Yintoni ukugoba i-thermostat yemoto
Ukugoba kwe-automobile thermostat yinto yokuba i-thermostat ikhubaza phantsi kweempembelelo zokwandiswa kwe-thermal kunye nokunciphisa. Ii-thermostats zenziwa ngamacwecwe amancinci esinyithi. Xa ishushu, ishidi lesinyithi liya kugotywa ngubushushu. Oku kugoba kudluliselwa kubafowunelwa be-thermostat ngokuqhuba ukushisa, ngaloo ndlela kuvelisa ubushushu obuzinzile.
Isebenza njani ithermostat
I-thermostat isebenzisa into yokufudumala yombane ukufudumeza ishidi lesinyithi, elibangela ukuba lifudumale kwaye ligobe. Oku kugoba kuhanjiswa ngokuqhutywa kobushushu kunxibelelwano lwe-thermostat, okukhokelela ekuphumeni kobushushu obuzinzileyo. Le nto yokugoba phantsi kobushushu yaziwa ngokuba yi "specific heat effect", oku kukwandiswa kwendalo kunye nokucutheka kwezinto ngexesha lokufudumeza okanye ukupholisa.
Uhlobo lwethermostat
Kukho iindlela ezintathu eziphambili zee-thermostats zeemoto: i-bellows, i-bimetal sheets kunye ne-thermistor. Uhlobo ngalunye lwe-thermostat lunemigaqo yalo ethile yokusebenza kunye neemeko zesicelo:
Bellows : Ubushushu bulawulwa yi-deformation ye-bellows xa ubushushu buguquka.
Iphepha le-bimetallic : usebenzisa indibaniselwano yamaphepha esinyithi amabini anee-coefficients ezahlukeneyo zokwandisa i-thermal, isiphaluka silawulwa ngokugoba xa ubushushu buguquka.
thermistor : Ixabiso lokuchasana liyatshintsha kunye neqondo lobushushu ukulawula isiphaluka kunye nokucima.
Imeko yokusetyenziswa kwe-thermostat
I-Thermostat isetyenziswa kakhulu kwinkqubo yomoya womoya wemoto, owona msebenzi uphambili kukuva ubushushu bomphezulu we-evaporator, ukuze kulawulwe ukuvulwa nokuvalwa kwecompressor. Xa iqondo lokushisa ngaphakathi kwemoto lifikelela kwixabiso elimiselweyo, i-thermostat iya kuqalisa i-compressor ukuqinisekisa ukuba umoya uhamba kakuhle nge-evaporator ukuphepha iqhwa; Xa iqondo lobushushu lihla, i-thermostat icima i-compressor, igcina ubushushu ngaphakathi kwemoto bulungelelene.
Umsebenzi we-thermostat kukutshintsha indlela yokujikeleza kwesipholisi. Iimoto ezininzi zisebenzisa ii-injini ezipholiswe ngamanzi, ezisusa ubushushu ngokujikeleza okuqhubekayo kwesisipholisi kwi-injini. Isipholisi kwi-injini sineendlela ezimbini zokujikeleza, enye ngumjikelo omkhulu kwaye enye ngumjikelo omncinci.
Xa i-injini iqala nje, ukujikeleza kwesipholisi kuncinci, kwaye into yokupholisa ayiyi kukhupha ubushushu kwiradiyetha, evumela ukuba i-injini ifudumale ngokukhawuleza. Xa i-injini ifikelela kubushushu obuqhelekileyo bokusebenza, into yokupholisa iyakujikeleziswa kwaye ichithwe kwiradiyetha. I-thermostat inokutshintsha indlela yomjikelo ngokobushushu besipholisi, ngaloo ndlela iphucula ukusebenza kakuhle kwe-injini.
Xa i-injini iqala, ukuba isisipholisi besijikeleza, oko kuya kukhokelela ekwenyukeni kancinci kobushushu be-injini, kwaye amandla e-injini aya kuba buthathaka kwaye ukusetyenziswa kwamafutha kuya kuba phezulu. Kwaye uluhlu oluncinci lwesipholisi esijikelezayo linokuphucula izinga lobushushu be-injini.
Ukuba i-thermostat yonakele, ubushushu bamanzi e-injini bunokuba phezulu kakhulu. Ngenxa yokuba isisipholisi sinokuhlala sikujikelezo oluncinci kwaye singabudlulisi ubushushu kwiradiyetha, ubushushu bamanzi buya kunyuka.
Ngamafutshane, indima ye-thermostat kukulawula indlela yokujikeleza kwesipholisi, ngaloo ndlela kuphuculwe ukusebenza kakuhle kwe-injini kunye nokuphepha ubushushu bamanzi obugqithisileyo. Ukuba ufumana iingxaki zesithuthi, qwalasela ukujonga ukuba i-thermostat isebenza ngokufanelekileyo.
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