Izinhlobo zama-injection Izijovo ezijwayelekile zingahlukaniswa ngezigaba ezimbili: izijovo ezijwayelekile zezinaliti kanye nezijovo ezijwayelekile ze-orifice. Phakathi kwawo, ama-injection e-pivot ajwayelekile afaka ama-injector ajwayelekile we-pivot ochungechungeni kanye nama-injection ajwayelekile we-pivot ochungechunge lwe-T. Ama-pivots ochungechunge lwe-S asetshenziswa kakhulu ukulungisa iphutha amaphampu omjovo kaphethiloli wenjini yamandla amancane namaphakathi, ama-pivots ochungechunge lwe-T asetshenziselwa ukulungisa amaphampu omjovo wenjini yamandla aphezulu (njengamaphampu kawoyela enjini yasolwandle/yesitimela); Inkampani yaseJalimane i-BOSCH inezinhlobonhlobo zezijovo ezijwayelekile ze-orifice, ezifanele ukulungisa amaphutha ezinhlobo ezahlukene zamaphampu omjovo kaphethiloli. Njengamanje, izijovo ezijwayelekile zezwe lami zibandakanya izijovo ezijwayelekile ze-inertia orifice ezijwayelekile kanye nezijovo ezijwayelekile ze-orifice. Ngokuthuthukiswa kwamaphampu omjovo kaphethiloli, izijovo zikaphethiloli ezisezingeni eliphansi ze-inertia orifice nazo zisetshenziswa kabanzi. Amaphampu omjovo kaphethiloli ohlobo lwe-T asedume kakhulu ezweni lethu. I-low inertia orifice standard fuel injection isetshenziselwa ukulungisa lolu hlobo lwephampu yomjovo kaphethiloli, engaxazulula kahle izinkinga ezenzeke lapho kulungiswa lolu hlobo lwephampu yomjovo kaphethiloli esikhathini esidlule. Isibonelo: kunzima ukulungisa ukufana kwe-cylinder ngayinye, futhi kunzima ukucabangela ukufana kwejubane elilinganiselwe, isivinini esiphezulu se-torque, isivinini sokungenzi lutho, njll.