Uyini umgomo wokukhipha i-valve yemoto
Umsebenzi oyisisekelo we-valve yokukhipha umoya wemoto ukulawula igesi yokukhipha umoya ephuma kusilinda ukuze kuqinisekiswe ukuthi igesi yokukhipha umoya ngemva kokusha ingakhishwa ngokuphumelelayo, ukuze kuvuleke indawo yomoya omusha nengxube kaphethiloli, ukuze kugcinwe umjikelezo wokuvutha oqhubekayo wenjini.
Umgomo wokusebenza we-valve yokukhipha umoya wemoto usekelwe emigqeni emine eyisisekelo yenjini: ukudonsa, ukuminyanisa, ukusebenza kanye ne-exhaust. Phakathi ne-exhaust stroke, i-piston iya phezulu futhi i-valve yokukhipha umoya iyavuleka, okuvumela igesi yokukhipha umoya ukuba iphume kusilinda. Ukuvulwa nokuvalwa kwe-valve yokukhipha kulawulwa yi-camshaft, futhi ukuma kwe-CAM ku-camshaft kunquma isikhathi sokuvula nobude be-valve yokukhipha. Ngokuqondile, i-valve yokukhipha ngokuvamile iqukethe i-valve, isihlalo, intwasahlobo, nesiqu. I-valve ihlala ivaliwe ngesenzo sentwasahlobo kuze kube yilapho i-CAM ku-camshaft iphusha isiqu futhi inqobe amandla entwasahlobo ukuze uvule i-valve. Uma i-CAM ye-camshaft isiphelile, isiphethu sivala ngokushesha i-valve, siqinisekise ukuthi igesi ephumayo ayibuyi.
Ukwenziwa ngcono kwe-valve yokukhipha umoya nokugcinwa nokugcinwa kahle Ngokusebenzisa ubuchwepheshe besikhathi be-valve obuguquguqukayo, onjiniyela bezimoto besimanje balungisa isikhathi sokuvula nobude be-valve yokukhipha umoya ngokuvumelana nomthwalo wenjini kanye nesivinini ukuze kuthuthukiswe ukusebenza kahle komlilo nokunciphisa ukukhishwa kwegesi. Ngaphezu kwalokho, ezinye izinjini ezisebenza kahle kakhulu zifaka idizayini enama-valve amaningi anama-valve amaningi okungenisa nawokukhipha umoya ngesilinda ngasinye ukuze kwandiswe isivinini sokugeleza komoya futhi kuthuthukiswe ukusebenza kahle komlilo. Ukugcinwa njalo nokuhlolwa kwe-valve yokukhipha umoya kungaqinisekisa ukuthi isesimweni esihle sokusebenza, okuhlanganisa ukuhlola ukuguga kwe-valve nesihlalo, ukushintsha izingxenye ezigugile, nokulungisa ukuphuma kwe-valve.
Indima eyinhloko yokukhishwa kwe-valve yemoto ihlanganisa izici ezilandelayo:
Yehlisa ukuncika kumabhuleki esevisi : ivalvu yebhuleki ephumayo inganciphisa kakhulu ukuncika ekubhulekeni ngesikhathi sokushayela, ngaleyo ndlela yehlise izinga lokuguga kwezicathulo zamabhuleki noma amadiski, futhi igweme ngempumelelo izingozi zokuphepha ezibangelwa ukushiswa kwamabhuleki okuqhubekayo.
Uhlelo oluzinzile lwe-turbocharging : Ivalvu yokukhipha umoya idlala indima ebalulekile ohlelweni lokushaja i-turbocharging, olukwazi ukusimamisa umfutho we-propulsion futhi luqinisekise ukusebenza okuzinzile kwenjini ne-turbocharger. Ngokulawula i-exhaust back pressure, i-valve exhaust ithuthukisa ukusebenza kwenjini, ikakhulukazi ku-RPM ephakathi ukuya phezulu.
lawula umsindo we-exhaust : Isisetshenziswa se-valve exhaust singalawula usayizi we-exhaust wave wave futhi silungise umsindo wepayipi le-exhaust ngokuvula nokuvala i-valve. Lapho i-valve ivaliwe, umsindo wokukhipha umoya omncane, ufanelekile ukusetshenziswa endaweni ethule; Lapho i-valve ivuliwe, umsindo wokukhipha umoya uyanda, ufana nomsindo wemoto yezemidlalo.
Izinzuzo zemvelo : igesi yokukhipha i-valve ngokugaya kabusha igesi encane engcolile ekushiseni kwesilinda, ukunciphisa izinga lokushisa lokuvutha, ngaleyo ndlela kuvimbele ukukhiqizwa kwe-NOx, kunciphise okuqukethwe kwe-NOx kugesi yokukhipha, kusize ekuvikelweni kwemvelo.
Izindlela ezahlukahlukene zokulawula : Izindlela zokulawula ukuphuma kwe-valve zihlukahlukene, ezingenziwa ngesilawuli kude, i-APP yeselula noma isilawuli sesivinini esizenzakalelayo. Uma usebenzisa isilawuli kude, vele ucindezele inkinobho evulekile, isignali engenantambo izodluliselwa kusilawuli se-valve, futhi isilawuli sizolawula i-valve ukuze ivuleke ngemva kokuthola umyalo.
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