Iimpompo zomlilo ziyinxalenye ebalulekileyo yeenkqubo zokukhusela umlilo, kwaye ukukhetha uhlobo oluchanekileyo luchaphazela ngokuthe ngqo ukuphendula okungxamisekileyo kunye nokhuseleko. Ukuqonda amahlelo angundoqo kunye nemeko yawo-izinto eziluncedo ezithile ngundoqo ekwenzeni isigqibo esinolwazi.
Ekuqaleni,ngohlobo lokuqhuba, iimpompo zomlilo zahlulwe zaba yimifuziselo yombane kunye nedizili{0}}eqhutywayo. Iimpompo zomlilo zombane zixhomekeke kumbane wegrid, zibonelela ngokusebenza okuzinzile, ingxolo ephantsi, kunye nokugcinwa lula-ezilungele iindawo zorhwebo,{3}}neendawo zokuhlala eziphezulu, kunye nezibhedlele ezinombane othembekileyo. Iimpompo zomlilo eziqhutywa nge-diesel{5}, nangona kunjalo, zinemithombo yombane ezimeleyo, eqinisekisa ukusebenza naxa ucima umbane, nto leyo ezenza zibe yimfuneko kwiziza zemizi-mveliso ezikude, izakhiwo zasemaphandleni, okanye iindawo ezithanda ukucima.
Isibini,ngokwesakhiwo, iindidi ezimbini eziphambili ziyi-centrifugal kunye neepompo zokufuduka ezilungileyo. Iimpompo zomlilo ze-Centrifugal zezona zisetyenziswa kakhulu, amandla ajikelezayo ajikelezayo ukuvelisa uxinzelelo oluphezulu kunye namazinga amakhulu okuhamba. Zifanelekile kwizakhiwo eziphakamileyo-eziphakamileyo, iindawo zokuthenga, kunye nemizi-mveliso emikhulu efuna ukuhanjiswa kwamanzi{3}kude okanye intloko ephezulu (uxinzelelo lwamanzi). Iimpompo zokufuduka ezifanelekileyo, ezibandakanya ipiston kunye neentlobo zegiya, zihambisa ukuhamba okungaguqukiyo ngaphandle kotshintsho loxinzelelo, zifanele iimeko ezincinci-ezinje ngeegaraji ezingaphantsi komhlaba, iindawo zokugcina ezincinci, okanye iindawo ezinemfuno ephantsi yamanzi kodwa iimfuno ezingqongqo zozinzo loxinzelelo.
Ukongeza, iintlobo ezikhethekileyo zibonelela ngeemfuno ezizodwa:iimpompo zobungqina bomlilo ezidubulayo{{0}(ezineenjini ezitywiniweyo kunye nokudleka{0}}izinto ezinganyangekiyo) zinyanzelekile kwizityalo zekhemikhali, iindawo zokuhluza i-oyile, kunye nezinye iimeko ezingqongileyo ezinokutsha;iimpompo zomlilo ezingaphantsi kwamanziziyilelwe ukufakela ngaphantsi kwamanzi, zilungele amagumbi angaphantsi okanye iindawo ezithanda ukukhukula; kwayeiimpompo zomlilo eziphantsi-zengxolo(ixhotyiswe ngesandi sokugquma kunye nokungcangcazela-izinto zokumanzisa) ilingana ingxolo{1}}neendawo ezinobuzaza njengezibhedlele, iihotele, kunye nezakhiwo zokuhlala.
Ukukhetha ngobulumko, beka phambili izinto ezintathu: ukuthembeka kombane kwindawo yakho (kumisela umbane xa uthelekiswa nedizili), imfuno yamanzi (umlinganiselo wokuhamba kunye neemfuneko zentloko), kunye neemeko zokusingqongileyo (umz., ukutsha, izithintelo zengxolo). Ukufanisa uhlobo lwempompo kwezi mfuno kuqinisekisa ukusebenza kakuhle xa ugwayimbo olungxamisekileyo.