NO763568L - - Google Patents
Info
- Publication number
- NO763568L NO763568L NO763568A NO763568A NO763568L NO 763568 L NO763568 L NO 763568L NO 763568 A NO763568 A NO 763568A NO 763568 A NO763568 A NO 763568A NO 763568 L NO763568 L NO 763568L
- Authority
- NO
- Norway
- Prior art keywords
- conductor
- fluid
- rotation
- eddy current
- wind
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000004804 winding Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012432 intermediate storage Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/109—Induction heating apparatus, other than furnaces, for specific applications using a susceptor using magnets rotating with respect to a susceptor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/22—Wind motors characterised by the driven apparatus the apparatus producing heat
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
- H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/21—Rotors for wind turbines
- F05B2240/211—Rotors for wind turbines with vertical axis
- F05B2240/214—Rotors for wind turbines with vertical axis of the Musgrove or "H"-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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
- General Induction Heating (AREA)
Description
Vinddrevet apparat til oppvarming av fluidum og omfattende en elektrisk hvirvelstrømgenerator Wind-driven apparatus for heating fluid and comprising an electric eddy current generator
Denne oppfinnelse vedrører oppvarming av fluidum og fortrinnsvis til romoppvarmingsformål, f.eks.oppvarming av vann, til bruk ved oppvarming av hus og/eller andre lukkede rom. This invention relates to heating fluid and preferably for space heating purposes, e.g. heating water, for use in heating houses and/or other closed spaces.
Man har foreslått å benytte vindkraft for å drive en elektrisk generator og å benytte den således fremstilte elektriske strøm med eller uten mellomlagring i lagringsbatterier til oppvar-mingsformål og andre formål. Dette forslag lider av den ulempe at det krever kostbart og komplisert utstyr, såsom strømomformere It has been proposed to use wind power to drive an electric generator and to use the electric current thus produced with or without intermediate storage in storage batteries for heating purposes and other purposes. This proposal suffers from the disadvantage that it requires expensive and complicated equipment, such as power converters
samt lagringsbatterier.as well as storage batteries.
Ifølge oppfinnelsen er det tilveiebragt et apparat til oppvarming av fluidum omfattende en hvirvelstrømanordning som når According to the invention, there is provided an apparatus for heating fluid comprising an eddy current device which reaches
den drives, kan brukes til å utvikle og overføre varme til et fluidum samt innretninger til overføring av drivkraft fra vind til anordningen. it is driven, can be used to develop and transfer heat to a fluid as well as devices for transferring motive power from wind to the device.
Oppfinnelsen skal forklares nærmere ved hjelp av et ek-sempel under henvisning til tegningen, hvor: Fig. 1 viser skjematisk og tildels i snitt og i perspek-tiv en utførelse av oppfinnelsen, fig. 2 viser en detalj til fig. 1 i en alternativ utførelse, og fig. 3 viser et alternativ til fig. 1. The invention shall be explained in more detail by means of an example with reference to the drawing, where: Fig. 1 shows schematically and partly in section and in perspective an embodiment of the invention, fig. 2 shows a detail of fig. 1 in an alternative embodiment, and fig. 3 shows an alternative to fig. 1.
På fig. 1 er det vist et apparat til oppvarming av fluidum utført i samsvar med en utførelse av oppfinnelsen. I hovedsa-ken omfatter apparatet en hvirvelstrømanordning betegnet med 1 som under drift kan utvikle varme og overføre den til et fluidum, samt innretninger .som er betegnet med 2 og tjener til overføring av In fig. 1 shows an apparatus for heating fluid made in accordance with an embodiment of the invention. In the main, the device comprises an eddy current device denoted by 1 which during operation can generate heat and transfer it to a fluid, as well as devices denoted by 2 and serve to transfer
vindkraft fra vind W til anordningen 1.wind power from wind W to device 1.
Hvirvelstrømanordningen 1 er en anordning hvor elektrisk strøm dannes i en metallisk leder som følge av lederens relative bevegelse i forhold til et magnetisk felt, hvor strømmen (den så-kalte hvirvelstrøm) tjener til å utvikle varme i lederen. Det mag-netiske felt kan tilveiebringes ved hjelp av en eller flere magne- ter og og for å gjøre passeringen av strømmen fra lederen lettere The eddy current device 1 is a device where electric current is formed in a metallic conductor as a result of the conductor's relative movement in relation to a magnetic field, where the current (the so-called eddy current) serves to generate heat in the conductor. The magnetic field can be provided by means of one or more magnets and to make the passage of the current from the conductor easier
er magneten fortrinnsvis anbrakt roterbart mens lederen er montert stasjonært. I hvirvelstrømanordningen 1 på fig. 1 er en magnet 3 the magnet is preferably mounted rotatably while the conductor is mounted stationary. In the eddy current device 1 in fig. 1 is a magnet 3
anordnet roterbart i en stasjonær leder 4 som er i form av en sy-linder eller trommel fremstilt av metall, såsom kobber eller alu-minium. arranged rotatably in a stationary conductor 4 which is in the form of a cylinder or drum made of metal, such as copper or aluminium.
Rotasjonskraften overføres til magneten 3 fra vinden W ved hjelp av en drivoverføringsinnretning 2 som kan kobles til magneten 3. Overføringsinnretningen 2 omfatter en aksel 5 som kan kobles til magneten 3 og en vindmølle som er festet på akselen 5. Vindmøllen har blad såsom 6 anordnet for å rotere om en rotasjonsakse som i det vesentlige forløper vinkelrett på vindens retning. The rotational force is transferred to the magnet 3 from the wind W by means of a drive transmission device 2 which can be connected to the magnet 3. The transmission device 2 comprises a shaft 5 which can be connected to the magnet 3 and a windmill which is attached to the shaft 5. The windmill has blades such as 6 arranged for to rotate about an axis of rotation which essentially runs perpendicular to the direction of the wind.
Vindmøllebladene 6 er som vist på fig. 1 krummet i dreie-aksens retning, dvs. i dette tilfelle akselens 5 lengdeakse og har hensiktsmessig aerodynamisk tverrsnitt. Vindmøllen har iføl-ge fig. 1 fire blad, men den kan godt ha færre eller flere blad The windmill blades 6 are, as shown in fig. 1 curved in the direction of the axis of rotation, i.e. in this case the longitudinal axis of the shaft 5 and has an appropriate aerodynamic cross-section. According to fig. 1 four leaves, but it may well have fewer or more leaves
enn vist og de behøver heller ikke å være krummet. Den krumme, fortrinnsvis troposkaktige, bladkonfigurasjon er ikke særlig ef-fektiv, idet bare 55% av bladets lengde kan arbeide effektivt. than shown and they do not need to be curved either. The curved, preferably tropic-like, blade configuration is not very effective, as only 55% of the blade's length can work effectively.
Selv om en slik lav virkningsgrad kan godtas for store apparater, er blad-utformingen ifølge fig. 2 og 3 å foretrekke for mindre apparater . Although such a low efficiency can be accepted for large devices, the blade design according to fig. 2 and 3 to be preferred for smaller appliances.
Den alternative bladutforming på fig. 2 og 3 omfatter blad 7 som forløper rettlinjet i det vesentlige parallelt med og i avstand fra vindmøllens rotasjonsakse, som i disse utførelser er koaksial med akselen 5. Bladene 7 på fig. 2 er ved begge ender forbundet med akselen 5 ved hjelp av støtter 8 som sikrer en noe stivere konstruksjon enn den som er vist på fig. 3, hvor bladene 7 ved hjelp av en enkelt støtte 9 midt imellom bladenes 7 ender er forbundet med enden av akselen 5. The alternative blade design in fig. 2 and 3 comprise blade 7 which extends in a straight line essentially parallel to and at a distance from the axis of rotation of the windmill, which in these embodiments is coaxial with the axis 5. The blades 7 in fig. 2 is connected at both ends to the shaft 5 by means of supports 8 which ensure a somewhat stiffer construction than that shown in fig. 3, where the blades 7 are connected to the end of the shaft 5 by means of a single support 9 midway between the ends of the blades 7.
Bladene 6,7 er fortrinnsvis utført av et laminat som er armert med glass. Drivoverføringsinnretningen 2 kan omfatte ut-veksling mellom vindmøllen og den drevne del av hvirvelstrømanord-ningen 1 for økning av akselens 5 rotasjonshastighet og derved apparatets virkningsgrad. The blades 6,7 are preferably made of a laminate which is reinforced with glass. The drive transmission device 2 can comprise exchange between the windmill and the driven part of the eddy current device 1 to increase the rotational speed of the shaft 5 and thereby the efficiency of the device.
Apparatets ytelse kan måles med den varmemengde som utvikles og overføres til. fluidet. Apparatet ifølge oppfinnelsen har f.eks. en varmeytelse på 75 watt når magnetens rotasjonshastighet er 700 omdreininger pr. minutt og øker til 150 watt ved The device's performance can be measured by the amount of heat that is developed and transferred to it. the fluid. The device according to the invention has e.g. a heat output of 75 watts when the magnet's rotation speed is 700 revolutions per minute and increases to 150 watts at
1050 opm og 225 watt ved 1425 opm. Det fluidum som skal oppvarmes, 1050 rpm and 225 watts at 1425 rpm. The fluid to be heated,
er fortrinnsvis vann til husholdnings formål og/eller romoppvar-ming. For at overføringen av varme fra hvirvelstrømanordningen », til fluidet skal falle lettere, omfatter apparatet en beholder is preferably water for household purposes and/or space heating. In order for the transfer of heat from the eddy current device », to the fluid to fall more easily, the apparatus comprises a container
som har i det minste en passasje for sirkulasjon av fluidet.which has at least one passage for circulation of the fluid.
I apparatet på fig. 1 er denne beholder i form av en hul vannkappe 10 hvori vann kan sirkulere gjennom et innløpsrør 11 In the apparatus of fig. 1, this container is in the form of a hollow water jacket 10 in which water can circulate through an inlet pipe 11
og et utløpsrør 12. Som vist på fig. 1 er hvirvelstrømanordnin-gen 1 anbrakt innenfor kappen 10 og lederen 4 holdes stasjonært innenfor kappen ved hjelp av støtter 13. I en ikke vist alternativ utførelse kan beholderen være i form av en rørkveil som strek-ker seg rundt lederen. and an outlet pipe 12. As shown in fig. 1, the eddy current device 1 is placed inside the sheath 10 and the conductor 4 is held stationary within the sheath by means of supports 13. In an alternative embodiment not shown, the container can be in the form of a tube coil that extends around the conductor.
Uansett hva slags form beholderen har, sirkulerer vannet gjennom beholderen for bortføring av varmen som utvikles i led-ningen 4. I apparatet ifølge fig. 1 går vannet inn gjennom inn-løpsrøret 11, strømmer over lederen 4 og ut gjennom utløpsrøret 12. Fra utløpet kan oppvarmet vann føres i krets direkte gjennom varmekretsløp eller benyttes til oppvarming av vann i en sådan krets eller i en varmtvannslagringstank for vanlig varmeutveksling. Regardless of the shape of the container, the water circulates through the container to remove the heat developed in the line 4. In the apparatus according to fig. 1, the water enters through the inlet pipe 11, flows over the conductor 4 and out through the outlet pipe 12. From the outlet, heated water can be fed into a circuit directly through a heating circuit or used to heat water in such a circuit or in a hot water storage tank for normal heat exchange.
Vannsirkulasjonen kan tilveiebringes på en hvilken som helst kjent måte, f.eks. ved hjelp av en rotor 14 som drives direkte fra en forlengelse av akselen 5, som vist på fig. 1. Vann-sirkulas jonen vil da øke sammen med akselens rotasjon, dvs. med vindens hastighet,og bli størst ved maksimalt varmeinntak. The water circulation can be provided in any known way, e.g. by means of a rotor 14 which is driven directly from an extension of the shaft 5, as shown in fig. 1. The water circulation will then increase together with the rotation of the shaft, i.e. with the speed of the wind, and will be greatest at maximum heat intake.
I en alternativ utførelse kan hvirvelstrømanordningen plasseres direkte i en varmtvannslagringstank, slik at behovet for en varmeutveksler eller en sirkulasjonsvirkning elimineres. Videre kan apparatet ifølge oppfinnelsen fordelaktig benyttes til supplering av oppvarming ved hjelp av solenergi. In an alternative embodiment, the eddy current device can be placed directly in a hot water storage tank, so that the need for a heat exchanger or a circulation effect is eliminated. Furthermore, the device according to the invention can advantageously be used to supplement heating by means of solar energy.
Claims (13)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4361375 | 1975-10-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO763568L true NO763568L (en) | 1977-04-26 |
Family
ID=10429535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO763568A NO763568L (en) | 1975-10-23 | 1976-10-19 |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5252251A (en) |
| BE (1) | BE847555A (en) |
| DE (1) | DE2647741A1 (en) |
| DK (1) | DK477676A (en) |
| FR (1) | FR2328931A1 (en) |
| NL (1) | NL7611301A (en) |
| NO (1) | NO763568L (en) |
| SE (1) | SE7611747L (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2452846A1 (en) * | 1979-03-27 | 1980-10-24 | Golecki Jean | Generation of heat from foucault currents - uses rotation of permanent magnet inside cylindrical copper heat extraction jacket |
| FR2460457A1 (en) * | 1979-06-29 | 1981-01-23 | Denefle Louis | Heater converting mechanical energy into heat - uses coils to induce current in hollow rotating disc contg. fluid being heated |
| DE3009027C2 (en) * | 1980-03-08 | 1985-08-08 | Mannesmann AG, 4000 Düsseldorf | Permanent magnet excited eddy current brake in a liquid-filled container for a direct conversion of wind or mechanical energy into thermal energy |
| DE3045099C2 (en) * | 1980-11-29 | 1983-04-21 | Greiner, Peter, 7922 Herbrechtingen | Device for converting heat for heating purposes |
| JPS57131875A (en) * | 1981-02-09 | 1982-08-14 | Hitachi Ltd | Energy converting device |
| FR2502257A1 (en) * | 1981-03-17 | 1982-09-24 | Merlin Gabriel | Wind driven heat generator - has wind driven compressor for liquid in closed circuit resulting in heat removed by exchanger |
| AT395653B (en) * | 1985-07-09 | 1993-02-25 | Kobermann Peter | Apparatus for the heating of rooms by means of wind energy |
| AU2318495A (en) * | 1995-04-10 | 1996-10-30 | Michele Bufis | Combined aeolian and solar energy converter |
| IT1282751B1 (en) * | 1996-05-29 | 1998-03-31 | Railfix N V | PERMANENT MAGNET BOILERS |
| JP3955888B2 (en) * | 2003-12-12 | 2007-08-08 | トック・エンジニアリング株式会社 | Permanent magnet type eddy current heating device |
| RU2331024C2 (en) * | 2006-03-06 | 2008-08-10 | Закрытое акционерное общество "Электроника силовая" | Method of regulating heat exchange in room |
| FR2929380B1 (en) * | 2008-04-01 | 2011-01-14 | R E M | DEVICE FOR THE RAPID PRODUCTION OF HOT WATER OR STEAM. |
| DE202008010970U1 (en) | 2008-08-18 | 2008-12-11 | Pfeiffer, Bernd, Dipl.-Ing. (FH) | Nutzwärmegenerator with EE |
| JP5293626B2 (en) * | 2010-01-29 | 2013-09-18 | 住友電気工業株式会社 | Induction heating apparatus and power generation system including the same |
| WO2011093192A1 (en) * | 2010-01-29 | 2011-08-04 | 住友電気工業株式会社 | Power generation system |
| JP5545436B2 (en) * | 2010-03-31 | 2014-07-09 | 住友電気工業株式会社 | Power generation system |
| JP5435357B2 (en) * | 2010-02-26 | 2014-03-05 | 住友電気工業株式会社 | Power generation system |
| CN103307731A (en) * | 2012-03-07 | 2013-09-18 | 西北农林科技大学 | Liquid Stirring Wind Heater |
| ES2385233B1 (en) * | 2012-06-22 | 2013-03-26 | E3 Eficacia Energética Eólica, S.L. | Combined Energy Collector |
| LT6124B (en) * | 2013-04-08 | 2015-03-25 | Uab "Thermal Generator" | Rotational thermal generator |
| JP6380148B2 (en) * | 2015-02-10 | 2018-08-29 | 新日鐵住金株式会社 | Eddy current heating device |
| DE102016125500A1 (en) | 2016-12-22 | 2018-06-28 | Andreas Seiwald | Rotary induction heating with DC excitation |
| CN107906768A (en) * | 2017-12-08 | 2018-04-13 | 上海应用技术大学 | A kind of multi-functional energy conversion system |
| DE102018108179A1 (en) | 2018-04-06 | 2019-10-10 | Andreas Seiwald | Rotary induction heat generator with DC excitation, extremely low electrical / kinetic efficiency and extremely high thermal COP |
| CN109356794B (en) * | 2018-11-29 | 2020-03-10 | 东北电力大学 | Magnetic eddy current heating device with wide-power-range self-regulation characteristic based on wind energy |
| CN111780404B (en) * | 2020-07-02 | 2021-11-30 | 石家庄爱迪尔电气有限公司 | Energy-concerving and environment-protective heating stove of intelligence frequency conversion |
-
1976
- 1976-10-12 FR FR7630631A patent/FR2328931A1/en not_active Withdrawn
- 1976-10-13 NL NL7611301A patent/NL7611301A/en not_active Application Discontinuation
- 1976-10-19 NO NO763568A patent/NO763568L/no unknown
- 1976-10-22 DE DE19762647741 patent/DE2647741A1/en active Pending
- 1976-10-22 JP JP12634376A patent/JPS5252251A/en active Pending
- 1976-10-22 DK DK477676A patent/DK477676A/en unknown
- 1976-10-22 SE SE7611747A patent/SE7611747L/en unknown
- 1976-10-22 BE BE171722A patent/BE847555A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK477676A (en) | 1977-04-24 |
| DE2647741A1 (en) | 1977-04-28 |
| JPS5252251A (en) | 1977-04-26 |
| BE847555A (en) | 1977-04-22 |
| NL7611301A (en) | 1977-04-26 |
| FR2328931A1 (en) | 1977-05-20 |
| SE7611747L (en) | 1977-04-24 |
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