Injini ya N57 - zonse zomwe muyenera kudziwa

Injini ya N57 ndi ya banja la injini za dizilo zomwe zili ndi turbocharger ndi njanji wamba. Kupanga kudayamba mu 2008 ndikutha mu 2015. Timapereka chidziwitso chofunikira kwambiri chokhudza iye.

Injini ya N57 - data yaukadaulo

Injini ya dizilo imagwiritsa ntchito makina owongolera ma valve a DOHC. Chigawo champhamvu cha silinda sikisi chili ndi masilinda 6 okhala ndi pistoni 4 iliyonse. Silinda ya injini inali ndi 90 mm, piston sitiroko 84 mm pa 16.5 compression. Kusamuka kwenikweni kwa injini ndi 2993 cc. 

injini ankadya malita 6,4 a mafuta pa 100 Km mu mzinda, malita 5,4 pa 100 Km mu mkombero ophatikizana ndi malita 4,9 pa 100 Km pa msewu waukulu. Chigawochi chimafuna mafuta a 5W-30 kapena 5W-40 kuti agwire bwino ntchito. 

Mitundu yamagalimoto kuchokera ku BMW

Kuyambira pachiyambi cha kupanga injini za BMW, mitundu isanu ndi umodzi yamagetsi yapangidwa. Onsewa anali ndi vuto ndi sitiroko ya 84 x 90 mm, kusamuka kwa 2993 cc ndi chiŵerengero cha 3: 16,5. Mitundu yotsatirayi inali ya banja la N1:

• N57D30UL yokhala ndi 150 kW (204 hp) pa 3750 rpm. ndi 430 Nm pa 1750-2500 rpm. Mtundu wachiwiri uli ndi mphamvu ya 155 kW (211 hp) pa 4000 rpm. ndi 450 Nm pa 1750-2500 rpm;
• N57D30OL 180 kW (245 hp) pa 4000 rpm. ndi 520 Nm pa 1750-3000 rpm. kapena 540 Nm pa 1750-3000 rpm;
• N57D30OL 190 kW (258 hp) pa 4000 rpm. ndi 560 Nm pa 2000-2750 rpm;
• N57D30TOP220 kW (299 hp) pa 4400 rpm. kapena 225 kW (306 hp) pa 4400 rpm. ndi 600 Nm pa 1500-2500 rpm;
• N57D30TOP(TÜ) 230 kW (313 hp) pa 4400 rpm. ndi 630 Nm pa 1500-2500 rpm;
• N57D30S1 280 kW (381 hp) pa 4400 rpm. 740 Nm pa 2000-3000 rpm.

Mbiri ya N57D30S1

Panalinso mitundu itatu yamasewera ya supercharger, pomwe yoyamba inali ndi geometry yosinthika ya turbine ndipo imagwira ntchito bwino pama liwiro otsika a injini, yachiwiri pa liwiro lapakati, torque yowonjezereka, ndipo yachitatu idapanga nsonga zazifupi zamphamvu ndi torque pamwamba. katundu - pa mlingo wa 740 Nm ndi 280 kW (381 HP).

Mapangidwe a galimoto

N57 ndi 30 ° supercharged, madzi utakhazikika inline injini. Imagwiritsa ntchito ma camshaft awiri apamwamba - injini ya dizilo. Chotchinga cha injini chimapangidwa ndi aluminiyamu yopepuka komanso yolimba. Zipolopolo zazikulu za crankshaft zimapangidwa ndi cermet alloy.

Ndikoyeneranso kufotokoza kapangidwe ka mutu wa silinda ya injini. Imagawidwa m'magawo awiri, pomwe njira zotulutsa mpweya komanso zolowera, komanso ma valve, zili pansi. Pamwambapa pali mbale yoyambira yomwe ma camshaft amayendetsa. Mutu ulinso ndi njira yotulutsa mpweya wotulutsa mpweya. Chodziwika bwino cha N57 ndikuti masilindala amakhala ndi zomangira zowuma zomwe zimamangiriridwa ku cylinder block.

Camshafts, mafuta ndi turbocharger

Chinthu chofunika kwambiri pa ntchito ya injini ndi camshaft yotulutsa mpweya, yomwe imayendetsedwa ndi chinthu chimodzi cha ma valve olowa. Magawo omwe atchulidwawa ali ndi udindo wowongolera ma valve olowa ndi otulutsa ma silinda. Komanso, kuti camshaft igwire bwino ntchito, unyolo woyendetsa mbali ya flywheel, wokongoletsedwa ndi ma hydraulic chain pullers, ndiwotsogolera.

Mu injini ya N57, mafuta amalowetsedwa mokakamiza 1800 mpaka 2000 bar mwachindunji mu masilinda kudzera pa Bosch Common Rail system. Zosiyana siyana zagawo lamagetsi zitha kukhala ndi ma turbocharger osiyanasiyana otulutsa mpweya - geometry yosinthika kapena kuphatikiza ndi intercooler, imodzi kapena ziwiri.

Kugwira ntchito kwa unit drive - mavuto omwe amakumana nawo

Pogwiritsa ntchito njinga yamoto, zovuta zomwe zimagwirizanitsidwa ndi vortex shock absorbers zikhoza kuchitika. Chifukwa cha kulephera, injini imayamba kuyenda mosagwirizana, komanso zolakwika za dongosolo lazizindikiro. 

Vuto lina ndi m'badwo wa phokoso lalikulu. Phokoso losafunidwa ndi zotsatira za silencer yosweka ya crankshaft. Vutoli likuwoneka pakuyenda pafupifupi 100 XNUMX. km ndi unyolo wanthawi uyenera kusinthidwa.

Muyeneranso kusamala kugwiritsa ntchito mtundu woyenera wa mafuta. Chifukwa cha izi, machitidwe onse, monga turbine, ayenera kuthamanga kwa maola osachepera 200 popanda mavuto. makilomita.

N57 injini yoyenera ikukonzekera

Imodzi mwa njira zofala zowonjezerera mphamvu ya injini ndikukweza turbocharger. Powonjezera mtundu wokulirapo kapena mtundu wosakanizidwa ku injini, magawo operekera mpweya amatha kusintha kwambiri. Komabe, izi zikugwirizana ndi kuchuluka kwa mafuta oyaka. 

Ogwiritsa ntchito a N57 asankhanso kuyimba ECU. Kugawanso mayunitsi ndikotsika mtengo ndipo kumapangitsa kuti ntchito zitheke. Njira ina yochokera m'gulu ili ndikusintha osati ECU yokha, komanso mabokosi owongolera. Kukonza kungagwirenso ntchito pa flywheel. Chigawo chokhala ndi misa yocheperako chidzawongolera magwiridwe antchito amagetsi pakuwonjezera liwiro la injini.

Njira zina zowonjezerera mphamvu ya injini ndi monga kukweza pampu yamafuta, kugwiritsa ntchito majekeseni othamanga kwambiri, kukhazikitsa mutu wa silinda wopukutidwa, zida zolowera kapena chosinthira chamasewera, utsi ndi kamera yamsewu.