Mitsubishi 4m40 XNUMX-qhov chaw nres tsheb wagon
Txheem
Qhov no yog nyob rau hauv-kab 4-lub tog raj kheej diesel hwj chim unit nrog ib tug overhead camshaft. 4m40 yog txawm peem rau nrog ib tug cam khwb cia hlau lub tog raj kheej thaiv thiab ib tug semi-aluminium lub tog raj kheej taub hau. Lub cav muaj peev xwm yog 2835 cmXNUMX.
Cav piav qhia
Txhua lub cev muaj zog yuav tsum sib npaug los ntawm inertial rog. 4m40 yog tsis muaj kev zam. 2 ntxiv balancer shafts yog lub luag hauj lwm rau qhov no. Lawv yog tsav los ntawm nruab nrab lub zog los ntawm lub crankshaft, thiab nyob rau hauv raws li nram no: sab xis thiab hauv qab sab laug. Lub cav crankshaft yog steel, raws li 5 bearings. Lub piston ntawm ib hom tshwj xeeb, semi-aluminium, txuas nrog lub pas nrig txuas los ntawm kev siv tus pin ntab.
Cov nplhaib yog ua los ntawm cam khwb cia hlau. Swirl combustion chambers (VCS) yog ntsia rau hauv lub tog raj kheej taub hau, ua rau nws muaj peev xwm ua kom cov roj efficiency nce. Qhov tseeb, cov no yog kaw hlau chamber ntsia rau hauv lub tog raj kheej taub hau. Nyob rau hauv muaj ib tug ceramic-hlau insert thiab ib tug spherical screen ua ib tug huab cua sib txawv nrog rau sab hauv ntawm lub chamber. Ntxiv nrog rau kev ua kom tiav cov roj combustion, VCS tso cai rau txo cov nitrogen oxides.
Lub camshaft ntawm lub cav 4m40 thiab siab siab roj twj tso kua mis yog tsav los ntawm lub crankshaft los ntawm ib tug iav.
Технические характеристики
| Ntau lawm | Kyoto cav cog |
| Cav tsim | 4M4 |
| Xyoo ntawm kev tso tawm | 1993-2006 |
| Lub tog raj kheej thaiv khoom siv | cam khwb cia hlau |
| hom cav | diesel |
| Configuration | inline |
| Cov nab npawb ntawm cov thooj voos kheej kheej | 4 |
| Li qub rau ib lub tog raj kheej | 2 |
| Piston mob stroke, hli | 100 |
| Lub tog raj kheej diam, mm | 95 |
| Compression piv | 21.0 |
| Cav tshem tawm, cubic cm | 2835 |
| Cav fais fab, hp / rpm | 80/4000 |
| 125/4000 | |
| 140/4000 | |
| Torque, Nm / rpm | 198/2000 |
| 294/2000 | |
| 314/2000 | |
| Ib puag ncig cov qauv | - |
| Kev qhauj qeeb | MHI TF035HM-12T |
| Lub cev hnyav, kg | 260 |
| Roj noj, l/100 km (rau Pajero 2) | |
| - nroog | 15 |
| - khiav | 10 |
| - lom zem kawg. | 12 |
| Roj noj, gr. / 1000 km | rau 1000 |
| Roj roj | 5W-30 |
| 5W-40 | |
| 10W-30 | |
| 15W-40 | |
| Cov roj muaj ntau npaum li cas hauv lub cav, l | 5,5 |
| Kev hloov roj yog nqa tawm, km | 15000 |
| (zoo tshaj 7500) | |
| Lub cav ua haujlwm kub, deg. | 90 |
| Cov khoom siv cav, txhiab km | |
| - raws li cog | - |
| - rau kev xyaum | 400 + |
| Nyob, h.p. | |
| - muaj peev xwm | - |
| - tsis poob peev | - |
| Lub cav tau teeb tsa | Mitsubishi L200, Delica, Pajero, Pajero Sport |
Kev ua haujlwm thiab kev ruaj ntseg ntawm lub cav diesel
4m40 yog zoo dua lub npe hu ua Pajero 2 engine. Nws yog thawj ntsia ntawm no SUV nyob rau hauv 1993. Lub tshuab hluav taws xob tau qhia los hloov lub qub 4d56, tab sis qhov kawg tseem tau tsim tom qab ntawd rau qee lub sijhawm.
Thawj qhov uas cov kws tshaj lij ntawm cov tsheb diesel tau saib xyuas yog lub turbine - nws cov peev txheej yog 4m40 hauv thaj av ntawm 300 txhiab km. Ib xyoos ib zaug, nco ntsoov ntxuav lub EGR valve. Feem ntau, lub cev muaj zog yog txhim khu kev qha, nrog kev saib xyuas kom zoo thiab refueling nrog zoo diesel roj thiab roj, nws yuav kav ntev li ntawm 350 txhiab km ntawm lub tsheb khiav.
Teeb meem thaj chaw ntawm 4m40 cav
| teeb meem | Kev piav qhia thiab kev daws teeb meem |
|---|---|
| Suab nrov | Muaj suab nrov tom qab ncab lub sij hawm saw. Yog li ntawd, nws yog ib qho tseem ceeb uas yuav tau xyuas thiab hloov cov tsav tsheb raws sijhawm. |
| Pib nyuaj | Feem ntau qhov teeb meem no daws tau los ntawm kev hloov lub twj tso kua mis roj foob. Qee zaum, lub tshev valve tuaj yeem hloov kho. |
| Kev tawg ntawm lub taub hau thaiv | Ib qho ntawm feem ntau cov kab mob ntawm lub cev muaj zog. Nws raug nquahu kom hloov lub taub hau lub tog raj kheej yog tias cov roj tau nkag mus rau hauv lub tank nthuav dav. |
| Kev cuam tshuam ntawm kev faib cov pa roj | Yog vim li cas tsis yog lub sij hawm siv, raws li nyob rau hauv feem ntau lub cav. Cov saw hlau muaj zog tau teeb tsa ntawm no, yog li kev kho cov khoom noj thiab cov pa tawm yuav kho qhov ua tsis zoo ntawm GDS. |
| Kev txo hwj chim, khob | Qhov teeb meem yog daws los ntawm kev ntxuav thiab kho cov li qub. Thaum lub sijhawm ua haujlwm ntev, qhov sib txawv ntawm qhov kawg thiab cov cams nce, uas cuam tshuam rau qhov tsis tiav ntawm cov valve. |
| Kev ua haujlwm tsis ruaj khov ntawm lub cav | Nws raug nquahu kom kuaj xyuas hydraulic saw tensioner, uas yog rhiab heev rau roj siab. |
| Ntxiv roj noj, nce suab nrov | Tshawb xyuas lub twj tso kua mis. |
Valve hloov ntawm 4m40
Tom qab txhua txhua 15 txhiab kilometers ntawm lub cav, nws yuav tsum tau mus xyuas / kho cov li qub. Lub clearances ntawm lub "kub" internal combustion engine yuav tsum tau raws li nram no:
- rau qhov nqus valve - 0,25 mm;
- rau kev kawm tiav - 0,35 mm.
Nws yog ib qho tseem ceeb heev los kho cov li qub ntawm 4m40, txawm li cas los xij, zoo li lwm cov motors. Diesel 4m40 yog ib qho yooj yim mechanism, nruab nrog ntau qhov sib txawv. Txhawm rau kom txhua yam ua haujlwm zoo kawg nkaus rau lub sijhawm ntev, nws yog ib qho tsim nyog yuav tsum ua raws li kev saib xyuas raws sijhawm.
Valves yog txwv tsis pub "phaj" nrog cov pas nrig ntev. Muab lawv tso rau hauv lub tog raj kheej thaiv. Muaj ob lub valve rau ib lub tog raj kheej. Thaum kaw, lawv so ntawm lub eeb ua los ntawm cov khoom hlau. Yog li hais tias cov khoom ntawm "phaj" tsis puas, cov li qub yog ua los ntawm cov alloys tshwj xeeb uas tuaj yeem tiv taus cov khoom siv hluav taws xob thiab thermal loads.
Valves yog qhov tseem ceeb ntawm lub sijhawm ua haujlwm. Lawv feem ntau muab faib ua inlet thiab qhov hluav taws xob. Cov qub yog lub luag haujlwm rau kev noj cov roj sib tov, tom kawg rau cov pa pa tawm.
Nyob rau hauv cov txheej txheem ntawm kev ua haujlwm ntev ntawm lub cav, "phaj" nthuav dav, thiab lawv cov pas nrig lengthen. Yog li ntawd, qhov ntev ntawm qhov sib txawv ntawm cov cams thawb thiab qhov kawg kuj hloov. Yog hais tias qhov sib txawv tshaj qhov siab tshaj qhov tso cai, yuav tsum tau hloov kho yuav tsum tau ua.
Nws yog ib qho tseem ceeb heev uas yuav tau hloov kho raws sij hawm. Piv txwv li, nrog qhov me me, "hlawv" yuav tshwm sim tsis tau - kev ua haujlwm ntawm cov pa xa hluav taws xob yuav raug cuam tshuam, vim tias txheej txheej tuab heev ntawm cov xuab zeb yuav khaws cia rau ntawm daim iav ntawm "phaj". Nrog rau qhov sib txawv ntxiv, cov li qub yuav tsis tuaj yeem qhib tag nrho. Vim li no, lub zog ntawm lub cav yuav txo qis, cov li qub yuav pib khob.
Timing chain drive: pros thiab cons
Lub cav 4m40 siv ob-kab lub sijhawm sib txuas. Nws kav ntev dua li txoj siv sia - kwv yees li 250 txhiab kilometers. Qhov no yog ib lub sij hawm-kuaj tshuaj uas tau ua pov thawj nws tus kheej kom ntseeg tau heev. Cov saw tsav yog ruaj khov dua, txawm tias nws muaj ntau qhov tsis zoo.
- Qhov nce suab nrov ntawm 4m40 lub cav yog tshwm sim los ntawm kev siv lub sij hawm saw tsav. Txawm li cas los xij, qhov tsis zoo no tau yooj yim them los ntawm qhov ua tau zoo ntawm shvi ntawm lub cav compartment.
- Tom qab 250 txhiab kilometers, cov saw hlau pib ncab, lub suab nrov tshwm sim. Muaj tseeb, qhov no tsis tau cog lus tias yuav muaj teeb meem loj - qhov tsis plam ntawm lub zog, GDS theem tsis ua yuam kev, lub cev muaj zog txuas ntxiv ua haujlwm ruaj khov.
- Hlau saw motors yog sib piv hnyav dua li siv cov tsav tsheb. Qhov no cuam tshuam tsis zoo rau cov dej num ntawm kev tsim khoom niaj hnub. Raws li koj paub, nyob rau hauv kev sib tw rau cov neeg sib tw, txhua leej txhua tus tau tsom mus rau ntau compact internal combustion engine, yog li ntawd lawv sim txo qhov luaj li cas ntawm lub hwj chim unit thiab nws qhov hnyav. Ob chav kab saw tsis tau raws li cov qauv zoo li no, tshwj tsis yog tias ib kab yog nqaim, tab sis nws tsis yog rau lub zog diesel 4m.
- Cov saw tsav siv hydraulic tensioner, uas yog rhiab heev rau roj siab. Yog tias nws "dhia" rau ib qho laj thawj, cov saw hniav yuav pib plam zoo li ntawm txoj siv sia siv.
Tab sis cov saw tsav, nrog rau cov minuses, muaj ntau pluses.
- Cov saw hlau yog ib feem ntawm lub cav, thiab tsis tso zis raws li ib txoj siv cais. Qhov no txhais tau tias nws muaj kev ruaj ntseg tiv thaiv los ntawm av, plua plav thiab dej.
- Ua tsaug rau kev siv cov saw hlau, nws tuaj yeem ua tau zoo dua cov theem ntawm GDS. Cov saw tsis raug ncua ntev (250-300 txhiab km), yog li ntawd, nws tsis mob siab rau qhov loj hlob ntawm lub cav - lub cev muaj zog yuav tsis poob nws lub zog thawj zaug ntawm kev nce thiab siab tshaj plaws.
hwv 4m40
Lub cav 4m40 pib siv lub tshuab txhaj tshuaj twj tso kua mis. Lub twj tso kua mis ua haujlwm nrog MHI turbine thiab intercooler. Qhov no yog 4m40 version, tsim 125 hp. ntawm 4000 rpm.
Twb tau nyob rau lub Tsib Hlis 1996, cov neeg tsim qauv tau qhia txog kev siv lub cav diesel nrog EFI turbine. Tus tshiab version tsim 140 hp. nyob rau tib qhov ceev, lub zog torque tau nce, thiab tag nrho cov no tau ua tiav los ntawm kev siv lub twj tso kua mis tshiab.
Lub twj tso kua mis siab yog ib qho tseem ceeb ntawm lub cav diesel. Cov cuab yeej yog complex, tsim los muab roj rau lub cav nyob rau hauv lub zog siab. Nyob rau hauv qhov kev tshwm sim ntawm ib tug malfunction, yuav tsum tau kho cov kws tshaj lij los yog kev hloov ntawm cov khoom tshwj xeeb yuav tsum tau.
Feem ntau, 4m40 diesel txhaj twj tso kua mis tsis ua haujlwm vim roj thiab roj tsis zoo. Plua plav, cov khoom siv ntawm cov av, dej - yog tias nws muaj nyob rau hauv cov roj los yog roj nplua nyeem, nws nkag mus rau hauv lub twj tso kua mis, thiab tom qab ntawd ua rau muaj kev puas tsuaj ntawm cov khoom kim heev plunger. Lub installation ntawm tom kawg yog nqa tawm tsuas yog los ntawm cov cuab yeej siv nrog micron kam rau ua.
Nws yog ib qho yooj yim los txiav txim qhov tsis ua haujlwm ntawm lub twj tso kua mis txhaj tshuaj:
- lub nozzles lub luag hauj lwm rau cov tshuaj tsuag thiab txhaj cov roj diesel deteriorate;
- kev siv roj nce;
- nce pa luam yeeb;
- lub suab nrov ntawm lub cav diesel nce;
- hwj chim txo;
- nyuaj pib.
Raws li koj paub, niaj hnub Pajero, Delica thiab Pajero Kev ua si nawv, nruab nrog 4m40, muaj ECU - kev txhaj tshuaj roj yog tswj los ntawm lub tshuab hluav taws xob. Txhawm rau txiav txim siab qhov ua haujlwm tsis zoo, koj yuav tsum hu rau qhov kev pabcuam diesel, qhov chaw uas muaj cov cuab yeej ua haujlwm tshaj lij. Nyob rau hauv cov txheej txheem ntawm kev kuaj mob, nws muaj peev xwm txheeb xyuas qhov degree ntawm hnav, lub neej seem ntawm cov khoom seem ntawm lub tshuab hluav taws xob, qhov sib xws ntawm cov khoom siv roj, kev ruaj ntseg siab, thiab ntau ntxiv.
Cov tshuab txhaj tshuaj twj tso kua mis, uas tau teeb tsa rau thawj cov qauv ntawm 4m40, tsis muaj peev xwm muab qhov tsim nyog ntawm kev txhaj tshuaj, vim tias cov kws tsim khoom tau hloov cov qauv tsim, coj nws mus rau ECO qauv tshiab. Cov qauv emission tau nruj nyob txhua qhov chaw, thiab cov qub hom twj tso kua mis muaj peev xwm ua pov thawj tias ua haujlwm tsis txaus.
Rau cov tshuab hluav taws xob, lawv tuaj nrog cov roj txhaj tshuaj tshiab ntawm hom kev faib khoom, ntxiv los ntawm cov tswj cov actuators. Lawv tau ua kom nws tuaj yeem kho qhov chaw ntawm lub dispenser thiab tsis siv neeg roj txhaj tshuaj ua ntej valve.
4m40 tau tsim nws tus kheej ua lub zog muaj zog thiab txhim khu kev qha. Txawm li cas los xij, lub sijhawm tsis nyob twj ywm - 3m4 tshiab nrog lub ntim ua haujlwm ntawm 41 litre twb tau teeb tsa rau Pajero 3,2. Lub cav no yog qhov tshwm sim ntawm ntau xyoo ntawm kev ua haujlwm los ntawm engineers uas tau txheeb xyuas thiab tshem tawm cov ntsiab lus tsis muaj zog ntawm qhov zoo, tab sis dhau los ntawm 4m40.
