Masu alluran mai ƙananan kayan wuta ne waɗanda ake amfani da su don isar da mai ta hanyar fesa kai tsaye a cikin nau'in shan da ke gaban bawul ɗin sha a injin dizal. Injectors na man dizal suna da rikitarwa; mai injector yana da matattara mai girma na micron a saman ɓangaren shiga wanda yayi daidai da ƙananan ramukan hypodermic a ƙasa don atomizing na man dizal. Man dizal yana aiki azaman tushen mai ga sassan ciki na injector. Babban tushen gazawar masu allura shine ruwa a cikin mai. Lokacin da ruwa a cikin man fetur ya maye gurbin kayan shafa mai, sassan ciki suna raguwa da sauri kuma allurar gaba ɗaya na iya yin kasawa da sauri.
Injectors wani bangare ne mai mahimmancin injin. Bawul ɗin injector yana buɗewa kuma yana rufewa a rpm ɗaya da injin dizal. Yawan RPM na injunan diesel a Arewacin Amurka yana kusa da 1800. Wannan yayi daidai da kusan sau 140,000 a kowace awa! Baya ga ruwa a cikin man fetur, masu allura suna ƙarƙashin carbon da datti da aka gabatar a cikin naúrar ta hanyar mummuna mai tsabtace iska. Nau'in man fetur, daraja da abubuwan da ake amfani da su kuma suna da tasiri mai mahimmanci akan tsawon rayuwar mai allurar mai. ECM (Engine Control Module) yana sarrafa allurar mai a yawancin injunan diesel na lantarki. Injectors din diesel koyaushe suna da iko lokacin da maɓallin ke kunne ba tare da la'akari da injunan injin ba. ECM yana kunna allurar, yana kammala kewayawa kuma yana haifar da bututun injector ya buɗe. ECM bayan samun bayanai daga na'urori masu sarrafawa daban-daban yana ƙayyade tsawon lokacin da masu yin allurar ke buƙatar ƙasa don allurar madaidaicin adadin man da aka ba da buƙatun fitar da dawakai daga injin.
Tsarin injectors dizal yana buɗewa, rufewa da rarraba daidai adadin mai yana faruwa a cikin millise seconds. An kammala harbe-harbe na sake zagayowar allura a matsakaicin a cikin miliyon 1.5 zuwa 5. Masu allurar man dizal suna zuwa da siffofi da girma dabam-dabam dangane da injin da ake kerawa da samfurin da kuma bukatar wutar lantarki. Injectors na mota sun ɗan ƙanƙanta da aikace-aikacen dizal masu nauyi{5} kuma ana auna su cikin inci kubik. Akwai nau'ikan alluran man dizal iri biyu: na farko ana kiransa allurar jiki inda 1-2 injectors suke a jikin ma'aunin da kanta a cikin injin dizal kuma suna ba da adadin man feshin hazo mai mitoci a cikin mashin ɗin da ake sha. Wannan tsarin isar da kaya da gaske yana cajin abin da ake ci kuma bawul ɗin ci yana jawo mai cikin silinda na injin. Tsarin isar da saƙo na biyu, wanda aka sani da nau'in mai nau'in mai na kowane tashar jiragen ruwa, ya kasance sabo da ingantaccen mai. Nau'in allurar tashar jiragen ruwa ya fi carburetor inganci tunda yana daidaitawa da yawan iska da tsayi kuma baya dogaro da injin da yawa.
Tare da rashin aikin allura mai maƙarƙashiya yana zuwa lokacin da silinda mafi kusa da injectors suna da cakuda mai kyau fiye da waɗanda ke nesa. Tare da nau'in allurar tashar jiragen ruwa ana kawar da wannan aibi ta hanyar allurar adadin man fetur iri ɗaya zuwa kowane silinda a cikin injin.
Yankunan Injector
Kowane injector man ya ɗan bambanta amma duk suna da manyan sassa 15 ciki har da tacewa, zoben jagora, core spring, wurin zama, wurin zama, guntun sandar, tasha, solenoid coil, solenoid body, core zobe, core, spray tip home, director da spray tip. ECM ne ke sarrafa kwararar mai ta hanyar ɗaga ball daga wurin zama. Wannan yana ba da damar man fetur ya gudana ta hanyar wurin zama sannan kuma ya fita ta hanyar kafaffen farantin darakta mai ramuka da yawa. Farantin daraktan yana hidima don jagorantar tsarin feshin mai. Wannan nau'in injector yana da tsarin feshin kusurwa na digiri 10 zuwa 15. Atomization na man fetur na irin wannan nau'in injector yayi kama da nau'in diski na nau'in diski. Nau'in faifai da nau'in ƙwallon ƙwallon ta ƙira da ƙarancin kamuwa da toshewa.
