Iyini i-valve yokulawula uwoyela wemoto
I-valve yokulawula uwoyela wezimoto (i-valve ye-OCV) iyingxenye ebalulekile yohlelo lokugcoba injini, esetshenziswa kakhulu ukulawula ngokunembile isigaba se-valve yenjini kanye nomfutho kawoyela, ukuze kuthuthukiswe ukusebenza kwenjini kanye nokonga uphethiloli.
Incazelo kanye nomsebenzi
I-valve yokulawula uwoyela (i-valve ye-OCV) yakhiwe kakhulu ngomzimba we-valve (kufaka phakathi i-coil ye-solenoid kanye nesixhumi se-control module), i-valve yesilayidi kanye nesiphethu sokubuya. Umgomo osebenzayo ukulawula amandla okuvula nokuvala i-coil ye-electromagnetic ngokusebenzisa isignali ye-pulse modulation enikezwa yiyunithi yokulawula injini (ECU), bese ukhiqiza insimu yamagnetic ukulawula isenzo se-valve yesilayidi, ukuze kushintshwe njalo ubudlelwano besikhathi phakathi kwe-crankshaft ne-camshaft, ukuze kufezwe ukulawula kwesigaba se-valve okungcono kakhulu.
Ngale nqubo, ama-valve okulawula uwoyela asiza ekwandiseni ukusebenza kahle kwenjini, athuthukise ukuzinza kokungenzi lutho, alethe i-torque namandla amakhulu, kuyilapho futhi ethuthukisa ukonga uphethiloli kanye nokunciphisa ukukhishwa kwegesi.
Uhlobo kanye nesakhiwo
Amavalvu okulawula uwoyela angahlukaniswa ngezigaba ezimbili: amavalvu okulawula uwoyela namavalvu okuvikela. Umsebenzi oyinhloko womlawuli wokucindezela ukulawula ingcindezi ohlelweni ukuvimbela umonakalo ohlelweni lokugcoba ngenxa yokucindezela okuphezulu; Ivalvu evikelayo idlala indima ekwehlulekeni komlawuli wokucindezela ukuvimbela ipayipi ukuthi lingaphuki ngenxa yokucindezela okukhulu.
Ngaphezu kwalokho, kukhona inkinobho yokulawula umfutho kawoyela ehlobene nesekethe. Uma umfutho kawoyela unganele, inkinobho izovala bese ivula isibani se-alamu somfutho kawoyela ophansi emshinini wemoto .
Indawo kanye nesicelo
I-valve yokulawula uwoyela ivame ukufakwa engxenyeni yesilinda yenjini, indawo ethile ingemuva kwe-camshaft timing pulley ezinhlangothini zombili, ngokulandelana inesibopho semisebenzi yokungenisa kanye nokukhipha umoya. Lawa ma-valve abukeka njenge-cylindrical futhi ane-plug phezulu exhumanisa izintambo ezimbili . Ngaphezu kwalokho, kunezinye ama-valve okulawula uwoyela abalulekile ohlelweni, njenge-valve etholakala emzimbeni wesilinda, umsebenzi oyinhloko ukulawula ukugeleza kukawoyela kuthayela eliyinhloko kanye ne-vvt; Elinye lisebenza njenge-valve yokubuyisela uwoyela ukuqinisekisa ukuthi uwoyela ungabuyiselwa epanini likawoyela ngemva kokuba imoto icishiwe.
Umsebenzi oyinhloko wevalvu yokulawula uwoyela wemoto ukulawula nokuvimbela ingcindezi yohlelo lokugcoba injini ukuthi ingabi phezulu kakhulu. Ngokunciphisa ingcindezi ephezulu yohlelo, ivimbela ingcindezi enkulu ekulimazeni izingxenye zohlelo lokugcoba futhi ivimbele ukuvuza kwamafutha. Ivalvu yokulawula uwoyela yakhiwe ukuhlanganiswa komzimba kanye nokuhlanganiswa kwe-actuator, okuhlukaniswe ngochungechunge lwezihlalo ezilodwa, uchungechunge lwezihlalo ezimbili, uchungechunge lwemikhono kanye nochungechunge oluziqhubayo olunezinhla ezine, uchungechunge ngalunye lunokusetshenziswa kwalo okukhethekile, izinzuzo kanye nokungalungi ngaphansi kwezimo zokusebenza ezahlukene.
Indima ethile
Nciphisa ukucindezela okuphezulu kwesistimu: ivalvu yokulawula uwoyela ngokulawula ukunikezwa kukawoyela kwephampu kawoyela, ukuvimbela ukucindezela kukawoyela kwephampu kawoyela kuphakeme kakhulu, ikakhulukazi ngesivinini esikhulu, ukunikezwa kukawoyela kwephampu kawoyela kukhulu kakhulu, ukucindezela kukawoyela kukhushulwe kakhulu, khona-ke ivalvu yokulawula uwoyela ibaluleke kakhulu.
Vimbela umonakalo ezingxenyeni zesistimu yokugcoba: Umfutho owedlulele kawoyela ungabangela ukuthi ivalvu ye-hydraulic tasht ivaleke ngendlela engafanele, umfutho wesilinda wehle, futhi ungabangela ngisho nokuqhuma kwamapayipi. Ivalvu yokulawula kawoyela ivikela uhlelo lokugcoba emonakalweni ngokulawula umfutho.
iqinisekisa ukusebenza kahle nokuzinzile kwenjini : enjinini yokubuyisela isikhathi se-variable valve, i-valve yokulawula uwoyela iqinisekisa ukulungiswa kwesigaba se-camshaft ngokulawula ngokunembile ushintsho lwendlela kawoyela, ukuze kuqinisekiswe ukuthi injini ingafinyelela isimo sokusebenza esingcono kakhulu ngaphansi kwezimo zokusebenza ezahlukene.
Umphumela wephutha
Uma ivalvu yokulawula uwoyela ihluleka, ingabangela ukuthi imoto ime ngesikhathi sokushayela, futhi umfutho kawoyela uzokhuphuka ngendlela engavamile, okuthinta ukusebenza kwemoto, njengokuthi ingxube ijiyile kakhulu, intuthu emnyama evela epayipini lokukhipha umoya, futhi amandla ayancipha. Umfutho kawoyela owedlulele ungase uholele ekusetshenzisweni kukaphethiloli okweqile, ukukhishwa komoya okweqile ngokweqile, kanye nesivinini esingazinzile sokungenzi lutho, okwandisa izingozi zokuphepha kanye nomthwalo wezomnotho wemoto. Ngakho-ke, uma ivalvu yokulawula uwoyela itholakale inephutha, kumele ixazululwe ngokushesha.
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