M54B25 2.5L injini ku BMW - mfundo zofunika kwambiri mu malo amodzi

Magalimoto okhala ndi injini ya M54B25 akadalipo m'misewu yaku Poland. Iyi ndi injini yopambana, yomwe idavoteledwa ngati gawo lazachuma lomwe limapereka magwiridwe antchito abwino. Timapereka chidziwitso chofunikira kwambiri pamikhalidwe yaukadaulo, njira zamapangidwe komanso kulephera kwazinthu za BMW.

M54B25 injini - deta luso

Model M54B25 - 2.5-lita mafuta wagawo - ndendende 2494 cm3. Linapangidwa mu mzere wachisanu ndi chimodzi. Injini yokhala ndi mikwingwirima inayi imayimira banja la M54. Anapangidwa kuchokera 2000 mpaka 2006 pa Bavaria BMW chomera ku Munich.

Chidacho chili ndi mainchesi 84,0 mm ndi sitiroko ya 75,00 mm. Kuphatikizika kwadzina ndi 10,5: 1, mphamvu yayikulu ya unit ndi 189 hp. pa 6000 rpm, makokedwe pachimake - 246 Nm.

Ndikoyeneranso kutchula zomwe zizindikiro za mayunitsi amatanthawuza. M54 amatanthauza banja la injini, chizindikiro B kwa injini ya petulo, ndi 25 ku mphamvu yake yeniyeni.

Ndi makina ati omwe adayikidwa M54B25?

Chipangizocho chinagwiritsidwa ntchito kuyambira 2000 mpaka 2006. BMW injini anaikidwa pa magalimoto monga:

• BMW Z3 2.5i E36/7 (2000-2002);
• BMW 325i, 325xi, 325Ci (E46) (2000-2006 gg.);
• BMW 325ti (E46/5) (2000-2004 gg.);
• BMW 525i (E39) (2000-2004);
• BMW 525i, 525xi (E60/E61) (2003-2005 gg.);
• BMW X3 2.5i (E83) (2003–2006);
• BMW Z4 2.5i (E85) (2002-2005).

Mapangidwe a galimoto

Injini ya M54B25 idakhazikitsidwa pazitsulo zotayira zotayidwa ndi aluminiyamu komanso zomangira zachitsulo. Mutu wa silinda, womwe umapangidwanso ndi aluminiyamu, uli ndi ma camshaft awiri a DOHC oyendetsedwa ndi unyolo komanso ma valve anayi pa silinda, pa ma valve 24 okwana.

Opanga zida zamagetsi adaganizanso zopangira zida zowongolera za Siemens MS 43 ndi Vanos dual variable valve time for the intake and exhaust camshafts. Dzina lonse la dongosololi ndi BMW variable valve timing system. Zonsezi zimathandizidwa ndi makina osagwiritsa ntchito makina amagetsi komanso kuchulukitsa kwa DISA kutalika.

Pankhani ya injini ya M54 B25, njira yoyatsira yosagawika yokhala ndi ma coil poyatsira idagwiritsidwanso ntchito. Aliyense wa iwo amapangidwa padera pa silinda iliyonse ndi thermostat, ntchito yomwe imayendetsedwa ndi zamagetsi.

Zomangamanga za block

Chigawochi chili ndi masilinda, chilichonse chomwe chimakhala ndi choziziritsa chozungulira. Crankshaft yachitsulo yokhazikika imazungulira m'mabere akuluakulu osinthika okhala ndi nyumba yogawanika. Tiyeneranso kukumbukira kuti M54B25 ili ndi mayendedwe asanu ndi awiri.

Chochititsa chidwi china ndi chakuti ndodo zolumikizira zitsulo zopangira zimagwiritsa ntchito zitsulo zogawanika zosinthika kumbali ya crankshaft, komanso tchire lolimba pomwe piston ili. Ma pistoni pawokha ndi mapangidwe a mphete zitatu okhala ndi mphete ziwiri zapamwamba komanso mphete imodzi yapansi yomwe imapukuta mafuta. Zikhomo za pistoni, kumbali inayo, zimagwira malo awo pogwiritsa ntchito ma circlips.

chivundikiro cha silinda

Kwa mutu wa silinda wa M54B25, zinthu zomwe zimapangidwa ndizotsimikizika. Aluminiyamu alloy imapereka magawo abwino ozizirira bwino. Kuwonjezera apo, zimachokera ku mapangidwe a mayiko omwe amapereka mphamvu zambiri komanso chuma. Ndikuthokoza kwa iye kuti mpweya wolowa umalowa m'chipindacho kuchokera kumbali imodzi ndikutuluka kuchokera kwina.

Njira zapadera zopangira zida zathandiziranso kuchepetsa phokoso la injini. Izi zimagwiranso ntchito pakuchotsa ma valve, komwe kumayendetsedwa ndi zonyamula ma hydraulic odzisintha okha. Zimathetsanso kufunika kosintha ma valve nthawi zonse.

Kuyendetsa galimoto - zoyenera kuyang'ana?

Pankhani ya injini ya BMW M54B25, mavuto omwe amapezeka kwambiri ndi pampu yamadzi yolakwika ndi thermostat yolakwika. Ogwiritsanso amalozeranso valavu ya DISA yowonongeka ndi zisindikizo zosweka za VANOS. Chophimba cha valve ndi chivundikiro cha pampu ya mafuta nthawi zambiri chimalephera.

Kodi injini ya M54B25 ndiyofunika kuyamikira?

Pa nthawi yake, M54B25 idalandira ndemanga zabwino kwambiri. Nthawi zonse adakhala woyamba pamndandanda wamainjini abwino kwambiri padziko lonse lapansi wa Ward magazine. Ndi kukonza nthawi zonse komanso kuyankha kwanthawi yake kuzinthu zomwe zimalephera nthawi zambiri, injini ya M54B25 idzagwira ntchito mosalephera kwa makilomita masauzande.