Iyini uphawu lwe-valve yemoto
Izivalo zikawoyela zamavalvu ziwuhlobo lwesivalo sikawoyela, ngokuvamile esenziwa ngokuhlanganisa uhlaka lwangaphandle kanye nerabha ye-fluoro ndawonye. Iziphethu eziziqinisayo noma izintambo zensimbi zifakwa endaweni yokungena kwesivalo sikawoyela ukuze kuvalwe izinduku zokuqondisa zamavalvu enjini.
Kungavimbela uwoyela wenjini ukuthi ungene emapayipini okungenisa kanye nawokukhipha umoya, kugweme ukulahleka uwoyela, kuvimbele ingxube kaphethiloli nomoya kanye nokuvuza kwegesi yokukhipha umoya, futhi kuvimbele uwoyela wenjini ukuthi ungene ekamelweni lokushisa. Ngenxa yokuthi ihlangana nophethiloli namafutha enjini emazingeni okushisa aphezulu, izinto ezinokumelana nokushisa okuhle kanye nokumelana nowoyela ngokuvamile ziyi-fluororubber.
Isivalo sikawoyela sevalvu esonakele singabangela izinkinga eziningi. Isibonelo, uwoyela wenjini ungangena kwisilinda eduze kwenduku yokuqondisa ivalvu, okubangela ukufakwa kwekhabhoni kuma-spark plugs, ukuwohloka kwezimo zokusebenza, noma ngisho nokwehluleka ukusebenza, kunciphisa amandla enjini. Ukuthambekela kwevalvu kungaholela ekuvalekeni kwesilinda okungekuhle, ukwehla kwengcindezi yesilinda, amandla enjini abuthakathaka, kanye nokusetshenziswa kukawoyela okusheshayo. Ngesikhathi sokushayela ibanga elide, injini ingase yonakale ngenxa yokuntuleka kukawoyela.
Uma imoto inenkinga yokusheshisa noma ikhipha intuthu eluhlaza okwesibhakabhaka, kungenzeka ukuthi uphawu lwe-valve lugugile. Kunezizathu eziningi zokuguga. Izinto zangaphandle ezixutshwe ngesikhathi sokufakwa, uthuli, ukuhlanganiswa okubi, indlela yokufaka engalungile, ukucubungula okungalingani kokumboza, njll. konke kungaholela ekuvuzeni. Ukucindezela ngokweqile enqubweni yokukhetha kungabangela ukuluma kwegebe nomoya uhlangane, okuholela ekucindezelweni kwe-adiabatic kanye nokushiswa kophawu. Ukunyakaza okuphindaphindayo okuphezulu kungabangela uphawu ukuthi lushise, kanti ukugaya okomile kanye nothuli oluzungezile kungabangela ukuguguleka okungavamile kwendandatho yokubopha kanye nokugqwala emgodini wokubopha, okuzoba nomthelela futhi. Ukukhetha okungalungile kwezinto zokuqondisa izingxenye zokusekela ekwakhiweni, ukuhlukaniswa okungafanele kwama-friction pair, ama-engeli angafanele omhlahlandlela wentambo ekugcineni komgqomo wesilinda, i-piston kanye nesilinda, ama-engeli angafanele omhlahlandlela wokufaka uphawu, ukuguguleka okungafanele kwendawo eshelelayo, ukufakelwa kwe-electroplating okungalingani, kanye nokuguguleka okunganele komgqomo wokubopha konke kungalimaza indandatho yokubopha. Ngaphezu kwalokho, izinkinga ngomkhiqizo ngokwawo noma ukuvalwa okungafanele kanye nokugcinwa, kanye nokuwohloka kanye nokuwohloka kwezinto zokubopha ngenxa yokushisa okuphezulu ngesikhathi sokuthuthwa, nakho kungaholela ekugugeni.
Ukufakwa nokufakwa esikhundleni kwezivalo zikawoyela we-valve kuhilela izinyathelo ezithile. Uma uhlukanisa, qala ususe i-camshaft kanye ne-hydraulic tanner. Sebenzisa isikrufu se-spark plug ukususa izivalo ze-spark. Lungisa i-piston yesilinda ehambisanayo esikhungweni esifile phezulu. Sebenzisa amabhawodi ukufaka ithuluzi lokucindezela intwasahlobo ekhanda lesilinda. Xhuma i-air compressor. Sebenzisa i-mandrod enentambo bese ucindezela phansi isipilingi se-valve. Susa isipilingi. Thepha kancane esihlalweni sesipilingi se-valve. Susa ibhlogo lokukhiya i-valve. Sebenzisa ithuluzi ukukhipha isipilingi sikawoyela we-valve stem. Uma ufaka, i-sleeve yepulasitiki kufanele ifakwe esipilingini se-valve ukuvimbela umonakalo wesipilingi sikawoyela esisha. Faka kancane ungqimba lwamafutha enjini ezindebeni zesipilingi sikawoyela. Faka isipilingi sikawoyela ethuluzini bese ulicindezela kancane kumhlahlandlela we-valve. Ngaphambi kokufaka ama-valve okungenisa nokukhipha umoya, faka ungqimba lwamafutha enjini esipilini se-valve.
Ekuphetheni, yize uphawu lukawoyela lwe-valve luncane, umsebenzi walo ubalulekile. Uma kuvela inkinga, kufanele ixazululwe ngokushesha.
Izingxenye ze-valve assembly zifaka phakathi ama-valve, iziphethu zama-valve, ama-valve lock clamps, iziqondiso zama-valve, amasongo esihlalo sama-valve, izivalo ze-valve stem, izihlalo zama-valve, njll.
Amavalvu ayizingxenye ezibalulekile ezilawula ukungena kanye nokukhipha umoya, futhi ahlukaniswe izingxenye ezintathu: amakhanda amavalvu, izihlalo zamavalvu, kanye neziqu zamavalvu. Uma uklama ikhanda lamavalvu ukuze lithwale amandla akhiqizwa yingcindezi yokushisa, ukuphakama kobuso bevalvu kuyacatshangelwa. Isiqu samavalvu sisetshenziselwa ukuqondisa ngaphakathi komhlahlandlela wamavalvu. Ukuze kugwenywe ukuguguleka, indawo embozwe nge-chrome ivame ukusetshenziswa.
Isiphethu sevalvu sinesibopho sokuvala ivalvu ngendlela elawulekayo ukuvimbela ukudlidliza ngemva kokugxuma kwevalvu. Isimo sayo esijwayelekile sesakhiwo siyisiphethu esiyisilinda esilinganayo.
Umhlahlandlela wevalvu usetshenziselwa ukuqinisekisa ukuthi ivalvu isenkabeni yesihlalo sevalvu nokudlulisa ukushisa ekhanda lesilinda ngesiqu sevalvu. Lapho uyifaka, kufanele kushiywe indawo evulekile.
I-clamp yokukhiya i-valve inesibopho sokuxhuma isihlalo sesipilingi se-valve kanye ne-valve. Ihlukaniswe ngohlobo lokubambelela kanye nohlobo lokungabambeleli. Uhlobo lokubambelela lufanelekela kakhulu izinjini ezinejubane eliphezulu kakhulu lokujikeleza.
Isihlalo sevalvu sisebenza ukuhlukanisa igumbi lokusha nephaseji yegesi. Ukushisa kudluliselwa kusuka kuvalvu kuya ekhanda lesilinda ngale ndawo. Ububanzi bomphezulu walo ngokuvamile buyi-1.2 kuya ku-2.0mm. I-Engela izothinta umphumela wokuvala kanye nesimo sokuguguleka.
Ububanzi bekhanda levalvu yokungenisa buyi-15% kuya ku-30% bukhulu kunevalvu yokukhipha umoya ukuze kwandiswe umthamo wokungenisa umoya. Izinjini zezimoto zanamuhla ezisebenza kahle kakhulu zivame ukusebenzisa amavalvu amathathu, amane noma amahlanu ngesilinda ngayinye. Phakathi kwazo, izinjini zamavalvu amane zisetshenziswa kabanzi, ezingandisa umthamo womoya wokungenisa umoya, i-torque namandla, zinciphise amandla angenawo umoya wokunyakaza kwamavalvu, futhi ikakhulukazi zisebenzisa igumbi lokushisa elinomfanekiso we-marque, elihambisana nenqubo yokushisa.
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Inkampani Zhuo Meng Shanghai Auto Co., Ltd. uzibophezele ekuthengiseni i-MG&I-MAXUSizingxenye zezimoto zamukelekile ukuthenga.
