FR2246743A1 - - Google Patents

Info

Publication number
FR2246743A1
FR2246743A1 FR7432725A FR7432725A FR2246743A1 FR 2246743 A1 FR2246743 A1 FR 2246743A1 FR 7432725 A FR7432725 A FR 7432725A FR 7432725 A FR7432725 A FR 7432725A FR 2246743 A1 FR2246743 A1 FR 2246743A1
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.)
Withdrawn
Application number
FR7432725A
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 FR2246743A1 publication Critical patent/FR2246743A1/fr
Withdrawn legal-status Critical Current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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Turbines (AREA)
FR7432725A 1973-10-01 1974-09-27 Withdrawn FR2246743A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US402067A US3873235A (en) 1973-10-01 1973-10-01 Variable pitch turbofan engine

Publications (1)

Publication Number Publication Date
FR2246743A1 true FR2246743A1 (fr) 1975-05-02

Family

ID=23590375

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432725A Withdrawn FR2246743A1 (fr) 1973-10-01 1974-09-27

Country Status (8)

Country Link
US (1) US3873235A (fr)
JP (1) JPS5924259B2 (fr)
BE (1) BE820543A (fr)
CA (1) CA1015276A (fr)
DE (1) DE2446527A1 (fr)
FR (1) FR2246743A1 (fr)
GB (3) GB1484685A (fr)
IT (1) IT1022364B (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912418A (en) * 1974-10-01 1975-10-14 United Technologies Corp Lubrication system for a rotor
FR2309744A1 (fr) * 1975-04-30 1976-11-26 Ratier Sa Forest Dispositif de commande de variation du pas des pales d'un ventilateur
US3994128A (en) * 1975-05-21 1976-11-30 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Dual output variable pitch turbofan actuation system
US4657484A (en) * 1984-09-04 1987-04-14 General Electric Company Blade pitch varying means
JPS62192868U (fr) * 1986-05-26 1987-12-08
US4753572A (en) * 1986-10-02 1988-06-28 United Technologies Corporation Propeller pitch change actuation system
US4750862A (en) * 1986-11-28 1988-06-14 United Technologies Corporation Modular propeller blade pitch actuation system
US4718823A (en) * 1987-02-24 1988-01-12 United Technologies Corporation Pitch changing mechanism for fan blades
US5211539A (en) * 1991-05-13 1993-05-18 Allied-Signal Inc. Apparatus for indicating the pitch of turbofan blades
US5186608A (en) * 1991-10-25 1993-02-16 United Technologies Corporation Hydraulic low pitch switch for propeller pitch change system
GB2465575A (en) * 2008-11-21 2010-05-26 Rolls Royce Plc Displacement measurement / rotor blade pitch measurement arrangement
CA2784674C (fr) * 2009-12-18 2018-03-20 Flexxaire Inc. Ventilateur a pas variable comportant un capteur de pas
GB201000054D0 (en) * 2010-01-05 2010-02-17 Rolls Royce Plc Propeller assembly pitch change apparatus
US8021112B2 (en) * 2010-06-29 2011-09-20 General Electric Company Methods and systems for monitoring operation of a wind turbine
GB201011349D0 (en) * 2010-07-06 2010-08-18 Rolls Royce Plc Axial displacement and rotational speed monitoring
KR101060682B1 (ko) 2011-05-31 2011-08-30 박정근 축류팬의 날개각 조절 검지장치
FR2980770B1 (fr) * 2011-10-03 2014-06-27 Snecma Turbomachine a helice(s) pour aeronef avec systeme pour changer le pas de l'helice.
FR3009015B1 (fr) * 2013-07-24 2015-08-07 Snecma Dispositif de commande du calage des pales, et helice
DE102013014033B4 (de) * 2013-08-26 2015-12-24 Hägele GmbH Hydraulische Stellvorrichtung
US9835041B2 (en) 2014-10-31 2017-12-05 Hamilton Sundstrand Corporation Vane position sensor installation within a turbine case
CA2944455C (fr) 2015-10-19 2019-06-25 General Electric Company Repositionnement du demarreur accessoire d'un moteur a reaction aeroderivatif vers l'arbre principal directement connecte a l'arbre hpc
PL414889A1 (pl) * 2015-11-23 2017-06-05 General Electric Company Okapotowanie sprężające dla wylotu silnika odrzutowego
FR3046409B1 (fr) * 2016-01-05 2018-02-09 Safran Aircraft Engines Systeme de commande de l'orientation des pales de soufflante d'une turbomachine a pion de blocage de mise en drapeau
FR3055354B1 (fr) * 2016-08-26 2019-08-23 Safran Aircraft Engines Turbomachine comprenant des moyens d'etancheite et procede de montage de la turbomachine correspondant
CN108032993B (zh) * 2017-12-15 2024-04-09 惠阳航空螺旋桨有限责任公司 一种小距锁止动装置
CN111547252B (zh) * 2020-04-21 2021-12-24 中国航发湖南动力机械研究所 尾桨桨距操纵轴装置及其制备方法
CN113048118B (zh) * 2021-03-24 2022-02-18 大连理工大学 一种用于迎角调节的液压支撑装置
FR3141718A1 (fr) * 2022-11-08 2024-05-10 Safran Aircraft Engines Turbomachine d’aeronef a detection de deplacement axial d’une soufflante

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2472693A (en) * 1949-06-07 Pitch indicator for variable
US2670805A (en) * 1947-03-20 1954-03-02 Harry J Nichols Controllable reversible pitch propeller
US2993543A (en) * 1957-07-30 1961-07-25 United Aircraft Corp Multiple-area hydraulic motor
US3439745A (en) * 1966-03-30 1969-04-22 United Aircraft Corp Combined propeller pitch lock and low pitch stop system
US3487880A (en) * 1966-04-12 1970-01-06 Dowty Rotol Ltd Variable pitch fans
GB1275064A (en) * 1968-11-14 1972-05-24 Lucas Industries Ltd Servo-mechanism
US3757640A (en) * 1971-12-01 1973-09-11 Avco Corp Simplified follower servomechanism

Also Published As

Publication number Publication date
US3873235A (en) 1975-03-25
DE2446527A1 (de) 1975-04-10
CA1015276A (en) 1977-08-09
IT1022364B (it) 1978-03-20
BE820543A (fr) 1975-01-16
JPS5077718A (fr) 1975-06-25
GB1484684A (en) 1977-09-01
GB1484685A (en) 1977-09-01
JPS5924259B2 (ja) 1984-06-08
GB1484683A (en) 1977-09-01

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Legal Events

Date Code Title Description
ST Notification of lapse