Ukuze kugcinwe umsantsa olinganayo kunye ofanelekileyo phakathi kwepiston kunye nodonga lwesilinda kwiqondo lokushisa eliqhelekileyo lokusebenza kunye nokuqinisekisa ukusebenza okuqhelekileyo kwepiston, uyilo lwesakhiwo sepiston ngokuqhelekileyo luneempawu ezilandelayo.1. Yenza i-oval shape kwangaphambili. Ukuze wenze amacala omabini e-skirt athwale uxinzelelo lwegesi kwaye agcine i-gap encinci kunye nekhuselekileyo kunye ne-cylinder, i-piston iyadingeka ukuba ibe yi-cylindrical xa isebenza. Nangona kunjalo, ngenxa yokuba ubukhulu besiketi sepiston bungalingani kakhulu, isinyithi somngxunya wesitulo sepiston singqindilili, kwaye ubungakanani bokwanda kwe-thermal bukhulu, kwaye ubungakanani boguquko ecaleni kwe-axis yesihlalo sepiston bukhulu kune ezinye iindlela. Ukongeza, isiketi siphantsi kwesenzo soxinzelelo lwecala legesi, olubangela ukuba i-axial deformation yepiston ibe nkulu kunendlela yepiston ethe nkqo. Ngale ndlela, ukuba umqukumbelo wepiston uyisazi setyhula xa kubanda, ipiston iya kuba yingqukuva xa isebenza, nto leyo eyenza ukuba umsantsa ojikelezayo phakathi kwepiston kunye nesilinda ungalingani, nto leyo ebangela ukuba ipiston ijamke kwicylinder kunye ne-cylinder. Injini ayikwazi ukusebenza ngesiqhelo. Ke ngoko, isiketi se-piston senziwa kwimilo ye-oval kwangaphambili ngexesha lokucubungula. Isalathiso se-axis ende ye-ellipse i-perpendicular kwisihlalo se-pin, kwaye i-axis isalathiso esifutshane sisecaleni kwesihlalo se-pin, ukuze ipiston isondele kwisangqa esigqibeleleyo xa isebenza.

2.Yenziwa kwimo yokunyathela okanye i-tapered kwangaphambili. Iqondo lobushushu lepiston ecaleni kwendlela yokuphakama alilingani kakhulu. Ubushushu bepiston buphezulu kwindawo ephezulu kwaye busezantsi kwindawo esezantsi, kwaye isixa sokwandisa ngokuhambelana sikhulu kwindawo ephezulu kwaye encinci kwindawo esezantsi. Ukuze wenze i-diameters ephezulu kunye nesezantsi yepiston ithande ukulingana ngexesha lokusebenza, oko kukuthi, i-cylindrical, i-piston kufuneka yenziwe kwangaphambili ibe yimo yokunyathela okanye i-cone kunye nencinci ephezulu kunye nezantsi enkulu.

3.Slotted piston skirt. Ukuze unciphise ukushisa kwe-piston skirt, i-horizontal heat insulation groove ivame ukuvulwa kwi-skirt. Ukuze uhlawule i-deformation ye-skirt emva kokufudumeza, i-skirt ivulwa nge-groove yokwandisa i-longitudinal. Ubume be-groove ine-groove efana ne-T.

I-groove ethe tyaba ivulwa ngokubanzi phantsi kwe-ring groove elandelayo, kumacala omabini esitulo se-pin kumphetho ophezulu we-skirt (kwakhona kwi-oil ring groove) ukunciphisa ukuhanjiswa kobushushu ukusuka entloko ukuya kwi-skirt, ngoko kubizwa ngokuba. umjelo wokugquma ubushushu. I-groove ethe nkqo iya kwenza i-skirt ibe neqondo elithile lokuqina, ukwenzela ukuba isithuba phakathi kwepiston kunye ne-cylinder ibe yincinci kangangoko kunokwenzeka xa i-piston ihlanganiswe, kwaye ibe nefuthe lembuyekezo xa ishushu, ukuze ipiston. ayizu kuxinga kwi cylinder, ngoko ke igroove ethe nkqo ibizwa ngokuba yeyokwandisa itanki. Emva kokuba i-skirt ifakwe ngokuthe nkqo, ukuqina kwecala eliqingqiweyo liya kuba lincinci. Ngexesha lendibano, kufuneka ibekwe kwicala apho uxinzelelo lwecala luncitshiswe ngexesha lokubetha komsebenzi. I-piston ye-injini ye-diesel inamandla amaninzi. Inxalenye yesiketi ayigungxulwanga.

4. Ukuze kuncitshiswe umgangatho wezinye iipistons, umngxuma wenziwa kwi-skirt okanye inxalenye yesiketi inqunyulwe kumacala omabini e-skirt ukunciphisa amandla e-J inertia kunye nokunciphisa i-thermal deformation kufuphi nesihlalo se-pin. yenza ipiston yekhareji okanye ipiston emfutshane. I-skirt yesakhiwo se-carriage ine-elasticity enhle, ubunzima obuncinci, kunye ne-clean ehambelanayo encinci phakathi kwe-piston kunye ne-cylinder, efanelekileyo kwiinjini zesantya esiphezulu.

5. Ukuze kuncitshiswe ukwanda kwe-thermal ye-aluminium alloy piston skirt, ezinye iipiston ze-injini yepetroli zifakwe kwi-Hengfan yentsimbi kwi-skirt ye-piston okanye isihlalo se-pin. Uphawu lolwakhiwo lwepiston yentsimbi yeHengfan kukuba intsimbi yeHengfan ine-33% yenickel. I-36% ephantsi kwe-carbon iron-nickel alloy ine-coefficient yokwandiswa kwe-1/10 kuphela ye-aluminium alloy, kwaye isihlalo se-pin sidityaniswe ne-skirt nge-Hengfan steel sheet, ethintela ukuguqulwa kwe-thermal yokwandisa isiketi.

6. Kwezinye iinjini zepetroli, i-centerline ye-piston pin hole iyaphambuka kwindiza ye-piston centerline, echithwa ngu-1 ukuya kwi-2 mm ukuya kwicala le-stroke yomsebenzi ofumana uxinzelelo kwicala eliphambili. Esi sakhiwo senza ukuba i-piston iguquke ukusuka kwelinye icala le-cylinder ukuya kwelinye icala le-cylinder ukusuka kwi-compression stroke ukuya kwi-stroke yamandla, ukwenzela ukunciphisa isandi sokunkqonkqoza. Ngexesha lofakelo, isalathiso esichengekileyo sepiston asikwazi ukuguqulwa, ngaphandle koko amandla okubuyisela umva aya kwanda kwaye isiketi siya konakala.