4.2 v8 injin daga Audi - ƙayyadaddun sashin wutar lantarki

Injin 4.2 V8 yana da kusurwar cokali mai yatsa 90°. Sauran fasalulluka na musamman sun haɗa da tazarar silinda 90 mm da wuri na sarkar lokaci a gefen kama. Naúrar 4.2 V8 an yi la'akari da gyare-gyare na musamman, saboda injiniyoyi na masana'antun Jamus sun yi amfani da kwarewa mai yawa da ke da alaƙa da aiki da kuma samar da samfuran injin da suka gabata.

4.2 V8 injin - bayanan fasaha

An baiwa rukunin wutar lantarki lambar BVN. Jimlar ƙaura ya kasance 4134 cm3 tare da ƙarfin 240 kW (360 hp), guntun 83 mm da bugun piston na 95,5 mm tare da ƙimar matsawa na 16,4: 1. Hakanan abin lura shine odar harbe-harbe: 1-5-4-8-6-3-7-2. Jimlar nauyin naúrar tuƙi ya kai kilogiram 255.

Motar tana amfani da tsarin sarrafa Bosch - samfurin EDC-16 CP +, da tsarin Common-Rail tare da matsa lamba na allura har zuwa mashaya 1600 da nozzles tare da ramuka 8. An kuma karɓi maganin sake zagayowar iskar iskar gas tare da na'urar sanyaya iskar gas mai shayewa da tsarin tsarkakewa mai ɗauke da abubuwan haɓaka iskar oxygen guda biyu da matatar man dizal mai kyauta (DPF). Fitar da hayaki ya yi daidai da ka'idojin Yuro IV.

Zane mafita a cikin drive

Masu zanen kaya sun zaɓi wani akwati da aka yi da ƙarfe na simintin gyare-gyare na vermicular, wanda aka raba tare da axis na crankshaft. Ƙarƙashin ɓangaren yana amfani da firam mai tsauri, wanda shine mahalli na manyan iyakoki. Godiya ga waɗannan mafita, da kuma albarkatun da aka yi amfani da su, nauyin 4.2 V8 ya zama mai sauƙi ta hanyar kilo 10 idan aka kwatanta da nau'in lita 4.0.

An ƙirƙira injin crankshaft daga karfe 42 CR MO S4 kuma an tsara shi ta yadda za a daidaita ma'aunin oda na farko da na biyu. An saka bangaren a cikin bearings 5. Har ila yau, ya kamata a lura da cewa an ƙara matsawa radius na juyawa na crankpins don ƙara ƙarfin crankshaft.

Zane na motar yana rinjayar babban al'adun aiki

Ɗaya daga cikin yanke shawara mai mahimmanci a wannan yanayin shine tsarin tsarin crank-piston mai kyau sosai, wanda ba ya tasiri ta hanyar girgiza, ta yadda injin ba ya haifar da hayaniya. Bugu da kari, ƙarin nauyin damp ɗin jijjiga torsional da farantin tuƙi yana ba da ma'auni mafi kyau na rukunin wutar lantarki. 

Hakanan ingancin injin 4.2 V8 ya sami tasiri ta yadda aka kera kan Silinda, aro daga samfurin 3.0 L V6. Yana da bawuloli huɗu a kowace silinda, nadawa camshafts, daidaita lash na ruwa, nadi roka makamai da spur lash daidaita sprockets.

Saboda gaskiyar cewa ma'auni na ma'auni suna samar da firam na kowa tare da shimfidar wuri mai lebur, kuma kayan kwalliyar filastik ne, kuma ɗaurin abubuwan yana da ƙarfi, an tabbatar da ingancin sautin sauti na ɓangaren.

Ingantacciyar tsarin sanyaya

Ya ƙunshi famfo na ruwa da ma'aunin zafi da sanyio, waɗanda aka ɗora a cikin gidaje na gama gari da ke wajen sashin tuƙi. Ana sarrafa famfo ta hanyar sarkar D ta rafuka biyu da gears akan famfon mai.

Jaket ɗin ruwan ya isa ƙwanƙolin ta tashoshin allura guda biyu waɗanda ke ba da sanyaya zuwa ɓangarorin waje na toshewar tashar wutar lantarki. Ana jefa masu tara ruwa a bangarorin biyu na wannan sinadari, kowannensu yana da ramuka guda hudu da ake samar da sinadarin.

Yana tarawa a cikin ɗakin da ke tsakanin bankunan Silinda kuma yana gudana zuwa radiyo ko kai tsaye zuwa gefen tsotsa na famfo na ruwa, dangane da saitunan thermostat.

Tsarin ƙyalli yana canzawa daga DPF

4.2 V8 yana aiwatar da canje-canje idan aka kwatanta da sigogin da suka gabata. Wannan yana nufin amfani da goyan bayan carborundum mai bakin ciki. Saboda gaskiyar cewa bangon kauri ya ragu da 37% idan aka kwatanta da 3.0L V8 version, an ƙara tasiri yankin mai kara kuzari.

Wannan yana rage matsi na baya kuma yana rage lokacin farfadowar tacewa. Wannan hanya kuma ta ba da damar aiwatar da sabuntawar sashin da aka rigaya a zafin jiki na 580-600 ° C yayin da yake riƙe da ƙarancin iskar gas na baya.