/fr
Application granted granted Critical
Publication of FR2255488B3 publication Critical patent/FR2255488B3/fr
Expired 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
    • F01D7/00—Rotors with blades adjustable in operation; Control thereof
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/322—Blade mountings
    • F04D29/323—Blade mountings adjustable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/36—Application in turbines specially adapted for the fan of turbofan engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/74—Adjusting of angle of incidence or attack of rotating blades by turning around an axis perpendicular the rotor centre line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05D2260/76—Adjusting of angle of incidence or attack of rotating blades the adjusting mechanism using auxiliary power sources
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7441949A 1973-12-21 1974-12-19 Expired FR2255488B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US427377A US3870434A (en) 1973-12-21 1973-12-21 Gear arrangement for variable pitch fan

Publications (2)

Publication Number Publication Date
FR2255488A1 true FR2255488A1 (fr) 1975-07-18
FR2255488B3 FR2255488B3 (fr) 1977-09-16

Family

ID=23694608

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7441949A Expired FR2255488B3 (fr) 1973-12-21 1974-12-19

Country Status (5)

Country Link
US (1) US3870434A (fr)
JP (1) JPS5095613A (fr)
BE (1) BE823650A (fr)
DE (1) DE2459843A1 (fr)
FR (1) FR2255488B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560639A1 (fr) * 1984-03-02 1985-09-06 Gen Electric Moyens de commande d'air

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047840A (en) * 1975-05-29 1977-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Impact absorbing blade mounts for variable pitch blades
US5022824A (en) * 1988-10-07 1991-06-11 United Technologies Corporation Pinned airfoil propeller blade
US5022825A (en) * 1988-10-07 1991-06-11 United Technologies Corporation Pitch retention member
US4968217A (en) * 1989-09-06 1990-11-06 Rolls-Royce Plc Variable pitch arrangement for a gas turbine engine
US5205714A (en) * 1990-07-30 1993-04-27 General Electric Company Aircraft fan blade damping apparatus
US5129787A (en) * 1991-02-13 1992-07-14 United Technologies Corporation Lightweight propulsor blade with internal spars and rigid base members
ITBA20010002A1 (it) 2001-01-11 2002-07-11 Paolo Pietricola Fan a passo variabile.
WO2010097438A2 (fr) * 2009-02-27 2010-09-02 Snecma Aubes de soufflante a calage cyclique
CN103043199B (zh) * 2013-01-17 2015-05-13 苏州船用动力系统股份有限公司 轮缘式差动端面齿调距推进装置
US11391298B2 (en) 2015-10-07 2022-07-19 General Electric Company Engine having variable pitch outlet guide vanes
DE102016215807A1 (de) * 2016-08-23 2018-03-01 MTU Aero Engines AG Innenring für einen Leitschaufelkranz einer Strömungsmaschine
US11073160B2 (en) 2016-09-08 2021-07-27 The United States Of America As Represented By The Secretary Of The Army Adaptable articulating axial-flow compressor/turbine rotor blade
US10415405B2 (en) * 2017-04-21 2019-09-17 United Technologies Corporation Variable pitch fan blade system
DE102017109952A1 (de) * 2017-05-09 2018-11-15 Rolls-Royce Deutschland Ltd & Co Kg Rotorvorrichtung einer Strömungsmaschine
US10801339B2 (en) 2017-07-11 2020-10-13 General Electric Company Aircraft gas turbine engine variable fan blade mechanism
DE102018210601A1 (de) * 2018-06-28 2020-01-02 MTU Aero Engines AG Segmentring zur montage in einer strömungsmaschine
US20200024982A1 (en) * 2018-07-18 2020-01-23 United Technologies Corporation Boundary layer ingesting fan

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US32733A (en) * 1861-07-02 Gearing for driving machinery
US1802648A (en) * 1925-12-31 1931-04-28 American Propeller Company Propeller
US2460559A (en) * 1943-10-09 1949-02-01 Wildhaber Ernest Blade pitch adjustment
US2697365A (en) * 1950-06-16 1954-12-21 Earl C Williams Power transmission equipment
US2711105A (en) * 1951-06-02 1955-06-21 Williams Earl Charles Power transmission
US2844303A (en) * 1952-08-27 1958-07-22 Nordisk Ventilator Axial blowers or fans
US3018668A (en) * 1960-09-19 1962-01-30 Bruce S Berquist Varying speed ratio gearing
GB1265150A (fr) * 1968-06-22 1972-03-01
US3687569A (en) * 1971-03-19 1972-08-29 Gen Electric Rotor with variable angle blades

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560639A1 (fr) * 1984-03-02 1985-09-06 Gen Electric Moyens de commande d'air

Also Published As

Publication number Publication date
JPS5095613A (fr) 1975-07-30
DE2459843A1 (de) 1975-06-26
BE823650A (fr) 1975-04-16
US3870434A (en) 1975-03-11
FR2255488B3 (fr) 1977-09-16

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Legal Events

Date Code Title Description
ST Notification of lapse