I-Injini yokuhlunga kawoyela isihlungi se-enjini. Umsebenzi wesihlungi se-oyili ye-enjini ukuhlunga ama-sundries, ama-colloids kanye nomswakama ku-oyela enjini bese uletha uwoyela we-clean injini kuzo zonke izingxenye zokuthambisa.
Ukuze unciphise ukumelana nokungqubuzana phakathi kwezingxenye ezihambisanayo ezihambisanayo enjini futhi unciphise ukugqokwa kwezingxenye, i-oyili ihanjiswa ngokuqhubekayo endaweni yokushayela impahla ngayinye yokuthambisa ukuze kwakhiwe i-lubrication. Amafutha enjini ngokwawo aqukethe inani elithile le-gum, ukungcola, umswakama kanye nezithasiselo. Ngasikhathi sinye, ngesikhathi senqubo esebenzayo yenjini, ukwethulwa kwensimbi egqoke imfucumfucu, ukungena kwama-sundries emoyeni noxides oxides kawoyela kancane kancane ukukhulisa ama-sundries emafutheni. Uma uwoyela ungahlungwa futhi ungena ngqo umjikelezo wamafutha wokuthambisa, ama-sundries aqukethwe emafutheni azokwenziwa endaweni yokushayisana, ukusheshisa ukugqokwa kwezingxenye futhi kunciphise impilo yenkonzo yenjini.
Ngenxa yokuvunywa okuphezulu kwamafutha enjini uqobo kanye nokuqukethwe okuphezulu kokungcola ku-oyela enjini, ukuze kuthuthukiswe ukusebenza kahle kwe-filltration, isihlungi samafutha e-Injini ngokuvamile sinamazinga amathathu Umqoqi wokuhlunga ufakiwe epanini lamafutha phambi kwepompo kawoyela futhi ngokuvamile amukele uhlobo lwesikrini sensimbi. Isihlungi samafutha esiyinhloko sifakwa ngemuva kwepompo kawoyela futhi uxhumeke ngochungechunge ngendima enkulu kawoyela. Kubandakanya ikakhulukazi i-Metal Scraper, iSawdust Finger Elemento nePhepha le-Microsorous. Manje iphepha lokuhlunga le-microporous liyasetshenziswa ikakhulukazi. Isihlungi esihle samafutha sifakwe ngemuva kwephampu yamafutha futhi sixhunywe ngokufana ngendima enkulu kawoyela, ikakhulukazi uhlobo lwephepha lokuhlunga lwe-micropororororororous nohlobo lwe-rotor. Uhlobo lwe-rotor uhlobo lokuhlunga oluhle lwe-adoment Centrifugal Filtration ngaphandle kwe-Filture Element, exazulula ngempumelelo ukungqubuzana phakathi kokuhamba kawoyela nokusebenza kahle kwe-filltration.
