Iyo piston inoshanda pasi pekushisa kwepamusoro, kudzvanywa kwakanyanya, kumhanya kwakanyanya uye kushomeka kwemafuta. Iyo piston yakanangana neyakakura tembiricha gasi, uye tembiricha yepakarepo inogona kusvika kupfuura 2500K, saka, kupisa kwakanyanya, uye mamiriro ekupisa anopisa akashata kwazvo, saka tembiricha yepiston yakanyanya kwazvo kana ichishanda, kumusoro kwakakwira se600 ~ 700K, uye tembiricha yekugovera haina kuenzana kwazvo; Kumusoro kwepiston kunotakura gasi rakawanda, kunyanya iyo yakanyanya kushanda sitiroko kumanikidza, peturu injini kusvika 3 ~ 5MPa, injini yedhiziri inosvika 6 ~ 9MPa, iyo inoita kuti piston iite, uye inomira basa rekumanikidza parutivi; Iyo pistoni muhumburumbira pahupamhi hwepamusoro (8 ~ 12m / s) inodzokorora kufamba, uye kukurumidza kunogara kuchichinja, iyo inobudisa simba guru reinertial, kuitira kuti piston inoiswa pasi pemutoro mukuru wekuwedzera. Kushanda pasi pemamiriro ezvinhu akaoma kudaro, piston inozokanganisa uye nekukasira kupfeka, uye ichagadzira mamwe mitoro uye kushushikana kwekupisa, uku ichipiswa nemakemikari negasi.
Kuongorora kwepiston ndiko kunyanya kuyerwa kwe siketi dhayamita, piston ring groove kureba uye piston piston chigaro gomba saizi:
① Kusarudzwa kwepiston kunofanirwa kutariswa zvinoenderana nehukuru hwekugadzirisa humburumbira. Kazhinji hukuru hukuru hunotaridzirwa pamusoro pepiston;
② Muchikamu chimwechete chehove, chimiro chepiston hachina kufanana, saka pakusarudza piston, rudzi rwepiston runofananidzwa runofanira kusarudzwa maererano nerudzi rwejini. Painjini imwe chete, piston yemhando imwe chete, boka rimwe chete kana kodhi yezvigadzirwa zvakafanana inofanira kusarudzwa; Iyo piston yemuenzaniso wakafanana inofanira kushandiswa nekodhi yechigadzirwa chimwe chete kuti ive nechokwadi chokuti mutsauko wehupamhi uye hutano hwepiston haupfuuri chiyero chakataurwa nefekitari yepakutanga. Zvikasadaro, zvinokonzeresa kupisa injini, basa rakashata, kuderera kwehupfumi uye simba uye kumwe kutadza. Naizvozvo, pakusarudza piston, inoenderana mhando yepiston inofanira kusarudzwa zvichienderana nerudzi rweinjini.