1. Simba
Masimba anobata pachindori chepiston anosanganisira kumanikidzwa kwegasi, simba re elastic remhete pachayo, simba risina simba rekudzoka kwemhete, simba rekukwevera pakati pemhete necylinder uye groove yemhete, sezvinoratidzwa mumufananidzo. Nekuda kwemasimba aya, mhete inoburitsa mafambiro ekutanga senge axial movement, radial movement, uye kutenderera kwekufamba. Pamusoro pezvo, nekuda kwehunhu hwayo hwekufamba, pamwe nekufamba kusingaite, mhete yepiston inoratidzika kunge ichiyangarara uye axial vibration, radial irregular movement uye vibration, kumonyorora kufamba kunokonzerwa neaxial irregular movement. Aya mafambiro asina kujairika anowanzo kudzivirira mhete yepiston kuti isashande. Paunenge uchigadzira mhete yepiston, zvinodikanwa kuti upe kutamba kwakazara kune yakanaka mafambiro uye kudzora iyo isina kunaka divi.

2. Thermal conductivity
Kupisa kwakanyanya kunokonzerwa nekupisa kunoendeswa kumadziro ecylinder kuburikidza nemhete yepiston, saka inogona kutonhodza piston. Kupisa kwakanyura kumadziro ecylinder kuburikidza nemhete yepiston kazhinji kunogona kusvika 30-40% yekupisa kunotorwa nepamusoro pepiston.

3. Air tightness
Basa rekutanga remhete yepiston kuchengetedza chisimbiso pakati pepiston uye cylinder madziro, uye kudzora kubuda kwemhepo kusvika kushoma. Iri basa rinonyanya kutakurwa nemhete yegesi, ndiko kuti, kubuda kwemhepo yakamanikidzwa uye gasi rejini kunofanirwa kudzorwa kusvika padiki pasi pemamiriro ese ekushanda kuti avandudze mashandiro emafuta; kudzivirira humburumbira nepiston kana silinda nemhete kubva pakukonzerwa nekubuda kwemhepo Kubatwa; kudzivirira kusashanda kunokonzerwa nekuora kwemafuta ekuzora.

4. Kudzora mafuta
Chechipiri basa remhete yepiston ndeyekukwenya zvakanaka mafuta ekuzora akasungirirwa pamadziro ecylinder uye kuchengetedza kushandiswa kwemafuta kwakajairwa. Kana kupihwa kwemafuta ekuzora kwakawandisa, inoyamwa mukamuri yekupisa, iyo inowedzera kushandiswa kwemafuta, uye iyo kabhoni dhipoziti inogadzirwa nekupisa ichava nechakaipa chakashata pakuita kweinjini.

5. Kutsigira
Nekuti piston idiki zvishoma pane dhayamita yemukati yecylinder, kana pasina piston mhete, piston haina kugadzikana mucylinder uye haigone kufamba zvakasununguka. Panguva imwecheteyo, mhete inofanira kudzivirira piston kubva pakubata zvakananga cylinder, uye kutamba basa rinotsigira. Naizvozvo, mhete yepiston inofamba ichikwira nekudzika muhumburumbira, uye nzvimbo yayo inotsvedza inotakurwa zvizere nemhete.