Gwajin Sabbin injunan Mercedes: Kashi na III - Man Fetur

Muna ci gaba da jerin don ingantattun hanyoyin fasaha a cikin kewayon raka'a

Sabuwar injin mai mai shida shida M 256

M256 kuma yana nuna dawowar Mercedes-Benz zuwa jere na asali na silinda shida. Shekaru da yawa da suka gabata, an maye gurbin M272 KE35 guda shida na silinda tare da allura a cikin abubuwan amfani (KE-kanaleinspritzung) a lokaci guda tare da kusurwa tsakanin layukan silinda na digiri 90 da M276 DE 35 tare da allurar kai tsaye (DE-direkteinspritzung ) tare da kusurwar 60 aka aro daga injunan Pentastar na Chrysler. Wanda zai maye gurbin raka'a biyun da ake so shine M276 DELA30 tare da gine -ginen V6, tare da ƙaura da lita uku da tilasta caji tare da turbochargers biyu. Duk da dangin matasa na ƙarshen, Mercedes zai maye gurbinsa da injin S-Silinda M 256, wanda aka sanye shi da tsarin lantarki na 48-volt. Babban aikin na ƙarshen shine fitar da injin komputa na lantarki wanda ke cika turbocharger (kwatankwacin injin Audi na 4.0 TDI) - farkon irin wannan maganin a ɓangaren mai. Tushen wutan lantarki shine Integrated Starter Generator (ISG), wanda aka sanya a maimakon juyi da batirin lithium-ion. A lokaci guda, ISG kuma tana taka rawar wani ɓangaren tsarin matasan, amma tare da ƙaramin ƙarfin lantarki fiye da mafita makamancin haka.

A gaskiya ma, yana da wani abu mai mahimmanci na injin kanta kuma an tsara shi a matsayin wani ɓangare na shi tun farkon aikin ci gaba akan babur. Tare da 15kW na ƙarfinsa da 220Nm na karfin juyi, ISG yana taimakawa tare da haɓakawa mai ƙarfi da ƙarfin juzu'i na farko, tare da babban cajin lantarki da aka ambata, ya kai 70rpm a cikin 000ms. Bugu da kari, tsarin yana dawo da kuzari yayin birki, yana ba da damar motsin sauri akai-akai tare da ikon wutar lantarki kawai da injin aiki a cikin yanki mafi inganci tare da babban nauyi, bi da bi mai buɗewa mai faɗi ko amfani da baturi azaman cajin caji. Tare da samar da wutar lantarki na 300 volt kuma akwai manyan masu amfani da su kamar famfo na ruwa da compressor na na'urar sanyaya iska. Godiya ga duk wannan, M 48 ba ya buƙatar na'ura mai mahimmanci don fitar da janareta, ko kuma mai farawa, wanda ke ba da sararin samaniya a waje. Ƙarshen yana shagaltar da tsarin cikawar tilastawa tare da tsarin tsarin iskar iska da ke kewaye da injin. Sabuwar M256 za a gabatar da ita bisa hukuma shekara mai zuwa a cikin sabon S-Class.

Godiya ga ISG, an adana mai farawa na waje da janareta, wanda ya rage tsawon injin. A mafi kyau duka layout tare da rabuwa da ci da shaye tsarin Har ila yau, damar domin a kusa tsari na mai kara kuzari da kuma sabon tsarin domin tsabtace m barbashi (amfani da ya zuwa yanzu kawai a dizal injuna). A cikin sigar farko, sabuwar na'ura tana da ƙarfi da ƙarfi wanda ya kai matakin injunan silinda takwas na yanzu tare da 408 hp. da kuma 500 Nm, tare da raguwar kashi 15 cikin 276 na yawan amfani da man fetur da hayakin da ake fitarwa idan aka kwatanta da na yanzu M30 DELA 500. Tare da ƙaura na XNUMX cc kowace Silinda, sabon naúrar yana da mafi kyau duka, kuma bisa ga injiniyoyin BMW, ƙaura kamar na lita biyu injin dizal da aka gabatar a shekarar da ta gabata da kuma sabon injin mai mai silinda hudu.

Sabon, karami amma yafi karfin injina V4.0 lita 8

Lokacin da yake gabatar da halittar tawagarsa a cikin sabon M 176, shugaban sashin cigaban injina mai-silinda takwas, Thomas Ramsteiner, ya yi magana cike da alfahari. “Aikinmu ya fi wahala. Muna buƙatar ƙirƙirar injin silinda takwas wanda zai iya dacewa ƙarƙashin murfin C-Class. Matsalar ita ce abokan aikin da ke haɓaka injunan silinda huɗu da shida suna da sarari da yawa don tsara abubuwa masu kyau kamar cin abinci da tsarin shaye-shaye da sanyaya iska. Dole ne muyi yaƙi da kowane santimita mai siffar sukari. Mun sanya turbochargers a cikin cikin kwalin silinda da kuma sanyaya iska a gabansu. Saboda tarin zafi, muna ci gaba da zagayawa na sanyaya kuma muna sanya magoya baya koda bayan injin ya tsaya. Don kare abubuwan injina, shagunan hayaki da turbocharges suna da isasshen yanayi. "

M 176 yana da ƙaramin ƙaura fiye da wanda ya gabace shi M 278 (lita 4,6) kuma ya samo asali ne daga raka'o'in AMG M 177 (Mercedes C63 AMG) da M 178 (AMG GT) tare da kayan aiki a cikin kewayon 462 hp . har zuwa 612 hp Ba kamar na ƙarshe ba, waɗanda aka haɗa a kan injin mutum ɗaya-daya a cikin Affalterbach, M 176 za ta fi rarrabawa sosai, taru a Stuttgart-Untertürkheim kuma da farko za ta sami ƙarfin wutar lantarki na 476 hp, matsakaicin ƙarfin 700 Nm. kuma zai cinye kashi 10 na man fetur. A cikin ƙaramin sashi, wannan yana faruwa ne saboda ikon kashe huɗu daga cikin silinda takwas a nauyin injin ɓarna. Ana yin na ƙarshe tare da taimakon CAMTRONIC m bawul lokaci tsarin, a cikin abin da aiki na hudu cylinders canza zuwa yanayin da mafi girma load tare da fadi da bude magudanar bawul. Masu kunnawa takwas suna jujjuya abubuwan tare da kyamarori ta yadda bawuloli na hudu daga cikinsu su daina buɗewa. Yanayin aiki mai silinda huɗu yana faruwa a cikin yanayin rev daga 900 zuwa 3250 rpm, amma idan ana buƙatar ƙarin ƙarfi, yana kashewa a cikin millise seconds.

Pendulum na musamman na centrifugal a cikin flywheel yana da aikin rage duka biyun ƙarfin rawar jiki na huɗu a cikin aikin 8-cylinder da na oda na biyu a cikin aikin 4-cylinder. Hakanan ana inganta ingantaccen aikin thermodynamic ta hanyar haɗin cajin biturbo da allura kai tsaye tare da injector na tsakiya (duba akwatin) da murfin NANOSLIDE. Yana ba da izinin allura da yawa don haɗawa mafi kyau, kuma injin ɗin da aka rufe an yi shi da allo na aluminum kuma yana jure matsi na mashaya 140.

M-264 mai-silinda mai Mili tare da zagayen Miller

Sabon turbocharger mai-silinda huɗu ya fito ne daga injin zamani iri ɗaya kamar M 256 kuma yana da fasalin gine-gine iri ɗaya. A cewar Nico Ramsperger daga sashin injina masu hawa huɗu, ya dogara da sabon M 274 ɗin da muka riga muka yi magana akansa. A cikin sunan saurin motsawar injin, ana amfani da turbocharger mai sau biyu, kamar a cikin AMG's M 133, kuma wutar lita ta wuce 136 hp / l. Kamar mafi girma M 256, yana amfani da tsarin samar da wuta mai karfin volt 48, amma ba kamar shi ba, yana waje ne, ana ɗora bel ne kuma yana aiki a matsayin mai samar da wuta, taimaka motar don farawa da hanzarta da kuma barin canjin canjin yanayin aiki. Tsarin rarraba gas mai canzawa yana ba da aiki akan zagayen Miller.

Rubutu: Georgy Kolev