SE8704293L - DIFFERENTIAL EFFECT SYSTEM FOR A MULTI-WHEEL TURBINE ENGINE - Google Patents

DIFFERENTIAL EFFECT SYSTEM FOR A MULTI-WHEEL TURBINE ENGINE

Info

Publication number
SE8704293L
SE8704293L SE8704293A SE8704293A SE8704293L SE 8704293 L SE8704293 L SE 8704293L SE 8704293 A SE8704293 A SE 8704293A SE 8704293 A SE8704293 A SE 8704293A SE 8704293 L SE8704293 L SE 8704293L
Authority
SE
Sweden
Prior art keywords
alternator
spool
output
frequency
engine
Prior art date
Application number
SE8704293A
Other languages
Swedish (sv)
Other versions
SE8704293D0 (en
Inventor
A P Adamson
R P Johnston
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of SE8704293D0 publication Critical patent/SE8704293D0/en
Publication of SE8704293L publication Critical patent/SE8704293L/en

Links

Classifications

    • 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
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/04—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
    • F02C3/107—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission
    • F02C3/113—Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor with two or more rotors connected by power transmission with variable power transmission between rotors
    • 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
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • 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
    • F02C7/32—Arrangement, mounting, or driving, of auxiliaries
    • 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
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)
  • Control Of Turbines (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Retarders (AREA)

Abstract

In order to produce a power output at a substantially constant speed, a multi-spool turbine engine is provided, with means for generating power related to a rotational speed difference between the spools. In one version (Fig. 3) spools 18,20 of a multi-spool turbofan engine are connected to two inputs of a differential gear 26. The differential gear's output is connected to drive an alternator 50. In another version (Fig. 7), an alternator's coils (64) are carried on one spool (18) and magnets (62) are carried on another spool (20). An electrical output created by a rotational speed difference between the coils and magnets is taken through a slip ring (68) or by a rotating transformer (Fig. 8). In both versions the alternator rotates at at substantially constant speed to yield a relatively constant frequency output, requiring no transmission/clutch devices, or frequency compensating circuits. The alternator can be replaced with a d.c. generator which can be small because of the generator's constant operating speed. A control system (Fig. 9) may be provided which compares a signal representative of alternator frequency with desired valves stored in a memory 92 a signal from comparator 90 being passed to controller 96 to vary the position of stator vanes 98 in the engine. <IMAGE>
SE8704293A 1986-11-03 1987-11-03 DIFFERENTIAL EFFECT SYSTEM FOR A MULTI-WHEEL TURBINE ENGINE SE8704293L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92614186A 1986-11-03 1986-11-03

Publications (2)

Publication Number Publication Date
SE8704293D0 SE8704293D0 (en) 1987-11-03
SE8704293L true SE8704293L (en) 1988-05-04

Family

ID=25452810

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8704293A SE8704293L (en) 1986-11-03 1987-11-03 DIFFERENTIAL EFFECT SYSTEM FOR A MULTI-WHEEL TURBINE ENGINE

Country Status (6)

Country Link
JP (1) JPS63159627A (en)
DE (1) DE3736984A1 (en)
FR (1) FR2606077A1 (en)
GB (1) GB2197392A (en)
IT (1) IT1223046B (en)
SE (1) SE8704293L (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916894A (en) * 1989-01-03 1990-04-17 General Electric Company High bypass turbofan engine having a partially geared fan drive turbine
CA2013933A1 (en) * 1989-06-05 1990-12-05 General Electric Company Gas turbine powerplant
GB9910393D0 (en) * 1999-05-05 1999-07-07 Lucas Ind Plc Electrical generator,an aero-engine including such a generator and an aircraft including such a generator
FR2863312B1 (en) 2003-12-09 2008-07-04 Snecma Moteurs DOUBLE-BODY TURBOREACTOR WITH MEANS FOR DRIVING ACCESSORY MACHINES
FR2880920B1 (en) 2005-01-20 2007-07-06 Snecma Moteurs Sa DOUBLE-BODY TURBOMOTEUR WITH DRIVING MEANS FOR THE ACCESSORIES HOUSING
FR2882096B1 (en) 2005-02-11 2012-04-20 Snecma Moteurs DUAL-BODY TURBOMOTEUR WITH MOTION-TENSIONING MEANS ON LOW-PRESSURE, HIGH-PRESSURE ROTORS, TURBOMOTING MOTION-TENSIONING MODULE, AND TURBOMOTING MOUNTING METHOD
FR2892455B1 (en) * 2005-10-21 2008-01-04 Hispano Suiza Sa DEVICE FOR DRIVING AUXILIARY MACHINES FROM A DOUBLE-BODY TURBOMOTEUR
US7788898B2 (en) * 2006-12-06 2010-09-07 General Electric Company Variable coupling of turbofan engine spools via open differential gear set or simple planetary gear set for improved power extraction and engine operability, with torque coupling for added flexibility
FR2915523A1 (en) 2007-04-27 2008-10-31 Snecma Sa DEVICE FOR GENERATING ELECTRIC ENERGY IN A DOUBLE-BODY GAS TURBINE ENGINE
US7882691B2 (en) * 2007-07-05 2011-02-08 Hamilton Sundstrand Corporation High to low pressure spool summing gearbox for accessory power extraction and electric start
CA2762184A1 (en) 2009-05-12 2010-11-18 Icr Turbine Engine Corporation Gas turbine energy storage and conversion system
WO2011109514A1 (en) 2010-03-02 2011-09-09 Icr Turbine Engine Corporatin Dispatchable power from a renewable energy facility
US8984895B2 (en) 2010-07-09 2015-03-24 Icr Turbine Engine Corporation Metallic ceramic spool for a gas turbine engine
CA2813680A1 (en) 2010-09-03 2012-03-08 Icr Turbine Engine Corporation Gas turbine engine configurations
US9051873B2 (en) 2011-05-20 2015-06-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine shaft attachment
US10094288B2 (en) 2012-07-24 2018-10-09 Icr Turbine Engine Corporation Ceramic-to-metal turbine volute attachment for a gas turbine engine
FR3015144B1 (en) * 2013-12-16 2016-01-01 Hispano Suiza Sa METHOD FOR COOLING AN ELECTRIC GENERATOR AND DEVICE FOR CARRYING OUT SAID METHOD
US11473441B2 (en) * 2016-09-28 2022-10-18 General Electric Company Embedded electric machine
US20180283281A1 (en) * 2017-03-31 2018-10-04 Hamilton Sundstrand Corporation Accessory gearboxes
US10920671B2 (en) 2018-09-25 2021-02-16 Raytheon Technologies Corporation Thrust balance control with differential power extraction
EP3734046A1 (en) * 2019-05-02 2020-11-04 United Technologies Corporation High and low spool differential gear assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH276513A (en) * 1947-11-25 1951-07-15 Armstrong Siddeley Motors Ltd Gas turbine installation for the propulsion of an aircraft.
GB759606A (en) * 1953-07-22 1956-10-24 Bristol Aeroplane Co Ltd Improvements in or relating to gas turbine propulsion power plants
GB792058A (en) * 1955-06-22 1958-03-19 Bristol Aero Engines Ltd Improvements in or relating to gas turbine engine installations driving propellers
US2960825A (en) * 1955-10-19 1960-11-22 Thompson Ramo Wooldridge Inc Reexpansion gas turbine engine with differential compressor drive
GB973388A (en) * 1963-05-24 1964-10-28 George Garnham Turner Accessory power drive mechanism for a gas turbine engine
GB957573A (en) * 1962-05-23 1964-05-06 Hobson Ltd H M Improvements in pneumatic constant speed drives
CH474668A (en) * 1968-07-04 1969-06-30 Ferrari Riccardo Gas turbine for self-propelled vehicles
US3680309A (en) * 1969-09-25 1972-08-01 Garrett Corp Two-spool auxiliary power unit and control means
SE417628B (en) * 1973-05-22 1981-03-30 United Turbine Ab & Co FOR A WHEEL VEHICLE DEDICATED GAS TRUBIN
SE401711B (en) * 1976-09-24 1978-05-22 Kronogard Sven Olof GASTURBINE TRANSMISSION FACILITY
FR2520806B1 (en) * 1982-02-01 1986-07-11 Aerospatiale TURBOMOTOR HAVING AT LEAST TWO MOBILES AND A POWER TAKE-OFF
DE3218927A1 (en) * 1982-05-19 1983-11-24 Klöckner-Humboldt-Deutz AG, 5000 Köln GAS TURBINE ENGINE FOR AN AIRCRAFT

Also Published As

Publication number Publication date
SE8704293D0 (en) 1987-11-03
JPS63159627A (en) 1988-07-02
DE3736984A1 (en) 1988-05-05
GB8725602D0 (en) 1987-12-09
IT1223046B (en) 1990-09-12
GB2197392A (en) 1988-05-18
FR2606077A1 (en) 1988-05-06
IT8722496A0 (en) 1987-11-03

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