Cav BMW M50B20, M50B20TU
Txheem
BMW M50B20, M50B20TU yog cov txhim khu kev qha thiab ua neej nyob ntev ntawm German kev txhawj xeeb, uas muaj cov peev txheej loj. Lawv tuaj los hloov lub cev muaj zog ntawm M20 tsev neeg, uas tsis ua raws li cov kev cai niaj hnub no, suav nrog kev phooj ywg ib puag ncig. Thiab txawm hais tias M50 units tau ua tiav, lawv tau tsim tsuas yog 6 xyoo - los ntawm 1991 txog 1996. Tom qab ntawd lawv tsim cov cav nrog txhuas lub tog raj kheej thaiv - nrog rau qhov ntsuas M52. Lawv tau technically zoo dua, tab sis muaj peev txheej tsawg dua. Yog li M50s yog cov qub cav, tab sis kuj txhim khu kev qha.
tsis
Yam ntxwv ntawm BMW M50B20 thiab M50B20TU cav nyob rau hauv lub rooj.
| Chaw Tsim Tshuaj | Munich cog |
|---|---|
| Qhov tseeb ntim | 1.91 l |
| Lub tog raj kheej thaiv | Cam khwb cia hlau |
| Питание | Txhaj tshuaj txau |
| Hom | Hauv |
| Tus naj npawb ntawm thooj voos kheej kheej | 6 |
| Ntawm li qub | 4 ib lub tog raj kheej, 24 tag nrho |
| Piston mob stroke | 66 hli |
| Compression piv | 10.5 hauv paus version, 11 hauv TU |
| Hwj chim | 150 h.p. ntawm 6000 rpm |
| 150 hp cas ntawm 5900 rpm - hauv TU version | |
| Torque | 190 Nm ntawm 4900 rpm |
| 190 Nm ntawm 4200 rpm - hauv TU version | |
| Roj | Roj av AI-95 |
| Ib puag ncig ua raws | Euro 1 |
| Kev siv roj av | Hauv nroog - 10-11 litres ib 100 km |
| Nyob rau hauv txoj kev loj - 6.5-7 liters | |
| Cav roj ntim | 5.75 l |
| Yuav tsum muaj viscosity | 5W-30, 5W-40, 10W-40, 15W-40 |
| Muaj peev xwm noj roj | Txog li 1 l / 1000 km |
| Relubrication los ntawm | 7-10 txhiab km. |
| Cav kev pab | 400+ txhiab km. |
Muab hais tias lub cav tau tsim tsuas yog 5-6 xyoo, nws tau nruab rau ntawm ob peb tus qauv BMW xwb:
BMW 320i E36 yog qhov muag zoo tshaj plaws nrog lub cav 2-liter. Yuav luag 197 txhiab units ntawm cov tsheb zoo li no tau tsim, uas
hais txog qhov kev thov siab heev thiab kev ntseeg siab ntawm tsis yog lub tsheb xwb, tab sis kuj yog lub cav.
BMW 520i E34 yog yuav luag ib zaj dab neeg ntawm German tsheb kev lag luam, uas tau tsim los ntawm 1991 txog 1996. Nyob rau hauv tag nrho, yuav luag 397 txhiab luam tau tsim. Thiab txawm hais tias lub tsheb muaj yav dhau los tsis zoo nyob rau hauv Russia (vim cov neeg tsav tsheb), nws tseem yog ib zaj dab neeg. Tam sim no ntawm txoj kev ntawm Russia nws yog ib qho yooj yim kom tau raws li cov tsheb no, txawm li cas los xij, me ntsis seem ntawm lawv qhov qub tsos - lawv tsuas yog tuned.
Kev piav qhia ntawm BMW M50B20 thiab M50B20TU cav
M50 series suav nrog cov cav nrog lub tog raj kheej muaj peev xwm ntawm 2, 2.5, 3 thiab 3.2 litres. Qhov nrov tshaj plaws yog M50B20 lub cav nrog qhov tseeb ntim ntawm 1.91 litres. Lub cav tau tsim los ua ib qho kev hloov rau lub cav M20B20 outdated. Nws qhov kev txhim kho tseem ceeb tshaj nws cov neeg ua ntej yog ib qho thaiv nrog 6 lub tog raj kheej, txhua tus muaj 4 li qub. Lub tog raj kheej taub hau kuj tau txais ob lub camshafts thiab hydraulic lifters, ua tsaug rau qhov yuav tsum tau kho valve clearances tom qab 10-20 txhiab km raug tshem tawm.
BMW M50B20 thiab M50B20TU siv camshafts nrog ib theem ntawm 240/228, inlet li qub nrog ib txoj kab uas hla ntawm 33 hli, tso li qub - 27 hli. Nws kuj tseem muaj cov khoom siv yas kom tsawg los txo qhov hnyav tag nrho ntawm lub cav, thiab yog kev tsim kho dua tshiab ntawm cov neeg ua ntej ntawm M20 tsev neeg.
Tsis tas li ntawd nyob rau hauv M50B20, es tsis txhob siv txoj siv sia, siv cov saw hlau txhim khu kev qha, lub neej kev pab cuam yog 250 txhiab kilometers. Qhov no txhais tau hais tias cov tswv tuaj yeem hnov qab txog qhov teeb meem ntawm txoj siv tawv tawg thiab tom qab khoov ntawm cov li qub. Tsis tas li ntawd nyob rau hauv lub combustion engine, ib tug hluav taws xob ignition system tau siv, es tsis txhob ntawm ib tug distributor, ignition coils, tshiab pistons, thiab lub teeb txuas rods raug ntsia.
Xyoo 1992, lub cav M50B20 tau hloov kho nrog Vanos tshwj xeeb. Nws lub npe M50B20TU. Qhov system no muab dynamic tswj ntawm lub camshafts, uas yog, hloov nyob rau hauv lub valve sij hawm. Ua tsaug rau cov thev naus laus zis no, qhov nkhaus ntawm torque tsis dhau los ua qhov sib tw, lub cav thrust kuj tseem ruaj khov hauv txhua qhov ntawm nws txoj haujlwm. Ntawd yog, ntawm M50B20TU lub cav ntawm qhov qis thiab siab ceev, lub zog yuav siab dua ntawm M50B20, uas yuav ua kom lub zog (kev nrawm) ntawm lub tsheb thiab, hauv kev xav, txuag roj. Txawm hais tias qhov ceev ntawm kev sib hloov ntawm lub crankshaft, lub cav yuav ntau dua kev lag luam thiab ib puag ncig tus phooj ywg, thiab tseem ceeb tshaj - muaj zog dua.
Muaj ob peb lub VANOS: Mono thiab Ob. Lub M50B20 siv cov pa VANOS mono-system ntawm qhov nqus, uas hloov cov theem qhib ntawm qhov nqus tau. Qhov tseeb, cov cuab yeej no yog ib qho analogue ntawm VTEC thiab i-VTEC paub zoo los ntawm HONDA (txhua lub chaw tsim khoom muaj nws lub npe rau cov thev naus laus zis no).
Purely technically, kev siv ntawm VANOS ntawm M50B20TU ua rau nws muaj peev xwm hloov lub siab tshaj plaws torque ntawm qis speeds - mus txog 4200 rpm (4900 rpm hauv M50B20 tsis muaj VANOS system).
Yog li, 2-liter engine ntawm M50 tsev neeg tau txais 2 kev hloov kho:
- Kev hloov pauv yooj yim yam tsis muaj Vanos system nrog qhov sib piv ntawm 10.5, 150 hp. thiab torque ntawm 190 Nm ntawm 4700 rpm.
- Nrog Vanos system, camshafts tshiab. Ntawm no, qhov sib piv compression tau nce mus rau 11, lub zog yog tib yam - 150 hp. ntawm 4900 rpm; torque - 190 Nm ntawm 4200 rpm.
Yog tias koj xaiv ntawm ob txoj kev xaiv, ces qhov thib ob yog qhov zoo dua. Vim lub stabilization ntawm torque nyob rau hauv qis, nruab nrab thiab siab speeds, lub cav khiav ntau economic thiab ruaj khov, thiab lub tsheb yuav ntau dynamic thiab teb rau cov roj pedal.
Nyob
Cov cav nrog lub tog raj kheej muaj peev xwm ntawm 2 litres tsis muaj lub zog siab ua ntej, yog li cov tswv ntawm M50B20 feem ntau sim txhim kho lawv. Muaj ntau txoj hauv kev ntxiv horsepower yam tsis tau poob ib qho peev txheej.
Ib qho yooj yim xaiv yog yuav M50B25 lub cev muaj zog rau Swap. Nws yog qhov tsim nyog raws li kev hloov pauv zoo ntawm cov tsheb nrog M50B20 thiab 2 hp muaj zog dua li 42-litre version. Ntxiv rau, muaj txoj hauv kev los hloov kho M50B25 los txhawb lub zog ntxiv.
Kuj tseem muaj kev xaiv rau kev hloov kho lub cav "native" M50B20. Qhov yooj yim tshaj plaws yog kom nws ntim ntawm 2 mus rau 2.6 litres. Ua li no, koj yuav tsum yuav pistons los ntawm M50TUB20, cua ntws sensors thiab crankshaft - los ntawm M52B28; txuas rods nyob twj ywm "native". Koj tseem yuav tsum tau coj ob peb yam los ntawm B50B25: throttle valve, tuned ECU, siab regulator. Yog tias tag nrho cov no raug ntsia rau ntawm M50B20, ces nws lub zog yuav nce mus rau 200 hp, qhov sib piv ntawm compression yuav nce mus rau 12. Raws li, roj nrog qhov ntsuas octane siab dua yuav tsum tau, yog li tsuas yog AI-98 roj av yuav tsum tau refueled. , txwv tsis pub detonation yuav tshwm sim thiab lub hwj chim poob. Los ntawm kev txhim kho lub gasket tuab ntawm lub tog raj kheej taub hau, koj tuaj yeem tsav ntawm AI-95 roj av tsis muaj teeb meem.
Yog hais tias lub cav yog nrog Vanos system, ces cov nozzles yuav tsum tau xaiv los ntawm M50B25, cov rods txuas los ntawm M52B28.
Cov kev hloov pauv tau ua yuav nce lub peev xwm ntawm cov thooj voos kheej kheej - qhov tshwm sim yuav luag tag nrho M50B28, tab sis txhawm rau qhib nws lub peev xwm tag nrho, nws yog qhov yuav tsum tau nruab ib lub throttle valve thiab noj cov khoom siv los ntawm M50B25, kev ua kis las sib npaug-ntev manifold. , nthuav thiab hloov kho cov kab nkag thiab qhov hluav taws xob ntawm lub tog raj kheej taub hau (porting). Cov kev hloov no yuav ua rau kom lub zog mus rau qhov siab tshaj plaws - xws li lub cev muaj zog yuav ua tau ntau dua lub zog ntawm M50B25.
Ntawm kev muag khoom ntawm cov khoom siv muaj feem xyuam muaj cov khoom siv stroker uas tso cai rau koj kom tau txais lub tog raj kheej ntim ntawm 3 litres. Ua li no, lawv yuav tsum tau dhuav rau 84 hli, pistons nrog rings, crankshaft thiab txuas rods los ntawm m54B30 yuav tsum tau ntsia. Lub tog raj kheej thaiv nws tus kheej yog hauv av los ntawm 1 mm. Lub tog raj kheej lub taub hau thiab cov hnab looj tes yog muab los ntawm M50B25, 250 cc injectors raug teeb tsa, ua tiav cov sijhawm sib txuas. Yuav muaj ob peb yam tseem tshuav los ntawm lub ntsiab M50B20, tam sim no nws yuav yog M50B30 Stroker nrog ntim ntawm 3 litres.
Koj tuaj yeem ua tiav lub zog siab tshaj plaws yam tsis siv lub supercharger los ntawm kev txhim kho Schrick 264/256 camshafts, nozzles los ntawm S50B32, 6-throttle kom tsawg. Qhov no yuav tso cai rau koj tshem tawm txog 260-270 hp ntawm lub cav.
Turbo kit
Qhov yooj yim tshaj plaws rau turbocharge 2L M50 yog kom haum rau Garrett GT30 turbo cov khoom siv nrog MAP sensors, turbo manifold, broadband lambda probes, kev ua haujlwm siab 440cc injectors, tag nrho kev noj thiab tso pa. Koj tseem yuav xav tau tshwj xeeb firmware rau tag nrho cov khoom no kom ua haujlwm zoo. Ntawm cov zis, lub hwj chim yuav nce mus rau 300 hp, thiab qhov no yog nyob rau hauv Tshuag piston pawg.
Koj tuaj yeem nruab 550cc injectors thiab Garett GT35 turbine, hloov lub Hoobkas pistons nrog CP Pistons, nruab tshiab APR txuas rods thiab bolts. Qhov no yuav tshem tawm 400+ hp.
Teeb meem
Thiab txawm hais tias lub cav M50B20 muaj cov peev txheej ntev, nws muaj qee qhov teeb meem:
- Tshaj kub. Nws yog tus yam ntxwv ntawm yuav luag tag nrho cov combustion engine nrog lub M Performance index, chav tsev yog ib qho nyuaj rau kev zam, yog li kev ua haujlwm kub (90 degrees) yuav tsum ua rau muaj kev txhawj xeeb ntawm cov neeg tsav tsheb. Koj yuav tsum tau xyuas cov ntsuas kub, twj tso kua mis, tshuaj tiv thaiv. Tej zaum overheating yog tshwm sim los ntawm lub xub ntiag ntawm huab cua nyob rau hauv lub txias system.
- Teeb meem tshwm sim los ntawm tawg nozzles, ignition coils, spark plugs.
- Vanos system. Feem ntau, cov tswv ntawm cov cav nrog cov thev naus laus zis no yws txog rattling hauv lub tog raj kheej taub hau, ua luam dej nrawm, thiab txo qis zog. Koj yuav tau yuav Vanos M50 kho cov khoom siv.
- Ua luam dej revolutions. Txhua yam yog tus qauv ntawm no: qhov tawg tsis ua haujlwm valve lossis qhov ntsuas qhov ntsuas qhov ntsuas. Feem ntau daws tau los ntawm kev tu lub cev muaj zog thiab lub damper nws tus kheej.
- Roj pov tseg. Vim lub ntuj hnav thiab tsim kua muag ntawm lub cav M50B20, lawv tuaj yeem "noj" 1 liter ib 1000 km. Kev kho dua tshiab yuav ua rau ib ntus lossis tsis daws qhov teeb meem txhua, yog li koj tsuas yog yuav tsum tau ntxiv roj. Tsis tas li ntawd, lub valve npog gasket tuaj yeem xau ntawm no, txawm tias cov roj tuaj yeem khiav tawm ntawm lub dipstick.
- Lub tank nthuav dav ntawm cov tshuaj tiv thaiv kab mob tuaj yeem tawg thaum lub sijhawm - lub coolant yuav tawm ntawm qhov tawg.
Cov teeb meem no tshwm sim ntawm cov motors siv, tab sis qhov no yog qhov qub tag nrho. Txawm hais tias txhua yam, M50 xyaw yog qhov tshwj xeeb txhim khu kev qha. Cov no feem ntau legendary motors, uas ntawm tag nrho cov internal combustion engine tsim los ntawm German kev txhawj xeeb yog ib tug zoo tshaj plaws thiab muaj kev vam meej. Lawv tsis muaj cov qauv tsim tsis raug, thiab cov teeb meem tshwm sim muaj feem cuam tshuam rau kev hnav lossis kev ua haujlwm tsis raug.
Nrog kev saib xyuas kom raug thiab raws sijhawm, kev siv cov khoom siv zoo thiab qub "consumables", cov peev txheej ntawm lub cev muaj zog tshaj 300-400 txhiab kilometers. Nws muaj lub koob npe nrov ntawm millionaire, tab sis kom dhau 1 lab km. ua tau tsuas yog nrog kev pabcuam zoo meej.
Daim ntawv cog lus cav
Thiab txawm hais tias ICEs kawg tau dov tawm ntawm cov kab sib dhos hauv xyoo 1994, hnub no lawv tseem tab tom txav mus los, thiab nws yooj yim mus nrhiav cov ntawv cog lus ntawm cov chaw tsim nyog. Lawv tus nqi nyob ntawm qhov mileage, mob, txuas, xyoo ntawm kev tsim khoom.
Tus nqi sib txawv - los ntawm 25 mus rau 70 txhiab rubles; Tus nqi nruab nrab yog 50000 rubles. Nov yog cov screenshots los ntawm cov peev txheej cuam tshuam.
Rau me ntsis nyiaj, lub cav tuaj yeem yuav thiab muab tso rau hauv koj lub tsheb, yog tias tsim nyog.
xaus
Lub tsheb raws li BMW M50B20 thiab M50B20TU sab hauv combustion xyaw tsis pom zoo rau kev yuav khoom vim yooj yim - lawv cov peev txheej tau muab dov tawm. Yog tias koj xaiv BMW raws li lawv, ces npaj los nqis peev hauv kev kho. Txawm li cas los xij, muab cov peev txheej loj ntawm lub cev muaj zog, cov qauv nrog thaj tsam ntawm 200 txhiab km tuaj yeem tsav tau tib yam, tab sis qhov no tsis tshem tawm qhov xav tau kev kho me me lossis nruab nrab.
