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> Motoare turboreactore, motoare de avioane, elicoptere....

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superblue9000
post 10 Aug 2010, 00:55
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Salut. Am cautat pe internet dar nu am gasit raspuns (-uri ) care sa ma lamureasca.
Motoarele la avion, cel cu reactie. M-am uitat in poze si drecrieri si nimic.
Problema la mine e ca nu inteleg cum sunt puse in miscare "ventilatoarele" sau paletii pentru a atrage si comprima aerul in camera de ardere.
Are un motor electric care invirte paletii ?
Ce mecanism pune in miscare paletii ca sa probage aerul si sa il comprime ?

This post has been edited by superblue9000: 10 Aug 2010, 00:57


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Cosmin.nova
post 10 Aug 2010, 01:28
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iti explica c@talin..


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ArtVandelay
post 10 Aug 2010, 01:55
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e o reactie in lanț, se pune practic singura in miscare (cu exceptia pornirii)

dar motoarele de elicoptere nu sunt MAI? huh.gif


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superblue9000
post 10 Aug 2010, 02:16
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Dar cum se produce pornirea ? Imi cer scuze ca nu inteleg.
Adica un electromotor care porneste paletii si apoi... se decupleaza ?
&feature=channel
De exemplu in acest film arata un motor turboreactor, si unde e electromotorul? In fata unde e vopsit cu albastru sau... lateral?

This post has been edited by superblue9000: 10 Aug 2010, 02:18


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ArtVandelay
post 10 Aug 2010, 02:18
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superblue9000
post 10 Aug 2010, 02:54
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Am vazut filmul. Deci, in fata, e electromotorul ( starterul - asezat in fata ) care porneste sprimul set de paleti ca sa produca aer. Aerul ajunge la umatoarele seturi de paleti care il comprima. Pe uma e camera de ardere, combustibilul e injectat in camera si in contact cu aerul comprimat se produce ardera si jetul de aer care ajunge la turbina ( tot un fel de paleti ) si se produce propulsia.
Am spus corect acum ?
In filmul pus de tine in 6:31, sub motor sunt 3 "chestii rosii". Deci alea rosii invirt primul set de paleti? Sau e pompa de compustibil?

This post has been edited by superblue9000: 10 Aug 2010, 02:57


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bogdanelkva
post 10 Aug 2010, 06:23
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C a t a l i n
post 10 Aug 2010, 08:37
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Iti explica Marty peste cateva zile...


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yhattori
post 10 Aug 2010, 09:20
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QUOTE(superblue9000 @ 10 Aug 2010, 03:54)
Am vazut filmul. Deci, in fata, e electromotorul ( starterul - asezat in fata ) care porneste sprimul set de paleti ca sa produca aer. Aerul ajunge la umatoarele seturi de paleti care il comprima. Pe uma e camera de ardere, combustibilul e injectat in camera si in contact cu aerul comprimat se produce ardera si jetul de aer care ajunge la turbina ( tot un fel de paleti ) si se produce propulsia.
Am spus corect acum ?
In filmul pus de tine in 6:31, sub motor sunt 3 "chestii rosii". Deci alea rosii invirt primul set de paleti? Sau e pompa de compustibil?
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ventilatorul e pus in miscare tot de o turbina. compresorul de alta. sint doi (la unele motoare fabricate de rolls-royce chiar trei) arbori coaxiali: compresorul si turbina de antrenare sint pe un ax si ventilatorul si turbina lui de antrenare pe un alt ax care trece PRIN primul.

o poza mai clara:

500px-Turbofan_operation.svg.png

alea trei chestii rosii sint diverse accesorii ale motorului, generatoarele electrice, starterul de pornire, FADEC-ul...


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DragosP
post 10 Aug 2010, 09:52
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Și la motoare te pricepi? blink.gif Că la cursul ăla de VLSI aplicat în viața reală m-ai spart! wacko.gif


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yhattori
post 10 Aug 2010, 10:10
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ca tot romanu...


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superblue9000
post 10 Aug 2010, 11:05
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Ok. smile.gif Startarul porneste ventilatorul si generatoarele electrice, fadec-ul.... Ventilatorul pornit atrage aerul si il directioneaza catre urmatoarele vetilatoare si il compirma care e directionat catre camera de ardere si apoi catre turbine.


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bmwh548
post 10 Aug 2010, 15:05
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QUOTE(C a t a l i n @ 10 Aug 2010, 09:37)
Iti explica Marty peste cateva zile...
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Si iti spune si pe unde vin saibele.


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C@talin
post 10 Aug 2010, 16:01
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QUOTE(Cosmin.nova @ 10 Aug 2010, 02:28)
iti explica c@talin..
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io sunt unpic ocupatcu motoarele peimp sa iiexplic baiatului ce si cum compresie da imi fac t blush.gif


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bion
post 10 Aug 2010, 16:02
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@superblue . Cati anisori ai? Ca ce intrebi tu( cu turboreactore si compustibili) m-au pus comunistii sa invat in clasa a X-a unsure.gif


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MihaiD
post 10 Aug 2010, 17:22
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QUOTE(C a t a l i n @ 10 Aug 2010, 08:37)
Iti explica Marty peste cateva zile...


...cum se pierd saibele prin motoare tongue.gif



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reladigital
post 11 Aug 2010, 16:51
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Am aflat. Startarul e un motor hidraulic care pune in miscare paletii.
Motorul arata asa: http://www.rollstar.com/images/pic_cut_motor.gif
sau http://www.rollstar.com/english/motor.htm
smile.gif

This post has been edited by reladigital: 11 Aug 2010, 16:52


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