(1) Piston uye piston ring ring leakage kukanganisa maitiro

Iko kukwana pakati pepiston uye cylinder wall clearance kune hukama zvakananga nemhando yekuchengetedza injini uye hupenyu hwesevhisi. Panguva yekugadzirisa nekuongorora injini, isa piston yakatarisa pasi muhumburumbira, uye isa geji yehukobvu hwakakodzera nehurefu muhumburumbira panguva imwe chete. Kana kudzvanywa kweparutivi kunoshandiswa, cylinder madziro uye piston zvinoenderana nekukanda kwepiston. Shandisa chitubu chikero kudzvanya kudhirowa simba kuti Zvakakodzera kuvhomora geji ukobvu zvinyoronyoro, kana kutanga kuyera dhayamita yepiston siketi nekunze micrometer, wobva wayera humburumbira dhayamita necylinder bore geji. Humburumbira yakabereka minus yekunze dhayamita yepiston siketi ndiyo yakakodzera clearance.

(2) Kuongororwa uye kugadzirisa kwepiston uye piston mhete inodonha

Isa ring yepiston yakafuratira mucylinder, sunda ring ring nepiston yekare (kana uchichinja ring kuti igadziriswe zvidiki, isundidzire painoenda neinoenda kwainoenda kwakadzikira), woyera gaka rekuvhura nekukora. gauge. Kana mukaha wekuvhura uri diki zvakanyanya, shandisa yakanaka faira kufaira zvishoma panovhura. Kuongororwa kazhinji kunofanira kuitwa panguva yekugadzirisa faira kudzivirira kuvhura kubva pakunyanya kukura, uye kuvhura kunofanira kunge kwakatsetseka. Kana kuvhurwa kwemhete kwakavharwa kuongororwa, hapafanirwe kuve nekutsauka; iyo yakadhindwa yekupedzisira inofanira kunge isina maburrs. Tarisa kumashure, isa rin'i yepiston mugoro remhete uye tenderera, woyera gap negeji yekukora pasina kuburitsa pini. Kana iyo clearance iri diki, isa rin'i yepiston paplate furati yakavharwa nemucheka we emery kana ndiro yegirazi yakavharwa nejecha vharafu uye ukuye mutete. Tarisa kumashure uye uise mhete yepiston mugororo remhete, mhete yakadzikira pane groove bank, zvikasadaro ring groove inofanira kuchinjirwa panzvimbo yakakodzera.