N52 engine mai BMW - nā hi'ohi'ona o ka mea i ho'okomo 'ia, me ka E90, E60 a me X5

Ke hāʻule mālie nei ka laina ʻeono me ka ʻinikini maʻamau i ka poina. Pili kēia i ka hoʻomohala ʻana o nā koi o nā mea kūʻai aku BMW, a me ka hoʻokomo ʻana i nā kūlana hoʻokuʻu hoʻokuʻu palena ʻole, e koi ana i nā mea hoʻolālā e hoʻohana i nā hopena ʻē aʻe. ʻO ka mīkini N52 kekahi o nā hiʻohiʻona hope loa i manaʻo ʻia he mau ʻāpana BMW maʻamau. He aha ka pono e ʻike e pili ana iā ia?

N52 engine - ʻike kumu

Ua hana ʻia ka ʻāpana mai 2004 a 2015. ʻO ka pahuhopu o ka papahana e hoʻololi i ka mana M54. Ua hāʻule ka hoʻomaka mua ma ka E90 3-series model, a me ka E65-series 6. ʻO kahi mea koʻikoʻi ʻo ka N52 ka huahana mua loa o BMW i ka wā e pili ana i nā ʻāpana wai hoʻoluʻu. 

Hoʻohana pū ʻo ia i kahi hana composite - magnesium a me alumini. Ua lanakila ka ʻenekini i nā makana he nui, me kahi wahi ma ka papa inoa ʻo Ward's Top 10 ma 2006 a me 2007. ʻO ka mea hoihoi, ʻaʻohe mana M o kēia ʻenekini.

ʻO ka pō o ka mīkini i ka makahiki 2007. I kēlā manawa, ua hoʻoholo ʻo BMW e lawe mālie i ke kaʻa kaʻa mai ka mākeke. ʻO nā kūlana hoʻopau hoʻopau i ka hopena nui loa i kēia - ʻoi loa i nā ʻāina e like me USA, Canada, Australia a me Malaysia. ʻO ka ʻāpana i hoʻololi iā ia ʻo ka N20 turbocharged engine. ʻO ka hopena o ka hana ʻana o ka N52 i hana ʻia ma 2015.

ʻO ka hui pū ʻana o ka magnesium a me ka alumini - he aha nā hopena i loaʻa?

E like me ka mea i ʻōlelo ʻia ma mua, ua hoʻokumu ʻia ke kūkulu ʻana ma luna o kahi poloka i hana ʻia me ka magnesium-aluminum composite. Ua hoʻohana ʻia kēlā pilina ma muli o nā waiwai o ka mea mua o nā mea i ʻōlelo ʻia. 

He haʻahaʻa kona kaumaha, akā naʻe, hiki ke hoʻopōʻino ʻia e nā wela kiʻekiʻe. ʻO ia ke kumu i hui pū ʻia ai me ka alumini, ka mea kūʻē loa i kēia mau kumu. Ua hana ʻia ka hale crankcase me ka alloy, me ka alumini e uhi ana i waho. 

Hoʻolālā i nā hoʻonā i ke kaʻa kaʻa N52

Ua hoʻoholo nā mea hoʻolālā e hoʻohana i ka mana throttle uila a me ka manawa o ka valve variable - ʻike ʻia ka ʻōnaehana ʻo double-VANOS. Ua hoʻolako pū ʻia nā ʻāpana ikaika ʻoi aku me kahi ʻekolu mau pae hoʻololi-lōʻihi intake manifold - DISA a me Valvetronic system.

Ua hoʻohana ʻia ʻo Alusil no nā liner cylinder. He aluminika-silikona hypereutectic. ʻO ke ʻano porous ʻole o ka mea e mālama ai i ka ʻaila a he ʻili kūpono kūpono. Ua hoʻololi ʻo Alusil i ka Nikasil i hoʻohana mua ʻia, ka mea i hoʻopau i nā pilikia corrosion i ka wā e hoʻohana ai i ka ʻaila me ka sulfur. 

Ua hoʻohana pū nā mea hoʻolālā i kahi camshaft hollow e hōʻemi i ke kaumaha, a me ka paila wai uila a me ka ʻaila ʻaila hoʻololi. Hoʻokomo ʻia ka ʻenekini N52 me kahi ʻōnaehana mana Siemens MSV70 DME.

N52B25 pūʻulu 

He 2,5 liters (2 cc) ka mana mua. Ua hoʻokomo ʻia i nā kaʻa i manaʻo ʻia no ka mākeke ʻEulopa, a me ʻAmelika a me Kanada. Hana ʻia ka hana mai 497 a 2005. Aia ka pūʻulu N52B25 i nā ʻano like me nā ʻāpana aʻe:

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

N52B30 pūʻulu

He 3,0 liters (2 cc) kēia ʻano ʻokoʻa. ʻO ka pahu o kēlā me kēia pahu he 996 mm, ʻo ka hahau ʻana he 85 mm, a ʻo ka ratio hoʻoemi ʻana he 88:10,7. ʻO kaʻokoʻa o ka mana i hoʻopiliʻia e nā mea i hoʻohanaʻia, e.g. intake manifolds a me ka polokalamu hoʻomalu. Aia ka pūʻulu N52B30 i nā ʻano like me nā ʻāpana aʻe:

• me 163 kW (215 hp) ma 270 Nm a i ʻole 280 Nm (2006-2011). Hoʻokomo ʻia ma BMW 7 E90/E92/E93 325i, 325xi, E60/E61 525i, 525xi, E85 Z4 3.0i, E82/E88 125i, E60/E61 528i, 528xi a me E84 X1iD;
• me 170 kW (228 hp) ma 270 Nm (2007-2013). Hoʻokomo i BMW E90 / E91 / E92 / E93 328i, 328xi a me E82 / E88 128i;
• me 180 kW (241 hp) ma 310 Nm (2008-2011). Hoʻokomo ʻia ma BMW F10 528i;
• me 190 kW (255 hp) ma 300 Nm (2010-2011). Hoʻokomo ʻia ma BMW E63/E64 630i, E90/E92/E93 330i, 330xi, E65/E66 730i, E60/E61 530i, 530xi, F01 730i, E89 Z4 sDrive30i, Erive84i, Erive1i, Erive28i, Erive87i, Erive130i, Erive25i, Erive3i a me E28
• me 195 kW (261 hp) ma 315 Nm (2005-2009). Hoʻokomo ʻia ma BMW E85/E86 Z4 3.0si a me E87 130i;
• me 200 kW (268 hp) ma 315 Nm (2006-2010). Hoʻokomo ʻia ma E83 X3 3.0si, E70 X5 3.0si, xDrive30i, E63/E64 630i a me E90/E92/E93 330i, 330xi.

Nā hewa ʻenekini n52

Manaʻo ʻia ka ʻāpana he holomua. ʻAʻole pili kēia i nā hiʻohiʻona ʻeono-cylinder i hoʻopili ʻia i ka 328i a me 525i, i hoʻomanaʻo ʻia ma muli o kahi hemahema o ka hoʻolālā ʻana i hopena i kahi pōkole pōkole o ka crankcase ventilation valve heater. 

Ma ka ʻaoʻao ʻē aʻe, ʻo nā pilikia maʻamau e pili ana i ka hemahema o ka ʻōnaehana VANOS, hydraulic valve actuators, a i ʻole ka pau ʻole o ka paila wai a i ʻole ka pōʻino i ka thermostat. Hoʻolohe pū nā mea hoʻohana i nā uhi valve leaky, nā hale kānana aila, a i ʻole ka hana ʻole.