Pombi yemafuta chinhu chinowanzo shandiswa kutakura zvinwiwa (kazhinji mafuta emvura kana mafuta ekuzora) kubva kune imwe nzvimbo kuenda kune imwe.Iyo ine huwandu hwakasiyana hwekushandisa muminda yakawanda, kusanganisira indasitiri yemotokari, aerospace, indasitiri yekuvaka ngarava uye kugadzirwa kwemaindasitiri, nezvimwe.
Nheyo yekushanda yepombi yemafuta inogona kungotsanangurwa se: kufambisa mvura kubva kune yakaderera-kumanikidza nzvimbo kusvika kune yakakwirira-kumanikidza nzvimbo kuburikidza nekumanikidza kunoitwa ne mechanical movement.Izvi zvinotevera zvinozivisa zvakadzama misimboti yekushanda yemapombi maviri akajairika.
1. Kushanda musimboti wepombi yegiya:
Iyo pombi yegiya yakajairika yakanaka yekusimuka pombi ine maviri magiya meshing pamwe chete.Rimwe giya rinonzi giya rekutyaira uye rimwe rinonzi giya rinofambiswa.Kana giya rekutyaira richitenderera, giya rinofambiswa rinotendererawo.Mvura inopinda mukamuri yepombi nepamukana uri pakati pemagiya uye inosundirwa kunobudapo sezvo magiya anotenderera.Nekuda kwemeshing yemagiya, iyo mvura inotsikirirwa zvishoma nezvishoma mukamuri yepombi uye inosundirwa kunzvimbo yakakwirira-inomanikidza.

2. Kushanda musimboti wepombi yepiston
Pombi yepiston ipombi inoshandisa piston kudzorera mukamuri yepombi kusunda mvura.Inosanganisira imwe kana kupfuura pistons, silinda uye mavharuvhu.Apo piston inofamba ichienda mberi, kumanikidzwa muimba yepombi kunoderera uye mvura inopinda mukamuri yepombi kuburikidza nevhavha yemhepo inopinza.Sezvo piston inofamba ichidzokera kumashure, vharuvhu yekupinda inovhara, kumanikidza kunowedzera, uye mvura inosundirwa yakananga kunobuda.Ivhavha yekubuda inobva yavhura uye mvura inosunungurwa munzvimbo yakakwirira yekumanikidza.Kudzokorora nzira iyi, mvura yacho icharamba ichitakurwa kubva panzvimbo yakaderera kusvika kune yakakwirira.
Misimboti yekushanda yeaya mapombi maviri emafuta akavakirwa pamusiyano wekumanikidza wemvura kuti uwane kufambisa kwemvura.Kuburikidza nekufamba kwemidziyo yemuchina, iyo mvura inomanikidzwa kana kusundirwa, nekudaro ichigadzira imwe kudzvanywa, ichibvumira iyo mvura kuyerera.Mapombi emafuta anowanzo kuve nemuviri wepombi, kamuri yepombi, mudziyo wekutyaira, mavharuvhu uye zvimwe zvikamu zvekuona kufambisa uye kutonga kwezvinwiwa.