N52 injini kubva kuBMW - maitiro eiyo yakaiswa unit, kusanganisira muE90, E60 uye X5

Iyo in-line yechitanhatu ine standard jekiseni iri kuwira zvishoma nezvishoma mukukanganwa. Izvi zvine chekuita nekushanduka-shanduka kwezvinodiwa nevatengi veBMW, pamwe nekuunzwa kwezviyero zvinotadzisa kubuda kwemhepo, izvo zvinomanikidza vagadziri kushandisa dzimwe mhinduro. Iyo N52 injini ndeimwe yemhando yekupedzisira inoonekwa seyakajairwa BMW zvikamu. Chii chakakosha kuziva nezvazvo?

N52 injini - ruzivo rwekutanga

Iyo unit yakagadzirwa kubva 2004 kusvika 2015. Chinangwa chepurojekiti yaive yekutsiva iyo M54 vhezheni. Iyo yekutanga yakawira pamuenzaniso weE90 3-series, pamwe chete neE65-series 6. Chinhu chinokosha chaiva chokuti N52 yaiva BMW's premiere product kana inosvika kumvura yakanyoroveswa zvikamu. 

Inoshandisawo chivakwa chakaumbwa - magnesium uye aluminium. Injini yakahwina mibairo yakawanda, kusanganisira nzvimbo paWard's Top 10 runyorwa muna 2006 na2007. Sezvineiwo, pakanga pasina M vhezheni yeinjini iyi.

Kusviba kweinjini kwaiva muna 2007. Panguva iyoyo, BMW yakafunga kutora mudhudhudhu zvishoma nezvishoma kubva pamusika. Zviyero zvinodzivirirwa zvekupisa zvine simba guru pane izvi - kunyanya munyika dzakaita seUSA, Canada, Australia neMalaysia. Iyo unit yakaitsiva yaive N20 turbocharged injini. Kupera kwekugadzirwa kweN52 kwakaitika muna 2015.

Iko kusanganiswa kwe magnesium nealuminium - ndeapi mhedzisiro yakawanikwa?

Sezvambotaurwa, kuvakwa kwacho kunobva pachivharo chakagadzirwa ne magnesium-aluminium composite. Kubatana kwakadaro kwakashandiswa nekuda kwezvinhu zvekutanga zvezvakarehwa zvinhu. 

Iine uremu hwakaderera, zvisinei, inokonzerwa nekuora uye inogona kukuvadzwa nekupisa kwakanyanya. Ndokusaka yakasanganiswa nealuminium, inopikisa zvakanyanya kune izvi zvinhu. Iyo crankcase imba yaive yakagadzirwa nealloy, ine aluminium yakavhara kunze. 

Dhizaini mhinduro muN52 mudhudhudhu

Vagadziri vakasarudza kushandisa yemagetsi throttle control uye variable valve nguva - iyo system inozivikanwa sembiri-VANOS. Mamwe mayuniti ane simba aive zvakare akashongedzerwa ane-nhanho-nhatu-kusiyana-kureba yekutora yakawanda - DISA uye Valvetronic system.

Alusil yaishandiswa cylinder liners. Iyo inonzi hypereutectic aluminium-silicon alloy. Iyo isiri-porous chimiro chechinhu chinochengeta mafuta uye inzvimbo yakanaka yekutakura. Alusil yakatsiva yakashandiswa kare Nikasil, iyo yakabvisawo matambudziko ekuora pakushandisa peturu nesarufa. 

Vagadziri vakashandisawo hollow camshaft kuderedza uremu, pamwe nepombi yemagetsi yemvura uye pombi yemafuta inochinja. Iyo N52 injini yakaiswa neSiemens MSV70 DME control system.

N52B25 zvikamu 

Musiyano wekutanga waive ne 2,5 litres (2 cc). Yakaiswa mumotokari dzakagadzirirwa kumusika weEurope, pamwe chete neAmerica neCanada. Kugadzirwa kwakatora kubva 497 kusvika 2005. Boka reN52B25 rinosanganisira marudzi ane anotevera paramita:

• ine 130 kW (174 hp) pa230 Nm (2005-2008). Kuiswa muBMW E90 323i, E60/E61 523i uye E85 Z4 2.5i;
• ine 150 kW (201 hp) pa250 Nm (2007-2011). Kuiswa muBMW 323i, 523i, Z4 sDrive23i;
• ine 160 kW (215 hp) pa250 Nm (2004-2013). Kuiswa muBMW E83 X3 2.5si, xDrive25i, E60/E61 525i, 525xi, E90/E91/E92/E93 352i, 325xi uye E85 Z4 2.5si.

N52B30 zvikamu

Musiyano uyu unokwana marita 3,0 (2 cc). Bore rehumburumbira yega yega yaive 996 mm, sitiroko yaive 85 mm, uye iyo compression ratio yaive 88: 10,7. Kusiyana kwesimba kwakakonzerwa nezvikamu zvakashandiswa, semuenzaniso. kutora manifolds uye control software. Boka reN52B30 rinosanganisira marudzi ane anotevera paramita:

• ine 163 kW (215 hp) pa270 Nm kana 280 Nm (2006-2011). Kuiswa paBMW 7 E90/E92/E93 325i, 325xi, E60/E61 525i, 525xi, E85 Z4 3.0i, E82/E88 125i, E60/E61 528i, 528xi uye E84 X1i
• ine 170 kW (228 hp) pa270 Nm (2007-2013). Kuiswa muBMW E90/E91/E92/E93 328i, 328xi uye E82/E88 128i;
• ine 180 kW (241 hp) pa310 Nm (2008-2011). Kuiswa muBMW F10 528i;
• ine 190 kW (255 hp) pa300 Nm (2010-2011). Kuiswa paBMW E63/E64 630i, E90/E92/E93 330i, 330xi, E65/E66 730i, E60/E61 530i, 530xi, F01 730i, E89 Z4 sDrive30i, E84 Xi X1 sDrive28i, E87i X130, E25 X3, E28 sDriveXNUMXi XXNUMX, EXNUMX XXNUMX Drive
• ine 195 kW (261 hp) pa315 Nm (2005-2009). Kuiswa muBMW E85/E86 Z4 3.0si uye E87 130i;
• ine 200 kW (268 hp) pa315 Nm (2006-2010). Kuiswa paE83 X3 3.0si, E70 X5 3.0si, xDrive30i, E63/E64 630i uye E90/E92/E93 330i, 330xi.

Kukanganisa kweinjini n52

Chikwata ichi chinonzi chakabudirira. Izvi hazvishandi kune matanhatu-cylinder modhi akaiswa kune 328i uye 525i, ayo akayeukwa nekuda kwekudzokororwa kwedhizaini kukanganisa kunokonzeresa kupfupi wedunhu re crankcase ventilation valve hita. 

Kune rimwe divi, matambudziko akajairwa anosanganisira kutadza kweiyo VANOS system, hydraulic valve actuators, kana kutadza kwepombi yemvura kana kukuvadzwa kweiyo thermostat. Vashandisi vakateererawo kune inovuza mavharuvhu anovhara, oiri sefa dzimba, kana kusaenzana idling.