I-thermostat iyivalvu elawula indlela yokupholisa. Kuyidivayisi yokulungisa izinga lokushisa okuzenzakalelayo, ngokuvamile equkethe ingxenye ezwa izinga lokushisa, evula futhi ivale ukuhamba komoya, igesi noma uketshezi ngokwandisa okushisayo noma ukufinyela okubandayo.
I-thermostat ilungisa ngokuzenzakalelayo inani lamanzi angena kurediyetha ngokuvumelana nezinga lokushisa lamanzi okupholisa, futhi ishintsha ububanzi bokujikeleza kwamanzi ukuze ilungise amandla okukhipha ukushisa esistimu yokupholisa futhi iqinisekise ukuthi injini isebenza ngaphakathi kwebanga lokushisa elifanele. I-thermostat kufanele igcinwe isesimweni esihle sobuchwepheshe, ngaphandle kwalokho izophazamisa kakhulu ukusebenza okuvamile kwenjini. Uma i-valve eyinhloko ye-thermostat ivulwa sekwephuze kakhulu, izobangela injini ukuba ishise kakhulu; uma i-valve eyinhloko ivulwa kusenesikhathi kakhulu, isikhathi sokufudumala kwenjini sizokwelulwa futhi izinga lokushisa lenjini lizoba phansi kakhulu.
Sekukonke, indima ye-thermostat ukugcina injini ingagodoli kakhulu. Ngokwesibonelo, ngemva kokuba injini isebenza ngendlela evamile, izinga lokushisa lenjini lingase libe phansi kakhulu uma ingekho i-thermostat lapho ushayela ebusika. Ngalesi sikhathi, injini idinga ukumisa okwesikhashana ukungaphenduki kwamanzi ukuze kuqinisekiswe ukuthi izinga lokushisa lenjini aliphansi kakhulu.
Isebenza kanjani i-wax thermostat
I-thermostat eyinhloko esetshenziswa i-thermostat yohlobo lwe-wax. Uma izinga lokushisa lokupholisa liphansi kunevelu eshiwo, upharafini ocolisisiwe osemzimbeni ozwa izinga lokushisa le-thermostat uqinile, futhi ivalve ye-thermostat ivalwa phakathi kwenjini ne-radiator ngaphansi kwesenzo sasentwasahlobo. Isipholile sibuyiselwa enjinini ngepompo yamanzi ukuze sijikeleze kancane enjinini. Lapho izinga lokushisa lesipholile lifinyelela inani elishiwo, upharafini uqala ukuncibilika futhi kancane kancane uba uketshezi, futhi umthamo uyanda futhi ishubhu lerabha liyacindezelwa ukuze linciphe. Lapho ishubhu lenjoloba lishwabana, ukusunduza kuya phezulu kusetshenziswa ku-push rod, futhi induku yokusunduza inomphumela obheke phansi obheke phansi kuvalvu ukuvula ivalvu. Ngalesi sikhathi, isipholile sigeleza kurediyetha kanye nevalvu ye-thermostat, bese sigeleza sibuyele enjinini ngepompo yamanzi umjikelezo omkhulu. Ama-thermostat amaningi ahlelwe epayipini lokuphuma kwamanzi lekhanda lesilinda. Inzuzo yalokhu ukuthi isakhiwo silula, futhi kulula ukususa ama-bubbles emoyeni ohlelweni lokupholisa; okubi ukuthi i-thermostat ivame ukuvulwa futhi ivalwe ngesikhathi sokusebenza, okuholela ekuzuleni.
Isinqumo sezwe
Uma injini iqala ukubanda, uma kukhona amanzi apholisayo aphuma epayipini lokungena legumbi lamanzi elingaphezulu lethangi lamanzi, kusho ukuthi ivalvu eyinhloko ye-thermostat ayikwazi ukuvalwa; lapho izinga lokushisa lamanzi okupholisa enjini lidlula ama-70 ℃, igumbi lamanzi elingaphezulu lethangi lamanzi liyangena Uma kungekho manzi okupholisa aphuma epayipini lamanzi, kusho ukuthi i-valve eyinhloko ye-thermostat ayikwazi ukuvulwa ngokujwayelekile, futhi ukulungiswa kuyadingeka ngalesi sikhathi. Ukuhlolwa kwe-thermostat kungenziwa emotweni ngale ndlela elandelayo:
Ukuhlola ngemva kokuba injini iqalisiwe: Vula ikhava yokungena kwamanzi erediyetha, uma izinga lokupholisa kurediyetha limile, kusho ukuthi i-thermostat isebenza ngokujwayelekile; ngaphandle kwalokho, kusho ukuthi i-thermostat ayisebenzi kahle. Lokhu kungenxa yokuthi lapho izinga lokushisa lamanzi lingaphansi kuka-70 ° C, isilinda sokunweba se-thermostat sisesimweni senkontileka futhi i-valve eyinhloko ivaliwe; lapho izinga lokushisa lamanzi lingaphezu kuka-80 ° C, isilinda sokwandisa siyakhula, i-valve eyinhloko ivula kancane kancane, futhi amanzi ajikelezayo ku-radiator aqala ukugeleza. Lapho izinga lokushisa lamanzi libonisa ngaphansi kuka-70 ° C, uma kukhona amanzi agelezayo epayipini lokungena le-radiator futhi izinga lokushisa lamanzi lifudumele, kusho ukuthi i-valve eyinhloko ye-thermostat ayivalwanga ngokuqinile, okwenza amanzi okupholisa ajikeleze. ngaphambi kwesikhathi.
Hlola ngemva kokukhuphuka kwezinga lokushisa kwamanzi: Esigabeni sokuqala sokusebenza kwenjini, izinga lokushisa lamanzi likhuphuka ngokushesha; lapho izinga lokushisa kwamanzi libonisa ama-80, izinga lokushisa liyancipha, okubonisa ukuthi i-thermostat isebenza ngokujwayelekile. Ngokuphambene nalokho, uma izinga lokushisa lamanzi liye lakhuphuka ngokushesha, lapho ukucindezela kwangaphakathi kufinyelela ezingeni elithile, amanzi abilayo avele echichima ngokuzumayo, okusho ukuthi i-valve eyinhloko inamathele futhi ivule ngokuzumayo.
Lapho igeji yokushisa kwamanzi ibonisa u-70°C-80°C, vula ikhava yerediyetha kanye neswishi yokukhipha amanzi erediyetha, futhi uzwe izinga lokushisa lamanzi ngesandla. Uma kokubili kushisa, kusho ukuthi i-thermostat isebenza ngokujwayelekile; uma izinga lokushisa lamanzi endaweni yokungena kwamanzi e-radiator liphansi, futhi i-radiator igcwele Uma kungekho manzi aphumayo noma amanzi amancane agelezayo epayipini lokungena kwamanzi lekamelo, kusho ukuthi i-valve eyinhloko ye-thermostat ayikwazi ukuvulwa.
I-thermostat ebhajwe noma engavaliwe ngokuqinile kufanele isuswe ukuze ihlanzwe noma ilungiswe, futhi akufanele isetshenziswe ngokushesha.
Ukuhlola okuvamile
Isimo sokushintsha i-thermostat
Isimo sokushintsha i-thermostat
Ngokolwazi, impilo ephephile ye-wax thermostat imvamisa ingu-50,000km, ngakho-ke kudingeka ukuthi ishintshwe njalo ngokuya nempilo yayo ephephile.
Indawo ye-thermostat
Indlela yokuhlola ye-thermostat ukuhlola izinga lokushisa elivulekayo, izinga lokushisa elivuleke ngokugcwele kanye nokuphakanyiswa kwe-valve eyinhloko ye-thermostat kumshini wokushisa oshintshwayo ongaguquki. Uma eyodwa yazo ingahlangabezani nenani elishiwo, i-thermostat kufanele ishintshwe. Isibonelo, ku-thermostat yenjini ye-Santana JV, izinga lokushisa elivulayo le-valve eyinhloko lingu-87°C plus noma susa u-2°C, izinga lokushisa elivuleke ngokugcwele lingu-102°C plus noma khipha 3°C, kanye ne-lift evuleke ngokugcwele. ibe 7mm.
Ukuhlelwa kwe-thermostat
Ngokuvamile, isipholile sesistimu yokupholisa amanzi sigeleza sisuka emzimbeni futhi sigeleze siphuma ekhanda lesilinda. Ama-thermostat amaningi atholakala kulayini we-cylinder head outlet. Inzuzo yaleli lungiselelo ukuthi isakhiwo silula, futhi kulula ukususa ama-bubbles emoyeni ohlelweni lokupholisa amanzi; okubi ukuthi i-oscillation kwenzeka lapho i-thermostat isebenza.
Isibonelo, lapho uqala injini ebandayo ebusika, i-valve ye-thermostat iyavalwa ngenxa yezinga lokushisa eliphansi lokupholisa. Uma isipholile sikumjikelezo omncane, izinga lokushisa liyakhuphuka ngokushesha futhi ivalve ye-thermostat iyavuleka. Ngesikhathi esifanayo, isibambisi sezinga lokushisa eliphansi kurediyetha sigelezela emzimbeni, ukuze isipholile siphole futhi, nevalve ye-thermostat ivalwe futhi. Lapho izinga lokushisa elipholile likhuphuka futhi, i-valve ye-thermostat iyavuleka futhi. Kuze kube yilapho izinga lokushisa lazo zonke izinto ezipholile zizinzile, i-valve ye-thermostat izozinza futhi ngeke ivuleke futhi ivaleke ngokuphindaphindiwe. Isenzo sokuthi i-valve ye-thermostat ivulwa ngokuphindaphindiwe futhi ivalwe ngesikhathi esifushane ibizwa ngokuthi i-thermostat oscillation. Uma kwenzeka le nto, izokwandisa ukusetshenziswa kukaphethiloli wemoto.
I-thermostat ingahlelwa futhi epayipini lokuphuma kwamanzi le-radiator. Leli lungiselelo linganciphisa noma liqede i-oscillation phenomenon ye-thermostat, futhi lingakwazi ukulawula ngokunembile izinga lokushisa le-cooler, kodwa ukwakheka kwayo kuyinkimbinkimbi futhi izindleko ziphezulu, futhi isetshenziswa kakhulu ezimotweni ezisebenza kakhulu nasezimotweni ezivame ukushayela isivinini ebusika. [2]
Ukuthuthukiswa kwe-Wax Thermostat
Ukuthuthukiswa Kwezici ZeDrayivu Elawulwa Izinga lokushisa
I-Shanghai University of Engineering and Technology yenze uhlobo olusha lwe-thermostat ene-thermostat kapharafini njengomzimba wabazali kanye nengxubevange yenkumbulo yomumo wekhoyili eyicylindrical esuselwe entwasahlobo njengengxube yenkumbulo yokulawula izinga lokushisa. I-thermostat ikhetha intwasahlobo lapho izinga lokushisa le-cylinder yokuqala yemoto liphansi, futhi i-compress alloy spring yenza i-valve eyinhloko ivaleke futhi i-valve eyi-axiliary ivuleke umjikelezo omncane. Lapho izinga lokushisa elipholile likhuphukela enanini elithile, ingxubevange yenkumbulo isiphethu iyakhula futhi icindezele ukuchema. I-spring yenza i-valve eyinhloko ye-thermostat ivuleke, futhi njengoba izinga lokushisa elipholile likhula, ukuvulwa kwe-valve eyinhloko kuyanda kancane kancane, futhi i-valve eyisizayo iyavala kancane kancane ukwenza umjikelezo omkhulu.
Njengeyunithi yokulawula izinga lokushisa, ingxubevange yenkumbulo yenza isenzo sokuvula i-valve sishintshe ngokushelela ngokuqhathaniswa nezinga lokushisa, okuzuzisa ukwehlisa umthelela wokucindezeleka okushisa wamanzi okupholisa aphansi kwezinga lokushisa ethangini lamanzi ku-cylinder block lapho injini yomlilo yangaphakathi iqala, futhi ngesikhathi esifanayo kuthuthukisa impilo yesevisi ye-thermostat. Nokho, i-thermostat ilungiswa ngesisekelo se-thermostat ye-wax, futhi ukwakheka kwesakhiwo sesici sokulawula izinga lokushisa kunomkhawulo ngokwezinga elithile.
Ukuthuthukiswa Kwevalvu
I-thermostat inomthelela wokugobhoza oketshezini olupholile. Ukulahlekelwa uketshezi olupholisayo olugeleza ku-thermostat kuholela ekulahlekeni kwamandla enjini evuthayo yangaphakathi, okungenakuzitshwa. I-valve iklanywe njengesilinda esincanyana esinezimbobo odongeni oluseceleni, kanti umzila wokugeleza kwamanzi wakhiwa imbobo eseceleni nembobo ephakathi, kanti ithusi noma i-aluminium isetshenziswa njengempahla ye-valve ukwenza i-valve ibushelelezi, ukuze ukunciphisa ukumelana nokuthuthukisa izinga lokushisa. ukusebenza kahle kwedivayisi.
Ukuthuthukiswa kwesekethe egelezayo yendawo yokupholisa
Isimo esihle sokusebenza esishisayo senjini evuthayo yangaphakathi ukuthi izinga lokushisa lekhanda lesilinda liphansi futhi izinga lokushisa le-cylinder block liphezulu kakhulu. Ngalesi sizathu, isistimu yokupholisa i-split-flow iai iyavela, futhi isakhiwo kanye nokuma kokufakwa kwe-thermostat kudlala indima ebalulekile kuyo. Isakhiwo sokufakwa komsebenzi ohlangene wama-thermostats, ama-thermostats amabili afakwe kubakaki abafanayo, inzwa yokushisa ifakwe ku-thermostat yesibili, i-1/3 yokugeleza okupholisayo isetshenziselwa ukupholisa ibhulokhi yesilinda, 2/3 Isipholile. ukugeleza kusetshenziselwa ukupholisa ikhanda le-cylinder.
