I-throttle iyi-valve elawulwayo elawula ukugeleza komoya enjinini. Lapho igesi ingena epayipini lokungenisa, izohlanganiswa nophethiloli futhi ibe ingxube evuthayo, ezoshisa futhi yenze umsebenzi. Ixhunywe kusihlungi somoya, ibhulokhi yenjini, eyaziwa ngokuthi umphimbo wenjini yemoto.
Izinjini zikaphethiloli ezine zestroke ngokuvamile zibukeka kanje. I-Throttle ingenye yezingxenye ezibaluleke kakhulu zesistimu yenjini yemoto yomjovo kagesi yanamuhla. Ingxenye yawo engenhla isisefo somoya, ingxenye engezansi yi-cylinder block yenjini, futhi ingumphimbo wenjini yemoto. Ukusheshisa imoto kuyavumelana nezimo, futhi i-throttle engcolile inobudlelwane obuhle, ukuhlanzwa kwe-throttle kunganciphisa ukusetshenziswa kukaphethiloli kungenza injini iguquguquke futhi iqine. I-throttle akufanele isuswe ukuze ihlanzeke, kodwa futhi ukugxila kwabanikazi ukuxoxa kabanzi
