Audi Engine Range Test Drive - Gawo 3: 2.0 TFSI, 2.5 TFSI, 3.0 TFSI

Kupitiliza kwa mndandanda wamagalimoto oyendetsa mtunduwo

Masiku ano, opanga ma injini amakono a petulo akuyang'ana njira zochulukirachulukira kuti awonjezere luso lawo. Ndizowona kuti ma dizilo m'zaka zaposachedwa akumananso ndi kutsika kwapang'onopang'ono kwa kusamutsidwa, kuwonjezereka kwamphamvu yamagetsi ndi jakisoni, komanso nthawi zina pogwiritsa ntchito cascade turbocharging system. Komabe, akhala akugwiritsa ntchito kudzaza mokakamiza kwanthawi yayitali ndipo, mosiyana ndi anzawo amafuta, adumpha kale gawo lachisinthiko losintha kuchoka mumlengalenga kupita kudzaza mokakamiza. Mfundo yogwiritsira ntchito ma dizilo omwe ali ndi mphamvu zambiri m'masilinda ndi kusowa kwa valve yotsekemera kumapangitsa kuti poyamba azigwira ntchito bwino. Chifukwa chake, kutsitsa kwa injini zamafuta kumatenga mawonekedwe owopsa kwambiri ndikuchepetsa kuchuluka kwa masilindala ndikusintha kudzaza mokakamiza. Komabe, kutentha kwakukulu kwa mpweya wotulutsa mpweya poyerekeza ndi dizilo kumapangitsabe kugwiritsa ntchito ma geometry turbochargers osatheka (kupatulapo mayunitsi a BorgWarner a Porsche 911 Turbo), valavu yotulutsa mpweya ikupitiliza kupanga kukana kwa mpweya, ndipo opanga akufunafuna zonse. zotheka njira zina zowonjezera luso lawo. Zaka khumi zapitazo, Audi poyamba anayambitsa kuphatikiza turbocharging ndi mwachindunji jekeseni petulo ndi TFSI ake, ndipo tsopano ndi gawo latsopano 2.0 TFSI, akatswiri a kampani abwerera ku odziwika Miller mkombero - kokha mu mawonekedwe m'malo kusinthidwa. Kutsatsa kwa kampaniyo kumatcha filosofi ya chilengedwe cha injini yatsopano ndi mphamvu ya 190 hp. ndi torque pazipita 320 Nm "rightsizing", m'lingaliro la "ndendende anasankha voliyumu". Komabe, mawuwa ndi osiyana kwambiri ndi uthenga wa anzawo ochokera ku Mazda, omwe amatchula nkhaniyi popewa kudzazidwa mokakamiza.

M'malo mwake, mu Audi, turbocharging ndichinthu chofunikira pakapangidwe ka injini yatsopano, monga momwe kompresa ndimakhalidwe osasinthika a makina oyenda a Miller, omwe ndi Mazda Millenia a m'ma 90. Mchitidwewu umaphatikizapo kusunga valavu yolowera nthawi yayitali pisitoni itayamba kuchoka pansi kupita pakatikati wakufa. Pamene mpweya umayamba kubwerera kumalo ambirimbiri, makina opangira makina, omwe amachititsa kuti msana usokonezeke, amasamalira kusungidwa kwake. Poyang'ana koyamba, izi zimawoneka zopanda tanthauzo, koma pakuchita kwake kayendetsedwe kake ndikuti pakadali pano amakana pang'ono kuposa ngati akupanikizika mu silinda momwemo. Kumbali inayi, kukula kwa sitiroko yakukula kumakulirakulira mopanikizika popanda chiwopsezo cha kuphulika. Ndiye kuti, mfundo ya Miller imalola kuti kupsinjika ndi kukulitsa kuzikwaniritsidwa, m'malo mofanana ndi injini ya Otto. Zotsatira zabwino ndikuthekanso kugwira ntchito ndi valavu yotseguka yotseguka.

Kutanthauzira kwa Audi za kayendedwe ka Miller

Okonza Audi amatanthauzira mutuwu mwanjira yawoyawo. Mosiyana ndi njira yoyambira, komabe, m'malo mogwira valavu yotsegulira kuti muchepetse kuchuluka kwa kuponderezana, amangotseka kale - pisitoni isanafike pakati pakufa. M'malo mwa nthawi yotsegulira kukhala madigiri 190-200 a crankshaft rotation monga mwachizolowezi, valavu imakhala yotseguka kwa madigiri 140. Komabe, pochita, izi zimakwaniritsa zomwezo zochepetsera chiŵerengero cha kuponderezana. Kulipirira nthawi yocheperako yotsegulira kumachitika ndikuwonjezera kukakamiza kowonjezera pogwiritsa ntchito turbocharger. Chifukwa chake, injiniyo imakwaniritsa kugwiritsa ntchito injini yochepetsera, ndipo pakudzaza kwathunthu imakhala ndi magwiridwe antchito a makina akulu. Mu ntchito yonyamula katundu, jekeseni wowonjezera wamafuta amachitidwa pakukwera kwa pistoni pogwiritsa ntchito jekeseni wolunjika, womwe umakwaniritsa dongosolo lina la jekeseni muzowonjezera zambiri. Kuonjezera apo, Audi Valvelift System (AVS) ya nthawi yosinthika ya valve imalola kuti gawo lotsegulira la ma valve olowa liwonjezeke mpaka madigiri a 170 pansi pa katundu wambiri. Zowonjezera pa izi ndikuwongolera kuziziritsa kwanzeru, kuphatikizika kwautsi wophatikizika ndi mutu ndikuchepetsanso kukangana pogwiritsa ntchito mafuta otsika kwambiri (0W-20). Chifukwa cha mayankho ambiri apamwamba kwambiri, 2.0 TFSI yatsopano imakhala ndi torque yayikulu kwambiri yoyambira 1450 mpaka 4400 rpm ndipo imadya mafuta ochepa.

3.0 TFSI: Mawotchi m'malo mwa turbocharger

Anzake a Porsche adakonda kudzaza ma biturbo pama injini awo amtundu wa V6 ndi 420 hp. Kwa 3.0 TFSI, Audi imagwiritsa ntchito makina opangira makina (Eaton m'badwo wachisanu ndi chimodzi, R1320) ndimadzi / mpweya wophatikizira. Ntchito yopanga injiniyo inali yayifupi kwambiri, yomwe mwina ndi imodzi mwazomwe zimafotokozedwa pachisankhochi, ngakhale Audi akuti lingaliro ili limakondedwa chifukwa cha zabwino zina - monga kutchuka kwamtunduwu wokakamizidwa kudzaza ku United States. Zotsimikizika za yankho la Audi zikuphatikiza kompresa yomwe ili kumbuyo kwa valavu ya fulumizitsa, yomwe imakulitsa kwambiri kukhathamira kwake. Pakatundu pang'ono, valavu yapadera munyumba ya kompresa imabwezeretsa mpweya wopanikizika kuti ulowe, potero umachepetsa zotayika ndi mphamvu zofunikira kuti uzizungulira. Mwachizolowezi, mpaka mitundu ina, chipangizocho chimagwira pafupifupi ngati mota wamlengalenga ndipo pokhapokha pamphamvu kwambiri pomwe kompresa imayambira kugwira ntchito kwathunthu.

2.5 TFSI: Zisanu-yamphamvu yamitundu yaying'ono yamasewera

Chigawochi chimatsatira zambiri zamainjini ena akampani, poganizira za injini zamasilinda asanu. 2.5 TFSI, komabe, ili ndi gawo locheperapo logwiritsira ntchito komanso mphamvu zokha monga Audi RS 3, TT RS ndi RS Q3. Mu Audi TT RS kuphatikiza Baibulo, injini ndi kusamuka kwa malita 2,48 ali ndi mphamvu ya 360 HP. - yofanana ndi injini yatsopano ya AMG ya A-Silinda ya A-Class ndi zotuluka zake. Komabe, injini zisanu yamphamvu amapereka makokedwe ake pazipita 465 NM kwambiri kale (mu osiyanasiyana 1650 kuti 5400 rpm) kuposa makina anzake ku Stuttgart.

(kutsatira)

Zolemba: Georgy Kolev

Kunyumba " Zolemba " Zopanda kanthu » Makina amtundu wa Audi - Gawo 3: 2.0 TFSI, 2.5 TFSI, 3.0 TFSI

2020-08-30