{"id":566,"date":"2022-11-25T16:08:17","date_gmt":"2022-11-25T13:08:17","guid":{"rendered":"https:\/\/legendhomework.com\/tr\/?p=566"},"modified":"2022-11-25T16:08:17","modified_gmt":"2022-11-25T13:08:17","slug":"enduksiyon-sistemi-arac-muhendisligi-bolumu-arac-muhendisligi-odevleri-yaptirma-arac-muhendisligi-bolumu-tez-yaptirma-arac-muhendisligi-bolumu-odev-ucretle","status":"publish","type":"post","link":"https:\/\/legendhomework.com\/tr\/enduksiyon-sistemi-arac-muhendisligi-bolumu-arac-muhendisligi-odevleri-yaptirma-arac-muhendisligi-bolumu-tez-yaptirma-arac-muhendisligi-bolumu-odev-ucretle\/","title":{"rendered":"\u00a0End\u00fcksiyon Sistemi \u2013 Ara\u00e7 M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc \u2013 Ara\u00e7 M\u00fchendisli\u011fi \u00d6devleri Yapt\u0131rma \u2013 Ara\u00e7 M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc Tez Yapt\u0131rma\u2013 Ara\u00e7 M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc \u00d6dev \u00dccretleri"},"content":{"rendered":"

\u00a0End\u00fcksiyon Sistemi<\/span><\/strong><\/h3>\n

Krank mili, e\u015fit ate\u015fleme sa\u011flamak i\u00e7in ofset pimlere sahiptir, ana ve b\u00fcy\u00fck u\u00e7lar s\u0131ras\u0131yla 50 ve 42 mm’dir. Ba\u011flant\u0131 \u00e7ubuklar\u0131 yaln\u0131zca 0,49 kg a\u011f\u0131rl\u0131\u011f\u0131ndad\u0131r ve merkezler aras\u0131 128 mm’dir; piston a\u011f\u0131rl\u0131\u011f\u0131 da 0,4 kg’da tutulmu\u015ftur.<\/span><\/p>\n

End\u00fcksiyon sistemi, WOT torkunu geni\u015f bir h\u0131z band\u0131na yaymaya yard\u0131mc\u0131 olan de\u011fi\u015fken geometrili bir plenum i\u00e7erir. Plenumdaki iki hazne, bir s\u0131ra silindiri ayr\u0131 ayr\u0131 besler; motor y\u00f6netim sistemi taraf\u0131ndan kontrol edilen de\u011fi\u015ftirilebilir valflere sahip iki boru ile birbirine ba\u011flan\u0131rlar.<\/span><\/p>\n

Geleneksel bir plenum-k\u0131smal\u0131 motorda, giri\u015f ve egzoz portlar\u0131 aras\u0131ndaki k\u0131smi k\u0131smada bas\u0131n\u00e7 fark\u0131 vard\u0131r. Geleneksel olarak, egzoz strokunun sonuna do\u011fru giri\u015f ve egzoz valfleri e\u015f zamanl\u0131 olarak a\u00e7\u0131l\u0131r, bu da art\u0131k egzoz gaz\u0131n\u0131n giri\u015f portuna geri akmas\u0131na izin verir, bunun sonucunda \u015farj azalmas\u0131 NOx emisyonunu d\u00fc\u015f\u00fcr\u00fcr.<\/span><\/p>\n

Harici bir EGR sistemi, bu i\u015flemi harici borularla vurgulayacakt\u0131r. MBA, HC a\u00e7\u0131s\u0131ndan zengin egzoz gazlar\u0131n\u0131 sirk\u00fcle eden patentli bir dahili EGR sistemine sahiptir; bu, hem NOx hem de HC emisyonlar\u0131n\u0131 azaltt\u0131\u011f\u0131n\u0131 iddia ediyor.<\/span><\/p>\n

Y\u00fcksek performansl\u0131 bir motor genellikle uzun kam s\u00fcreleri ve geni\u015f bir valf \u00f6rt\u00fc\u015fme s\u00fcresi gerektirir ve sonu\u00e7ta ortaya \u00e7\u0131kan egzoz seyrelmesi, geleneksel bir \u00fcniteden daha fazlad\u0131r. MBA’de bunun neden olaca\u011f\u0131 kaba \u00e7al\u0131\u015fma, ters ak\u0131\u015flar\u0131 s\u0131n\u0131rlayan ba\u011flant\u0131 noktas\u0131 k\u0131s\u0131tlamas\u0131 ile \u00f6nlenir.<\/span><\/p>\n

\u0130nd\u00fcksiyon s\u0131ras\u0131nda giri\u015f portunda olu\u015fan \u00e7\u00f6k\u00fcnt\u00fc, h\u0131z ve y\u00fck ko\u015fullar\u0131na g\u00f6re giri\u015f valfi kapand\u0131ktan sonra d\u00fczelir. Giri\u015f yeniden a\u00e7\u0131ld\u0131\u011f\u0131nda, giri\u015f ve \u00e7\u0131k\u0131\u015f portlar\u0131 aras\u0131nda \u00e7ok az bas\u0131n\u00e7 fark\u0131 olur.<\/span><\/p>\n

MBA’daki ba\u011f\u0131ms\u0131z k\u0131sma mekanizmas\u0131, giri\u015f valflerinin ak\u0131\u015f yukar\u0131s\u0131nda bir port-k\u0131sma i\u00e7erir, kanallar ortak bir plenuma beslenir. Bu nedenle, belirli bir h\u0131z ve y\u00fckte, egzoz gaz\u0131 seyreltme derecesi, giri\u015f a\u011fz\u0131 al\u00e7almas\u0131n\u0131n bir fonksiyonudur. Bu nedenle dahili EGR, iki gaz kelebe\u011fi aras\u0131ndaki ili\u015fki taraf\u0131ndan kontrol edilir.<\/span><\/p>\n

Geli\u015fmi\u015f Araba ve Kamyon Motorlar\u0131<\/span><\/strong><\/h3>\n

Lotus Engineering’in Jewel Projesi, gelecekteki motor gereksinimlerinin baz\u0131 zorluklar\u0131n\u0131 kar\u015f\u0131lamay\u0131 ama\u00e7lamaktad\u0131r.<\/span><\/p>\n

Kafadan ana su ceketine \u0131s\u0131 ak\u0131\u015f\u0131n\u0131 iyile\u015ftirmek i\u00e7in bir monoblok tasar\u0131m i\u00e7erir, silindir kafas\u0131 al\u00fcminyum ala\u015f\u0131ml\u0131 monoblok ile aray\u00fcz olu\u015fturan sertle\u015ftirilmi\u015f y\u00fczeylere sahiptir. Sonu\u00e7 olarak, pistonlar ve g\u00f6mlekler i\u00e7in d\u00fc\u015f\u00fck s\u0131cakl\u0131klar, daha y\u00fcksek motor verimlili\u011fi i\u00e7in s\u0131k\u0131\u015ft\u0131rma oran\u0131n\u0131n g\u00fcvenli bir \u015fekilde y\u00fckseltilmesine izin verir.<\/span><\/p>\n

\u0130\u00e7i bo\u015f bir krank mili a\u011f\u0131rl\u0131ktan tasarruf sa\u011flar ve atalet kuvvetlerini d\u00fc\u015f\u00fcr\u00fcr, ayr\u0131ca metal matris bile\u015fik biyel kollar\u0131n\u0131n kullan\u0131lmas\u0131 da buna yard\u0131mc\u0131 olur. CTP kompozit kullan\u0131m\u0131 ile su pompas\u0131 ve termostat g\u00f6vdesi gibi par\u00e7alar\u0131n korozyonu \u00f6nlenir; yak\u0131t raylar\u0131 da hem daha hafif hem de yak\u0131t\u0131n buharla\u015fmas\u0131na kar\u015f\u0131 daha iyi termal \u00f6zellikler i\u00e7in enjeksiyonla kal\u0131planm\u0131\u015ft\u0131r.<\/span><\/p>\n

So\u011futucu ceketin kam kapaklar\u0131 ve d\u0131\u015f duvarlar\u0131 da kompozit yap\u0131dad\u0131r. Kau\u00e7uk bir ba\u011flant\u0131, ses iletimini azaltmak i\u00e7in monoblok d\u00f6k\u00fcm\u00fc manifolddan ve hazneden izole eder.<\/span><\/p>\n

Scania, en iyi benzinli motor rakam\u0131ndan %10 daha y\u00fcksek, %46’l\u0131k bir verimlilikle bir turbo bile\u015fik dizel motorun seri \u00fcretimini \u00fcstlenen ilk kamyon \u00fcreticisi oldu.<\/span><\/p>\n

Egzoz enerjisi iki a\u015famada geri kazan\u0131l\u0131r; birinci turbo\u015farj (1), silindirlere daha fazla hava zorlamak i\u00e7in bir kompres\u00f6r\u00fc \u00e7al\u0131\u015ft\u0131r\u0131rken, ikincisi bir hidrolik kaplin ve di\u015fli tak\u0131m\u0131 (3) yoluyla volana (4) ek g\u00fc\u00e7 sa\u011flayan bir g\u00fc\u00e7 t\u00fcrbinidir (2). G\u00fc\u00e7 ve tork, 400 bhp ve 1750 Nm’de yakla\u015f\u0131k %5 daha y\u00fcksektir. Ayr\u0131ca \u00f6zg\u00fcl yak\u0131t t\u00fcketiminde 6 gm\/kWh tasarruf sa\u011flanmaktad\u0131r.<\/span><\/p>\n

\n

\u0130nd\u00fcksiyon Is\u0131tma Sistemleri<\/span>
\nManyetik ind\u00fcksiyon form\u00fcl\u00fc<\/span>
\n\u0130nd\u00fcksiyon<\/a> Is\u0131t\u0131c\u0131 Fiyatlar\u0131<\/span>
\nElektromanyetik ind\u00fcksiyon<\/span>
\n\u0130nd\u00fcksiyon \u0131s\u0131tma MAK\u0130NES\u0130<\/span>
\n\u0130nd\u00fcksiyon \u0131s\u0131tma<\/span>
\nTencerede ind\u00fcksiyon ne demek<\/span>
\nT\u0131pta ind\u00fcksiyon Ne Demek<\/span><\/p>\n

\n

\u015eeklin solunda g\u00fc\u00e7 t\u00fcrbini, turbo\u015farj t\u00fcrbininin ak\u0131\u015f a\u015fa\u011f\u0131s\u0131nda g\u00f6r\u00fclmektedir; turbo\u015farj t\u00fcrbini, y\u00fcksek motor h\u0131z\u0131nda k\u00fctle ak\u0131\u015f\u0131na g\u00f6re k\u00fc\u00e7\u00fckt\u00fcr; burada g\u00fc\u00e7 t\u00fcrbini boyunca bas\u0131n\u00e7 oran\u0131 y\u00fcksek oldu\u011fundan, yine de kompres\u00f6r\u00fc \u00e7al\u0131\u015ft\u0131rmak i\u00e7in yeterli \u00e7\u0131k\u0131\u015f sa\u011flar.\u00a0<\/span><\/p>\n

D\u00fc\u015f\u00fck h\u0131zda, bas\u0131n\u00e7 oran\u0131 d\u00fc\u015f\u00fcr\u00fcld\u00fc\u011f\u00fcnde, kompres\u00f6r\u00fcn bas\u0131n\u00e7 oran\u0131 k\u0131smen k\u00fc\u00e7\u00fck t\u00fcrbin muhafazas\u0131 nedeniyle korunur. D\u00fc\u015f\u00fck h\u0131zda artan \u015farj bas\u0131nc\u0131, b\u00f6ylece hava\/yak\u0131t oran\u0131 \u00e7ok d\u00fc\u015fmeden daha fazla yak\u0131t enjekte etmeyi ve torku art\u0131rmay\u0131 m\u00fcmk\u00fcn k\u0131lar.<\/span><\/p>\n

G\u00fc\u00e7 t\u00fcrbini, krank miline iki kademeli d\u00fcz di\u015fli seti ve hidrolik kaplin arac\u0131l\u0131\u011f\u0131yla ba\u011flan\u0131r. Krank mili h\u0131z\u0131na d\u00f6n\u00fc\u015ft\u00fcr\u00fclen g\u00fc\u00e7 t\u00fcrbininin k\u00fctle ataleti, normal bir volan\u0131n yakla\u015f\u0131k yar\u0131s\u0131 kadard\u0131r; ‘yumu\u015fak’ ba\u011flant\u0131, tepe tork genliklerini azalt\u0131r.<\/span><\/p>\n

Kurulumun, Scania m\u00fchendisleri taraf\u0131ndan, baz\u0131lar\u0131 100’den fazla hareketli par\u00e7a i\u00e7eren ve g\u00fcvenilirlik sorunlar\u0131na yatk\u0131n olan de\u011fi\u015fken geometrili bir turbo\u015farjdan daha tatmin edici bir rota oldu\u011funa inan\u0131l\u0131yor. Ancak, en b\u00fcy\u00fck avantaj\u0131n a\u011f\u0131r ve s\u00fcrekli y\u00fckler alt\u0131nda \u00e7al\u0131\u015fan motorlarda geldi\u011fine dikkat \u00e7ekilmektedir.<\/span><\/p>\n

\u0130yile\u015ftirilmi\u015f motor s\u0131cakl\u0131\u011f\u0131 y\u00f6netimi ve diferansiyel genle\u015fme kontrol\u00fc<\/span><\/strong><\/h4>\n

Bir motorun so\u011fuma \u00e7evrimi s\u0131ras\u0131nda, yand\u0131ktan sonra, baz\u0131 bile\u015fenler taraf\u0131ndan gere\u011finden fazla uzun s\u00fcre \u0131s\u0131 tutulabilir. Bu \u0131s\u0131, motor verimlili\u011finde meydana gelen kay\u0131pla birlikte gelen hava-yak\u0131t y\u00fck\u00fcne geri akabilir.<\/span><\/p>\n

Bu nedenle tasar\u0131m, piston y\u00fczey s\u0131cakl\u0131\u011f\u0131n\u0131 s\u0131n\u0131rlamak ve termal genle\u015fmeyi kontrol etmek i\u00e7in yanma odas\u0131 ve \u015farj end\u00fcksiyon y\u00fczeylerinin \u0131s\u0131y\u0131 se\u00e7ici bir \u015fekilde depolamas\u0131n\u0131 ve serbest b\u0131rakmas\u0131n\u0131 sa\u011flamay\u0131 ama\u00e7lamaktad\u0131r. Yanma s\u00fcrecinden \u00e7\u0131kan \u0131s\u0131y\u0131 y\u00f6netmek i\u00e7in motor yanma odalar\u0131n\u0131n i\u00e7 duvarlar\u0131nda p\u00fcsk\u00fcrt\u00fclm\u00fc\u015f yal\u0131tkan kaplamalar\u0131n kullan\u0131lmas\u0131 burada \u00f6nerilmi\u015ftir.<\/span><\/p>\n

Diferansiyel genle\u015fmeyi engellemek i\u00e7in piston ba\u015fl\u0131\u011f\u0131na d\u00fc\u015f\u00fck termal genle\u015fmeli\/y\u00fcksek iletkenlikli bir par\u00e7a da d\u00f6k\u00fclm\u00fc\u015ft\u00fcr. Bo\u015flu\u011fu azaltmak ve dolay\u0131s\u0131yla \u0131s\u0131 transferini art\u0131rmak i\u00e7in \u00fcst halkan\u0131n yukar\u0131s\u0131ndaki piston duvarlar\u0131na da a\u015f\u0131nabilir bir kaplama p\u00fcsk\u00fcrt\u00fcl\u00fcr.<\/span><\/p>\n

Giri\u015f ve egzoz manifoldlar\u0131 i\u00e7in \u00e7ift cidarl\u0131 yap\u0131yla birlikte ta\u00e7 alt\u0131nda ya\u011f p\u00fcsk\u00fcrtmeli so\u011futma da kullan\u0131l\u0131r; bunun net etkisi vuruntu ba\u015flang\u0131c\u0131n\u0131 azaltmakt\u0131r ve bu nedenle daha y\u00fcksek verimlilik sa\u011flamak i\u00e7in daha y\u00fcksek s\u0131k\u0131\u015ft\u0131rma oranlar\u0131n\u0131n kullan\u0131lmas\u0131na izin verir.\u00a0<\/span><\/p>\n

Farkl\u0131 malzemelerdeki motor silindir kafas\u0131 ve blo\u011funun diferansiyel termal genle\u015fmesi sorununun tasar\u0131mda a\u015f\u0131ld\u0131\u011f\u0131 s\u00f6yleniyor.<\/span><\/p>\n

Al\u00fcminyum ala\u015f\u0131ml\u0131 bir kafa, blo\u011fun derinliklerinde di\u015fli \u00e7\u0131k\u0131nt\u0131lara ge\u00e7en ekstra uzun c\u0131vatalarla bir d\u00f6kme demir silindir blo\u011funa sabitlenmi\u015ftir. Di\u015fli k\u0131s\u0131mlar\u0131n \u00fczerinde, c\u0131vatalar ya\u011f galerilerinden ge\u00e7er ve destek y\u00fczeyleri aras\u0131ndaki silindir kafas\u0131n\u0131n genle\u015fmesini telafi etmek i\u00e7in do\u011fru do\u011frusal genle\u015fmeye neden olacak \u015fekilde yeterince \u0131s\u0131t\u0131l\u0131r.<\/span><\/p>\n

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