Injini ye-N52 evela ku-BMW - izici zeyunithi efakiwe, kufaka phakathi i-E90, E60 ne-X5

I-in-line yesithupha enomjovo ojwayelekile iya ngokuya ishabalala kancane kancane. Lokhu kuhlobene nokuvela kwezidingo zamakhasimende akwa-BMW, ​​kanye nokwethulwa kwezindinganiso ezinqandayo zokukhipha umoya, okuphoqa abaklami ukuthi basebenzise ezinye izixazululo. Injini ye-N52 ingenye yezinhlobo zokugcina ezithathwa njengamayunithi ajwayelekile e-BMW. Yini okufanele ukwazi ngayo?

Injini ye-N52 - ulwazi oluyisisekelo

Lolu phiko lwakhiqizwa kusukela ngo-2004 kuya ku-2015. Umgomo wephrojekthi bekuwukuthatha indawo yenguqulo ye-M54. I-debut yawela kumodeli ye-E90 3-series, kanye nochungechunge lwe-E65 6. Iphuzu elibalulekile laliwukuthi i-N52 yayiwumkhiqizo wokuqala we-BMW uma kuziwa kumayunithi apholile ngamanzi. 

Isebenzisa futhi ukwakhiwa okuyinhlanganisela - i-magnesium ne-aluminium. Le njini isihlomule inqwaba yezindondo okubalwa kuyo indawo ohlwini lwe-Ward's Top 10 ngo-2006 nango-2007. Kuyathakazelisa ukuthi yayingekho inguqulo engu-M yale njini.

Ukuhwalala kwenjini kwaba ngo-2007. Ngaleso sikhathi, abakwaBMW banquma ukusikhipha kancane isithuthuthu emakethe. Amazinga omlilo akhawula abe nomthelela omkhulu kulokhu - ikakhulukazi emazweni afana ne-USA, Canada, Australia kanye neMalaysia. Iyunithi ethathe indawo yayo kube yinjini engu-N20 ene-turbocharged. Ukuphela kokukhiqizwa kwe-N52 kwenzeka ngo-2015.

Inhlanganisela ye-magnesium ne-aluminium - yimiphi imiphumela etholakele?

Njengoba kushiwo ngaphambili, ukwakhiwa kusekelwe kubhulokhi eyenziwe ngenhlanganisela ye-magnesium-aluminium. Ukuxhumana okunjalo kusetshenziswe ngenxa yezakhiwo zokuqala zezinto ezishiwo. 

Inesisindo esiphansi, nokho, iyakwazi ukugqwala futhi ingalinyazwa amazinga okushisa aphezulu. Yingakho ihlanganiswe ne-aluminium, ekwazi ukumelana nalezi zici ngokwedlulele. Indlu ye-crankcase yenziwe nge-alloy, ne-aluminium emboze ingaphandle. 

Dizayina izixazululo esithuthuthu i-N52

Abaqambi banqume ukusebenzisa i-electronic throttle control kanye ne-variable valve timing - uhlelo lwaziwa ngokuthi i-double-VANOS. Amayunithi anamandla abengeziwe nawo ahlonyiswe ngezigaba ezintathu zobude obuguquguqukayo obuphindaphindekayo - i-DISA nesistimu ye-Valvetronic.

I-Alusil yayisetshenziselwa ama-cylinder liners. Kuyi-hypereutectic aluminium-silicon alloy. Isakhiwo esingenayo i-porous sezinto ezibonakalayo sigcina amafutha futhi iyindawo efanelekile yokuthwala. I-Alusil ithathe indawo ye-Nikasil eyayisetshenziswa ngaphambili, ephinde yaqeda izinkinga zokugqwala lapho isebenzisa uphethiloli ngesibabule. 

Abaqambi baphinde basebenzisa i-camshaft engenalutho ukuze banciphise isisindo, kanye nepompo yamanzi kagesi kanye nepompo likawoyela elishintshashintshayo. Injini ye-N52 ifakwe i-Siemens MSV70 DME control system.

Izingxenye ze-N52B25 

Okuhlukile kokuqala kwakunamandla angu-2,5 amalitha (2 cc). Ifakwe ezimotweni ezihloselwe emakethe yaseYurophu, kanye neMelika neCanada. Ukukhiqizwa kwaqala ngo-497 kwaze kwaba ngu-2005. Iqembu le-N52B25 lihlanganisa izinhlobo ezinamapharamitha alandelayo:

• amandla angu-130 kW (174 hp) ku-230 Nm (2005-2008). Ukufakwa ku-BMW E90 323i, E60/E61 523i kanye ne-E85 Z4 2.5i;
• amandla angu-150 kW (201 hp) ku-250 Nm (2007-2011). Ukufakwa ku-BMW 323i, 523i, Z4 sDrive23i;
• amandla angu-160 kW (215 hp) ku-250 Nm (2004-2013). Ukufakwa ku-BMW E83 X3 2.5si, xDrive25i, E60/E61 525i, 525xi, E90/E91/E92/E93 352i, 325xi kanye ne-E85 Z4 2.5si.

Izingxenye ze-N52B30

Lokhu okuhlukile kunamandla angu-3,0 litres (2 cc). Isigqoko sesilinda ngasinye sasingu-996 mm, ukushaywa kwakungu-85 mm, futhi isilinganiso sokucindezela sasingu-88:10,7. Umehluko emandleni wathonywa yizingxenye ezisetshenzisiwe, isib. thatha ama-nifolds kanye nesoftware yokulawula. Iqembu le-N52B30 lihlanganisa izinhlobo ezinamapharamitha alandelayo:

• amandla angu-163 kW (215 hp) ku-270 Nm noma ku-280 Nm (2006-2011). Ukufakwa ku-BMW 7 E90/E92/E93 325i, 325xi, E60/E61 525i, 525xi, E85 Z4 3.0i, E82/E88 125i, E60/E61 528i, 528xi kanye ne-E84 X1;
• amandla angu-170 kW (228 hp) ku-270 Nm (2007-2013). Ukufakwa ku-BMW E90/E91/E92/E93 328i, 328xi kanye ne-E82/E88 128i;
• amandla angu-180 kW (241 hp) ku-310 Nm (2008-2011). Ukufakwa ku-BMW F10 528i;
• amandla angu-190 kW (255 hp) ku-300 Nm (2010-2011). Ukufakwa ku-BMW E63/E64 630i, E90/E92/E93 330i, 330xi, E65/E66 730i, E60/E61 530i, 530xi, F01 730i, E89 Z4 sDrive30i, X84i X1, E28 X87 sDrive130i, E25 X3, E28 XXNUMX sDriveXNUMXi, EXNUMX XXNUMX Drive, EXNUMX, XXNUMX, EXNUMX, EXNUMX, XXNUMX, EXNUMX, XXNUMX neDrive
• amandla angu-195 kW (261 hp) ku-315 Nm (2005-2009). Ukufakwa ku-BMW E85/E86 Z4 3.0si kanye ne-E87 130i;
• amandla angu-200 kW (268 hp) ku-315 Nm (2006-2010). Ukufakwa ku-E83 X3 3.0si, E70 X5 3.0si, xDrive30i, E63/E64 630i kanye ne-E90/E92/E93 330i, 330xi.

Amaphutha enjini n52

Iyunithi ithathwa njengeyimpumelelo. Lokhu akusebenzi kumamodeli angamasilinda ayisithupha afakwe ku-328i kanye no-525i, abuyiselwe emuva ngenxa yephutha ledizayini eliphindaphindiwe eliholela ekujikelezeni okufushane kwe-heater ye-crankcase ventilation valve. 

Ngakolunye uhlangothi, izinkinga ezijwayelekile zihlanganisa ukwehluleka kwesistimu ye-VANOS, ama-valve actuator, noma ukwehluleka kwephampu yamanzi noma ukulimala kwe-thermostat. Abasebenzisi baphinde banaka amakhava amavalvu avuzayo, izindlu zokuhlunga uwoyela, noma ukungenzi lutho ngokungalingani.