Injini Mitsubishi 4m41
Okuqukethwe
Injini entsha engu-4m41 yavela ngo-1999. Le yunithi yamandla ifakwe kwi-Mitsubishi Pajero 3. Injini engu-3,2-litre enobubanzi obuyisilinda obunyukile ine-crankshaft ene-piston stroke ende nezinye izingxenye eziguquliwe.
Incazelo
Injini engu-4m41 idonsa ngodizili. Ifakwe amasilinda angu-4 kanye nenani elifanayo lama-valve isilinda ngasinye. Ibhulokhi ivikelwe ngekhanda elisha le-aluminium. Uphethiloli uhlinzekwa ngohlelo lomjovo oluqondile.
Idizayini yenjini isezingeni lemiklamo yama-camshaft amabili. Amavalvu okudonsa angu-33mm kanti ama-exhaust valves angu-31mm. Ubukhulu be-valve stem buyi-6,5 mm. I-timing drive iyiketango, kodwa ayithembekile njengaku-4m40 (iqala ukwenza umsindo eduze nokugijima kwe-150th).
I-4m41 iyinjini ene-turbocharged efakwe i-MHI blower. Uma kuqhathaniswa nokwandulele 4m40, abaklami bakwazi ukwandisa amandla (yafinyelela 165 hp), torque kuwo wonke amabanga (351 Nm / 2000 rpm) futhi ngcono ukusebenza kwemvelo. Okubaluleke kakhulu kwakuwukuncishiswa kokusetshenziswa kukaphethiloli.
Kusukela ngo-2006, kwaqala ukukhiqizwa kwe-4m41 Common Rail ethuthukisiwe. I-turbine, ngokufanelekile, ishintshele ku-IHI enejiyomethri eguquguqukayo. Amapayipi okungenisa aklanywe kabusha, inqwaba entsha yokungenisa enezigaba ezijikajikayo ifakiwe futhi uhlelo lwe-EGR seluthuthukisiwe. Konke lokhu kwenza kube nokwenzeka ukwandisa ekilasini imvelo, engeza amandla (manje isibe 175 hp) kanye torque (382 NM / 2000).
Ngemva kweminyaka emi-4, injini yaphinde yashintshwa. Amandla eyunithi akhuphuke afinyelela ku-200 amalitha. nge., torque - kufika ku-441 Nm.
Ngo-2015, i-4m41 yaphelelwa yisikhathi futhi yathathelwa indawo yi-4n15.
Технические характеристики
| Manufacturing | Isitshalo senjini yaseKyoto |
| Enza injini | 4M4 |
| Iminyaka yokukhululwa | 1999 |
| Impahla yebhulokhi eyisilinda | Insimbi |
| uhlobo lwenjini | udizili |
| Ukucushwa | emugqeni |
| Inani lamasilinda | 4 |
| Amasilinda ngesilinda ngasinye | 4 |
| Piston unhlangothi, mm | 105 |
| Ububanzi besilinda, mm | 98.5 |
| Isilinganiso sokucindezela | I-16.0; I-17.0 |
| Ukufuduka kwenjini, ama-cubic cm | 3200 |
| Amandla enjini, hp / rpm | 165/4000; 175/3800; 200/3800 |
| I-Torque, Nm / rpm | 351/2000; 382/2000; 441/2000 |
| I-Turbocharger | I-MHI TF035HL |
| Ukusetshenziswa kukaphethiloli, l/100 km (yePajero 4) | 11/8.0/9.0 |
| Ukusetshenziswa kukawoyela, igr. / 1000 km | ukuze 1000 |
| Amafutha enjini | 5W-30; 10W-30; 10W-40; 15W-40 |
| Ushintsho lwamafutha lwenziwa, km | 15000 noma (okungcono 7500) |
| Ukushisa kokusebenza kwenjini, ama-deg. | 90 |
| Insiza yenjini, amakhilomitha ayizinkulungwane | 400 + |
| Ukushuna, amandla e-HP | 200 + |
| Injini ifakiwe | IMitsubishi Triton, Pajero, Pajero Sport |
Ukungasebenzi kahle kwenjini 4m41
Izinkinga ezibhekene nomnikazi wemoto ene-4m41.
- Ngemuva kokugijima kwezinkulungwane eziyi-150-200, uchungechunge lwezikhathi luqala ukwenza umsindo. Lesi isignali ecacile yomnikazi - kuyadingeka ukwenza ukushintshwa kuze kube yilapho idabukile.
- Iphampu yomjovo "Efa". Iphampu ye-high pressure ebucayi ayiboni uphethiloli wedizili wezinga eliphansi. Uphawu lwepompo engasebenzi - injini ayiqali noma ingaqali, amandla ayo ayancipha. Ngokusho komkhiqizi, i-high-pressure fuel futha ikwazi ukukhonza amakhilomitha angaphezu kwezinkulungwane ezingama-300, kodwa kuphela ngaphansi kwesimo sezinga eliphezulu likaphethiloli kanye nenkonzo enekhono.
- Ibhande le-alternator liyehluleka. Ngenxa yalokhu, impempe iqala, ingena ngaphakathi emotweni. Ngokuvamile, ukungezwani kwebhande kusindisa isikhashana, kodwa ukushintshwa kuphela ekugcineni kusiza ukuxazulula inkinga.
- I-crankshaft pulley iyahlukana. Cishe njalo ngamakhilomitha ayizinkulungwane eziyi-100 kuyadingeka ukuyihlola.
- Ukulungiswa kwe-valve kufanele kwenziwe njalo ngamakhilomitha ayizinkulungwane ezingu-15. Izikhala zimi kanje: endaweni yokungena - 0,1 mm, futhi ekuphumeni - 0,15 mm. Ukuhlanza i-valve ye-EGR kubaluleke kakhulu - ayiboni uphethiloli wezinga eliphansi, ingcoliswa ngokushesha. Abanikazi abaningi benza emhlabeni wonke - bamane bajame i-USR.
- Umjovo uyehluleka. Ama-nozzles angakwazi ukusebenza ngaphandle kwezinkinga ngaphezu kwe-100-150 km, kodwa emva kwalokho izinkinga ziqala.
- I-turbine izimemezela njalo ngamakhilomitha ayizinkulungwane ezingu-250-300.
Chain
Naphezu kweqiniso lokuthi i-chain drive ibukeka inokwethenjelwa kakhulu kune-belt drive, nayo inomthombo wayo. Kakade ngemva kweminyaka engu-3 yokusebenza kwemoto, kuyadingeka ukuhlola ama-tensioners, ama-dampers nama-sprockets.
Izimbangela eziyinhloko zokugqoka amaketanga ngokushesha kufanele zibhekwe kulokhu okulandelayo:
- ekushintshweni kusenesikhathi kwesigcobo semoto noma ukusetshenziswa kwamafutha okungewona awendabuko;
- ekucindezelweni okuphansi okwakhiwa yiphampu yamafutha omfutho ophezulu;
- kumodi yokusebenza engalungile;
- ekulungiseni izinga eliphansi, njll.
Imvamisa, izinti ze-tensioner plunger noma i-valve yebhola yokuhlola ayisebenzi. Iketango liyaphuka ngenxa yokupheka kanye nokwakheka kwamadiphozi kawoyela.
Ukuze unqume ukugqokwa kweketango, lapho lisebuthakathaka, kungenzeka ngomsindo ofanayo wenjini, ohlukaniswa ngokucacile ngokungenzi lutho futhi "emakhazeni". Ku-4m41, ukungezwani kweketango okubuthakathaka kuzobangela ingxenye ukuthi ilule kancane kancane - amazinyo azoqala ukugxumela ku-sprocket.
Kodwa-ke, uphawu oluvame kakhulu lweketango eligugile ku-4m41 umsindo okhencezayo futhi ongacacile - uzibonakalisa ngaphambili kweyunithi yamandla. Lo msindo ufana nomsindo wokushiswa kukaphethiloli kumasilinda.
Ukwelula okuqinile kweketango sekuvele kuhlukaniseke ngokucacile hhayi kuphela ngokungenzi lutho, kodwa futhi ngesivinini esiphezulu. Ukusebenza isikhathi eside kwemoto enedrayivu enjalo kuzoholela kulokhu:
- ukweqa iketango nokwehlisa izimpawu zesikhathi;
- ukuphulwa kwendlela yokusabalalisa igesi;
- ukulimala kwepiston;
- ukuphula ikhanda le-cylinder;
- ukubonakala kwezikhala ebusweni bamasilinda.
Isifunda esivulekile siwumphumela wokunakekelwa okungakafiki isikhathi. Lokhu kusongela ukushintsha injini. Isignali yokushintshwa okuphuthumayo kwesekhethi kungase kube ukwehluleka kwesiqalisi lapho uqalisa injini noma umsindo omusha wedivayisi yokuqala ongakaze uboniswe ngaphambili.
Ukushintsha iketango ngo-4m41 kufanele kusho ukubuyekeza inani lezinto eziyimpoqo (ithebula elingezansi linikeza uhlu).
| Igama Product | Inombolo |
| Uchungechunge lwezikhathi ME203085 | 1 |
| Inkanyezi ye-camshaft yokuqala engu-ME190341 | 1 |
| I-Sprocket ye-camshaft yesibili ye-ME203099 | 1 |
| I-Twin crankshaft sprocket ME190556 | 1 |
| I-Hydraulic tensioner ME203100 | 1 |
| Tensioner gasket ME201853 | 1 |
| Isicathulo se-Tensioner ME203833 | 1 |
| Zolile (isikhathi eside) ME191029 | 1 |
| Idamper encane ephezulu ye-ME203096 | 1 |
| I-damper encane ephansi ye-ME203093 | 1 |
| Ukhiye we-Camshaft ME200515 | 2 |
| Uwoyela seal crankshaft ME202850 | 1 |
I-TNVD
Isizathu esiyinhloko sokungasebenzi kahle kwephampu ye-fuel-pressure fuel ku-4m41, njengoba kushiwo ngenhla, izinga elibi likaphethiloli we-diesel. Lokhu kuholela ngokushesha ekuguqulweni kokulungiswa, ukubonakala komsindo omusha nokushisa ngokweqile. Ama-plunger angavele ajame. Lokhu kuvame ukwenzeka ku-4m41 ngenxa yokungena kwamanzi esikhaleni. I-plunger isebenza njengokungathi ayinawo ukugcoba, futhi ngenxa yokungqubuzana iphakamisa phezulu, iyashisa futhi igcwale. Ukuba khona komswakama kuphethiloli we-diesel kubangela inqubo egqwalayo ye-plunger kanye nomkhono.
Iphampu yomjovo nayo ingawohloka ngenxa yokugqoka kwe-banal kwezingxenye. Isibonelo, ukuqina kwenza buthaka noma ukwanda kokudlala kwabalingani abagudlukayo. Ngesikhathi esifanayo, isikhundla esilungile esihlobene sezakhi siphulwa, ubulukhuni bezindawo buyashintsha, lapho i-carbon deposits iqoqa kancane kancane.
Okunye ukungasebenzi kahle kwephampu ye-high-pressure fuel ukwehla kokutholakala kukaphethiloli kanye nokwenyuka kokungalingani kwawo. Lokhu kubangelwa ukugqokwa kwama-plunger pair - izakhi ezibiza kakhulu zepompo. Ngaphezu kwalokho, ama-plunger leashes, ama-valve akhipha amanzi, izinsimbi zokubeka ama-rack, njll. Ngenxa yalokho, ukuphuma kwama-nozzles kuyashintsha, namandla enjini nokusebenza kahle kuyaphazamiseka.
I-injection lag nayo iwuhlobo oluvamile lokuhluleka kwepompo yomfutho ophezulu. Kubuye kuchazwe ngokugqoka kwezingxenye eziningana - i-roller axis, i-pusher housing, amabhola amabhola, i-camshaft, njll.
Ibhande le-generator
Esinye sezizathu eziyinhloko zokuthi kungani ibhande le-alternator liphuka ku-4m41 ukugoba kokufakwa kwe-pulley ngemva kokulungiswa okulandelayo. Ukuqondanisa okungalungile kwe-mutual kuholela eqinisweni lokuthi ibhande alizungezi ku-arc elilinganayo futhi lithinta izindlela ezahlukahlukene - ngenxa yalokho, liguga ngokushesha futhi liphule.
Esinye isizathu sokugqoka kwasekuqaleni i-crankshaft pulley egobile. Ungakwazi ukunquma lokhu kungasebenzi ngenkomba yokudayela ekuvumela ukuthi uhlole isigqi.
Endizeni ye-pulley, ama-burrs angakheka - sagging ngendlela yamachashazi ensimbi. Lokhu akwamukelekile, ngakho-ke i-pulley enjalo kufanele ibe phansi.
Ama-bearings ahlulekile nawo ayimbangela yebhande eliphukile. Kufanele bajikeleze kalula ngaphandle kwebhande. Kungenjalo, kuwukupela.
Ibhande eselizogqashuka noma lishelele nakanjani lizoshaya ikhwela. Ukushintsha ingxenye ngaphandle kokuhlola ama-bearings ngeke kusebenze. Ngakho-ke, kufanele uqale uhlole umsebenzi wabo, bese kuphela esikhundleni sebhande.
I-Crankshaft pulley
Naphezu kwamandla efekthri, i-crankshaft pulley iyahlukana ngokuhamba kwesikhathi kusukela ekusebenzeni okungalungile noma ngemva kwemayela elide lemoto. Umthetho wokuqala okumele umnikazi wemoto enenjini engu-4m41 awukhumbule wukuthi angajikijeli i-crankshaft ngepulley!
Eqinisweni, i-pulley iqukethe izingxenye ezimbili. Imithwalo eyeqile kule nodi ingaholela ekuqhekekeni okusheshayo. Izimpawu - isondo lokuqondisa itshe, ukukhanya kweshaja ecwayizayo, ukungqongqoza.
Mayelana nezinjini ezinama-camshafts amabili
Ama-camshafts enjini abekwe ekhanda le-cylinder. Lo mklamo ubizwa nge-DOHC - uma kune-camshaft eyodwa kuphela, bese kuba yi-SOHC.
Kungani ubeka ama-camshafts amabili? Okokuqala, lo mklamo ubangelwa inkinga yokushayela kusuka kuma-valve amaningana - kunzima ukwenza lokhu kusuka ku-camshaft eyodwa. Ngaphezu kwalokho, uma wonke umthwalo uwela ku-shaft eyodwa, khona-ke ungase ungabekezeleli futhi uzobhekwa njengokulayishwa ngokweqile.
Ngakho-ke, izinjini ezine-camshafts ezimbili (4m41) zithembeke kakhulu, njengoba impilo yeyunithi yokusabalalisa inwetshiwe. Umthwalo usatshalaliswa ngokulinganayo phakathi kwama-shafts amabili: enye ishayela ama-valve okungenisa kanti enye ishayela ama-valve okukhipha.
Ngokulandelayo, kuphakama umbuzo, mangaki ama-valve okufanele asetshenziswe? Iqiniso liwukuthi inani elikhulu labo lingathuthukisa ukugcwaliswa kwekamelo ngengxube ye-fuel-air. Ngokomthetho, kwakungenzeka ukugcwalisa nge-valve eyodwa, kodwa kungaba enkulu, futhi ukwethembeka kwayo kuzobe kubuzwa. Ama-valve amaningana asebenza ngokushesha, avule isikhathi eside, futhi ingxube igcwalisa ngokuphelele isilinda.
Uma kuhloswe ukusetshenziswa kwe-shaft eyodwa, izingalo ze-rocker noma ama-rocker afakwe ezinjini zesimanje. Lo mshini uxhumanisa i-camshaft kumavalvu. Futhi inketho, kodwa umklamo uba nzima kakhulu, njengoba imininingwane eminingi eyinkimbinkimbi ivela.
