Da farko, zoben iska. Gas zoben kai tsaye yana tuntuɓar iskar gas mai ƙonewa tare da babban zafin jiki da matsa lamba, kuma zafin jiki yana da girma sosai yayin aiki. Gas mai zafi da zafi mai zafi yana shiga ramin zoben piston daga ratar da ke tsakanin bangon Silinda da fistan, kuma ya ci karo da man injin da aka kawo ta hanyar bugun zoben piston, wanda zai sa mai ya yi coke kuma ya yi amfani da shi. ƙarfafa; Bugu da kari, lokacin da injin ya tsaya, allurar ta karshe Ba a kone man da aka yi wa dakin konewa, kuma a karkashin aikin sauran zafin jiki na piston, zai kuma yi coke da karfafawa, kuma daga karshe za a samar da ma'aunin carbon. ajiye a cikin piston zobe tsagi. Wannan shine ka'idar samuwar iskar gas zoben carbon jijiya. Sai kawai a cikin zoben iska, man injin ɗin da aka kawo ta hanyar aikin famfo na zoben piston kadan ne, kuma mafi yawansa ajiyar carbon ne da ba a cika konewar mai ba. Wato galibin abubuwan da ake ajiyewa a kan zoben iskar gas suna faruwa ne ta hanyar man fetur, kuma inganci da yanayin konewa na man fetur yana shafar yawa da yanayin ajiyar carbon.

Zoben fistan koyaushe yana motsawa sama da ƙasa a cikin tsagi na zoben piston, kuma silinda ba madauwari ba ce. Fistan yana ramawa sama da ƙasa a cikin silinda, kuma zoben piston koyaushe yana matsawa kuma yana shimfiɗawa. Adadin Carbon, ana matse shi akai-akai, ba za a iya riƙe shi ba, ajiyar carbon ɗin da ke cikin tazarar baya kawai zai iya zama. A takaice dai, abubuwan da ake ajiyewa na carbon suna barin gefe ɗaya ne kawai na zoben iska, kuma ba zai yuwu a kulle zoben iska har ya mutu ba, kuma ba zai yiwu a sa injin ya ƙone mai ba. A lokaci guda, ana ajiye ajiyar carbon a cikin rata na baya, wanda da gangan ya rage ratar baya, amma zai iya ƙarfafa hatimi kuma ya rage tasirin famfo.