N55 injini - mfundo zofunika kwambiri za makina

Injini yatsopano ya N55 inali injini yoyamba yamafuta ya BMW yokhala ndi mapasa a turbocharged yokhala ndi Valvetronics ndi jakisoni wamafuta mwachindunji. Werengani za matekinoloje a BMW ndi mafotokozedwe a N55.

Injini ya N55 - kapangidwe ka unit ndi chiyani?

Popanga mapangidwe a injini ya petulo ya N55, adaganiza zogwiritsa ntchito ma camshafts awiri apamwamba - mawonekedwe otseguka ndi lamellar - ndi crankcase ya aluminium yomwe inali pafupi ndi injini. Crankshaft imapangidwa ndi chitsulo chosungunuka ndipo mutu wa silinda umapangidwa ndi aluminiyamu. Mapangidwewo amaphatikizanso mavavu olowetsa omwe ali ndi mainchesi 32,0 mm. Kuphatikiza apo, ma valve olowera amadzazidwa ndi sodium.

N55 imagwiritsa ntchito turbocharger yamapasa. Inali ndi zomangira ziwiri zosiyana zomwe zimalozera mpweya wotulutsa mpweya ku turbine. Monga tanena kale, kuphatikiza turbocharging ndi jekeseni mwachindunji mafuta ndi Valvetronic anali watsopano kwa N55.

Momwe Valvetonic system imagwirira ntchito

Valvetronic ndi imodzi mwamaukadaulo aposachedwa omwe BMW amagwiritsa ntchito. Uku ndikukweza kwa ma valve osasinthasintha, ndipo kugwiritsa ntchito kwake kumathetsa kufunika koyika throttle.

Ukadaulo umawongolera kuchuluka kwa mpweya womwe umaperekedwa kuti uyake kugawo lagalimoto. Kuphatikizika kwa machitidwe atatuwa (turbo, jekeseni wamafuta mwachindunji ndi Valvetronic) kumapangitsa kuti pakhale mawonekedwe oyaka bwino komanso kuyankha bwino kwa injini poyerekeza ndi N54.

Kusiyanasiyana kwa BMW N55 powertrain

Injini yoyambira inali N55B30M0, yomwe idayamba kupanga mu 2009.

1. Mphamvu yake ndi 306 hp. pa 5-800 rpm;
2. Makokedwe ndi 400 Nm pa 1-200 rpm.
3. Kuyendetsa kudayikidwa pamagalimoto a BMW okhala ndi index ya 35i.

N55 injini

Mtundu watsopano wa injini ya turbocharged ndi N55. Kugawa kwakhala kukuchitika kuyambira 2010, ndipo mtundu wosinthidwa umapereka 320 hp. pa 5-800 rpm. ndi 6 Nm ya makokedwe pa 000-450 rpm. Wopanga adagwiritsa ntchito mumitundu yokhala ndi index 1i ndi 300i.

Zithunzi za N55B30O0 ndi N55HP

Kugulitsa kwa N55B30O0 kudayamba mu 2011. Izi zosiyanasiyana ndi analogi N55, ndi magawo luso ndi motere:

• mphamvu 326 hp pa 5-800 rpm;
• 450 Nm ya makokedwe pa 1-300 rpm.

Injini idayikidwa pamitundu yokhala ndi index ya 35i.

Njira ina, yomwe idayamba kupanga mu 2011, ndi N55HP. Lili ndi zotsatirazi:

• mphamvu 340 hp pa 5-800 rpm. ndi 6 Nm ya makokedwe pa 000-450 rpm. (kupitilira 1Nm).

Idagwiritsidwa ntchito mumitundu ya BMW yokhala ndi index ya 35i.

Chigawochi chimapezekanso mu mtundu wamasewera (injini ya S55 yokhala ndi 500 hp). Ndikoyenera kutchula kuti mtundu wamphamvu kwambiri wa M4 GTS unagwiritsa ntchito jakisoni wamadzi.

Kusiyana kwa mapangidwe pakati pa BMW N54 ndi N55

Ponena za N55, munthu sangalephere kutchula omwe adatsogolera, i.e. gawo N54. Pali zofanana zambiri pakati pa zitsanzo, monga zomwe zatchulidwa kale, kupatulapo crankshaft yachitsulo, yomwe imakhala yopepuka 3 kg kuposa yomwe imagwiritsidwa ntchito pa N54.

Komanso, injini N55 ntchito turbocharger mmodzi, osati awiri monga N54B30. Kuphatikiza apo, mu N54, masilindala atatu aliwonse anali ndi udindo pa turbocharger imodzi. Komanso, mu N3, masilindala amayang'anira imodzi mwa nyongolotsi ziwiri zomwe zimayendetsa chinthuchi. Chifukwa cha izi, mapangidwe a turbocharger ndi opepuka kwambiri mpaka 55 kg poyerekeza ndi mtundu wakale wa unit.

BMW ntchito injini. Ndi mavuto otani omwe amabwera mukamagwiritsa ntchito?

Kugwiritsa ntchito injini yatsopano ya BMW N55 kungayambitse mavuto. Chimodzi mwazofala kwambiri ndikuwonjezera mafuta. Izi makamaka chifukwa cha crankcase ventilation valve. Chifukwa chake, ndikofunikira kuyang'ana pafupipafupi zaukadaulo wagawoli.

Nthawi zina palinso mavuto ndi kuyambitsa galimoto. Choyambitsa chake nthawi zambiri chimakhala njira zonyamulira ma hydraulic. Mukayang'ana luso la gawolo, gwiritsani ntchito mafuta a injini apamwamba kwambiri.

Kodi muyenera kudziwa chiyani za ntchito ya unit?

Muyeneranso kukumbukira kusintha majekeseni anu amafuta pafupipafupi. Ayenera kugwira ntchito pafupifupi 80 km popanda vuto. Ngati nthawi yosinthira iwonedwa, kugwira ntchito kwawo sikungabweretse mavuto okhudzana ndi kugwedezeka kwakukulu kwa injini.

Mwatsoka, N55 akadali ndi vuto m'malo zosasangalatsa ndi mkulu kuthamanga mafuta mpope.

Mumadziwa kale tsatanetsatane wamitundu yamtundu wa BMW. Injini ya N55, ngakhale pali zolakwika zina, imatha kufotokozedwa ngati yodalirika komanso yolimba. Kusamalira nthawi zonse komanso kusamala kwa mauthenga kudzakuthandizani kuti mugwiritse ntchito kwa nthawi yaitali.

Chithunzi. chachikulu: Michael Sheehan kudzera pa Flickr, CC BY 2.0