Injector mai a China 0445115062 Diesel Feel Injector 0 445 115 062 don Bosch

Tsarin injin dizal yana canza makamashin zafi zuwa makamashin injina yana samuwa ta hanyar matakai guda huɗu masu ci gaba: ci, matsawa, aiki da shayewa. Kowane irin wannan tsari ana kiransa zagayen aiki. Duk injin da ya kammala zagayowar aiki ta hanyar jujjuya crankshaft sau biyu da maimaita piston sau huɗu ana kiransa injin bugun bugun jini huɗu. Ka'idar aiki na injin dizal mai bugun bugun jini:

1. shan shanyewar jiki

Ƙaƙwalwar ƙwanƙwasa tana motsa fistan don motsawa daga tsakiyar matattu zuwa tsakiyar mataccen ƙasa. A wannan lokacin, bawul ɗin ci yana buɗe kuma an rufe bawul ɗin shayewa. A lokacin motsi na fistan, ƙarar silinda a hankali yana ƙaruwa, yana samar da sarari, don haka ana tsotse cakuda mai ƙonewa a cikin silinda ta hanyar bawul ɗin ci har sai fistan ya isa wurin matattu na ƙasa kuma an rufe bawul ɗin ci.

Saboda juriya na ci na tsarin ci, matsa lamba na iskar gas a cikin silinda a ƙarshen cin abinci ya fi ƙasa da matsa lamba na yanayi, game da 0.075MPa ~ 0.09MPa. Saboda dumama na high-zazzabi sassa kamar Silinda bango da piston da high-zazzabi saura shaye gas bar a baya sake zagayowar, da gas zafin jiki tashi zuwa 370K ~ 440K. Abin da ke shiga cikin silinda a lokacin shanyewar sha ba abu ne mai ƙonewa ba, amma iska mai tsabta.

2. Matsi bugun jini

A ƙarshen bugun bugun jini, piston yana motsawa daga ƙasa matattu cibiyar zuwa saman mataccen cibiyar da crankshaft ke motsawa, kuma ƙarar silinda tana raguwa a hankali. A wannan lokacin, ana rufe bawul ɗin sha da shaye-shaye, kuma ana matsar da iska mai tsabta. Matsi yana ƙarewa lokacin da fistan ya isa tsakiyar matattu. A yayin aiwatar da matsawa, matsa lamba gas da zafin jiki suna ƙaruwa a lokaci guda, kuma ana ƙara cakuda cakuda. Tun da matsawa rabo na dizal ne babba, game da 15 zuwa 22, da zazzabi da kuma matsa lamba a karshen matsawa ne in mun gwada da high, matsa lamba iya isa 3MPa zuwa 5MPa, da kuma zazzabi iya isa 800K zuwa 1000K.

3. bugun jini

A karshen bugun jini na matsawa, famfon allurar mai yana fesa dizal mai tsananin ƙarfi a cikin iska mai zafi da iska mai ƙarfi a cikin silinda ta cikin injector a cikin nau'in hazo, wanda da sauri ya vaporized kuma ya samar da cakuda tare da iska. Tun da zafin jiki a cikin Silinda ya fi zafin wuta ta atomatik na dizal (kimanin 500K), cakuda dizal nan da nan ya ƙone kuma ya ƙone da kansa, kuma na ɗan lokaci bayan haka, matsa lamba da zafin jiki a cikin silinda suna tashi sosai yayin allura. man fetur, tura piston zuwa ƙasa don yin aiki. Yayin bugun wutar lantarki, matsa lamba na gaggawa na iya kaiwa 5MPa ~ 10MPa, kuma zafin jiki na gaggawa zai iya kaiwa 1800K ~ 2200K.

4. Shanyewar shanyewar jiki

Lokacin da bugun wutar lantarki yana kusa da ƙarshen, bawul ɗin shayewa yana buɗewa, bawul ɗin ci yana rufewa, kuma crankshaft yana tura piston daga cibiyar matattu zuwa babban mataccen cibiyar ta hanyar haɗin haɗin gwiwa. Ana fitar da iskar iskar gas daga silinda a ƙarƙashin ragowar matsi da tura piston. Lokacin da fistan ya kai saman matattu cibiyar, da shaye bawul rufe da shaye ƙare. Domin akwai juriya na shaye-shaye a cikin tsarin shaye-shaye, a ƙarshen shaye-shaye, matsa lamba a cikin silinda ya ɗan fi ƙarfin yanayin yanayi, game da 0.105MPa ~ 0.115MPa, kuma zafin jiki yana kusan 900K ~ 1200K.

Daga cikin bugun jini guda hudu, bugun wutar lantarki ne kawai ke haifar da wuta, sauran bugun ukun kuma su ne bugun jini na taimako don shirya bugun wutar lantarki, kuma dukkansu suna cin makamashi. A cikin zagayowar farko lokacin da injin ya fara, dole ne a sami ƙarfin waje don juya crankshaft don kammala ci da bugun jini. Lokacin da bugun wutar lantarki ya fara, ana adana ƙarfin aiki a cikin jirgin sama ta hanyar crankshaft don kula da ci gaba da hawan keke na gaba.