Ngabe isebenza kanjani umlawuli wesigaba sokuqeda umsebenzi?
Umgomo osebenzayo womlawuli wesigaba sokuphelelwa amandla ngokufakwa kwentwasahlobo yokubuya, inkomba yethromu ibheke phambili ekuqondisweni kwe-torque phambili ye-camshaft, ukuqinisekisa ukuthi umlawuli wesigaba sokuphenya angabuya ngokujwayelekile. Ekusebenzeni kwenjini, ngokushintsha okuqhubekayo kwesimo sokusebenza, isigaba se-camshaft sidinga ukulungiswa ngokuqhubekayo, futhi intwasahlobo ebuyiseli izojikeleza ngokuhlukile ngokulungiswa kwesigaba. Lokhu kunyakaza kungaholela ekuqhekekeni kokukhathala kwentwasahlobo yokubuya, ngakho-ke kuyadingeka ukuvivinya uhlobo oluphezulu olukhiqizwe yi-Return Spring lapho usebenza ukunquma isici sokuKirKir Safety sentwasahlobo.
Umgomo osebenzayo we-Surge Regulator yeSigaba Sokuphenya futhi uhilela umqondo weSigaba se-Enjini Valve, okungukuthi, isikhathi sokuvula nokuvala nesikhathi sokuvula kanye nama-valves aphezulu amelwe yi-crankshaft angle. Isigaba se-valve sivame ukumelwa umdwebo oyindilinga we-crank angle ehlobene nezikhundla eziphezulu nezisezansi ezifile ezikhumulayo, ezingabonakala njengenqubo yokuphefumula kanye nokuphefumula umzimba womuntu. Umsebenzi oyinhloko we-valve mechanism ukuvula futhi uvale i-inlet kanye nama-valves okuphuma kwesilinda ngasinye ngokuya ngomkhawulo wesikhathi esithile, ukuze uqaphele yonke inqubo ye-gerlinder air ukushintshaniswa komoya enjini.
Ezihlolweni ezithile zezobuchwepheshe, ezifana ne-VTEC Technology, ngokulungiswa okuhlakaniphile kohlelo lokulawula ngogesi, kungabona ukushintshwa okuzenzakalelayo kwamaqembu amabili e-valve drive cam ngejubane eliphansi nejubane eliphezulu, ukuze uzivumelanise nezidingo zezimo ezihlukile zokushayela ukuze zisebenze. Umgomo osebenzayo we-VTEC ngukuthi lapho injini iguqulwa isuka kwijubane eliphansi liye ngesivinini esikhulu, ikhipha i-camshaft ngokushintshanisa i-turbine yokuthola amandla ukuze ifinyeleleke ngokuqhubekayo ukuguqula isikhathi se-valve. Lobu buchwepheshe buthuthukisa ngempumelelo ukusebenza kahle kokuhlanganisa, kwandisa umphumela wamandla, futhi kunciphisa ukusetshenziswa kwamafutha nokuphuma.
Iyini indima yoMlawuli Wesigaba Sokuphefumula?
Umsebenzi oyinhloko womlawuli wesigaba sokuphuma kokushintsha isigaba se-camshaft ngokuya ngezinguquko ezimeni ezisebenzayo zenjini, ukuze uguqule isikhathi se-valve, bese uthuthukisa ukusebenza kahle kwenjini, uthuthukise ukusebenza kwenjini.
Umlawuli wesigaba sokuphenya uqaphela ukusebenza kahle kwenjini ngomgomo wawo wokusebenza. Ngohlelo lokusebenza olusebenzayo, lapho injini isivaliwe, umlawuli wesigaba sokuthakwa usesimweni sokukhanya kakhulu, futhi umlawuli wesigaba sokuphuma usesimweni esithuthuke kakhulu. I-Enjini Camshaft ijikeleze ngendlela ye-lag ngaphansi kwesenzo se-torque edlulile. Kumlawuli wesigaba sokuphuma, isikhundla saso sokuqala sisesimweni esithuthuke kakhulu, ngakho-ke i-tamshaft torque kumele inqotshwe ukubuyela esimweni sokuqala lapho injini imiswa. Ukuze unike amandla i-Supter Regulator yokuphuma esigabeni sokubuya ngokujwayelekile, intwasahlobo yokubuya ivame ukufakwa kukho, futhi inkomba yakhe ye-torque ibheke phambili ekuqondisweni kwe-torque phambili ye-camshaft. Lapho injini isebenza, ngokushintsha okuqhubekayo kwesimo sokusebenza, isigaba se-camshaft sidinga ukulungiswa ngokuqhubekayo, futhi intwasahlobo ebuyiseli izojikeleza ngokuhlukile ngokulungiswa kwesigaba. Lo msebenzi usiza ukwandisa ukusebenza kwenjini, kufaka phakathi amandla akhuphukayo, i-torque nokunciphisa ukuphuma okuyingozi.
Ngaphezu kwalokho, ukwakhiwa kanye nokusetshenziswa kwama-aurterator esigaba sokuphenya futhi kubandakanya ukuhambisana nemithetho yokuphuma enjini. Umlawuli wesigaba se-camshaft usetshenziswe kabanzi enjini kaphethiloli ngokulawulwa okuqinile kokuphuma kwezimoto. Ngokushintsha ngokuqhubekayo i-Valve Overlap Angle, umlawuli wesigaba se-camshaft angakwazi kalula futhi alawule ngempumelelo ukusebenza kahle kwe-Injini kanye nenani likagesi oselelayo ku-Cylinder, ngaleyo ndlela ethuthukisa ukuphuma kwenjini nokunciphisa ukuphuma okulimazayo.
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