I-Cummins Engine ingxenye ye-Engine Piston 4095489/4089357/4095490 ye-Cummins QSK23 Engine

Isakhiwo kanye nesimiso sokusebenza se-piston

I-piston yonke ingahlukaniswa izingxenye ezintathu: umqhele we-piston, ikhanda le-piston nesiketi se-piston.

Umsebenzi oyinhloko we-piston ukumelana nokucindezela kokuvutha kusilinda bese udlulisela la mandla ku-crankshaft ngephinikhodi ye-piston kanye nenduku yokuxhuma.Ngaphezu kwalokho, i-piston yakha igumbi elivuthayo kanye nekhanda le-cylinder nodonga lwesilinda.

Umqhele we-piston uyingxenye yekamelo elivuthayo, ngakho-ke kuvame ukwakhiwa ngezindlela ezahlukene.Ikakhulukazi, ipiston yenjini kaphethiloli ithatha indawo engaphezulu eyisicaba noma i-concave top ukuze yenze igumbi lomlilo lihlangane ngokwesakhiwo, libe lincane endaweni ekhipha ukushisa, futhi libe lula ekukhiqizeni.Ama-convex pistons avame ukusetshenziswa ezinjini zikaphethiloli ezinemivimbo emibili.Umqhele we-piston wenjini ye-diesel uvame ukwenziwa ngemigodi ehlukahlukene.

Ikhanda le-piston liyingxenye engaphezulu kwesihlalo sephinikhodi.Inhloko ye-piston ifakwe indandatho ye-piston ukuvimbela ukushisa okuphezulu kanye negesi yokucindezela okuphezulu ekungeneni ku-crankcase, futhi ngesikhathi esifanayo ukuvimbela amafutha ukuba angangeni ekamelweni elivuthayo;ukushisa okuningi okumuncwa phezulu kwepiston nakho kudlula ekhanda le-piston Ingxenye idluliselwa kusilinda, bese idlula endaweni yokupholisa.

Zonke izingxenye ezingaphansi kwe-piston ring groove zibizwa ngokuthi iziketi ze-piston.Umsebenzi wayo ukuqondisa i-piston ukuze ibuyele kusilinda futhi ithwale ingcindezi eseceleni.Lapho injini isebenza, i-piston izogoba futhi ikhubazekile ngenxa yokucindezela kwegesi kusilinda.Ngemva kokuba i-piston ishisiwe, kunensimbi eningi ephinikhodi, ngakho ukunwetshwa kwayo kukhulu kunezinye izindawo.Ngaphezu kwalokho, i-piston izophinde ikhiqize ukuguqulwa kokucindezela ngaphansi kwesenzo sokucindezela ohlangothini.Njengomphumela we-deformation engenhla, ingxenye yesiphambano sesiketi se-piston iba i-ellipse ene-axis enkulu ekuqondeni kwephinikhodi ye-piston.Ngaphezu kwalokho, ngenxa yokusatshalaliswa okungalingani kwezinga lokushisa nesisindo se-piston eduze nesiqondiso se-axial, ukunwetshwa okushisayo kwesigaba ngasinye kukhulu futhi kuncane.