Mfundo yake yogwirira ntchito ndi iyi: mota ikayendetsa kompresa yozungulira kuti izizungulira, kudzera pakufalitsa kwa ndodo yolumikizira, pisitoni yokhala ndi mafuta popanda kuwonjezera mafuta aliwonse amasunthira mmbuyo ndi mtsogolo, ndipo voliyumu yogwira yopangidwa ndi khoma lamkati la silinda , mutu wamphamvu ndi pamwamba pa pisitoni zizisintha nthawi ndi nthawi. Pisitoni ya compressor ya pistoni ikayamba kuchoka pamutu wamphamvu, voliyumu yogwira ntchito mu silinda imakula pang'onopang'ono. Pakadali pano, mpweya umakankhira valavu yolowera m'mbali mwa chitoliro cholowera ndikulowa silinda mpaka voliyumu yogwira ikafika pazipita, ndipo valavu yolowera yatsekedwa; Pisitoni ya compressor ya piston ikayenda mbali ina, mphamvu yogwira ntchito mu silinda imachepa ndipo kuthamanga kwa gasi kumawonjezeka. Mphamvu yomwe ili mu silinda ikafika ndikukwera pang'ono kuposa kuthamanga kwa utsi, valavu yotulutsa utsi imatseguka ndipo mpweya umatuluka mu silinda mpaka pisitoniyo ipita kumapeto, valavu yotseka ikatseka. Pisitoni ya compressor ya piston ikasunthanso mbali inayo, zomwe zili pamwambazi zibwereza. Ndiye kuti, crankshaft ya piston compressor imazungulira kamodzi, pisitoni imabwezeretsanso kamodzi, ndipo njira yolowetsa, kukanikiza ndi kutulutsa zimakwaniritsidwa motsatana mu silinda, ndiye kuti ntchito yomalizidwa imamalizidwa. Kapangidwe kazitsulo ka shaft imodzi komanso yamphamvu iwiri imapangitsa kuti mpweya wa kompresa utuluke kawiri kuposa wamphamvu imodzi pamlingo wina wovoteledwa, ndipo wawongoleredwa bwino mukulumikizana ndi phokoso