Igiya le-valve lingenye yezingxenye ezibaluleke kakhulu zenjini, ikakhulukazi ekunqumeni ukuphuma kwayo.Inesibopho sokulawula ukuhamba kukaphethiloli nomoya ongena futhi ophuma emagumbini avuthayo enjini.Igiya le-valve liqukethe izinto ezimbalwa ezixhumene, okuhlanganisa i-camshaft, ama-tappets, ama-pushrod, ama-rocker, nama-valve, konke okusebenzisana ukulawula ukusebenza kwenjini.
Okunye okucatshangelwayo okubalulekile uma kukhulunywa ngegiya le-valve inani lokuphakanyiswa kanye nobude bokuvulwa kwe-valve.I-lift ibhekisela ebangeni elivuleka ivalvu kuyilapho ubude besikhathi buwubude besikhathi lapho i-valve ihlala ivuliwe.Inani lokuphakamisa kanye nobude besikhathi ngokuvamile linquma ukuthi ungakanani umoya kanye nophethiloli injini engawusebenzisa, okunomthelela ekugcineni okukhiphayo.
Kunezinhlobo ezahlukene zamagiya ama-valve asetshenziswa ezinjinini, okuhlanganisa i-single-overhead cam (SOHC), i-dual-overhead cam (DOHC), kanye ne-pushrod.Ngalinye lalawa magiya e-valve linezinzuzo nezinselele zalo ngokulandelana, futhi ukuqonda umehluko wawo kungakusiza ukhethe elifanele elizosetshenziswa injini yakho.
Igiya le-valve ye-SOHC, ngokwesibonelo, lilula kodwa likwazi ukuhlinzeka ngamandla amakhulu, i-torque, nokonga kukaphethiloli.Igiya le-valve ye-DOHC, ngakolunye uhlangothi, liyinkimbinkimbi kakhulu kodwa lingathuthukisa ukusebenza kwenjini ngokusebenzisa umoya ongcono nokukhipha umoya, ikakhulukazi ku-RPM ephakeme.Igiya le-valve ye-Pushrod, evamise ukuhlotshaniswa nezinjini ezindala, ngokuvamile ane-revving ephansi futhi yakhelwe i-torque engaphezu kwamandla amahhashi.
Uma kukhulunywa ngokuthuthukisa ukuphuma kwenjini kusetshenziswa igiya le-valve, inhloso eyinhloko ukuzuza ukugeleza komoya okuphezulu okungenzeka.Lokhu kungenxa yokuthi ukugeleza komoya kubalulekile ekudaleni inqubo yokuvutha ekhiqiza amandla.Enye indlela yokwandisa ukugeleza komoya ukusebenzisa igiya eliphakamisa ukuphakama noma levalvu yesikhathi, okuvumela injini ukuba ithathe uphethiloli nomoya owengeziwe.Kodwa-ke, le ndlela inemikhawulo yayo, umphumela wokugcina kuye ngezinto ezinjengokususwa kwenjini, ukwakheka kwekhanda lesilinda, nokusebenza kahle komlilo.
Enye indlela yokuthuthukisa ukuphuma kwenjini usebenzisa igiya le-valve ukwenza kahle isikhathi se-valve ukusizakala nge-torque ephezulu yenjini namandla amahhashi.Lokhu ungakufeza ngokuzama amaphrofayili ekhamera ahlukene, asho ukuthi amavalvu avuleke futhi avaleke nini futhi kangakanani.Umgomo lapha uwukuqinisekisa ukuthi ama-valve avuleka ngokugcwele ngesikhathi senqubo yokuvutha, okuvumela ubuningi obungase bube khona uphethiloli nomoya ukuze kukhiqizwe amandla amaningi.
Sengiphetha, igiya le-valve liyingxenye ebalulekile kunoma iyiphi injini, futhi ukuqonda ukuthi likuthinta kanjani ukuphuma kwenjini kungakusiza uthuthukise ukusebenza kwenjini yakho.Qinisekisa ukuthi ukhetha igiya levalvu elifanele ozolisebenzisa okuhloswe yinjini yakho futhi ulinge nesikhathi sevalvu ukuze ufinyelele ukugeleza komoya okuphezulu nokuphuma kwamandla.Okokugcina, hlala ucabangela ukuphepha nokwethembeka lapho ulungiselela ukusebenza kahle kwenjini yakho futhi uthintane nochwepheshe uma ungaqiniseki ngokwenza izinguquko egiyeni le-valve lenjini yakho.
Isikhathi sokuthumela: Apr-19-2019