GB1521545A - Pitch-change apparatus for a ducted thrust fan - Google Patents

Pitch-change apparatus for a ducted thrust fan

Info

Publication number
GB1521545A
GB1521545A GB41224/75A GB4122475A GB1521545A GB 1521545 A GB1521545 A GB 1521545A GB 41224/75 A GB41224/75 A GB 41224/75A GB 4122475 A GB4122475 A GB 4122475A GB 1521545 A GB1521545 A GB 1521545A
Authority
GB
United Kingdom
Prior art keywords
hub
gear
ring
relative
rotation
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.)
Expired
Application number
GB41224/75A
Other languages
English (en)
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.)
RTX Corp
Original Assignee
United Technologies Corp
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 United Technologies Corp filed Critical United Technologies Corp
Publication of GB1521545A publication Critical patent/GB1521545A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K3/00—Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber
    • F02K3/04—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type
    • F02K3/06—Plants including a gas turbine driving a compressor or a ducted fan in which part of the working fluid by-passes the turbine and combustion chamber the plant including ducted fans, i.e. fans with high volume, low pressure outputs, for augmenting the jet thrust, e.g. of double-flow type with front fan
    • 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
    • F05D2260/40—Transmission of power
    • F05D2260/403—Transmission of power through the shape of the drive components
    • F05D2260/4031—Transmission of power through the shape of the drive components as in toothed gearing
    • F05D2260/40311—Transmission of power through the shape of the drive components as in toothed gearing of the epicyclical, planetary or differential type
    • 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
    • F05D2260/50—Kinematic linkage, i.e. transmission of position
    • F05D2260/56—Kinematic linkage, i.e. transmission of position using cams or eccentrics
    • 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
    • F05D2260/79—Bearing, support or actuation arrangements therefor
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
GB41224/75A 1974-10-09 1975-10-08 Pitch-change apparatus for a ducted thrust fan Expired GB1521545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/513,323 US4021142A (en) 1974-10-09 1974-10-09 Pitch-change apparatus for a ducted thrust fan

Publications (1)

Publication Number Publication Date
GB1521545A true GB1521545A (en) 1978-08-16

Family

ID=24042774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB41224/75A Expired GB1521545A (en) 1974-10-09 1975-10-08 Pitch-change apparatus for a ducted thrust fan

Country Status (4)

Country Link
US (1) US4021142A (enExample)
JP (1) JPS5164604A (enExample)
FR (1) FR2287601A1 (enExample)
GB (1) GB1521545A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106257058A (zh) * 2015-06-22 2016-12-28 通用电气公司 具有异步风扇叶片变斜度的涵道式推力产生系统

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4717610A (en) * 1987-02-02 1988-01-05 United Technologies Corporation Composite disk for supporting fan blades
US5205712A (en) * 1991-05-13 1993-04-27 Allied-Signal Inc. Variable pitch fan gas turbine engine
US5282719A (en) * 1991-05-13 1994-02-01 Alliedsignal Inc. Quad mode fan pitch actuation system for a gas turbine engine
US7901185B2 (en) * 2007-02-21 2011-03-08 United Technologies Corporation Variable rotor blade for gas turbine engine
US8336289B2 (en) 2007-08-30 2012-12-25 United Technologies Corporation Gas turbine engine systems and related methods involving multiple gas turbine cores
US8402742B2 (en) 2007-12-05 2013-03-26 United Technologies Corporation Gas turbine engine systems involving tip fans
US8590286B2 (en) * 2007-12-05 2013-11-26 United Technologies Corp. Gas turbine engine systems involving tip fans
JP2011521153A (ja) * 2008-05-13 2011-07-21 ローテイティング コンポジット テクノロジーズ， エルエルシー ファンブレードの保持および可変ピッチのためのシステム
WO2010097438A2 (fr) * 2009-02-27 2010-09-02 Snecma Aubes de soufflante a calage cyclique
FR2945512B1 (fr) * 2009-05-15 2012-08-24 Snecma Helice non carenee a pales a calage variable pour une turbomachine
DE102013012844B3 (de) * 2013-08-02 2014-11-20 Voith Patent Gmbh Turbine für ein Strömungskraftwerk
US10107130B2 (en) * 2016-03-24 2018-10-23 United Technologies Corporation Concentric shafts for remote independent variable vane actuation
US11421627B2 (en) * 2017-02-22 2022-08-23 General Electric Company Aircraft and direct drive engine under wing installation
US10934866B2 (en) 2017-06-20 2021-03-02 Rolls-Royce North American Technologies Inc. Variable pitch change control method
US10801339B2 (en) * 2017-07-11 2020-10-13 General Electric Company Aircraft gas turbine engine variable fan blade mechanism
GB201807774D0 (en) * 2018-05-14 2018-06-27 Rolls Royce Plc Hybrid aircraft propulsion system
US11428160B2 (en) 2020-12-31 2022-08-30 General Electric Company Gas turbine engine with interdigitated turbine and gear assembly
FR3125505B1 (fr) * 2021-07-22 2023-07-21 Safran Aircraft Engines Systeme de changement de pas des pales d’une helice d’une turbomachine
CN114435585A (zh) * 2022-01-28 2022-05-06 清华大学 可变桨距风扇及其变距方法
FR3150840B1 (fr) * 2023-07-03 2025-10-31 Safran Aircraft Engines Reducteur comportant un palier de guidage du solaire

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1582166A (en) * 1922-08-21 1926-04-27 Cederquist Nils Herman Variable-pitch propeller
FR798405A (fr) * 1934-12-06 1936-05-16 Aeroplani Caproni Perfectionnements aux hélices à pas variable
GB456407A (en) * 1935-03-23 1936-11-09 Istvan Dobos Improvements in or relating to screw propellers
GB753237A (en) * 1953-11-13 1956-07-18 English Electric Co Ltd Improvements in and relating to the control of feathering runner vanes of hydraulic turbines and pumps
DE1012869B (de) * 1956-05-11 1957-07-25 Arno Fischer Verstellantrieb fuer die Schaufeln von Stroemungsmaschinen
US3489338A (en) * 1966-04-12 1970-01-13 Dowty Rotol Ltd Gas turbine engines
GB1371371A (en) * 1971-04-27 1974-10-23 Defence Secretary Of States Fo Variable pitch fans or propellers particularly for gas turbine engines
US3801219A (en) * 1971-05-05 1974-04-02 Jerome A Gross Controllable pitch maripropeller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106257058A (zh) * 2015-06-22 2016-12-28 通用电气公司 具有异步风扇叶片变斜度的涵道式推力产生系统
CN106257058B (zh) * 2015-06-22 2019-03-19 通用电气公司 具有异步风扇叶片变斜度的涵道式推力产生系统

Also Published As

Publication number Publication date
JPS5164604A (enExample) 1976-06-04
US4021142A (en) 1977-05-03
FR2287601A1 (fr) 1976-05-07
FR2287601B1 (enExample) 1980-11-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee