Injin N57 - duk abin da kuke buƙatar sani
Abubuwa
Injin N57 na dangin injunan dizal ne da ke da injin turbocharger da tsarin layin dogo na gama gari. An fara samarwa a cikin 2008 kuma ya ƙare a cikin 2015. Mun gabatar da mafi muhimmanci bayanai game da shi.
Injin N57 - bayanan fasaha
Injin diesel yana amfani da tsarin sarrafa bawul na DOHC. Ƙungiyar wutar lantarki mai silinda shida tana da silinda 6 tare da pistons 4 a kowace. Injin Silinda ya ɗauki 90 mm, bugun piston 84 mm a matsawa 16.5. Matsakaicin madaidaicin injin shine 2993 cc.
Injin ya cinye lita 6,4 na mai a kowane kilomita 100 a cikin birni, 5,4 a kowace kilomita 100 a hadewar zagayowar da kuma lita 4,9 a kowace kilomita 100 a kan babbar hanya. Naúrar tana buƙatar mai 5W-30 ko 5W-40 don yin aiki da kyau.
Motoci daga BMW
Tun farkon samar da injunan BMW, an ƙirƙiri nau'ikan nau'ikan wutar lantarki iri shida. Dukansu suna da gundura da bugun jini na 84 x 90 mm, ƙaura na 2993 cc da rabon matsawa na 3:16,5. Irin waɗannan nau'ikan sun kasance na dangin N1:
- N57D30UL tare da 150 kW (204 hp) a 3750 rpm. da 430 Nm a 1750-2500 rpm. Siga na biyu yana da fitarwa na 155 kW (211 hp) a 4000 rpm. da 450 Nm a 1750-2500 rpm;
- N57D30OL 180 kW (245 hp) a 4000 rpm. da 520 Nm a 1750-3000 rpm. ko 540 Nm a 1750-3000 rpm;
- N57D30OL 190 kW (258 hp) a 4000 rpm. da 560 Nm a 2000-2750 rpm;
- N57D30TOP220 kW (299 hp) a 4400 rpm. ko 225 kW (306 hp) a 4400 rpm. da 600 Nm a 1500-2500 rpm;
- N57D30TOP(TÜ) 230 kW (313 hp) a 4400 rpm. da 630 Nm a 1500-2500 rpm;
- N57D30S1 280 kW (381 hp) a 4400 rpm. 740 nm a 2000-3000 rpm.
Sigar wasanni N57D30S1
Har ila yau, akwai nau'in nau'in caja uku na wasanni, inda na farko yana da juzu'in juzu'in injin turbine kuma yana aiki sosai a ƙananan saurin injin, na biyu a matsakaicin gudu, yana ƙaruwa, kuma na uku ya haifar da gajeren kololuwar iko da juzu'i a mafi girma. kaya - a matakin 740 Nm da 280 kW (381 hp).
Tsarin tuƙi
N57 injin layi ne mai sanyaya ruwa mai girman 30°. Yana amfani da camshafts na sama biyu - injin dizal. Tushen injin an yi shi da aluminium mai nauyi da ɗorewa. Babban ƙwanƙwasa ƙwanƙwasa an yi su ne da gami da cermet.
Har ila yau, yana da daraja kwatanta ƙirar injin Silinda shugaban. Ya kasu kashi biyu, inda tashoshi na shaye da shaye-shaye, da kuma bawuloli, suke a kasa. saman yana da farantin tushe wanda camshafts ke gudana akan. Haka kuma shugaban yana sanye da tashar sake zagayowar iskar gas. Siffar siffa ta N57 ita ce, silinda suna da busassun liyu masu busassun zafi waɗanda ke da alaƙa da shingen Silinda.
Camshafts, man fetur da turbocharger
Wani muhimmin abu na aikin injin shi ne camshaft na shaye-shaye, wanda ke gudana ta hanyar guda ɗaya na bawul ɗin ci. Abubuwan da aka jera suna da alhakin sarrafa abubuwan sha da shaye-shaye na silinda. Bi da bi, don daidai aiki na shan camshaft, da drive sarkar a kan flywheel gefe, tensioned da na'ura mai aiki da karfin ruwa sarkar pullers, yana da alhakin.
A cikin injin N57, ana allurar mai a matsa lamba 1800 zuwa mashaya 2000 kai tsaye zuwa cikin silinda ta hanyar Bosch Common Rail tsarin. Bambance-bambancen naúrar wutar lantarki na iya samun nau'ikan turbochargers masu shayar da iskar gas - madaidaicin lissafi ko haɗe tare da na'ura mai kwakwalwa, ɗaya ko biyu.
Aikin naúrar tuƙi - matsalolin da aka fuskanta
Yayin aikin babur, rashin aiki da ke da alaƙa da vortex shock absorbers na iya faruwa. Sakamakon rashin aiki, injin ya fara aiki ba daidai ba, da kuma kurakuran tsarin sigina.
Wata matsala kuma ita ce ta haifar da yawan hayaniya. Sautunan da ba a so sakamakon karyewar crankshaft shiru ne. Matsalar ta bayyana a gudu na kusan 100 XNUMX. km kuma ana buƙatar maye gurbin sarkar lokaci.
Hakanan ya kamata ku kula da amfani da daidaitaccen nau'in mai. Godiya ga wannan, sauran tsarin, kamar injin turbin, yakamata suyi aiki na akalla sa'o'i 200 ba tare da matsala ba. kilomita.
Injin N57 wanda ya dace don daidaitawa
Ɗaya daga cikin hanyoyin da aka fi sani don ƙara ƙarfin injin shine haɓaka turbocharger. Ta ƙara mafi girma juzu'i ko nau'in nau'in haɗaka zuwa injin, ana iya inganta sigogin isar da iskar sha da gaske. Koyaya, wannan za'a danganta shi da matakan konewar mai.
Masu amfani da N57 kuma sun yanke shawarar kunna ECU. Sake sanya raka'a ba shi da tsada kuma yana inganta aiki. Wani bayani daga wannan rukuni shine maye gurbin ba kawai ECU ba, har ma da akwatunan kunnawa. Hakanan za'a iya amfani da kunnawa a kan jirgin sama. Abun da ke da ƙananan taro zai inganta aikin naúrar wutar lantarki ta hanyar ƙara saurin injin.
Sauran hanyoyin da za a ƙara yuwuwar injin sun haɗa da haɓaka fam ɗin mai, ta yin amfani da manyan allurai masu gudana, shigar da kan silinda mai gogewa, kayan shayarwa ko mai sauya yanayin motsa jiki, shaye-shaye da cam ɗin hanya.
