Mhete yepistoni inopindirana nepiston mucylinder, iyo inokonzera kunze kwekushanda kwepamusoro pemhete yepiston kupfeka, kupenya kweradial yemhete kunoderera, uye mukaha pakati pemazaru ekushanda episton mhete inowedzera; Iyo yepasi yekupedzisira yepamusoro yakapfekwa, iyo axial kureba kwemhete inoderera, uye gaka pakati pemhete nemhete groove, ndiko kuti, kuputika kwendege kunowedzera. Kazhinji, chiyero chekupfeka chepiston mhete chiri mukati me 0.1-0.5mm/1000h kana injini yedhiziri ichimhanya zvakajairika, uye hupenyu hwepiston mhete kazhinji 8000-10000h. Iyo mhete yepiston inowanzopfekwa inopfeka zvakaenzana munzira inotenderera uye ichiri yakanyatsobatanidzwa pamadziro ecylinder, saka mhete yepiston inowanzopfekwa ichine chisimbiso. Asi kutaura zvazviri, nzvimbo yekushanda yedenderedzwa rekunze remhete yepiston inowanzopfekwa zvisina kuenzana.
Usati wayera mukaha pakati pepiston ring ring, ① bvisa piston mucylinder, bvisa rin'i yepiston wochenesa mhete yepiston necylinder liner. ② Isa zvindori zvepiston parin'i yepiston muchikamu chisinganyanyi kupfekwa chezasi checylinder liner kana iyo isina kupfeka chikamu chepamusoro checylinder liner maererano nehurongwa hwepiston mhete papiston, uye chengeta. piston inorira munzvimbo yakachinjika.
③ Shandisa jeji yekunzwa kuyera kuvhurika kwepiston mhete imwe neimwe. ④ Enzanisa iyo yakayerwa yekuvhura gap kukosha neiyo yakatarwa kana chiyero. Kana kukosha kwekubvumidzwa kwemuganho kwadarika, zvinoreva kuti kunze kwemhete yepiston yakapfekwa zvakanyanya uye inofanira kutsiviwa neitsva. Zvinowanzodiwa kuti piston ring yekuvhura clearance value ihombe kupfuura kana yakaenzana negungano clearance uye ishoma pane yekubvumidzwa. Ziva kuti kana gomba rekuvhura riri diki zvakanyanya, harigone kugadziriswa nekuisa piston mhete yekuvhura.
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