GB2426792A9 - Fan with conical hub - Google Patents

Fan with conical hub

Info

Publication number
GB2426792A9
GB2426792A9 GB0515496A GB0515496A GB2426792A9 GB 2426792 A9 GB2426792 A9 GB 2426792A9 GB 0515496 A GB0515496 A GB 0515496A GB 0515496 A GB0515496 A GB 0515496A GB 2426792 A9 GB2426792 A9 GB 2426792A9
Authority
GB
United Kingdom
Prior art keywords
fan
conical hub
hub
conical
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
GB0515496A
Other versions
GB2426792C (en
GB2426792B (en
GB2426792A (en
GB0515496D0 (en
Inventor
David Richard Hopkins
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB0515496D0 publication Critical patent/GB0515496D0/en
Publication of GB2426792A publication Critical patent/GB2426792A/en
Publication of GB2426792A9 publication Critical patent/GB2426792A9/en
Application granted granted Critical
Publication of GB2426792B publication Critical patent/GB2426792B/en
Publication of GB2426792C publication Critical patent/GB2426792C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K3/00Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02Plants 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
    • F02K3/04Plants 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
    • F02K3/075Plants 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 controlling flow ratio between flows
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02KJET-PROPULSION PLANTS
    • F02K3/00Plants including a gas turbine driving a compressor or a ducted fan
    • F02K3/02Plants 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
    • F02K3/04Plants 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
    • F02K3/06Plants 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00Axial-flow pumps
    • F04D19/002Axial flow fans
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329Details of the hub
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/26Rotors specially for elastic fluids
    • F04D29/32Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38Blades
    • F04D29/384Blades characterised by form
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/54Fluid-guiding means, e.g. diffusers
    • F04D29/541Specially adapted for elastic fluid pumps
    • F04D29/545Ducts
    • F04D29/547Ducts having a special shape in order to influence fluid flow
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/60Efficient propulsion technologies, e.g. for aircraft
GB0515496A 2005-04-01 2005-07-28 A design to increase and smoothly improve the throughput of fluid (air or gas) through the inlet fan(or fans) of an aero-engine system Expired - Fee Related GB2426792C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0506685.7A GB0506685D0 (en) 2005-04-01 2005-04-01 A design to increase and smoothly improve the throughput of fluid (air or gas) through the inlet fan (or fans) of an aero-engine system

Publications (5)

Publication Number Publication Date
GB0515496D0 GB0515496D0 (en) 2005-09-07
GB2426792A GB2426792A (en) 2006-12-06
GB2426792A9 true GB2426792A9 (en) 2007-05-23
GB2426792B GB2426792B (en) 2007-06-27
GB2426792C GB2426792C (en) 2008-03-06

Family

ID=34586579

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0506685.7A Ceased GB0506685D0 (en) 2005-04-01 2005-04-01 A design to increase and smoothly improve the throughput of fluid (air or gas) through the inlet fan (or fans) of an aero-engine system
GB0515496A Expired - Fee Related GB2426792C (en) 2005-04-01 2005-07-28 A design to increase and smoothly improve the throughput of fluid (air or gas) through the inlet fan(or fans) of an aero-engine system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0506685.7A Ceased GB0506685D0 (en) 2005-04-01 2005-04-01 A design to increase and smoothly improve the throughput of fluid (air or gas) through the inlet fan (or fans) of an aero-engine system

Country Status (1)

Country Link
GB (2) GB0506685D0 (en)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8667688B2 (en) 2006-07-05 2014-03-11 United Technologies Corporation Method of assembly for gas turbine fan drive gear system
US7704178B2 (en) 2006-07-05 2010-04-27 United Technologies Corporation Oil baffle for gas turbine fan drive gear system
US9976437B2 (en) 2006-08-15 2018-05-22 United Technologies Corporation Epicyclic gear train
US8858388B2 (en) 2006-08-15 2014-10-14 United Technologies Corporation Gas turbine engine gear train
US10107231B2 (en) 2006-08-15 2018-10-23 United Technologies Corporation Gas turbine engine with geared architecture
US8753243B2 (en) 2006-08-15 2014-06-17 United Technologies Corporation Ring gear mounting arrangement with oil scavenge scheme
WO2008045072A1 (en) 2006-10-12 2008-04-17 United Technologies Corporation Dual function cascade integrated variable area fan nozzle and thrust reverser
US20080273961A1 (en) 2007-03-05 2008-11-06 Rosenkrans William E Flutter sensing and control system for a gas turbine engine
US11486311B2 (en) 2007-08-01 2022-11-01 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US11149650B2 (en) 2007-08-01 2021-10-19 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US20150377123A1 (en) 2007-08-01 2015-12-31 United Technologies Corporation Turbine section of high bypass turbofan
US11242805B2 (en) 2007-08-01 2022-02-08 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US11346289B2 (en) 2007-08-01 2022-05-31 Raytheon Technologies Corporation Turbine section of high bypass turbofan
US9701415B2 (en) 2007-08-23 2017-07-11 United Technologies Corporation Gas turbine engine with axial movable fan variable area nozzle
US9957918B2 (en) 2007-08-28 2018-05-01 United Technologies Corporation Gas turbine engine front architecture
US20140157754A1 (en) 2007-09-21 2014-06-12 United Technologies Corporation Gas turbine engine compressor arrangement
US20140174056A1 (en) 2008-06-02 2014-06-26 United Technologies Corporation Gas turbine engine with low stage count low pressure turbine
US9885313B2 (en) 2009-03-17 2018-02-06 United Technologes Corporation Gas turbine engine bifurcation located fan variable area nozzle
US9995174B2 (en) 2010-10-12 2018-06-12 United Technologies Corporation Planetary gear system arrangement with auxiliary oil system
US10605167B2 (en) 2011-04-15 2020-03-31 United Technologies Corporation Gas turbine engine front center body architecture
US9239012B2 (en) 2011-06-08 2016-01-19 United Technologies Corporation Flexible support structure for a geared architecture gas turbine engine
US9410608B2 (en) 2011-06-08 2016-08-09 United Technologies Corporation Flexible support structure for a geared architecture gas turbine engine
US9631558B2 (en) 2012-01-03 2017-04-25 United Technologies Corporation Geared architecture for high speed and small volume fan drive turbine
US9909505B2 (en) 2011-07-05 2018-03-06 United Technologies Corporation Efficient, low pressure ratio propulsor for gas turbine engines
US9506422B2 (en) 2011-07-05 2016-11-29 United Technologies Corporation Efficient, low pressure ratio propulsor for gas turbine engines
US9938898B2 (en) 2011-07-29 2018-04-10 United Technologies Corporation Geared turbofan bearing arrangement
US9416677B2 (en) 2012-01-10 2016-08-16 United Technologies Corporation Gas turbine engine forward bearing compartment architecture
US20130186058A1 (en) 2012-01-24 2013-07-25 William G. Sheridan Geared turbomachine fan and compressor rotation
US8869508B2 (en) 2012-01-31 2014-10-28 United Technologies Corporation Gas turbine engine variable area fan nozzle control
US20130192240A1 (en) 2012-01-31 2013-08-01 Peter M. Munsell Buffer system for a gas turbine engine
US20150345426A1 (en) 2012-01-31 2015-12-03 United Technologies Corporation Geared turbofan gas turbine engine architecture
US9394852B2 (en) 2012-01-31 2016-07-19 United Technologies Corporation Variable area fan nozzle with wall thickness distribution
US9835052B2 (en) 2012-01-31 2017-12-05 United Technologies Corporation Gas turbine engine with high speed low pressure turbine section and bearing support features
US20130192198A1 (en) 2012-01-31 2013-08-01 Lisa I. Brilliant Compressor flowpath
US10400629B2 (en) 2012-01-31 2019-09-03 United Technologies Corporation Gas turbine engine shaft bearing configuration
US8935913B2 (en) 2012-01-31 2015-01-20 United Technologies Corporation Geared turbofan gas turbine engine architecture
US8863491B2 (en) 2012-01-31 2014-10-21 United Technologies Corporation Gas turbine engine shaft bearing configuration
US20130192191A1 (en) 2012-01-31 2013-08-01 Frederick M. Schwarz Gas turbine engine with high speed low pressure turbine section and bearing support features
US20150192070A1 (en) 2012-01-31 2015-07-09 United Technologies Corporation Geared turbofan gas turbine engine architecture
US9169781B2 (en) 2012-01-31 2015-10-27 United Technologies Corporation Turbine engine gearbox
US20130192251A1 (en) 2012-01-31 2013-08-01 Peter M. Munsell Buffer system that communicates buffer supply air to one or more portions of a gas turbine engine
US10113434B2 (en) 2012-01-31 2018-10-30 United Technologies Corporation Turbine blade damper seal
US10415468B2 (en) 2012-01-31 2019-09-17 United Technologies Corporation Gas turbine engine buffer system
US10287914B2 (en) 2012-01-31 2019-05-14 United Technologies Corporation Gas turbine engine with high speed low pressure turbine section and bearing support features
US10724431B2 (en) 2012-01-31 2020-07-28 Raytheon Technologies Corporation Buffer system that communicates buffer supply air to one or more portions of a gas turbine engine
US10107191B2 (en) 2012-02-29 2018-10-23 United Technologies Corporation Geared gas turbine engine with reduced fan noise
US8790075B2 (en) 2012-03-30 2014-07-29 United Technologies Corporation Gas turbine engine geared architecture axial retention arrangement
US10125693B2 (en) 2012-04-02 2018-11-13 United Technologies Corporation Geared turbofan engine with power density range
US10138809B2 (en) 2012-04-02 2018-11-27 United Technologies Corporation Geared turbofan engine with a high ratio of thrust to turbine volume
US8572943B1 (en) 2012-05-31 2013-11-05 United Technologies Corporation Fundamental gear system architecture
US20150308351A1 (en) 2012-05-31 2015-10-29 United Technologies Corporation Fundamental gear system architecture
US9169731B2 (en) 2012-06-05 2015-10-27 United Technologies Corporation Airfoil cover system
WO2014051672A1 (en) 2012-09-28 2014-04-03 United Technologies Corporation Split-zone flow metering t-tube
WO2014058453A1 (en) 2012-10-08 2014-04-17 United Technologies Corporation Geared turbine engine with relatively lightweight propulsor module
WO2014058710A1 (en) 2012-10-09 2014-04-17 United Technologies Corporation Improved operability geared turbofan engine including compressor section variable guide vanes
US9920653B2 (en) 2012-12-20 2018-03-20 United Technologies Corporation Low pressure ratio fan engine having a dimensional relationship between inlet and fan size
US9932933B2 (en) 2012-12-20 2018-04-03 United Technologies Corporation Low pressure ratio fan engine having a dimensional relationship between inlet and fan size
CN103062113A (en) * 2013-01-23 2013-04-24 薛文义 Fan mechanism of turbo-fan engine
US10436120B2 (en) 2013-02-06 2019-10-08 United Technologies Corporation Exhaust nozzle for an elongated gear turbofan with high bypass ratio
US9863326B2 (en) 2013-03-12 2018-01-09 United Technologies Corporation Flexible coupling for geared turbine engine
US11719161B2 (en) 2013-03-14 2023-08-08 Raytheon Technologies Corporation Low noise turbine for geared gas turbine engine
US10605172B2 (en) 2013-03-14 2020-03-31 United Technologies Corporation Low noise turbine for geared gas turbine engine
US9885282B2 (en) 2013-03-15 2018-02-06 United Technologies Corporation Turbofan engine bearing and gearbox arrangement
US10724479B2 (en) 2013-03-15 2020-07-28 United Technologies Corporation Thrust efficient turbofan engine
US10287917B2 (en) 2013-05-09 2019-05-14 United Technologies Corporation Turbofan engine front section
US10371047B2 (en) 2013-10-16 2019-08-06 United Technologies Corporation Geared turbofan engine with targeted modular efficiency
US10502163B2 (en) 2013-11-01 2019-12-10 United Technologies Corporation Geared turbofan arrangement with core split power ratio
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WO2015126774A1 (en) 2014-02-19 2015-08-27 United Technologies Corporation Gas turbine engine airfoil
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WO2015126449A1 (en) 2014-02-19 2015-08-27 United Technologies Corporation Gas turbine engine airfoil
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US10280843B2 (en) 2014-03-07 2019-05-07 United Technologies Corporation Geared turbofan with integral front support and carrier
US9879608B2 (en) 2014-03-17 2018-01-30 United Technologies Corporation Oil loss protection for a fan drive gear system
US9976490B2 (en) 2014-07-01 2018-05-22 United Technologies Corporation Geared gas turbine engine with oil deaerator
US10060289B2 (en) 2014-07-29 2018-08-28 United Technologies Corporation Geared gas turbine engine with oil deaerator and air removal
US9915225B2 (en) 2015-02-06 2018-03-13 United Technologies Corporation Propulsion system arrangement for turbofan gas turbine engine
US9470093B2 (en) 2015-03-18 2016-10-18 United Technologies Corporation Turbofan arrangement with blade channel variations
US10371168B2 (en) 2015-04-07 2019-08-06 United Technologies Corporation Modal noise reduction for gas turbine engine
US9874145B2 (en) 2015-04-27 2018-01-23 United Technologies Corporation Lubrication system for gas turbine engines
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US10233773B2 (en) 2015-11-17 2019-03-19 United Technologies Corporation Monitoring system for non-ferrous metal particles
US10508562B2 (en) 2015-12-01 2019-12-17 United Technologies Corporation Geared turbofan with four star/planetary gear reduction
US10669948B2 (en) 2017-01-03 2020-06-02 Raytheon Technologies Corporation Geared turbofan with non-epicyclic gear reduction system
US11649833B2 (en) * 2017-02-23 2023-05-16 Minetek Investments Pty, Ltd. Fans
US10738646B2 (en) 2017-06-12 2020-08-11 Raytheon Technologies Corporation Geared turbine engine with gear driving low pressure compressor and fan at common speed, and failsafe overspeed protection and shear section
US10724445B2 (en) 2018-01-03 2020-07-28 Raytheon Technologies Corporation Method of assembly for fan drive gear system with rotating carrier
US11092020B2 (en) 2018-10-18 2021-08-17 Raytheon Technologies Corporation Rotor assembly for gas turbine engines
US11781506B2 (en) 2020-06-03 2023-10-10 Rtx Corporation Splitter and guide vane arrangement for gas turbine engines
US11814968B2 (en) 2021-07-19 2023-11-14 Rtx Corporation Gas turbine engine with idle thrust ratio
US11719245B2 (en) 2021-07-19 2023-08-08 Raytheon Technologies Corporation Compressor arrangement for a gas turbine engine
US11754000B2 (en) 2021-07-19 2023-09-12 Rtx Corporation High and low spool configuration for a gas turbine engine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070333B (en) * 1959-12-31
FR1315717A (en) * 1960-12-19 1963-01-25 Lyonnaise Ventilation Advanced axial fan
US3173604A (en) * 1962-02-15 1965-03-16 Gen Dynamics Corp Mixed flow turbo machine
US3508842A (en) * 1968-10-08 1970-04-28 Trane Co Apparatus for improving axial velocity profile of axial flow fans
DE2203353C3 (en) * 1972-01-25 1978-09-28 Sueddeutsche Kuehlerfabrik Julius Fr. Behr Gmbh & Co Kg, 7000 Stuttgart Fans, in particular for internal combustion engines
FR2248732A5 (en) * 1973-10-23 1975-05-16 Onera (Off Nat Aerospatiale)
US4063852A (en) * 1976-01-28 1977-12-20 Torin Corporation Axial flow impeller with improved blade shape
DE3428650C2 (en) * 1984-08-03 1986-08-14 Braun Ag, 6000 Frankfurt Hair dryer with axial fan
JP3118136B2 (en) * 1994-03-28 2000-12-18 株式会社先進材料利用ガスジェネレータ研究所 Axial compressor casing
US6145300A (en) * 1998-07-09 2000-11-14 Pratt & Whitney Canada Corp. Integrated fan / low pressure compressor rotor for gas turbine engine
US6195983B1 (en) * 1999-02-12 2001-03-06 General Electric Company Leaned and swept fan outlet guide vanes
US6338609B1 (en) * 2000-02-18 2002-01-15 General Electric Company Convex compressor casing
GB2363170A (en) * 2000-06-08 2001-12-12 Rolls Royce Plc Attaching a nose cone to a gas turbine engine rotor
GB2398353B (en) * 2003-02-14 2006-02-15 Rolls Royce Plc A gas turbine engine nose cone

Also Published As

Publication number Publication date
GB2426792C (en) 2008-03-06
GB2426792B (en) 2007-06-27
GB2426792A (en) 2006-12-06
GB0515496D0 (en) 2005-09-07
GB0506685D0 (en) 2005-05-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20200728