Injini ye-N57 - konke odinga ukukwazi

Injini ye-N57 ingeyomndeni wezinjini zikadizili ezifakwe i-turbocharger kanye nohlelo lwesitimela olujwayelekile. Ukukhiqizwa kwaqala ngo-2008 kwaze kwaphela ngo-2015. Sethula ulwazi olubaluleke kakhulu ngaye.

Injini ye-N57 - idatha yobuchwepheshe

Injini kadizili isebenzisa uhlelo lokulawula amavalvu e-DOHC. Iyunithi yamandla engamasilinda ayisithupha inamasilinda angu-6 namapiston angu-4 ngalinye. Isilinda senjini sino-90 mm, i-piston stroke esingu-84 mm ngokucindezelwa okungu-16.5. Ukushintshwa kwenjini okuqondile ngu-2993 cc. 

Le njini idla amalitha kaphethiloli angu-6,4 ngebanga lika-100 km edolobheni, idla amalitha angu-5,4 ngebanga lika-100 km uma isihlangene kanye no-4,9 wamalitha ngebanga lika-100 km emgwaqweni omkhulu. Iyunithi ibidinga uwoyela ongu-5W-30 noma i-5W-40 ukuze isebenze kahle. 

Izinguqulo zezimoto ezivela kwaBMW

Kusukela ekuqaleni kokukhiqizwa kwezinjini ze-BMW, ​​izinhlobo eziyisithupha zamayunithi zamandla zidalwe. Bonke babene-bore and stroke engu-84 x 90 mm, ukufuduka okungu-2993 cc kanye nesilinganiso sokucindezela esingu-3:16,5. Izinhlobo ezilandelayo bekungezomndeni wakwa-N1:

• I-N57D30UL enamandla angu-150 kW (204 hp) ku-3750 rpm. futhi 430 Nm at 1750-2500 rpm. Inguqulo yesibili inamandla angu-155 kW (211 hp) ku-4000 rpm. futhi 450 Nm at 1750-2500 rpm;
• I-N57D30OL 180 kW (245 hp) ku-4000 rpm. futhi 520 Nm at 1750-3000 rpm. noma 540 Nm at 1750-3000 rpm;
• I-N57D30OL 190 kW (258 hp) ku-4000 rpm. futhi 560 Nm at 2000-2750 rpm;
• I-N57D30TOP220 kW (299 hp) ku-4400 rpm. noma 225 kW (306 hp) at 4400 rpm. futhi 600 Nm at 1500-2500 rpm;
• I-N57D30TOP(TÜ) 230 kW (313 hp) ku-4400 rpm. futhi 630 Nm at 1500-2500 rpm;
• I-N57D30S1 280 kW (381 hp) ku-4400 rpm. 740 Nm at 2000-3000 rpm.

Inguqulo yezemidlalo N57D30S1

Bekukhona nohlobo lwe-sporty olunama-supercharger amathathu, lapho eyokuqala ine-geometry ye-turbine eguquguqukayo futhi isebenza kahle kakhulu ngesivinini esiphansi senjini, eyesibili ngesivinini esimaphakathi, i-torque ekhulayo, kanti eyesithathu ikhiqize iziqongo ezimfishane zamandla netorque phezulu kakhulu. umthwalo - ezingeni lika-740 Nm no-280 kW (381 hp).

Idizayini yeDrayivu

I-N57 iyinjini ekulayini engu-30° eshajwe kakhulu, epholile ngamanzi. Isebenzisa ama-camshaft amabili aphezulu - injini ye-diesel. Ibhulokhi yenjini yenziwe nge-aluminium engasindi futhi eqinile. Amagobolondo amakhulu athwala ama-crankshaft enziwe nge-cermet alloy.

Kuyafaneleka futhi ukuchaza ukwakheka kwekhanda le-cylinder yenjini. Ihlukaniswe yaba izingxenye ezimbili, lapho iziteshi zokukhipha kanye nokungena, kanye nama-valve, atholakala phansi. Phezulu kunepuleti lesisekelo lapho ama-camshaft asebenza khona. Ikhanda libuye lifakwe umzila wokubuyisela igesi exhaust. Isici sesici se-N57 ukuthi amasilinda anama-liner omile ahlanganiswe ngokufudumele ku-cylinder block.

Ama-camshafts, uphethiloli kanye ne-turbocharger

Isici esibalulekile sokusebenza kwenjini yi-exhaust camshaft, eqhutshwa isici esisodwa se-valve yokungenisa. Izingxenye ezisohlwini zinesibopho sokulawula ama-valve okungena kanye nokukhipha amasilinda. Ngokulandelayo, ukuze kusebenze kahle i-camshaft yokungenisa, iketango lokushayela ohlangothini lwe-flywheel, eliqiniswe ama-hydraulic chain pullers, linesibopho.

Enjinini ye-N57, uphethiloli ujovwa ngengcindezi ye-1800 kuya ku-2000 bar ngqo kumasilinda ngohlelo lwe-Bosch Common Rail. Izinhlobonhlobo ezihlukene zeyunithi yamandla zingase zibe nama-turbocharger e-exhaust gas - i-geometry eguquguqukayo noma ehlanganiswe ne-intercooler, eyodwa noma ezimbili.

Ukusebenza kweyunithi yokushayela - izinkinga okuhlangatshezwane nazo

Ngesikhathi sokusebenza kwesithuthuthu, ukungasebenzi kahle okuhambisana ne-vortex shock absorbers kungenzeka. Ngenxa yokungasebenzi kahle, injini iqala ukusebenza ngokungalingani, kanye namaphutha esistimu yesignali. 

Enye inkinga ukudalwa komsindo omkhulu. Imisindo engafunwa iwumphumela wesithulisi se-crankshaft esiphukile. Inkinga ivela esikhathini esingaba ngu-100 XNUMX. km kanye neketango lesikhathi lidinga ukushintshwa.

Kufanele futhi unake ukusebenzisa uhlobo olulungile lwamafutha. Ngenxa yalokhu, lonke uhlelo, njenge-turbine, kufanele lusebenze okungenani amahora angu-200 ngaphandle kwezinkinga. amakhilomitha.

Injini engu-N57 ilungele ukushunwa

Enye yezindlela ezivame kakhulu zokwandisa amandla enjini ukuthuthukisa i-turbocharger. Ngokungeza inguqulo enkulu noma inguqulo ehlanganisiwe enjinini, imingcele yokulethwa komoya wokungenisa ingathuthukiswa kakhulu. Nokho, lokhu kuzohlotshaniswa namazinga aphezulu okushiswa kukaphethiloli. 

Abasebenzisi be-N57 baphinde banquma ukushuna i-ECU. Ukwabela kabusha amayunithi akubizi futhi kuthuthukisa ukusebenza. Esinye isisombululo esivela kulesi sigaba ukushintshwa kwe-ECU hhayi kuphela, kodwa futhi namabhokisi okulungisa. Ukushuna kungasebenza naku-flywheel. Ingxenye enesisindo esincane izothuthukisa ukusebenza kweyunithi yamandla ngokwandisa isivinini senjini.

Ezinye izindlela zokwandisa amandla enjini zihlanganisa ukuthuthukisa iphampu kaphethiloli, ukusebenzisa izijovo ezigeleza ngamandla, ukufaka ikhanda lesilinda eliphucuziwe, ikhithi yokungena noma i-sports catalytic converter, i-exhaust nekhamera yomgwaqo.