Chopopera mpweya chimakhala ndi zigawo zisanu ndi chimodzi izi: mota, fyuluta ya mpweya, thupi la chopopera mpweya, chipinda cha mpweya, maziko (ndi thanki yamafuta), nozzle yothira madzi. Chopopera mpweya chimadalira ntchito yosiyana ya rotor yozungulira mu silinda, ndipo kusintha kwa voliyumu pakati pa masamba omwe ali mu rotor slot kudzalowa, kufinya ndi kutulutsa mpweya. Pakugwira ntchito, kusiyana kwa kuthamanga kwa chopopera mpweya kumagwiritsidwa ntchito kutumiza mafuta okha ku nozzle yothira madzi, kulowetsa mu silinda kuti achepetse kukangana ndi phokoso, pomwe kusunga mpweya mu silinda sikubwerera, zopopera zotere zimatchedwanso zopopera zothira madzi.
