Iyini isembozo se-valve yemoto
Isembozo se-valve yemoto siyingxenye yomshini, evame ukwenziwa ngezinto zensimbi, njenge-aluminium alloy kanye ne-cast iron. Sitholakala ngaphezu kohlelo lwe-valve phezulu kwenjini futhi sisetshenziselwa ukumboza izingxenye ze-valve kanye ne-valve drive ukuqinisekisa ukusebenza okuvamile kohlelo lwe-valve. Indima eyinhloko yesembozo se-valve ihlanganisa ukugcina uhlelo lwe-valve luhlanzekile nokuvimbela ukungcola okufana nothuli, ukungcola, udoti ukuthi ungangeni ohlelweni lwe-valve, ngaleyo ndlela kuvikelwe izingxenye ze-valve drive kanye nama-valve bearing. Ngaphezu kwalokho, isembozo se-valve siqinisekisa ukuthi uwoyela awuvuzi noma awungeni ku-valve bearing, kugwenywe umonakalo wezingxenye kanye nokungcola kwamafutha .
Isakhiwo sesembozo sevalvu sihlanganisa umzimba wevalvu, isembozo sevalvu, umongo wevalvu, ukupakisha, ibholthi, inathi, i-gasket, isibambo, i-bearing kanye nedivayisi yokushayela. Umzimba wevalvu uyisakhiwo esiyinhloko sokusekela, kanti isembozo sevalvu sitholakala ngaphezu komzimba wevalvu ukuze sivale futhi sibambe ukupakisha noma i-spool. I-spool iyingxenye yokulawula elawula indlela yokugeleza, ingcindezi kanye nokugeleza koketshezi. Ukupakisha kutholakala phakathi kwe-spool ne-bonnet ukuze kuvalwe futhi kuncishiswe ukuvuza. Amabholthi namantongomane asetshenziselwa ukuxhuma umzimba wevalvu ne-bonnet ukuze kubambeke ndawonye. I-gasket ihlala phakathi kwebholthi nenathi futhi ivikela umzimba kanye nesivalo ekugugeni. Isibambo sisetshenziselwa ukusebenzisa ivalvu, i-bearing isekela i-spool futhi inciphise ukungqubuzana, kanti idivayisi yokushayela isetshenziselwa ukushayela ukunyakaza kwe-spool ukuze kufezwe ukulawula kwevalvu .
Ukugcinwa kanye nokufakwa kwesembozo sevalvu nakho kubaluleke kakhulu. Ukuhlolwa njalo nokugcinwa kungavimbela izinkinga ezibangelwa izivalo zevalvu ezikhululekile noma ukuvalwa okungekuhle. Ukufakwa okungalungile kungabangela ukwehluleka kwevalvu, okungathinta ukusebenza kahle kwenjini kanye nokuphila kwayo. Lapho kufakwa ibhonethi, kufanele kusetshenziswe izinto ezifanayo kanye nosayizi njengengxenye yokuqala ukuqinisekisa ukusebenza kahle kwenjini.
Indima eyinhloko yesembozo se-valve yemoto ihlanganisa izici ezilandelayo:
Ukuvala nokuvikela: isembozo se-valve sisetshenziselwa ukumboza uhlelo lwe-valve ukuvimbela uthuli, ukungcola, imfucumfucu kanye nokunye ukungcola ukuthi kungangeni ku-valve, ngaleyo ndlela kuvikelwe izingxenye ze-valve drive kanye nama-valve bearings, futhi kuqinisekiswe indawo enhle yokusebenza yezingxenye zangaphakathi zenjini.
Ukugcoba nokuvimbela uthuli: Isembozo se-valve sivame ukwakha indawo evaliwe enazo zonke izingxenye zenjini ukuqinisekisa ukugcotshwa nokuvikelwa kwezingxenye zangaphakathi zenjini. Ukuvalwa kwayo kubaluleke kakhulu ekusebenzeni okuvamile kwenjini, ukugcotshwa, ukuvikelwa kanye nokuvikelwa kothuli.
Lungisa ukungenisa umoya enjinini: Kwezinye izimo, isembozo seValve siqukethe ne-Positive Crankcase Ventilation Valve (PCV), enendima yokulawula inani lentuthu kawoyela ekhiqizwa uhlelo lokungenisa umoya enjinini, kanye nokunqamula ukungenisa umoya lapho injini ishisa ukuze kuvinjelwe ukwehluleka njengokuqhuma kwe-crankcase.
Izinketho zezinto: Izimbozo zamavalvu zivame ukwenziwa ngezinto zensimbi, izinto ezivamile zifaka phakathi i-aluminium alloy kanye ne-cast iron. Izimbozo zamavalvu e-aluminium alloy zilula futhi zinokufudumeza okuhle, kuyilapho izimbozo zamavalvu ensimbi aqinile zinamandla nokuqina okuphezulu.
Izincomo zokulungisa nokufaka esikhundleni: Izimbozo zamavalvu zidinga ukuhlolwa nokugcinwa njalo, ikakhulukazi ukuhlola ukuqina kwazo nokufakwa kwazo. Uma isivalo sevalvu sikhululekile noma sivalwe kabi, kungaholela ekungasebenzi kahle kwevalvu, okuzothinta ukusebenza kanye nokuphila kwenjini. Lapho kufakwa esikhundleni sebhonethi, kufanele kusetshenziswe izinto ezifanayo kanye nosayizi njengengxenye yokuqala ukuqinisekisa ukusebenza kahle kwenjini.
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