Umsebenzi we-piston ring uquka ukutywinwa, ukulawula ioli (ulawulo lweoli), ukuqhuba ukushisa (ukudluliselwa kobushushu), isikhokelo (inkxaso) iindima ezine. Ukutywinwa: kubhekiselele kwigesi yokutywina, musa ukuvumela igumbi lokutshisa igesi evuzayo kwi-crankcase, ukuvuza kwegesi kulawulwa ubuncinane, kuphucula ukusebenza kakuhle kwe-thermal. Ukuvuza komoya akuyi kunciphisa kuphela amandla e-injini, kodwa kwakhona kwenza ukuwohloka kweoli, owona msebenzi uphambili wendandatho yegesi; Lungisa ioyile (ulawulo lweoyile) : Ioyile yokuthambisa egqithileyo eludongeni lwesilinda ichithwe, kwaye udonga lwesilinda lugqunywe ngefilimu yeoli encinci ukuqinisekisa ukuthambisa okuqhelekileyo kwecylinder kunye nepiston kunye neringi, owona msebenzi uphambili iringi yeoli. Kwiinjini zanamhlanje zesantya esiphezulu, ingqwalasela ekhethekileyo ihlawulwa kwindima yefilimu ye-oyile yokulawula i-piston; Ukuqhutyelwa kokushisa: ukushisa kwepiston kudluliselwa kwi-cylinder liner ngokusebenzisa i-piston ring, oko kukuthi, umphumo wokupholisa. Ngokutsho kwedatha ethembekileyo, i-70 ~ 80% yobushushu obufunyenwe yi-piston top of the piston engapholiswanga ihlakazwa ngendandatho yepiston kudonga lwesilinda, kwaye i-30 ~ 40% yepiston yokupholisa ihlakazwe ngeringi yepiston ukuya kwi-cylinder. udonga; Inkxaso: Iringi yepiston igcina ipiston kwi-cylinder, inqanda ukudibana ngokuthe ngqo phakathi kwepiston kunye nodonga lwesilinda, iqinisekisa ukuhamba kakuhle kwepiston, inciphisa ukuxhathisa ukukhuhlana, kwaye inqanda ipiston ekubetheni i-cylinder. Ngokubanzi, ipiston ye-injini yepetroli isebenzisa amakhonkco amabini erhasi kunye neringi yeoli enye, ngelixa injini yedizili ihlala isebenzisa amakhonkco e-oyile amabini kunye neringi yerhasi enye.