Isici sesihlungi samafutha enjini yisihlungi samafutha enjini. Umsebenzi wesihlungi samafutha enjini ukuhlunga izinhlobo ezahlukene zokomisa, ama-colloid kanye nomswakama kumafutha enjini bese uletha uwoyela wenjini ohlanzekile kuzo zonke izingxenye zokugcoba.
Ukuze kuncishiswe ukumelana kokungqubuzana phakathi kwezingxenye ezihambayo enjinini futhi kuncishiswe ukuguguleka kwezingxenye, uwoyela uthuthwa njalo uye endaweni yokungqubuzana yengxenye ngayinye ehambayo ukuze kwakheke ifilimu yamafutha okugcoba ukuze kugcotshwe. Uwoyela wenjini ngokwawo uqukethe inani elithile le-gum, ukungcola, umswakama kanye nezithasiselo. Ngesikhathi esifanayo, ngesikhathi senqubo yokusebenza kwenjini, ukufakwa kwemfucumfucu yokuguguleka kwensimbi, ukungena kwezinhlobo ezahlukene zezinsimbi emoyeni kanye nokukhiqizwa kwama-okside kawoyela kukhulisa kancane kancane izinhlobo ezahlukene zezinsimbi emafutheni. Uma uwoyela ungahlungiwe futhi ungena ngqo kumjikelezo wamafutha okugcoba, izinhlobo ezahlukene zezinsimbi ezikuwoyela zizolethwa endaweni yokungqubuzana kwezingxenye ezihambayo, kusheshiswe ukuguguleka kwezingxenye futhi kuncishiswe impilo yenkonzo yenjini.
Ngenxa yobuningi obukhulu bamafutha enjini kanye nokuqukethwe okuphezulu kokungcola kumafutha enjini, ukuze kuthuthukiswe ukusebenza kahle kokuhlunga, isihlungi samafutha enjini ngokuvamile sinamazinga amathathu: isiqoqi samafutha enjini, isihlungi esiyinhloko samafutha enjini kanye nesihlungi sesibili samafutha enjini. Isiqoqi samafutha sifakwa epanini lamafutha phambi kwepompo yamafutha futhi ngokuvamile samukela uhlobo lwesikrini sesihlungi sensimbi. Isihlungi samafutha esiyinhloko sifakwe ngemuva kwepompo yamafutha futhi sixhunywe ngokulandelana nephaseji eliyinhloko lamafutha. Sihlanganisa kakhulu i-metal scraper, i-sawdust filter element kanye nephepha lesihlungi le-microporous. Manje iphepha lesihlungi le-microporous lisetshenziswa kakhulu. Isihlungi samafutha esicwebezelayo sifakwe ngemuva kwephaseji lamafutha futhi sixhunywe ngokuhambisana nephaseji eliyinhloko lamafutha, ikakhulukazi kufaka phakathi uhlobo lwephepha lesihlungi le-microporous kanye nohlobo lwe-rotor. Isihlungi samafutha esicwebezelayo sohlobo lwe-rotor sisebenzisa ukuhlunga kwe-centrifugal ngaphandle kwe-element yesihlungi, okuxazulula ngempumelelo ukuphikisana phakathi kokuthuthwa kwamafutha kanye nokusebenza kahle kokuhlunga.
