Injin Mitsubishi 4m41
Abubuwa
Sabuwar injin 4m41 ya bayyana a cikin 1999. An shigar da wannan naúrar wutar lantarki akan Mitsubishi Pajero 3. Injin mai lita 3,2 tare da ƙarin diamita na Silinda yana da crankshaft tare da bugun piston mai tsayi da sauran sassa da aka gyara.
Description
Injin 4m41 yana aiki da man dizal. An sanye shi da silinda 4 da adadin bawuloli iri ɗaya a kowace silinda. Sabon shugaban aluminium yana kiyaye shingen. Ana ba da man fetur ta tsarin allura kai tsaye.
Tsarin injin ɗin daidai yake don ƙirar camshaft biyu. Bawul ɗin shaye-shaye shine 33mm kuma bututun shayewa shine 31mm. Bawul kara kauri ne 6,5 mm. Motar lokaci shine sarkar, amma ba ta da aminci kamar akan 4m40 (yana fara yin hayaniya kusa da gudu na 150).
4m41 injin turbocharged ne wanda aka sanya na'urar busa MHI. Idan aka kwatanta da wanda ya gabace shi 4m40, masu zanen kaya sun sami damar haɓaka ƙarfin (ya kai 165 hp), juzu'i a duk jeri (351 Nm / 2000 rpm) da haɓaka aikin muhalli. Wani muhimmin mahimmanci shi ne rage yawan man fetur.
Tun 2006, an fara samar da ingantaccen 4m41 Common Rail. Turbine, don haka, ya canza zuwa IHI tare da madaidaicin lissafi. An sake fasalin hanyoyin shigar da kayan abinci, an shigar da sabon nau'in nau'in abinci tare da matakan juyawa kuma an inganta tsarin EGR. Duk wannan ya sa ya yiwu a ƙara darajar muhalli, ƙara iko (yanzu ya zama 175 hp) da karfin juyi (382 Nm / 2000).
Bayan wasu shekaru 4, an sake gyara injin ɗin. Ikon naúrar ya karu zuwa lita 200. tare da., karfin juyi - har zuwa 441 Nm.
A cikin 2015, 4m41 ya zama mara amfani kuma an maye gurbinsa da 4n15.
Технические характеристики
| masana'antu | Injin Kyoto |
| Alamar injiniya | 4M4 |
| Shekarun saki | 1999 |
| Silinda toshe kayan | baƙin ƙarfe |
| nau'in injin | dizal |
| Kanfigareshan | layi-layi |
| Yawan silinda | 4 |
| Bawuloli a kowace silinda | 4 |
| Bugun jini, mm | 105 |
| Silinda diamita, mm | 98.5 |
| Matsakaicin matsawa | 16.0. 17.0 |
| Matsayin injin, mai siffar sukari cm | 3200 |
| Enginearfin inji, hp / rpm | 165/4000; 175/3800; 200/3800 |
| Karfin juyi, Nm / rpm | 351/2000; 382/2000; 441/2000 |
| Turbocharger | Saukewa: MHI TF035HL |
| Amfanin mai, l/100km (na Pajero 4) | 11/8.0/9.0 |
| Amfanin mai, gr. / 1000 km | to 1000 |
| Man injin | 5W-30; 10W-30; 10W-40; 15W-40 |
| Ana aiwatar da canjin mai, km | 15000 ko (mafi kyau 7500) |
| Injin zafin jiki na aiki, deg. | 90 |
| Injin injiniya, kilomita dubu | 400 + |
| Tuning, HP m | 200 + |
| An saka injin | Mitsubishi Triton, Pajero, Pajero Sport |
Rashin aikin injin 4m41
Matsalolin da mai motar ke fuskanta mai nauyin 4m41.
- Bayan gudu na dubu 150-200, sarkar lokaci ta fara yin amo. Wannan alama ce bayyananne ga mai shi - wajibi ne don aiwatar da maye gurbin har sai an tsage.
- "Ya mutu" famfo allura. The m high matsa lamba famfo baya gane low-sa man dizal. Alamar famfo mara aiki - injin baya farawa ko baya farawa, ikonsa yana raguwa. A cewar masana'anta, famfon mai da ke da karfin gaske yana iya yin aiki fiye da kilomita dubu 300, amma bisa yanayin ingancin mai da ingantaccen sabis.
- Alternator bel yana kasawa. Saboda haka, an fara busa, yana shiga cikin motar. Yawancin lokaci, tashin hankali na bel yana ajiyewa na ɗan lokaci, amma maye gurbin kawai yana taimakawa wajen magance matsalar.
- Wurin ƙugiya yana faɗuwa. Kusan kowane kilomita dubu 100 ya zama dole a duba shi.
- Dole ne a gudanar da daidaitawar bawul a kowane kilomita dubu 15. Matsakaicin su ne kamar haka: a mashigar - 0,1 mm, kuma a cikin fitarwa - 0,15 mm. Tsaftace bawul ɗin EGR yana da mahimmanci musamman - bai gane ƙarancin man fetur ba, da sauri ya zama gurɓatacce. Yawancin masu mallaka suna yin aiki a duniya - kawai suna lalata USR.
- Mai allura ya kasa. Nozzles suna iya yin aiki ba tare da matsala ba fiye da kilomita dubu 100-150, amma bayan haka matsalolin sun fara.
- Turbine yana bayyana kansa a kowane kilomita 250-300.
Sarkar
Duk da cewa sarkar drive ya dubi mafi aminci fiye da bel drive, shi ma yana da nasa albarkatun. Tuni bayan shekaru 3 na aiki na mota, ya zama dole don bincika masu tayar da hankali, dampers da sprockets.
Ya kamata a nemo manyan abubuwan da ke haifar da saurin sa sarka a cikin masu zuwa:
- a cikin maye gurbin mai mai na mota ba tare da bata lokaci ba ko kuma amfani da man da ba na asali ba;
- a cikin rauni mai rauni da aka kafa ta famfon allura;
- a cikin yanayin aiki mara kyau;
- a cikin gyare-gyare mara kyau, da dai sauransu.
Mafi yawan lokuta, sandunansu masu tayar da hankali ko bawul ɗin ƙwallon ƙafa ba ya aiki. Sarkar ta karye saboda coking da samuwar ajiyar mai.
Don ƙayyade lalacewa na sarkar, lokacin da har yanzu yana raunana, yana yiwuwa ta hanyar sautin sauti na injin, wanda aka sani a fili a rago da kuma "sanyi". A kan 4m41, raunin sarka mai rauni zai sa sashin ya shimfiɗa a hankali - hakora za su fara tsalle a kan sprocket.
Duk da haka, alamar da aka fi sani da sarkar sawa akan 4m41 shine sauti mai raɗaɗi da maras ban sha'awa - yana bayyana kansa a gaban sashin wutar lantarki. Wannan amo yayi kama da sautin kunnan man fetur a cikin silinda.
Ƙarfin sarkar da aka rigaya ya riga ya bambanta ba kawai a cikin rago ba, amma har ma a cikin sauri mafi girma. Yin aiki na dogon lokaci na mota tare da irin wannan tuƙi dole ne ya haifar da:
- don tsalle sarkar da ƙwanƙwasa alamun lokaci;
- karyewar hanyar rarraba iskar gas;
- lalacewar piston;
- karya kan Silinda;
- bayyanar gibba a saman silinda.
Buɗaɗɗen kewayawa shine sakamakon kulawa mara lokaci. Wannan yana barazanar sake gyara injin. Sigina don sauyawa na gaggawa na da'ira na iya zama gazawar mai farawa lokacin fara injin ko sabon sautin na'urar farawa wanda ba a nuna ba a baya.
Maye gurbin sarkar da 4m41 dole ne ya nuna sabunta abubuwa da yawa na wajibi (tebur na ƙasa yana ba da jeri).
| Samfur Name | Yawan |
| Tsarin lokaci na ME203085 | 1 |
| Tauraro don camshaft na farko ME190341 | 1 |
| Sprocket don camshaft na biyu ME203099 | 1 |
| Twin crankshaft sprocket ME190556 | 1 |
| Na'ura mai ba da hanya tsakanin hanyoyin sadarwa ME203100 | 1 |
| Tensioner GASKET ME201853 | 1 |
| Takalmin Tensioner ME203833 | 1 |
| Kwanciyar hankali (dogon) ME191029 | 1 |
| Ƙananan saman damper ME203096 | 1 |
| Ƙananan ƙananan damper ME203093 | 1 |
| Maɓallin Camshaft ME200515 | 2 |
| Mai hatimin crankshaft ME202850 | 1 |
TNVD
Babban dalilin rashin aikin famfo mai matsananciyar matsa lamba akan 4m41 shine, kamar yadda aka ambata a sama, rashin ingancin man dizal. Wannan nan da nan yana haifar da canje-canje a cikin gyare-gyare, bayyanar sabon amo da zafi mai zafi. Plungers na iya matsawa kawai. Wannan yakan faru akan 4m41 saboda kutsawar ruwa a cikin rata. Mai shigar da ruwa yana aiki kamar ba tare da man shafawa ba, kuma daga juzu'i yana ɗaga saman, yana zafi sama da cunkoso. Kasancewar danshi a cikin man dizal yana haifar da tsarin lalata na plunger da hannun riga.
Famfutar allurar kuma na iya lalacewa saboda lalacewa na banal. Misali, matsi yana raunana ko wasa yana ƙaruwa a cikin ma'aurata masu motsi. A lokaci guda kuma, an keta madaidaicin matsayin dangi na abubuwan, taurin saman yana canzawa, wanda a hankali abubuwan da ke tattare da carbon suna tarawa.
Wani sanannen rashin aikin famfo mai matsananciyar matsin lamba shine raguwar samar da mai da kuma karuwar rashin daidaito. Wannan yana haifar da lalacewa na nau'i-nau'i na plunger - abubuwa mafi tsada na famfo. Bugu da kari, leashes plunger, bawul masu fitar da ruwa, ƙugiya, da dai sauransu. A sakamakon haka, kayan aikin nozzles suna canzawa, ƙarfin injin da ingancin aiki sun lalace.
Lagin allura kuma nau'in gazawar famfo ne na yau da kullun. Hakanan an bayyana shi ta hanyar lalacewa na sassa da yawa - axis na nadi, gidan turawa, bearings ball, camshaft, da dai sauransu.
bel na janareta
Ɗaya daga cikin manyan dalilan da ya sa bel ɗin mai canzawa ya karye akan 4m41 shine lanƙwasa na shigarwar puley bayan gyara na gaba. Daidaitawar juna ba daidai ba yana haifar da gaskiyar cewa bel ba ya jujjuyawa a cikin madaidaicin baka kuma yana taɓa hanyoyin daban-daban - a sakamakon haka, da sauri ya ƙare kuma ya karye.
Wani dalili na sawa da wuri shine karkatacciyar ƙugiya mai ɗaci. Kuna iya tantance wannan rashin aiki ta alamar bugun kira wanda ke ba ku damar duba bugun.
A kan jirgin saman ja, burrs na iya haifarwa - sagging a cikin nau'i na ɗigon ƙarfe. Ba za a yarda da wannan ba, don haka dole ne a yi ƙasa irin wannan juzu'in.
Ƙunƙarar da ta kasa kuma ita ce sanadin karyewar bel. Ya kamata su juya cikin sauƙi ba tare da bel ba. In ba haka ba, sihiri ne.
Belin da ke shirin karyewa ko zamewa tabbas zai yi busa. Maye gurbin sashi ba tare da duba bearings ba zai yi aiki ba. Sabili da haka, dole ne ka fara gwada aikin su, sannan kawai maye gurbin bel.
Crankshaft kura
Duk da ƙarfin masana'anta, ƙwanƙwasa ƙwanƙwasa yana faɗuwa na tsawon lokaci daga aiki mara kyau ko bayan doguwar nisan mota. Doka ta farko da mai motar da injin 4m41 ya kamata ya tuna shine kada ya juya crankshaft ta juzu'i!
A haƙiƙa, ɗigon ya ƙunshi rabi biyu. Matsanancin nauyi akan wannan kumburi na iya haifar da rushewa cikin sauri. Alamomi - tuƙi na dutse, hasken caji mai kyalkyali, ƙwanƙwasa.
Game da injuna masu camshaft guda biyu
Ana sanya camshafts a cikin injin a cikin shugaban Silinda. Ana kiran wannan ƙirar DOHC - lokacin da camshaft ɗaya ne kawai, sannan SOHC.
Me yasa aka sanya camshafts biyu? Da farko, wannan zane yana haifar da matsalar tuki daga bawuloli da yawa - yana da wuya a yi haka daga camshaft ɗaya. Bugu da ƙari, idan duk nauyin ya faɗi a kan shinge ɗaya, to bazai iya jurewa ba kuma za a yi la'akari da shi da yawa.
Don haka, injunan da ke da camshafts guda biyu (4m41) sun fi dogara, yayin da aka tsawaita rayuwar sashin rarraba. Ana rarraba kaya daidai gwargwado tsakanin ramuka biyu: ɗaya yana motsa bawul ɗin ci, ɗayan kuma yana motsa bawul ɗin shayewa.
Bi da bi, tambaya ta taso, nawa ya kamata a yi amfani da bawuloli? Gaskiyar ita ce, yawancin su na iya inganta cika ɗakin tare da cakuda man fetur-iska. A ka'ida, yana yiwuwa a cika ta hanyar bawul ɗaya, amma zai zama babba, kuma za a yi la'akari da amincinsa. Yawancin bawuloli suna aiki da sauri, buɗe don dogon lokaci, kuma cakuda ya cika silinda gaba ɗaya.
Idan ana nufin amfani da shaft ɗaya, to ana sanya makamai masu linzami ko rockers akan injunan zamani. Wannan tsarin yana haɗa camshaft zuwa bawul(s). Har ila yau, zaɓi, amma zane ya zama mafi rikitarwa, kamar yadda yawancin cikakkun bayanai suka bayyana.
