Isebenza njani i-exhaust phase regulator?
Umgaqo osebenzayo womlawuli wesigaba sokukhupha ngokuyinhloko ngokufakela intwasahlobo yokubuyisela, ulwalathiso lwe-torque luchasene nolwalathiso lwe-torque yangaphambili ye-camshaft, ukuqinisekisa ukuba umlawuli wesigaba sokukhupha unokubuya ngokuqhelekileyo. Ekusebenzeni kwe-injini, kunye noshintsho oluqhubekayo lwemeko yokusebenza, isigaba se-camshaft kufuneka sihlengahlengiswe ngokuqhubekayo, kwaye intwasahlobo yokubuya iya kujikeleza ngokungafaniyo kunye nokulungiswa kwesigaba. Le ntshukumo inokukhokelela ekuphelelweni kokukhathala kwentwasahlobo yokubuya, ngoko ke kuyimfuneko ukuvavanya ubunzima obukhulu obuveliswa yintwasahlobo yokubuya xa usebenza ukugqiba ukhuseleko lokukhathala kwentwasahlobo.
Umthetho-siseko wokusebenza wesilawuli sesigaba sokukhupha kwakhona ubandakanya ingqikelelo yesigaba sevalve ye-injini, oko kukuthi, ixesha lokuvula kunye nokuvala kunye nobude bexesha lokuvula lokungena kunye neevalvu zokukhupha ezimelwe yi-crankshaft Angle. Isigaba sevalve sikholisa ukumelwa ngumzobo ojikelezayo we-Angle ye-crank ngokunxulumene nendawo ephezulu kunye nesezantsi ye-crank ye-dead center, enokuthi ibonwe njengenkqubo yokuphefumlela kunye nokukhupha umzimba womntu. Umsebenzi ophambili wendlela yevalvu kukuvula nokuvala indawo yokungena kunye nokukhupha iivalvu ze-cylinder nganye ngokomda wexesha elithile, ukuze kuqatshelwe yonke inkqubo yobonelelo lotshintshiselwano lomoya we-injini yesilinda.
Kwizicelo zobugcisa ezithe ngqo, njengetekhnoloji ye-VTEC, ngohlengahlengiso olukrelekrele lwenkqubo yolawulo lwe-elektroniki, inokuqonda ukutshintshela okuzenzekelayo kwamaqela amabini eekhamera ezahlukeneyo zevalve ngesantya esiphantsi kunye nesantya esiphezulu, ukuze iqhelanise neemfuno iimeko zokuqhuba ezahlukeneyo ukusebenza injini. Umgaqo osebenzayo we-VTEC kukuba xa injini iguqulwa ukusuka kwisantya esiphantsi ukuya kwisantya esiphezulu, ikhompyutheni yekhompyutheni iqondisa ngokuchanekileyo uxinzelelo lweoyile kwi-camshaft yokuthatha, kwaye iqhube i-camshaft ukuba ijikeleze ngasemva nangaphezulu kuluhlu lwe-60 degrees ngokujikeleza. yeinjini yomoya encinci, ngaloo ndlela itshintsha ixesha lokuvula ivalve yokungena ukuze kuphunyezwe injongo yokuqhubeka nokulungelelanisa ixesha levalve. Le teknoloji iphucula ngokufanelekileyo ukusebenza kakuhle kokutsha, yonyusa amandla ombane, kwaye inciphisa ukusetyenziswa kwamafutha kunye nokukhutshwa.
Yintoni indima yomlawuli wesigaba sokukhupha?
Umsebenzi oyintloko womlawuli wesigaba sokukhupha kukulungelelanisa isigaba se-camshaft ngokotshintsho kwiimeko zokusebenza ze-injini, ukwenzela ukulungelelanisa ukungena kunye nokukhupha umthamo, ukulawula ixesha lokuvula kunye nokuvala kunye ne-Angle ye-valve, emva koko. ukuphucula ukusebenza kakuhle kwe-injini, ukuphucula ukusebenza kakuhle kokutsha, kunye nokunyusa amandla e-injini. ...
Umlawuli wesigaba sokukhupha uqonda ukuphuculwa kokusebenza kwe-injini ngomgaqo wayo wokusebenza. Kwisicelo esisebenzayo, xa i-injini ivaliwe, umlawuli wesigaba sokuthatha ukwindawo ephantsi kakhulu, kwaye umlawuli wesigaba sokukhupha ukwindawo ephezulu kakhulu. I-injini ye-camshaft ijikeleza kwicala le-lag phantsi kwesenzo se-counterclockwise torque phambili. Kwi-exhaust phase regulator, indawo yayo yokuqala ikwinqanaba eliphezulu kakhulu, ngoko ke i-torque ye-camshaft kufuneka inqotshwe ukuze ibuyele kwindawo yokuqala xa injini imisiwe. Ukuze uvumele umlawuli wesigaba sokukhupha ukuba abuyele ngokuqhelekileyo, i-spring yokubuya ivame ukufakwa kuyo, kwaye isalathiso sayo se-torque sichasene nolwalathiso lwe-torque yangaphambili ye-camshaft. Xa injini isebenza, kunye noshintsho oluqhubekayo lwemeko yokusebenza, isigaba se-camshaft kufuneka silungiswe ngokuqhubekayo, kwaye intwasahlobo yokubuya iya kujikeleza ngokunye kunye nokulungiswa kwesigaba. Lo msebenzi unceda ukwenza ngcono ukusebenza kwe-injini, kubandakanya ukonyuka kwamandla, i-torque kunye nokunciphisa ukukhutshwa okuyingozi.
Ukongeza, uyilo kunye nokusetyenziswa kwabalawuli besigaba sokukhupha kwakhona kubandakanya ukuthotyelwa kwemigaqo yokukhupha injini. I-camshaft phase regulator isetyenziswe ngokubanzi kwi-injini yepetroli kunye nommiselo ongqongqo wokukhupha i-automobile exhaust. Ngokuqhubeka nokulungelelanisa i-valve overlap Angle, umlawuli wesigaba se-camshaft unokuguquguquka kwaye alawule ngokufanelekileyo ukunyuka kwamaxabiso e-injini kunye nesixa segesi ephumayo eshiyekileyo kwi-cylinder, ngaloo ndlela iphucula ukusebenza kwe-injini kunye nokunciphisa ukukhutshwa okuyingozi.
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