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Uhlalutyo lweempazamo eziqhelekileyo ze-Fuel Injector
I-injector yamafutha yenye yezinto ezintathu ezichanekileyo zenkqubo ye-fuel injini ye-diesel, kwaye ukuchaneka okuhambelanayo kuphezulu.Ukuba ayisetyenziswanga kwaye ayigcinwanga ngokufanelekileyo, iya kubangela idiphozithi enkulu yekhabhoni kwisitofu samafutha, ibangele ukuba itshise okanye ixinge, kwaye uxinzelelo lwenaliti yamafutha luphezulu kakhulu okanye luphantsi kakhulu, nto leyo echaphazela ukusebenza okuqhelekileyo kwenjini yedizili.Ngoko ke, ekusebenziseni nasekugcinweni kwesithuthi, i-injector ye-fuel kufuneka ixabiswe kakhulu ukwenzela ukuba i-injector ye-fuel ihlale igcinwe kwimeko yobugcisa obuqhelekileyo.
1.1 Ukunxiba kwesitofu
Isitofu (uhlobo lwe-pintle) Amalungu ahlala enxitywa ngala: umphezulu wekhowuni yokutywina, intsinjana kunye nenxalenye yesikhokelo.Isizathu sokunxiba ngokungaqhelekanga kwezi nxalenye sibangelwa ikakhulu kukungcola kwioli ye-diesel.Ukunxitywa komphezulu wekhowuni yokutywina yomphezulu wesitofu (umphezulu wekhowuni yevalve yenaliti kunye nomphezulu wekhowuni yevalve yenaliti yomzimba) kuya kubangela ukuthontsiza kwe-oyile ukusuka kumbhobho wesitofu, yenze iidiphozithi zekhabhoni, kwaye kwiimeko ezinzima, umngxuma wombhobho uya kuvaleka.Ukunxitywa kwenxalenye ehambelanayo yephini kunye nomngxuma wokutofa kuya kwandisa ububanzi bomngxuma wokutofa kunye nokutshintsha i-angle yokutofa, okukhokelela kwi-atomization engalunganga ye-fuel.Ukunxitywa kwenxalenye yesikhokelo kwandisa ukubuya kwe-oyile ye-injector, kunciphisa ukunikezelwa kwe-oyile, kunciphisa uxinzelelo lwenaliti, kunye nokulibazisa ixesha lokutofa.
ivalve yenaliti waxinga
Kukho izizathu ezine ezinokubangela ivalve yenaliti ebambekayo: 1. Ufakelo olungalunganga lwesitofu se-fuel.I-gasket kwisiphelo esisezantsi se-fuel injector yi-copper gasket.Ukuchaphazeleka kubushushu obuphezulu, i-valve yenaliti i-sintered kwaye ibambelele.2 Idizili iqulethe ukungcola okanye ukufuma okugqithisileyo.3. Umphezulu wekhowuni wevalve yenaliti yesitofu sokufutha awuvalwanga ngokuqinileyo, kwaye i-diesel fuel evuzayo ukuya ekupheleni kwesitofu se-fuel iya kubangela ukuba isitofu se-fuel siphele xa sisitsha.4. I-injini ye-diesel igcwele ixesha elide, okanye ixesha lokunikezelwa kwepetroli likhawuleza kakhulu okanye lide kakhulu, kwaye i-diesel fuel ayitshisi ngokupheleleyo ukuvelisa idiphozithi ye-carbon, okubangelwa ukuchithwa kakubi kokushisa kwe-injector kunye ne-jamming.Ukuba ivelufa yenaliti ibambekile xa ikwimo evulekileyo, i-oyile yedizili etshizwe sisitofa samafutha ayinakwenziwa iatom kwaye ayinakutshiswa ngokupheleleyo.Ukuba i-valve yenaliti ibambekile kwimeko evaliweyo, kungakhathaliseki ukuba i-oyile iphezulu kangakanani uxinzelelo lwe-fuel injection pump, i-valve yenaliti ayikwazi ukuvulwa, kwaye i-cylinder ayikwazi ukusebenza.