BMW M52TUB20, M52TUB25, M52TUB28 dienjini
Letoto la M52 ke lienjineri tsa peterole tsa BMW tse nang le tlhophiso ea in-line ea li-cylinders tse 6 le li-camshaft tse peli (DOHC).
Li ile tsa hlahisoa ho tloha ka 1994 ho ea ho 2000, empa ka 1998 ho ne ho e-na le "ntlafatso ea theknoloji" (ntlafatso ea theknoloji), eo tsamaiso ea bobeli ea VANOS e ileng ea hlahisoa ho mehlala e teng, e laolang nako ea li-valve tsa ho qeta (mokhoa oa ho fana ka khase e 'meli). Lethathamong la lienjineri tsa Ward tse 10 tse ntle ka ho fetisisa tsa 1997, 1998,1999, 2000 le 52, MXNUMX e ne e hlaha khafetsa mme ha ea ka ea tela maemo a bona.
Lienjineri tsa letoto la M52 li ile tsa fumana aluminium cylinder block, ho fapana le M50, e entsoeng ka tšepe e entsoeng ka tšepe. Amerika Leboea, likoloi li ne li ntse li rekisoa ka lienjineri tsena ka bolokong ba tšepe e entsoeng ka tšepe. Moeli o ka holimo oa lebelo ke 6000 rpm, 'me molumo o moholo ka ho fetisisa ke 2.8 lilithara.
Ha re bua ka ntlafatso ea tekheniki ea 1998, ho na le lintlafatso tse 'ne tse kholo:
- Sistimi ea nako ea valve ea Vanos, e tla tšohloa ka botlalo hamorao;
- Taolo ea elektronike;
- Valve ea Kekello ea Geometry ea boholo bo habeli (DISA);
- Li-cylinder liner tse hlophisitsoeng bocha.
M52TUB20
Ena ke M52B20 e fetotsoeng, eo, ka lebaka la lintlafatso tse amohetsoeng, joalo ka tse ling tse peli, e nang le ts'ebetso e eketsehileng ho li-revs tse tlase (torque e phahameng ke 700 rpm tlase). The cylinder bore ke 80mm, piston stroke ke 66mm, 'me compression ke 11:1. Buka ea 1991 cu. cm, matla 150 hp ka 5900 rpm - ho tsoela pele ha meloko ka litšobotsi tsena hoa hlokomeleha. Leha ho le joalo, torque ke 190 N * m, joalo ka M52V20, empa ka 3500 rpm.
E sebelisoa likoloing:
- BMW E36 / 7 Z3 2.0i
- 1998-2001 BMW 320i/320Ci (E46 body)
- 1998-2001 BMW 520i (E39 body)
M52TUB25
Piston stroke ke 75 mm, bophara ba silindara ke 84 mm. Mohlala oa pele oa B25 2.5-litha e fetang matla a eona a pele - 168 hp. ka lebelo la 5500 rpm. Phetolelo e fetotsoeng, e nang le litšobotsi tse tšoanang tsa matla, e hlahisa 245 N * m e tšoanang ho 3500 rpm, ha B25 e fihlile ho bona ka 4500 rpm.
E sebelisoa likoloing:
- 1998-2000 E46323i, 323ci, 325i
- 1998-2000 E39523 XNUMXi
- 1998-2000 E36/7Z3 2.3i
M52TUB28
Phallo ea enjene ke lilithara tse 2.8, piston stroke ke 84 mm, bophara ba silinda ke 84 mm, crankshaft e na le stroke e eketsehileng ha e bapisoa le B25. Compression ratio 10.2, matla 198 hp ka 5500 rpm, torque - 280 N * m / 3500 rpm.
Mathata le mathata a mofuta ona oa ICE hangata a tšoana le M52B25. Ka holimo lethathamong, o na le mocheso o feteletseng, oo hangata o lebisang ho se sebetse ha mochine oa ho aba khase. Tharollo ea ho chesa haholo hangata ke ho hloekisa radiator, ho hlahloba pompo, thermostat, sekoahelo sa radiator. Bothata ba bobeli ke tšebeliso ea oli ho feta mokhoa o tloaelehileng. Ho BMW, sena, ha e le hantle, ke bothata bo tloaelehileng, bo amanang le mehele ea piston e sa keneng. Ha ho se na nts'etsopele marakong a li-cylinders, mehele e ka nkeloa sebaka feela 'me oli e ke ke ea siea ho feta kamoo ho laetsoeng. Li-hydraulic lifters lienjineng tsena li "rata" ho coke, e leng se lebisang ho foseng.
E sebelisoa likoloing:
- 1995-1999 E36328 328i, XNUMXis
- 1995-1998 E39528 XNUMXi
- 1995-1998 E38728 728i, XNUMXiL
- 1997-1998 E36/7Z3 2.8
Tsamaiso ea VANOS e amehile haholo ka ts'ebetso ea enjene 'me ha ho e-ba le liphetoho tse sa tsitsang, ts'ebetso e sa tsitsang ka kakaretso kapa ho theoha ha matla, e senya haholo. Ho e rarolla, o hloka ho ba le sesebelisoa sa ho lokisa tsamaiso.
Li-sensor tse sa tšepahaleng tsa crankshaft le camshaft position hangata li etsa hore enjene e se ke ea qala, le hoja ka ntle ntho e 'ngoe le e' ngoe e le hantle. Thermostat e atisa ho lutla, 'me ka kakaretso mohloli o tlase ho feta oa M50.
Har'a melemo, ho ka hlokomeloa hore lienjineri tsena tse tharo ha li amehe haholo ka boleng ba peterole. Hangata ha ho khothalletsoe ho li lokisa, hammoho le ho reka bakeng sa ho fapanyetsana, kaha li se li tsofetse. Leha ho le joalo, bakeng sa ba phehellang takatsong ea bona, ho na le mokhoa o tiisitsoeng - ho kenya M50B25 e ngata, li-camshafts tsa S52B32 le chip tuning. Tokiso e joalo e tla phahamisa matla ho fihla ho 250 hp. Khetho e 'ngoe e totobetseng ke boring ho fihlela ho lilithara tse 3, e tsamaeang le ho rekoa ha crankshaft ea M54B30 le ho khaola piston ka 1.6 mm.
Ho kenya turbine ho enjine efe kapa efe e hlalositsoeng ke mokhoa o lekaneng oa ho eketsa matla. Mohlala, M52B28 e nang le turbine ea Garrett le setaele se setle sa processor se tla hlahisa hoo e ka bang 400 hp. ka sehlopha sa stock piston.
Mekhoa ea tokiso ea M52V25 e batla e fapane. Mona ho hlokahala ho reka, ho phaella ho mefuta e mengata ea ho noa ho tloha ho "mor'abo rōna" M50V25, hape le crankshaft e nang le lithupa tsa ho kopanya tsa M52V28, hammoho le firmware. Li-camshaft le sisteme ea ho qeta nako li betere ho beha S62 - ntle le tsona, e ke ke ea sisinyeha ha o lokisa. Kahoo, ka molumo oa lilithara tse 2, u tla fumana ho feta 200 hp.
Ho phahamisa matla ho enjene e nyane ea 2-litre, o tla hloka bore ho fihla ho lilithara tse 2.6 kapa turbine. Kaha o jeoa ke bolutu, o tla khona ho fana ka 200 hp. Turbocharged ka thuso ea turbo kit e khethehileng e tla qetella e khona ho pepeta 250 hp. ka lilithara tse 2 tsa bophahamo ba mosebetsi. Garrett kit e ka nkeloa sebaka ke Lysholm, e tla boela e fane ka keketseho ea matla ka har'a meeli e tšoanang.
| Enjene | HP/rpm | N*m/r/min | Lilemo tsa tlhahiso |
|---|---|---|---|
| M52TUB20 | 150/5900 | 190/3600 | 1998-2000 |
| M52TUB25 | 170/5500 | 245/3500 | 1998-2000 |
| M52TUB28 | 200/5500 | 280/3500 | 1998-2000 |
