Cummins Injini chikamu Injini Piston 4095489/4089357/4095490 yeCummins QSK23 Injini

Chimiro uye nheyo yekushanda yepiston

Iyo yese piston inogona kukamurwa kuita zvikamu zvitatu: piston korona, musoro wepiston uye piston siketi.

Basa guru repiston nderekumira nekupisa kwesimba mucylinder uye kuendesa simba iri ku crankshaft kuburikidza nepiston pin uye yekubatanidza tsvimbo.Mukuwedzera, iyo piston inoumba kamuri inopisa pamwe chete nemusoro we silinda uye cylinder madziro.

Korona yepiston inhengo yekamuri yekupisa, saka inowanzoitwa maumbirwo akasiyana.Kunyanya, iyo peturu injini piston inotora pamusoro yakati sandara kana concave pamusoro kuitira kuti imba yekupisa iite compact muchimiro, diki munzvimbo yekupisa kupisa, uye iri nyore mukugadzira maitiro.Convex pistons anowanzo shandiswa mumainjini maviri-anorova peturu.Iyo korona yepiston yeinjini yedhiziri inowanzogadzirwa nemakomba akasiyana.

Musoro wepiston chikamu chiri pamusoro pechigaro chepiston.Musoro wepiston wakashongedzerwa nemhete yepiston kudzivirira kutonhora kwepamusoro uye gasi rinomanikidza kubva pakupinda mu crankcase, uye panguva imwechete kudzivirira mafuta kupinda mukamuri rinopisa;yakawanda yekupisa inobatwa nepamusoro pepiston inopfuurawo nepamusoro pepiston musoro Chikamu chinopfuudzwa kune cylinder, ndokuzopfuura kuburikidza nepakati inotonhorera.

Zvese zvikamu pazasi pepiston ring groove zvinodaidzwa kuti piston siketi.Basa rayo ndere kutungamira piston kuti idzorere muhumburumbira uye kutakura kumanikidzwa kwedivi.Kana injini iri kushanda, piston inokotama uye nekuremara nekuda kwekumanikidza kwegasi muhumburumbira.Mushure mekunge piston yapisa, pane simbi yakawanda papiston, saka kuwedzera kwayo kwakakura kupfuura dzimwe nzvimbo.Uye zvakare, iyo piston inoburitsawo kusvina deformation pasi pechiito chekumanikidza padivi.Nekuda kweiyo deformation iri pamusoro, chikamu chemuchinjikwa chepiston siketi chinova ellipse ine axis hombe munzira yepiston pin.Mukuwedzera, nekuda kwekusaenzana kwekugovera kwekushisa uye kuwanda kwepiston pamwe neaxial direction, kuwedzera kwekushisa kwechikamu chimwe nechimwe kwakakura uye kuduku.