Iyini isimiso sokukhipha i-valve yemoto
Umsebenzi oyisisekelo we-valve yokukhipha umoya yemoto ukulawula igesi yokukhipha umoya ekhishwa kwisilinda ukuqinisekisa ukuthi igesi yokukhipha umoya ngemva kokusha ingakhishwa ngempumelelo, ukwenza indawo yomoya omusha kanye nengxube kaphethiloli, ukuze kugcinwe umjikelezo wokushisa oqhubekayo wenjini.
Umgomo wokusebenza wevalvu yokukhipha umoya yemoto usekelwe ezinhlotsheni ezine eziyisisekelo zenjini: ukungena, ukucindezela, ukusebenza kanye nokukhipha umoya. Ngesikhathi sokushaya komoya, i-piston iya phezulu bese ivalvu yokukhipha umoya ivuleka, okuvumela igesi yokukhipha umoya ukuba iphume esilinda. Ukuvulwa nokuvalwa kwevalvu yokukhipha umoya kulawulwa yi-camshaft, futhi ukuma kwe-CAM ku-camshaft kunquma isikhathi sokuvulwa kanye nobude bevalvu yokukhipha umoya. Ngokukhethekile, ivalvu yokukhipha umoya ivame ukuba nevalvu, isihlalo, intwasahlobo, kanye nesiqu. Ivalvu ihlala ivaliwe ngesenzo sentwasahlobo kuze kube yilapho i-CAM ku-camshaft isunduza isiqu futhi inqobe amandla entwasahlobo ukuvula ivalvu. Uma i-CAM ye-camshaft isidlulile, intwasahlobo ivala ivalvu ngokushesha, iqinisekisa ukuthi igesi yokukhipha umoya ayibuyi .
Ukulungiswa nokugcinwa kwamavalvu okukhipha umoya Ngokusebenzisa ubuchwepheshe besikhathi samavalvu aguquguqukayo, onjiniyela bezimoto banamuhla balungisa isikhathi sokuvula kanye nobude bevalvu yokukhipha umoya ngokuya ngomthwalo wenjini kanye nesivinini ukuze bathuthukise ukusebenza kahle kokushisa nokunciphisa ukukhishwa komoya. Ngaphezu kwalokho, ezinye izinjini ezisebenza kahle kakhulu zinedizayini yamavalvu amaningi enamavalvu amaningi okungenisa kanye nawokukhipha umoya ngesilinda ngasinye ukuze kwandiswe isivinini sokuhamba komoya futhi kuthuthukiswe ukusebenza kahle kokushisa. Ukugcinwa njalo nokuhlolwa kwevalvu yokukhipha umoya kungaqinisekisa ukuthi isebenza kahle, kufaka phakathi ukuhlola ukuguguleka kwevalvu kanye nesihlalo, ukufaka esikhundleni izingxenye ezigugile, kanye nokulungisa ukuvuleka kwevalvu .
Indima eyinhloko yokukhishwa kwe-valve yemoto ihlanganisa izici ezilandelayo:
Nciphisa ukuncika ebhulekini lesevisi: ivalvu yebhuleki lokukhipha umoya inganciphisa kakhulu ukuncika ebhulekini lesevisi enkambisweni yokushayela, ngaleyo ndlela inciphise izinga lokuguguleka kwezicathulo noma amadiski ebhuleki, futhi igweme ngempumelelo izingozi zokuphepha ezibangelwa ukushisa ngokweqile okuqhubekayo kwebhuleki.
Uhlelo lwe-turbocharging oluzinzile : I-valve yokukhipha igesi idlala indima ebalulekile ohlelweni lwe-turbocharging, olungazinzisa ingcindezi yokuqhuba futhi luqinisekise ukusebenza okuzinzile kwenjini kanye ne-turbocharger. Ngokulawula ingcindezi yokukhipha igesi emuva, i-valve yokukhipha igesi yenza ngcono ukusebenza kwenjini, ikakhulukazi ku-RPM ephakathi kuya phezulu .
ukulawula umsindo wokukhipha umoya : Idivayisi yokukhipha umoya wevalvu ingalawula usayizi wegagasi lomsindo wokukhipha umoya futhi ilungise umsindo wepayipi lokukhipha umoya ngokuvula nokuvala ivalvu. Uma ivalvu ivaliwe, umsindo wokukhipha umoya mncane, ofanele ukusetshenziswa endaweni ethule; Uma ivalvu ivuliwe, umsindo wokukhipha umoya uyanda, njengomsindo wemoto yezemidlalo .
Izinzuzo zemvelo: igesi yokukhipha i-valve ngokuvuselela inani elincane legesi elahliwe ekushisweni kwesilinda, kunciphisa izinga lokushisa lokushisa, ngaleyo ndlela kuvimbele ukukhiqizwa kwe-NOx, kunciphisa okuqukethwe kwe-NOx kugesi yokukhipha, kusiza ekuvikeleni imvelo.
Izindlela ezahlukene zokulawula : izindlela zokulawula ukukhishwa kwe-valve ziyahlukahluka, ezingatholakala ngokulawula kude, i-APP yocingo noma ukulawula isivinini okuzenzakalelayo. Uma usebenzisa isilawuli kude, vele ucindezele inkinobho yokuvula, isignali engenantambo izodluliselwa kumlawuli we-valve, futhi isilawuli sizolawula i-valve ukuthi ivuleke ngemva kokuthola umyalo.
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