Piston Ring (Piston Ring) inoshandiswa kunyudza piston groove mukati memhete yesimbi, piston mhete yakakamurwa kuita marudzi maviri: mhete yekumanikidza uye mhete yemafuta. Mhete yekumanikidza inogona kushandiswa kuvhara gasi rinopisa rinopisa mukamuri rinopisa; Iyo mhete yemafuta inoshandiswa kukwenya mafuta akawandisa kubva muhumburumbira.
Iyo piston mhete imhando yesimbi elastic mhete ine yakakura yekuwedzera deformation, iyo inounganidzwa muprofile uye inoenderana annular groove. Mhete dzepiston dzinodzorera uye dzinotenderera dzinotsamira pamusiyano wekumanikidzwa kwegasi kana mvura kuti igadzire chisimbiso pakati pedenderedzwa rekunze remhete necylinder uye rimwe divi remhete nemhete groove.