Enjene ea M52B20 - litšobotsi tse tsoang ho BMW!

Enjene ea M52B20 ha e so tlohe mabenkele a tlhahiso ho tloha ka 2000. E ile ea nkeloa sebaka ke mohlala oa M54. Sehlopha se seholo se ile sa ntlafatsoa ka liphetoho tse tharo. Ha lilemo li ntse li rekisoa, enjene e boetse e ntlafalitsoe ka makhetlo a 'maloa. Re u tlisetsa litaba tsa bohlokoa mabapi le drive ena!

Enjene ea M52B20 - data ea tekheniki

Semela seo lienjineri tsa M52B20 li ileng tsa tsoa ho sona e ne e le semela sa Bavaria Plant Group, sa BMW, se sebetsang ho tloha 1992 mme se le Munich. Joalokaha ho boletsoe pejana, mochine oa motlakase o ile oa hlahisoa ho tloha ka 1994 ho ea ho 2000. 

M52B20 ke enjene ea peterole ea li-cylinder tse tšeletseng e nang le li-valve tse 'ne ka silindara ka har'a sistimi ea DOHC. Ka nako e ts'oanang, bophara ba piston ke 80 mm, 'me stroke ke 66 mm. Ka lehlakoreng le leng, kakaretso ea mosebetsi ke 1991 cc.

Enjene ena ea 2.0-liter ka tlhaho e lakatsehang ea li-stroke tse 'ne e na le sekhahla sa compression sa 11: 1 mme e hlahisa 148 hp. Ho e sebelisa, sebelisa oli ea 0W-30, 0W-40, 5W-30 kapa 5W-40 'me u e fetole lik'hilomithara tse ling le tse ling tse 10-12. km kapa likhoeli tse ling le tse ling tse 6.5. Tanka ea lintho e na le matla a lilithara tse XNUMX.

Mehlala ea likoloi tseo enjene e kentsoeng ho tsona

Enjene ea M52B20 e tsamaisitse letoto la boraro la E36 hammoho le letoto la bohlano la E39. Baenjiniere ba BMW le bona ba sebelisitse kopano ena likoloing tsa E46 ho tloha bofelong ba lilemo tsa bo-90, 'me enjene e boetse e hlaha ho E38 7 Series le E36/E37 Z3.

Moralo oa koloi

Enjene ea 52-liter inline six-cylinder ke ea letoto la MX. Ka lebaka lena, ho na le lintho tse ngata tse tšoanang ka moralo pakeng tsa mohlala ona le mefuta e fapaneng ea M52B24, M52B25, M52B28 le S52B32. Sebaka sa M52B20 se nkile sebaka sa mohlala oa M50B20.

Baqapi ba BMW ba nkile qeto ea ho sebelisa boloko ba aluminium cylinder. Thepa ena e ne e boetse e sebelisetsoa ho etsa hlooho ea DOHC ea li-valve tse 32. Ha ho bapisoa le mefuta e fapaneng ea M50B20, ho boetse ho sebelisoa li-piston tse ncha le lithupa tse hokelang tse bolelele ba 145 mm. 

Thepa ea enjene e boetse e kenyelletsa sistimi ea nako ea li-valve VANOS feela ka camshaft ea ho kenya, hammoho le mokhoa o bonolo oa ho kenya, o entsoeng ka polasetiki. Enjene e boetse e na le liente tsa mafura tsa 154cc.

Mokhoa oa ho ntlafatsa ho hanyetsa ha li-cylinder liners?

Tabeng ea M52B20, ho ile ha sebelisoa lera le eketsehileng la Nikasil ho li-cylinder liners. Ho roala ho entsoe hantle ka lera la electrophoretically lipophilic la nickel le silicon carbide. Tšebeliso ea eona e ile ea fella ka ho tšoarella ho hoholo ha likarolo tseo e neng e sebelisoa ho tsona, ho bapisoa le likarolo tsa tšepe kapa chromium.

Litharollo tse ncha ka 1998 - moralo oa baesekele o ile oa ntlafatsoa joang?

Lilemo tse 'nè ka mor'a hore motlakase o rekisoe, BMW e ile ea etsa qeto ea ho nka mehato e meng ho ntlafatsa moralo. Li-liner tsa tšepe tse entsoeng ka tšepe li ne li kenyelelitsoe leboteng la cylinder ea aluminium. Ho phaella moo, lithupa tse kopanyang, li-piston le tsamaiso ea ho pholile li tsosolositsoe ka ho feletseng.

Ho boetse ho eketsoa sistimi ea Double-VANOS, mokhoa o fapaneng oa ho ja ha DISA le 'mele oa elektroniki oa throttle. Phahamiso ea li-valve e ne e le 9,0 / 9,0 mm, 'me motlakase o ntlafalitsoeng o ne o bitsoa M52TUB20. Ka 2000, e ile ea nkeloa sebaka ke mohlala oa letoto la M54 - M2,2B54 unit e nang le boholo ba lilithara tse 22.

Ts'ebetso le mathata a tloaelehileng haholo

Mathata a tloaelehileng ke radiator le ho lutla ha tanka ea katoloso. Basebelisi ba likoloi tse nang le M52B20 le bona ba tletleba ka pompo ea metsi ea tšohanyetso le ho se sebetse hantle, hangata ho bakoang ke valve ea taolo e fosahetseng. Ho boetse ho na le mathata a sekoaelo sa li-valve le ho lutla ha oli, hammoho le li-valve tse robehileng tse robehileng.

Seo u lokelang ho se sheba ha u khetha enjene ea M52B20?

Ke habohlokoa ho hlokomela mona hore li-engines tsa M52B20 ke li-unit tsa khale - ea ho qetela e fetile lilemo tse 20. Ka lebaka lena, mohlomong, e mong le e mong oa bona o na le mileage e phahameng. Ntlha ea bohlokoa ka nako e joalo ke ho hlahloba ka botlalo le ho khetholla likarolo tse tsofetseng ka ho fetisisa. 

Ntho ea bohlokoa ka ho fetisisa ke boemo bo botle ba tsamaiso ea tšehetso ea enjene. Ena ke sistimi e pholileng e nang le pompo ea metsi, radiator le tanka ea katoloso. Likarolo tsena ke tsona tse ka hlolehang habonolo. Ka hona, pele u reka baesekele, u lokela ho hlahloba tšebeletso ea bona.

Ka lehlakoreng le leng, likarolo tse ka hare tse kang li-valve, ketane, lithupa tse kopanyang, li-crank le litiiso li ka sebetsa ntle le mathata esita le ho feta lik'hilomithara tse 200 tsa ho khanna. km. Ka ho fana ka tekanyetso e itseng bakeng sa tokiso ea pele le ho tlisa yuniti ho boemo bo nepahetseng ba tekheniki, enjene ea BMW M52B20 e tla u lefa ka mosebetsi o motle - ho sa tsotellehe lilemo tsa eona.