M52B25 engine daga BMW - fasaha halaye da kuma aiki na naúrar
Abubuwa
An samar da injin M52B25 daga 1994 zuwa 2000. A cikin 1998, an yi canje-canjen ƙira da yawa, sakamakon abin da aikin naúrar ya inganta. Bayan an gama rarraba samfurin M52B25, an maye gurbinsa da sigar M54. Ƙungiyar ta ji daɗin saninsa, kuma tabbacin wannan wuri ne na dindindin a cikin jerin 10 mafi kyawun injuna na mujallar Ward - daga 1997 zuwa 2000. Gabatar da mafi mahimman bayanai game da M52B25!
M52B25 engine - fasaha bayanai
Samar da wannan samfurin injuna an gudanar da shi ta hanyar masana'antar Bavaria Munich Plant a Munich. An ƙera lambar injin M52B25 a cikin ƙirar bugun jini huɗu tare da silinda shida da aka ɗora a madaidaiciyar layi tare da crankcase inda duk pistons ke motsa su ta hanyar crankshaft na gama gari.
Matsakaicin madaidaicin injin mai shine 2 cm³. An kuma zaɓi tsarin allurar mai, umarnin harbe-harbe na kowane Silinda ya kasance 494-1-5-3-6-2 da matsi na 4:10,5. Jimlar nauyin injin M1B52 shine kilogiram 25. Injin M52B25 kuma yana sanye da tsarin VANOS guda ɗaya - Canjin Camshaft Timeing.
Wadanne samfuran mota ne suka yi amfani da injin?
An shigar da injin mai lita 2.5 akan samfuran BMW 323i (E36), BMW 323ti (E36/5) da BMW 523i (E39/0). An yi amfani da naúrar ta damuwa daga 1995 zuwa 2000.
Hanyar gini na sashin tuƙi
Zane na motar ya dogara ne akan simintin silinda daga simintin aluminum, da kuma silinda mai rufi da Nikasil. Rufin Nikasil shine haɗin silicon carbide akan matrix nickel, kuma abubuwan da ake amfani da su sun fi tsayi. A matsayin gaskiya mai ban sha'awa, ana amfani da wannan fasaha wajen ƙirƙirar motoci don motoci F1.
Silinda da tsarin su.
Shugaban Silinda an yi shi da aluminum gami. An kuma ƙara tagwayen camshafts ɗin sarka da bawuloli huɗu a kowace silinda. Musamman ma, kai yana amfani da ƙirar giciye don ƙarin ƙarfi da inganci.
Ka'idar aikinsa ita ce, iskar da ake shigar da ita tana shiga dakin konewa daga gefe guda, kuma iskar gas na fitar da iskar gas daga daya. Ana daidaita share bawul ta hanyar gyare-gyare na hydraulic tappets. Saboda wannan, amo a lokacin aiki na engine M52B25 ba shi da wani babban mita. Hakanan yana kawar da buƙatar gyare-gyaren bawul na yau da kullun.
Tsarin Silinda da nau'in piston
An tsara ƙirar naúrar ta hanyar da silinda ke nunawa ga mai sanyaya kewayawa daga kowane bangare. Bugu da kari, injin M52B25 yana da manyan bearings guda bakwai da madaidaitan simintin ƙarfe na crankshaft wanda ke jujjuyawa a cikin rabe-raben gidaje masu maye gurbin manyan bearings.
Sauran fasalulluka na ƙira sun haɗa da yin amfani da sandunan haɗin ƙarfe na jabu tare da bege masu maye gurbin waɗanda aka raba a gefen crankshaft da manyan bushings kusa da fil ɗin piston. Pistons ɗin da aka shigar suna da zobe sau uku tare da zobba na sama guda biyu waɗanda ke tsaftace mai, kuma ana gyara fistocin da da'ira.
Aikin tuƙi
Injin BMW M52 B25 sun ji daɗin sake dubawar masu amfani. Sun ƙididdige su a matsayin abin dogaro da tattalin arziki. Koyaya, yayin aiwatar da amfani, wasu matsalolin sun taso, galibi suna haɗuwa da aiki na yau da kullun.
Waɗannan sun haɗa da gazawar sassa na tsarin taimako na rukunin wutar lantarki. Wannan tsarin sanyaya ne - ciki har da famfo na ruwa, da kuma radiator ko tankin faɗaɗa.
A gefe guda, an ƙididdige sassan ciki a matsayin masu ƙarfi na musamman. Waɗannan sun haɗa da bawuloli, sarƙoƙi, mai tushe, sanduna masu haɗawa da hatimi. Sun yi aiki a hankali sama da shekaru 200. km. nisan miloli.
Yin la'akari da duk abubuwan da ke da alaƙa da amfani da injin M52B25, muna iya cewa rukunin wutar lantarki ne mai nasara. Misalai masu kyau har yanzu suna nan akan kasuwa na biyu. Koyaya, kafin siyan kowane ɗayansu, ya zama dole don bincika yanayin fasaha a hankali.
