BMW M52B28 cav
Txheem
Lub cav tau tsim thawj zaug hauv lub Peb Hlis 1995 ntawm BMW 3-series, nrog rau E36 Performance index.
Tom qab ntawd, lub zog hluav taws xob tau teeb tsa rau lwm tus qauv BMW: Z3, 3-series E46 thiab 3-series E38. Qhov kawg ntawm kev tsim cov tshuab no rov qab mus rau xyoo 2001. Nyob rau hauv tag nrho, 1 xyaw tau nruab rau hauv BMW tsheb.
M52B28 cav hloov kho
- Thawj lub cav tau cim M52B28 thiab tau tsim los ntawm 1995 thiab 2000. Nws yog lub hauv paus unit. Lub compression piv yog 10.2, lub zog yog 193 hp. ntawm tus nqi torque ntawm 280 Nm ntawm 3950 rpm.
- M52TUB28 yog tus tswv cuab thib ob ntawm lub cav BMW no. Qhov sib txawv tseem ceeb yog lub xub ntiag ntawm Double-VANOS system ntawm kev noj thiab tso pa tawm. Tus nqi ntawm qhov sib piv compression thiab lub zog tau hloov pauv, thiab muaj li 10.2 thiab 193 hp. Raws li, ntawm 5500 rpm. Tus nqi torque yog 280 Nm ntawm 3500 rpm.
Technical yam ntxwv thiab tsim nta ntawm lub cav
Lub cav muaj ib tug square geometry. Tag nrho qhov ntev yog 84 x 84 mm. Lub tog raj kheej txoj kab uas hla yog tib yam li nyob rau hauv yav dhau los tiam ntawm cav ntawm M52 kab. Qhov siab compression ntawm lub piston yog 31,82 hli. Lub tog raj kheej taub hau yog qiv los ntawm lub cav M50B25TU. Cov qauv ntawm cov nozzles siv nyob rau hauv lub cav M52V28 yog 250cc. Nyob rau hauv thaum ntxov 1998, ib tug tshiab kev hloov kho ntawm lub cav no nkag mus rau ntau lawm, uas yog cim M52TUB28.
Nws qhov sib txawv yog kev siv lub tes tsho cam khwb cia hlau, thiab es tsis txhob ntawm vanos system, ob chav vanos mechanism tau nruab rau hauv nws. Camshaft tsis: ntev 244/228 hli, qhov siab 9 hli. Nws muaj cov piston thiab txuas cov pas nrig. Lub DISA hloov pauv geometry tso pa tawm manifold kuj tau ua haujlwm dua.
Thawj thawj zaug hauv kab M52, lub tshuab hluav taws xob hluav taws xob thiab cua txias tau teeb tsa. Txhua lub tsheb uas cov motors tau nruab tau txais qhov ntsuas i28. Nyob rau hauv 2000, lub cav M54B30 tau nkag mus rau ntau lawm, uas yog tus successor rau M52B28, uas nyob rau hauv lem twb txiav lawm nyob rau hauv 2001.
Lub cav no muaj ib lub vanos nrog ib txheej nikasil.
Tsis zoo li M52B25 cav chav tsev, uas nws thaiv yog ua los ntawm cam khwb cia hlau, nyob rau hauv lub M52B28 engine, lub luj ntawm lub flywheel, raws li zoo raws li lub pem hauv ntej pulley, tsim los dampen torsional vibrations, yog ntau tsawg. Qhov no ua rau lub fact tias lub dynamic kev ua tau zoo ntawm lub tsheb tag nrho yog txhim kho. Qhov luaj li cas ntawm li qub yog 6 hli, nyob rau hauv lawv tsim muaj ib tug cone-hom caij nplooj ntoos hlav. Lub tog raj kheej thaiv ntawm lub cav M52V28 yog ua los ntawm txhuas. Lub thaiv kev txhim kho cov qauv yog ua los ntawm cov khoom tshwj xeeb thiab cov hlua khi. Qhov kev tsim no tsis muaj monolithic rigidity, qhov no tso cai rau koj los them rau ntau yam deformations thaum lub cev muaj zog.
Cov bolts tsim los rau fastening lub yokes nyob rau hauv lub M52B28 txhuas cav thaiv yog ntev tshaj li cov bolts siv nyob rau hauv lub cam khwb cia hlau cylinder blocks. Cov roj nozzles ntawm lub cav, uas nws qhov ntim yog 2.8 litres, muaj qhov chaw zoo dua li nws cov thawj coj.
Lawv cov lus qhia yog coj mus rau hauv qab ntawm lub pistons nyob rau hauv txhua txoj hauj lwm ntawm lub crankshaft. Nws yog tsim nyog sau cia tias lub hauv ntej thiab nram qab crankshaft npog yog nyob rau hauv gaskets ntawm "Hlau pob" hom. Tsis tas li ntawd, crankshaft roj ntsaws ruaj ruaj, tsis siv cov hlau springs. Qhov no ua rau nws muaj peev xwm txo tau qhov hnav ntawm qhov chaw txhuam.
Lub piston system ntawm lub cav M52B28 yog qhov zoo heev. Piv nrog rau lub cav me me, B28 sab hauv combustion cav crankshaft yog ntev-stroke, yog li ntawd, cov pistons yog siv nrog txo compression qhov siab. Hauv qab ntawm lub pistons muaj lub tiaj tus.
Teeb meem thaj chaw ntawm M52B28 cav
- Thawj qhov yuav tsum nco ntsoov yog overheating. Cov cav los ntawm M52 series, nrog rau kev teeb tsa lub cav nrog M50 Performance index, uas tau tsim ua ntej me ntsis, feem ntau overheat. Txhawm rau tshem tawm qhov teeb meem no, nws yog ib qho tsim nyog yuav tsum tau ntxuav lub tshuab hluav taws xob ib ntus, nrog rau tshem tawm cov cua ntawm qhov cua txias, xyuas lub twj tso kua mis, ntsuas cua sov thiab lub tshuab hluav taws xob.
- Qhov thib ob qhov teeb meem yog cov roj burner. Nws tshwm sim vim qhov tseeb tias cov piston rings raug coj mus ntxiv. Nyob rau hauv cov ntaub ntawv ntawm kev puas tsuaj rau cov phab ntsa ntawm lub tog raj kheej, nws yog tsim nyog los ua raws li cov txheej txheem ntawm lub tes tsho. Yog tias lawv tsis zoo, ces koj tuaj yeem yooj yim hla kev hloov ntawm piston rings. Nws tseem yog ib qho tsim nyog los xyuas qhov xwm txheej ntawm lub valve, uas yog lub luag haujlwm rau kev ua pa ntawm cov pa roj carbon monoxide.
- Qhov teeb meem ntawm misfiring tshwm sim thaum lub hydraulic lifters coked. Qhov no ua rau qhov tseeb tias qhov kev ua tau zoo ntawm lub tog raj kheej poob thiab lub tshuab hluav taws xob tswj hluav taws xob tig tawm. Txoj kev daws teeb meem yog kev yuav khoom tshiab hydraulic lifters.
- Lub teeb roj teeb rau ntawm lub ntsuas hluav taws xob. Yog vim li cas rau qhov no tuaj yeem yog lub khob roj lossis roj twj tso kua mis.
- Nrog kev khiav tom qab 150 txhiab km. tej zaum yuav muaj teeb meem nrog vanos. Cov tsos mob ntawm nws qhov kev tawm ntawm kev sawv yog: qhov tsos ntawm rattling, poob ntawm lub zog thiab ua luam dej ceev. Txhawm rau kho qhov teeb meem no, koj yuav tsum yuav cov khoom siv kho rau M52 xyaw.
Kuj tseem muaj teeb meem nrog kev ua tsis tiav ntawm crankshaft thiab camshaft txoj hauj lwm sensors. Thaum tshem lub taub hau lub tog raj kheej, nws yuav nyuaj rau txoj hlua txuas. Lub ntsuas kub tsis zoo heev thiab feem ntau pib xau.
Cov roj cav tsim nyog siv rau hauv lub cav no: 0W-30, 0W-40, 5W-30, 5W-40. Kwv yees lub neej ntawm lub cav, nrog kev ua haujlwm zoo, thiab kev siv cov roj nplua nyeem zoo thiab cov roj, tuaj yeem ua tau ntau tshaj 500 txhiab km.
Tuning engine installation BMW M52B28
Ib qho ntawm cov kev xaiv yooj yim tshaj plaws yog mus yuav ib tus neeg sau khoom zoo, uas tau teeb tsa ntawm M50B52 ICE. Tom qab ntawd, muab lub cav nrog cov cua txias kom tsawg thiab cov camshafts los ntawm SD52B32, thiab tom qab ntawd nqa tawm kev kho qhov dav dav ntawm lub cav installation. Tom qab cov kev ua no, qhov nruab nrab, txog 240-250 horsepower yog tau. Lub zog no yuav txaus rau kev caij tsheb zoo nyob hauv nroog thiab dhau mus. Qhov zoo ntawm txoj kev no yog tus nqi qis.
Lwm txoj kev xaiv yog nce lub ntim ntawm lub tog raj kheej mus rau 3 litres. Txhawm rau ua qhov no, koj yuav tsum yuav lub crankshaft los ntawm M54B30. Tom qab ntawd, tus qauv piston raug txo los ntawm 1.6 hli. Tag nrho lwm cov ntsiab lus tseem tsis tau kov. Tsis tas li ntawd, txhawm rau txhim kho cov yam ntxwv ntawm lub zog, nws raug nquahu kom yuav thiab nruab ib qho M50B25 intake manifold.
Qhov kev xaiv yooj yim tshaj plaws yog rau nruab Garrerr GT35 turbocharger. Nws installation yog nqa tawm nyob rau hauv Tshuag piston system M52B28. Tus nqi fais fab tuaj yeem ncav cuag 400 horsepower. Txhawm rau ua qhov no, nws yog qhov yuav tsum tau kho lub Megasquirt, ntawm qhov siab ntawm 0,7 bar.
Qhov kev ntseeg ntawm lub cav installation tsis txo qis, txawm tias qhov loj ntawm lub zog nce. Tus nqi siab uas tus qauv piston M52B28 tuaj yeem tiv taus yog 1 bar. Qhov no qhia tau hais tias yog tias koj tig lub cav mus txog 450-500 hp, ces koj yuav tsum tau yuav ib tug forged piston mechanism, compression piv uas yog 8.5.
Cov kiv cua compressor tuaj yeem yuav cov khoom siv nrov ESS compressor raws li Lysholm. Nrog rau cov kev teeb tsa no, lub cav M52B28 tsim ntau dua 300 hp. nrog haiv neeg piston system.
Cov yam ntxwv ntawm lub cav M52V28
| Nta | Qhov Ntsuas |
|---|---|
| Cav Performance index | M52 |
| Lub sijhawm tso tawm | 1995-2001 |
| Lub tog raj kheej thaiv | Aluminium |
| Fais fab system hom | txhaj tshuaj |
| Kev npaj lub tog raj kheej | inline |
| Cov nab npawb ntawm cov thooj voos kheej kheej | 6 |
| Li qub rau ib lub tog raj kheej | 4 |
| Piston stroke ntev, mm | 84 |
| Lub tog raj kheej txoj kab uas hla, mm | 84 |
| Compression piv | 10.2 |
| Cav volume, cc | 2793 |
| Cov yam ntxwv ntawm lub zog, hp / rpm | 193/5300 |
| 193/5500 (TU) | |
| Torque, Nm/rpm | 280/3950 |
| 280/3500 (TU) | |
| Roj hom | Petrol (AI-95) |
| Ib puag ncig cov chav kawm | Euro 2-3 |
| Cav hnyav, kg | ~ 170 |
| ~ 180 (UA) | |
| Roj noj, l / 100 km (rau E36 328i) | |
| - nroog voj voog | 11.6 |
| - lub voj voog ntxiv hauv nroog | 7.0 |
| - lub voj voog sib xyaw | 8.5 |
| Cav roj noj, g/1000 km | rau 1000 |
| Roj siv | 0W-30 |
| 0W-40 | |
| 5W-30 | |
| 5W-40 | |
| Cov roj muaj ntau npaum li cas hauv lub cav, l | 6.5 |
| Regulated roj hloov mileage, txhiab km | 7-10 |
| Ua haujlwm kub, deg. | ~ 95 |
