Iyo throttle ivharuvhu inodzorwa inodzora kuyerera kwemhepo muinjini. Apo gasi inopinda mupombi yekutora, ichasanganiswa ne petroli uye inova musanganiswa unopisa, unopisa uye uite basa. Iyo yakabatana nemhepo sefa, iyo injini block, inozivikanwa sehuro yeinjini yemotokari.
Throttle ina sitiroko peturu injini kazhinji inotaridzika seizvi. Throttle ndechimwe chezvakakosha zvikamu zvemazuva ano emagetsi jekiseni mota injini system. Chikamu chepamusoro payo ndiyo sefa yemhepo, chikamu chezasi ijini cylinder block, uye ndiyo huro yeinjini yemotokari. Iyo yekumhanyisa mota inoshanduka, uye iyo yakasviba throttle ine hukama hukuru, kuchenesa throttle kunogona kuderedza kushandiswa kwemafuta kunogona kuita kuti injini ishanduke uye yakasimba. Iyo throttle haifaniri kubviswa kuti ichenese, asiwo kutarisa kwevaridzi kukurukura zvakawanda