Ukuhlukaniswa ngesakhiwo sesakhiwo phezulu kwepiston
① Iphistoni eliphezulu eliyisicaba: lilungele igumbi lomlilo langaphambilini lenjini ye-carburetor kanye negumbi elivuthayo le-turbocurrent lenjini yedizili.Inzuzo kulula ukuyikhiqiza, ukusabalalisa kokushisa okuphezulu kwamabhere afanayo, kanye nekhwalithi yepiston encane.
② i-concave top piston: ingathuthukisa ingxubevange ye-liquidity nokusebenza komlilo wedizili noma izinjini ezithile zikaphethiloli.Inzuzo iwukushintsha kalula isilinganiso sokuminyanisa nokuma kwegumbi lomlilo.
③ i-convex top piston: ukuze kuthuthukiswe isilinganiso sokucindezela, ngokuvamile ilungele izinjini ezinamandla aphansi.

Ngokwesakhiwo sesiketi
① i-skirt slot piston: ifanele izinjini ezinobubanzi obuncane besilinda kanye nomfutho wegesi ophansi.Inhloso ye-slot ukugwema ukunwetshwa, okwaziwa nangokuthi i-piston enwebekayo.
② isiketi sepiston esingavaliwe: sisetshenziswa kakhulu ezinjinini zamaloli amakhulu amathani.Eyaziwa nangokuthi ipiston eqinile.

Ukuhlukaniswa ngephinikhodi ye-piston
① ipiston lapho i-axis yesihlalo sephini inqamula i-axis ye-piston.
② iphinikhodi yesihlalo se-axis perpendicular to piston axis.