Audi 4.2 v8 injini - powertrain yakatarwa
Zviri mukati
Iyo 4.2 V8 injini ine 90 ° forogo kona. Zvimwe zvakakosha zvinosanganisira 90 mm cylinder spacing uye nzvimbo yeketani yenguva padivi reclutch. Iyo 4.2 V8 unit inoonekwa seyakagadziridzwa chete, nekuti mainjiniya emugadziri weGerman akashandisa ruzivo rwakapfuma rwakabatana nekushanda uye kugadzirwa kwekare injini modhi.
4.2 V8 injini - data data
Iyo magetsi unit yakapihwa zita rekuti BVN. Kutamiswa kwese kwaive 4134 cm3 ine simba re240 kW (360 hp), bore ye83 mm uye piston stroke ye95,5 mm ine compression ratio ye16,4: 1. Zvakare zvakakodzera kutaurwa ndeye kupfura kuraira: 1-5-4-8-6-3-7-2. Huremu hwese hweiyo drive unit yaive 255 kg.
Iyo mota inoshandisa Bosch control system - iyo EDC-16 CP + modhi, pamwe neCommon-Rail system ine jekiseni pressure inosvika 1600 bar uye nozzles ine 8 maburi. Iyo yekupedza gasi recirculation mhinduro yakagamuchirwa zvakare neyakasungirirwa mvura yekupedza gasi inotonhorera uye yekuchenesa sisitimu ine maviri oxidation catalysts uye yekuchengetedza-isina dizeli particulate sefa (DPF). Exhaust emissions yaienderana neEuro IV zviyero.
Gadzira mhinduro mudhiraivha
Vagadziri vakasarudza kesi yakagadzirwa nevermicular cast iron, yakakamurwa pamwe neaxis ye crankshaft. Chikamu chepasi chinoshandisa furemu yakaoma, inova imba yezvivharo zvinotakura zvivharo. Nekuda kwezvigadziriso izvi, pamwe chete nemidziyo yakashandiswa, huremu hwe4.2 V8 hwave hureruke nekuwanda makirogiramu gumi kana zvichienzaniswa neiyo 10 litre version.
Injini ye crankshaft yakagadzirwa kubva ku42 CR MO S4 simbi uye yakadhindwa kuitira kuti yekutanga neyechipiri torque yekuraira ienzane. Chikamu chacho chakaiswa mu 5 bearings. Izvo zvinofanirwa kucherechedzwa kuti shanduko radii ye crankpins yakawedzera kudzvanywa kuti iwedzere simba re crankshaft.
Kugadzirwa kwemotokari kunokanganisa tsika yepamusoro yebasa
Imwe yesarudzo dzakakosha muchikamu ichi yaive yakanyatso dzikama crank-piston system, iyo isina kukanganiswa nekudengenyeka, zvekuti injini haina kuburitsa ruzha rwakawanda. Uye zvakare, iyo yakawedzera huremu yeiyo torsional vibration damper uye dhiraivha ndiro inopa yakakwana chiyero chemagetsi unit.
Hunhu hwepamusoro hweinjini ye4.2 V8 hwakakanganiswawo nemagadzirirwo akaitwa musoro wecylinder, wakakweretwa kubva ku3.0 L V6 modhi. Iyo ine mavharuvhu mana pacylinder, kupeta camshafts, hydraulic lash kugadziridzwa, roller rocker maoko uye spur lash kugadzirisa sprockets.
Nekuda kwekuti mabheti anotakura anoumba yakajairwa furemu ine yakadzika chisimbiso chepamusoro, uye zvinhu zvecap ipurasitiki, uye kusungirirwa kwezvinhu kwakasimba, yakanakisa acoustic insulation yechikamu inovimbiswa.
Inoshanda kutonhora system
Inosanganisira pombi yemvura uye thermostat, iyo yakasungirirwa mune imwe imba inowanikwa kunze kwechikwata chekutyaira. Pombi inofambiswa necheni D kuburikidza nemashafi maviri nemagiya papombi yemafuta.
Bhachi remvura rinosvika pahull kuburikidza nemajekiseni maviri ejekiseni anopa chinotonhorera kumativi ekunze emagetsi emagetsi. Vaunganidzi vemvura vanokandwa kumativi ose echinhu ichi, chimwe nechimwe chine maburi mana ayo chinhu chinopihwa.
Iyo inounganidza mukamuri pakati pemabhangi e-cylinder uye inoyerera ichienda kune radiator kana yakananga kudivi rekusveta repombi yemvura, zvichienderana neiyo thermostat marongero.
Exhaust system inoshanduka kubva kuDPF
4.2 V8 inoshandisa shanduko ichienzaniswa neshanduro dzakapfuura. Izvi zvinoreva kushandiswa kwetsigiro yakatetepa-yakavezwa carborundum. Nekuda kwekuti ukobvu hwemadziro hwakaderedzwa ne37% kana ichienzaniswa neiyo 3.0L V8 vhezheni, iyo inoshanda nzvimbo yecatalyst inowedzera.
Izvi zvinoderedza kupera simba kumashure uye kupfupisa sefa yekuvandudza nguva. Iyi nzira yakaitawo kuti zvikwanise kuita kuvandudzwa kwechikamu nechekare pane tembiricha ye580-600 ° C uchiri kuchengetedza yakaderera kupera gasi backpressure.
