N52 injini ku BMW - makhalidwe a unit anaika, kuphatikizapo E90, E60 ndi X5

Mzere wachisanu ndi chimodzi wokhala ndi jakisoni wokhazikika ukugwa pang'onopang'ono kuiwalika. Izi zikugwirizana ndi kusinthika kwa zofunikira za makasitomala a BMW, komanso kukhazikitsidwa kwa miyezo yoletsa kutulutsa mpweya, zomwe zimakakamiza opanga kugwiritsa ntchito njira zina. Injini ya N52 ndi imodzi mwazinthu zomaliza zomwe zimawonedwa ngati mayunitsi amtundu wa BMW. Ndi chiyani chomwe chili choyenera kudziwa za izo?

N52 injini - zambiri zofunika

Chipangizocho chinapangidwa kuchokera ku 2004 mpaka 2015. Cholinga cha polojekitiyi chinali kusintha mtundu wa M54. Chiyambicho chinagwera pa chitsanzo cha E90 3-mfululizo, komanso mndandanda wa E65 6. Mfundo yofunika kwambiri inali yakuti N52 inali mankhwala oyambirira a BMW pankhani ya zigawo zowonongeka ndi madzi. 

Amagwiritsanso ntchito zomangamanga - magnesium ndi aluminium. Injiniyi yapambana mphoto zambiri, kuphatikizapo malo omwe ali pamndandanda wa Ward's Top 10 mu 2006 ndi 2007. Chosangalatsa ndichakuti panalibe mtundu wa M wa injini iyi.

Kuwala kwa injini kunali mu 2007. Panthawiyo, BMW idaganiza zochotsa njinga yamoto pang'onopang'ono pamsika. Miyezo yoletsa kuyaka idakhudza kwambiri izi - makamaka m'maiko monga USA, Canada, Australia ndi Malaysia. Chigawo chomwe chinalowa m'malo mwake chinali injini ya N20 turbocharged. Kutha kwa kupanga N52 kunachitika mu 2015.

Kuphatikiza kwa magnesium ndi aluminiyamu - ndi zotsatira zotani zomwe zapezeka?

Monga tanenera kale, ntchito yomangayi imachokera ku chipika chopangidwa ndi magnesium-aluminium composite. Kulumikizana kotereku kunagwiritsidwa ntchito chifukwa cha zinthu zoyamba zomwe zatchulidwa. 

Ili ndi kulemera kochepa, komabe, imatha kuwonongeka ndipo imatha kuwonongeka ndi kutentha kwakukulu. Ichi ndichifukwa chake idaphatikizidwa ndi aluminiyamu, yomwe imatsutsana kwambiri ndi izi. Nyumba ya crankcase inali yopangidwa ndi aloyi, ndi aluminiyumu yophimba kunja. 

Mayankho apangidwe mu njinga yamoto ya N52

Okonza adaganiza zogwiritsa ntchito mphamvu zamagetsi zamagetsi ndi nthawi yosinthika ya valve - dongosololi limadziwika kuti double-VANOS. Magawo amphamvu kwambiri analinso ndi magawo atatu omwe amadya mosiyanasiyana - DISA ndi Valvetronic system.

Alusil ankagwiritsidwa ntchito popanga ma silinda. Ndi hypereutectic aluminium-silicon alloy. Mapangidwe osakhala a porous azinthu amakhalabe ndi mafuta ndipo ndi abwino kunyamula pamwamba. Alusil adalowa m'malo mwa Nikasil yomwe idagwiritsidwa ntchito kale, yomwe idachotsanso zovuta za dzimbiri pogwiritsa ntchito mafuta ndi sulfure. 

Okonzawo adagwiritsanso ntchito camshaft yopanda kanthu kuti achepetse kulemera, komanso pampu yamadzi yamagetsi ndi pampu yamafuta osinthika. Injini ya N52 ili ndi makina owongolera a Nokia MSV70 DME.

Zithunzi za N52B25 

Mtundu woyamba unali ndi mphamvu ya malita 2,5 (2 cc). Iwo anaikidwa magalimoto anafuna kuti msika European, komanso American ndi Canada. Kupanga kunayambira 497 mpaka 2005. Gulu la N52B25 limaphatikizapo mitundu yokhala ndi magawo awa:

• ndi 130 kW (174 hp) pa 230 Nm (2005-2008). Kuyika mu BMW E90 323i, E60/E61 523i ndi E85 Z4 2.5i;
• ndi 150 kW (201 hp) pa 250 Nm (2007-2011). Kuyika mu BMW 323i, 523i, Z4 sDrive23i;
• ndi 160 kW (215 hp) pa 250 Nm (2004-2013). Kuyika mu BMW E83 X3 2.5si, xDrive25i, E60/E61 525i, 525xi, E90/E91/E92/E93 352i, 325xi ndi E85 Z4 2.5si.

Zithunzi za N52B30

Mtunduwu uli ndi mphamvu ya malita 3,0 (2 cc). Kubowola kwa silinda iliyonse kunali 996 mm, sitiroko inali 85 mm, ndipo chiŵerengero cha psinjika chinali 88: 10,7. Kusiyana kwa mphamvu kunakhudzidwa ndi zigawo zomwe zimagwiritsidwa ntchito, mwachitsanzo. manifolds ndi mapulogalamu owongolera. Gulu la N52B30 limaphatikizapo mitundu yokhala ndi magawo awa:

• ndi 163 kW (215 hp) pa 270 Nm kapena 280 Nm (2006-2011). Kuyika pa BMW 7 E90/E92/E93 325i, 325xi, E60/E61 525i, 525xi, E85 Z4 3.0i, E82/E88 125i, E60/E61 528i, 528xi xDrive ndi E84 X1;
• ndi 170 kW (228 hp) pa 270 Nm (2007-2013). Kuyika mu BMW E90/E91/E92/E93 328i, 328xi ndi E82/E88 128i;
• ndi 180 kW (241 hp) pa 310 Nm (2008-2011). Kuyika mu BMW F10 528i;
• ndi 190 kW (255 hp) pa 300 Nm (2010-2011). Kuyika pa BMW E63/E64 630i, E90/E92/E93 330i, 330xi, E65/E66 730i, E60/E61 530i, 530xi, F01 730i, E89 Z4 sDrive30i, X84i X1i, E28 X87i X130, E25 sDrive3i X28i XXNUMXi ndi EXNUMX XXNUMXi XXNUMXi Drive
• ndi 195 kW (261 hp) pa 315 Nm (2005-2009). Kuyika mu BMW E85/E86 Z4 3.0si ndi E87 130i;
• ndi 200 kW (268 hp) pa 315 Nm (2006-2010). Kuyika pa E83 X3 3.0si, E70 X5 3.0si, xDrive30i, E63/E64 630i ndi E90/E92/E93 330i, 330xi.

Kuwonongeka kwa injini n52

Chigawochi chimaonedwa kuti ndi chopambana. Izi sizikugwira ntchito ku zitsanzo za silinda zisanu ndi imodzi zomwe zimayikidwa ku 328i ndi 525i, zomwe zakumbukiridwa chifukwa cha zolakwika zobwerezabwereza zomwe zimapangitsa kuti pakhale kufupi kwa chowotcha chotenthetsera mpweya wa crankcase. 

Kumbali ina, mavuto okhazikika akuphatikizapo kulephera kwa dongosolo la VANOS, ma hydraulic valve actuators, kapena kulephera kwa mpope wamadzi kapena kuwonongeka kwa thermostat. Ogwiritsanso ntchito adayang'aniranso zovundikira zotayikira, zosefera mafuta, kapena kusagwira bwino ntchito.