Uthini umgaqo wokukhupha ivalve yemoto
Umsebenzi osisiseko wevalve yokukhupha imoto kukulawula igesi yokukhupha ekhutshwe kwi-cylinder ukuqinisekisa ukuba irhasi yokukhupha emva kokutsha inokukhutshelwa ngokufanelekileyo, ukwenza indawo yomoya omtsha kunye nomxube wamafutha, ukuze kugcinwe umjikelo oqhubekayo wokutsha. yenjini.
Umgaqo wokusebenza wevalve yokukhupha imoto usekwe kwimivumbo emine esisiseko ye-injini: ukungena, ukucinezelwa, ukusebenza kunye nokuphuma. Ngexesha lokukhupha i-exhaust stroke, i-piston ihambela phezulu kwaye ivalve yokukhupha iyavula, ivumela igesi yokukhupha ukubaleka kwi-cylinder. Ukuvulwa kunye nokuvalwa kwe-valve yokukhupha kulawulwa yi-camshaft, kwaye i-CAM shape kwi-camshaft inquma ixesha lokuvula kunye nobude be-valve yokukhupha. Ngokukodwa, ivalve yokukhupha ihlala inevalve, isihlalo, intwasahlobo kunye nesiqu. I-valve ihlala ivaliwe kunye nesenzo sentwasahlobo de i-CAM kwi-camshaft iqhube i-stem kwaye inqobe amandla entwasahlobo ukuvula i-valve. Emva kokuba i-CAM ye-camshaft iphelile, intwasahlobo ivala ngokukhawuleza i-valve, iqinisekisa ukuba i-exhaust gas ayibuyi.
Ukulungiswa kwevalve yokukhupha kunye nokugcinwa kwayo Ngokusebenzisa itekhnoloji yexesha levalve eguquguqukayo, iinjineli zeemoto zanamhlanje zilungelelanisa ixesha lokuvula kunye nobude bevalve yokukhupha ngokomthwalo wenjini kunye nesantya sokuphucula ukusebenza kakuhle kokutsha kunye nokunciphisa ukukhutshwa. Ukongeza, ezinye ii-injini ezisebenza ngokuphezulu zibonakalisa uyilo lwe-valve eninzi ene-valve ezininzi zokuthatha kunye ne-exhaust nge-cylinder nganye ukunyusa isantya sokuhamba komoya kunye nokuphucula ukusebenza kakuhle kokutsha. Ukugcinwa rhoqo kunye nokuhlolwa kwevalve yokukhupha inokuqinisekisa ukuba ikwimeko entle yokusebenza, kubandakanya ukujonga ivalve kunye nokunxiba kwesihlalo, ukutshintshwa kweendawo ezigugileyo, kunye nohlengahlengiso lokucocwa kwevalvu.
Indima ephambili yokuphuma kwevalvu yemoto ibandakanya le miba ilandelayo:
Ukunciphisa ukuxhomekeka kwi-brake yenkonzo : ivalve yokukhupha i-brake inokunciphisa kakhulu ukuxhomekeka kwi-brake yenkonzo kwinkqubo yokuqhuba, ngaloo ndlela inciphisa iqondo lokunxiba izihlangu ze-brake okanye iidisks, kwaye ngokufanelekileyo uphephe imingcipheko yokhuseleko ebangelwa ku-braking overheating.
Inkqubo ezinzileyo ye-turbocharging : Ivalve yokukhupha idlala indima ephambili kwinkqubo ye-turbocharging, enokuzinzisa uxinzelelo lokuqhubela phambili kunye nokuqinisekisa ukusebenza okuzinzileyo kwe-injini kunye ne-turbocharger. Ngokulawula i-exhaust back pressure, ukuphuma kwevalvu kwandisa ukusebenza kwe-injini, ngakumbi kwi-RPM ephakathi ukuya phezulu.
lawula isandi sokukhupha i-valve : Isixhobo sokukhupha i-valve sinokulawula ubungakanani besandi sokukhupha isandi kunye nokulungelelanisa isandi sombhobho wokukhupha ngokuvula nokuvala ivalve. Xa i-valve ivaliwe, isandi sokukhupha sincinci, sifanelekile ukusetyenziswa kwindawo ezolileyo; Xa i-valve ivuliwe, isandi sokukhupha siyakhula, sifana nesandi semoto yezemidlalo.
Izibonelelo zokusingqongileyo : i-valve yokukhupha igesi ngokuphinda isetyenziswe irhasi encinci yenkunkuma kwi-cylinder combustion, ukunciphisa ubushushu bokutsha, ngaloo ndlela inqanda ukuveliswa kwe-NOx, ukunciphisa umxholo we-NOx kwirhasi yokukhupha, ukunceda ukukhuselwa kwendalo.
Iindlela ezahlukeneyo zolawulo : Iindlela zokulawula ukukhupha ivalve zahlukeneyo, ezinokuqondwa ngokulawulwa kude, i-APP yefowuni ephathwayo okanye ulawulo oluzenzekelayo lwesantya. Xa usebenzisa i-remote control, vele ucinezele iqhosha elivulekileyo, isignali engenazingcingo iya kuthunyelwa kumlawuli wevalve, kwaye umlawuli uya kulawula ivalve ukuvula emva kokufumana umyalelo.
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