Iyini i-valve yokulawula uwoyela wezimoto
I-valve yokulawula uwoyela wezimoto (i-OCV valve) iyingxenye ebalulekile yesistimu yokugcoba injini, esetshenziswa kakhulu ukulawula ngokunembile isigaba se-valve yenjini nokucindezela kukawoyela, ukuze kuthuthukiswe ukusebenza kwenjini nomnotho kaphethiloli.
Incazelo kanye nomsebenzi
I-valve yokulawula uwoyela (i-valve ye-OCV) yakhiwe ngokuyinhloko i-valve yomzimba (okuhlanganisa ikhoyili ye-solenoid nesixhumi semojula yokulawula), i-valve yesilayidi kanye nesiphethu sokubuya. Umgomo osebenzayo ukulawula amandla nokucisha ikhoyili kazibuthe ngokusebenzisa isignali yokushintshashintsha kwe-pulse ehlinzekwa yiyunithi yokulawula injini (ECU), bese ukhiqiza amandla kazibuthe ukuze alawule ukusebenza kwe-valve yesilayidi, ukuze aguqule ngokuqhubekayo ubudlelwano besikhathi phakathi kwe-crankshaft ne-camshaft, ukuze kuzuzwe ukulawulwa kwesigaba se-valve okungcono kakhulu.
Ngalokhu kulungiswa, ama-valve okulawula uwoyela asiza ukukhulisa ukusebenza kahle kwenjini, athuthukise ukuqina kokungenzi lutho, alethe i-torque namandla amakhulu, kuyilapho futhi ethuthukisa ukonga kukaphethiloli nokunciphisa ukukhishwa kwegesi.
Uhlobo nesakhiwo
Amavalvu okulawula uwoyela angahlukaniswa abe izigaba ezimbili: amavalvu okulawula uwoyela namavalvu okuvikela. Umsebenzi oyinhloko womlawuli wengcindezi ukulawula ingcindezi ohlelweni ukuvimbela umonakalo ohlelweni lokugcoba ngenxa yokucindezela okukhulu; I-valve yokuvikela idlala indima ekuhlulekeni kwesilawuli sokucindezela ukuvimbela ishubhu ekuphukeni ngenxa yokucindezela okukhulu .
Ngaphezu kwalokho, kukhona inkinobho yokulawula ingcindezi kawoyela ehlobene nesekethe. Uma umfutho kawoyela unganele, iswishi izovala futhi icuphe ukukhanya kwe-alamu yengcindezi kawoyela ephansi ensimbini yemoto .
Indawo kanye nesicelo
I-valve yokulawula uwoyela ivamise ukufakwa engxenyeni yesilinda yenjini, indawo ethize ingemuva kwe-camshaft timing pulley nhlangothi zombili, ngokulandelana okubhekele imisebenzi yokudonsa nokukhipha umoya. Lawa ma-valve abukeka njenge-cylindrical futhi anepulaki phezulu elixhuma izintambo ezimbili. Ngaphezu kwalokho, kukhona amanye ama-valve okulawula amafutha abalulekile ohlelweni, njenge-valve etholakala emzimbeni we-cylinder, umsebenzi oyinhloko ukulawula ukugeleza kwamafutha ku-tile eyinhloko kanye ne-vvt; Enye isebenza njenge-valve yokubuyisela uwoyela ukuze kuqinisekiswe ukuthi amafutha angabuyiselwa epanini likawoyela ngemva kokuba imoto icishiwe.
Umsebenzi oyinhloko we-valve yokulawula uwoyela wemoto ukulawula nokuvimbela ingcindezi yohlelo lokugcotshwa kwenjini ukuba ibe phezulu kakhulu. Ngokunciphisa ukucindezela okukhulu kwesistimu, kuvimbela ukucindezela okukhulu ekulimazeni izingxenye zesistimu yokugcoba futhi kuvimbele ukuvuza kwamafutha. I-valve yokulawula uwoyela yakhiwe umhlangano womzimba kanye nomhlangano we-actuator, ihlukaniswe yaba uchungechunge lwesihlalo esisodwa, uchungechunge lwezihlalo ezimbili, uchungechunge lwemikhono kanye nochungechunge oluzihambelayo lochungechunge olune, uchungechunge ngalunye lunesicelo salo esikhethekile, izinzuzo kanye nokubi ngaphansi kwezimo zokusebenza ezahlukene. .
Indima ethize
Nciphisa ukucindezela okukhulu kwesistimu : i-valve yokulawula uwoyela ngokulawula ukunikezwa kukawoyela kwephampu kawoyela, ukuvimbela umfutho kawoyela wephampu kawoyela uphezulu kakhulu, ikakhulukazi ngesivinini esikhulu, ukunikezwa kukawoyela kwephampu kawoyela kukhulu kakhulu, umfutho kawoyela ukhuphuka kakhulu, khona-ke i-valve yokulawula uwoyela ibaluleke kakhulu.
Vimbela ukulimala ezingxenyeni zesistimu yokugcoba : Ukucindezela kukawoyela okweqile kungase kubangele ukuthi i-hydraulic tasht valve ivaleke ngendlela engafanele, umfutho we-cylinder wehle, futhi kungase kubangele nokuqhuma kweshubhu. I-valve yokulawula uwoyela ivikela uhlelo lokugcoba ekulimaleni ngokulawula ukucindezela.
iqinisekisa ukusebenza kahle futhi okuzinzile kwenjini : Enjinini yokulinganisa i-valve eguquguqukayo, i-valve yokulawula uwoyela iqinisekisa ukulungiswa kwesigaba se-camshaft ngokulawula ngokunembile ukushintshwa kwephaseji kawoyela, ukuze kuqinisekiswe ukuthi injini ingafinyelela isimo esingcono kakhulu sokusebenza ngaphansi kwezimo ezihlukene zokusebenza.
Umthelela wephutha
Uma i-valve yokulawula uwoyela ihluleka, ingabangela imoto ukuthi ime ngesikhathi sokushayela, futhi umfutho kawoyela uzokhuphuka ngendlela engavamile, kuphazamise ukusebenza kwemoto, njengokuthi ingxube ishube kakhulu, intuthu emnyama evela epayipini lokukhipha umoya, namandla ayancipha. Umfutho kawoyela owedlulele ungase uholele ekwandeni kokusetshenziswa kukaphethiloli, isisi esikhipha umoya ngokweqile, nesivinini esingazinzile sokungenzi lutho, okwandisa izingozi zokuphepha kanye nomthwalo wezomnotho wemoto. Ngakho-ke, uma i-valve yokulawula uwoyela itholakala inephutha, kufanele kubhekwane nayo ngokushesha.
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