M52B25 injini ku BMW - makhalidwe luso ndi ntchito wagawo

Injini ya M52B25 idapangidwa kuyambira 1994 mpaka 2000. Mu 1998, zosintha zingapo zidapangidwa, zomwe zidasintha mawonekedwe a unit. Pambuyo kugawa M52B25 chitsanzo anamaliza, izo m'malo ndi M54 Baibulo. wagawo anasangalala kuzindikira, ndi umboni wa ichi chinali malo ake okhazikika pa mndandanda wa injini 10 yabwino magazini ovomerezeka Ward - kuyambira 1997 mpaka 2000. Kubweretsa zambiri zofunika kwambiri za M52B25!

M52B25 injini - deta luso

Kupanga kwa injini iyi kunachitika ndi wopanga waku Bavaria wa Munich Plant ku Munich. Khodi ya injini ya M52B25 idapangidwa mwanjira ya sitiroko zinayi yokhala ndi masilinda asanu ndi limodzi oyikidwa molunjika m'mphepete mwa crankcase pomwe ma pistoni onse amayendetsedwa ndi crankshaft wamba.

Kusuntha kwenikweni kwa injini yamafuta ndi 2 cm³. Dongosolo la jekeseni wamafuta linasankhidwanso, kuwombera kwa silinda iliyonse kunali 494-1-5-3-6-2 ndi chiŵerengero cha 4: 10,5. Kulemera okwana injini M1B52 ndi 25 makilogalamu. Injini ya M52B25 ilinso ndi makina amodzi a VANOS - Variable Camshaft Timing.

Ndi mitundu yanji yamagalimoto omwe adagwiritsa ntchito injini?

The 2.5 lita injini anaikidwa pa BMW 323i (E36), BMW 323ti (E36/5) ndi BMW 523i (E39/0) zitsanzo. Chigawochi chinagwiritsidwa ntchito ndi nkhawa kuyambira 1995 mpaka 2000. 

Njira yopangira ma drive unit

Mapangidwe a injiniyo amatengera chipika cha aluminium alloy cylinder block, komanso ma silinda opaka ndi Nikasil. Chophimba cha Nikasil ndi kuphatikiza kwa silicon carbide pa matrix a nickel, ndipo zinthu zomwe zimayikidwapo zimakhala zolimba. Monga chochititsa chidwi, ukadaulo uwu umagwiritsidwanso ntchito popanga ma mota a magalimoto a F1.

Cylinders ndi mapangidwe awo.

Mutu wa silinda umapangidwa ndi aluminium alloy. Ma camshaft amapasa oyendetsedwa ndi unyolo ndi ma valve anayi pa silinda adawonjezeredwanso. Makamaka, mutu umagwiritsa ntchito mapangidwe ophatikizika kuti apange mphamvu zambiri komanso kuchita bwino. 

Mfundo ya ntchito yake ndi yakuti mpweya wolowa umalowa m'chipinda choyaka moto kuchokera kumbali imodzi, ndipo mpweya wotulutsa mpweya umatuluka kuchokera kumbali inayo. Chilolezo cha vavu chimasinthidwa ndi matepi a hydraulic odzisintha okha. Chifukwa cha ichi, phokoso pa ntchito ya injini M52B25 alibe pafupipafupi mkulu. Zimathetsanso kufunika kosintha ma valve nthawi zonse.

Kukonzekera kwa silinda ndi mtundu wa pistoni 

Mapangidwe a chipangizochi amapangidwa m'njira yoti masilinda awonekere ku chozizira chozungulira kuchokera kumbali zonse. Kuphatikiza apo, injini ya M52B25 ili ndi zitsulo zazikulu zisanu ndi ziwiri ndi crankshaft yokhazikika yachitsulo yomwe imazungulira m'nyumba zogawanika zosinthika.

Mapangidwe ena amaphatikizirapo kugwiritsa ntchito ndodo zolumikizira zitsulo zopanga zokhala ndi zotengera zosinthika zomwe zimagawika kumbali ya crankshaft ndi zitsamba zolemera pafupi ndi piston. Ma pistoni oikidwa amakhala ndi mphete zitatu ndi mphete ziwiri zapamwamba zomwe zimatsuka mafuta, ndipo zikhomo za pistoni zimakhazikika ndi zozungulira.

Kuyendetsa ntchito

BMW M52 B25 injini anasangalala ndi ndemanga zabwino wosuta. Iwo adawawona ngati odalirika komanso otsika mtengo. Komabe, pakugwiritsa ntchito, zovuta zina zidayamba, zomwe nthawi zambiri zimagwirizanitsidwa ndi ntchito wamba. 

Izi zikuphatikizapo kulephera kwa zigawo za dongosolo lothandizira la mphamvu yamagetsi. Iyi ndi njira yozizira - kuphatikizapo mpope wa madzi, komanso radiator kapena thanki yowonjezera. 

Kumbali ina, ziwalo zamkati zinkaonedwa kuti ndi zamphamvu kwambiri. Izi zimaphatikizapo ma valve, maunyolo, zimayambira, ndodo zolumikizira ndi zisindikizo. Iwo anagwira ntchito mokhazikika kwa zaka zoposa 200. km. mtunda.

Poganizira mbali zonse kugwirizana ndi ntchito injini M52B25, tinganene kuti anali wopambana kwambiri mphamvu wagawo. Zitsanzo zosungidwa bwino zilipobe pamsika wachiwiri. Komabe, musanagule aliyense wa iwo, m'pofunika kufufuza mosamala chikhalidwe chake luso.