Kwi-carburetor okanye i-threttle yomzimba ye-petroli ineenja, i-suble i-sundold ibhekisa kumgca wokutya ukusuka ngasemva kwe-carburetor okanye umzimba we-threttle ukuya phambi kwentloko yesilinda. Umsebenzi wayo kukusasaza umxube womoya kunye nomxube wesilinda kwisilinda nganye ye-cylinder ngu-carburetor okanye umzimba wekratshi.
Kwiinjini ze-oirway i-challion intsholongwane okanye iinjini zedizili, ukuthambisa izihlandlo ezininzi zisasaza umoya ococekileyo kwi-cylindter nganye. I-subload i-sundold kufuneka isasaze umxube womoya, umxube we-piel okanye umoya ococekileyo ngokulinganayo kwi-cylinder nganye. Ukulungiselela le njongo, ubude bendawo yegesi kwindawo yokuthatha izithuba kufuneka zibe nokulingana kangangoko kunokwenzeka. Ukwenzela ukunciphisa ukunganyangeki kwegesi kunye nokuphucula amandla, udonga lwangaphakathi lwezinto ezingenayo kufuneka zigudile.
Ngaphambi kokuba sithethe malunga ne-sundold yam, masicinge ngendlela umoya ongena kwi-injini. Kwintshayelelo kwi-injini, sikhankanye umsebenzi wepiston kwisilinda. Xa i-injini ikwindawo yokuthambisa, ipiston ihamba phantsi ukuze ivelise i-vacuum kwisilinda (oko kukuthi, uxinzelelo luba luncinci), ukuze uxinzelelo lube lincinci), ukuze umoya ungenise isilinda. Umzekelo, unikwe inaliti, kwaye uyibonile indlela afumana ngayo iyeza kwisirinji. Ukuba i-Barlele yenaliti yinjini, emva koko xa ipiston ngaphakathi kwe-barrel itsaliwe, i-potion iya kuthathwa kwi-Innele Barle, kwaye injini kukutsala umoya kwisilinda.
Ngenxa yeqondo lokushisa eliphantsi lokuthatha ukuqatha, izinto ezihlanganisiweyo zibe yindawo ethandwayo ethandwayo. Ubunzima bokukhanya kwayo bugudileyo ngaphakathi, nto leyo inokunciphisa ngokufanelekileyo ukuchasana nokongeza ukusebenza ngokutya.
