Yintoni ukugoba kwe-thermostat yemoto
Ukugoba kwe-thermostat yemoto yinto yokuba i-thermostat iguquguquke phantsi kwempembelelo yokwanda nokuncipha kobushushu. Ii-thermostat zihlala zenziwe ngamashiti amancinci esinyithi. Xa zishushu, ishiti yesinyithi iya kugoba bubushushu. Oku kugoba kudluliselwa kwiindawo ezidityanisiweyo ne-thermostat ngokuqhuba ubushushu, ngaloo ndlela kuvelisa ubushushu obuzinzileyo.
Indlela esebenza ngayo i-thermostat
I-thermostat isebenzisa into yokufudumeza ngombane ukufudumeza ishiti yesinyithi, nto leyo ebangela ukuba ifudumale kwaye igobe. Oku kugoba kudluliselwa ngokuqhutywa kobushushu kwiindawo ezidityaniswe ne-thermostat, nto leyo ebangela ukuba ubushushu bube buzinzile. Le meko yokugoba phantsi kobushushu yaziwa ngokuba yi-"specific heat effect", ethetha ukwanda kwendalo kunye nokucutheka kwezinto ngexesha lokufudumeza okanye ukupholisa.
Uhlobo lwe-thermostat
Kukho iintlobo ezintathu eziphambili ze-thermostats zeemoto: ii-bellows, ii-bimetal sheets kunye ne-thermistor. Uhlobo ngalunye lwe-thermostat lunemigaqo yalo yokusebenza kunye neemeko zokusetyenziswa:
IiBellows : Ubushushu bulawulwa kukuguquka kweebellows xa ubushushu butshintsha.
Ishiti ye-bimetallic : kusetyenziswa indibaniselwano yamaphepha amabini esinyithi anee-coefficients ezahlukeneyo zokwandisa ubushushu, isekethe ilawulwa ngokugoba xa ubushushu butshintsha.
I-thermistor: Ixabiso lokumelana liyatshintsha ngobushushu ukulawula ukuvulwa nokuvalwa kwesekethe.
Imeko yokusetyenziswa kwe-thermostat
I-thermostat isetyenziswa kakhulu kwinkqubo yomoya-moya wemoto, umsebenzi ophambili kukuva ubushushu bomphezulu we-evaporator, ukuze kulawulwe ukuvulwa nokuvalwa kwe-compressor. Xa ubushushu obungaphakathi emotweni bufikelela kwixabiso elimiselweyo, i-thermostat iya kuqalisa i-compressor ukuqinisekisa ukuba umoya uhamba kakuhle kwi-evaporator ukuze kuthintelwe iqhwa; Xa ubushushu buhla, i-thermostat iyayicima i-compressor, igcine ubushushu obungaphakathi emotweni bulungelelene.
Umsebenzi we-thermostat kukutshintsha indlela yokujikeleza kwe-coolant. Uninzi lweemoto zisebenzisa iinjini ezipholisiweyo ngamanzi, ezikhupha ubushushu ngokujikeleza okuqhubekayo kwe-coolant enjinini. I-coolant enjinini ineendlela ezimbini zokujikeleza, enye ingumjikelo omkhulu kwaye enye ingumjikelo omncinci.
Xa injini iqala nje, ukujikeleza kwe-coolant kuncinci, kwaye i-coolant ayizukuchitha ubushushu nge-radiator, nto leyo enceda ekufudumaleni ngokukhawuleza kwenjini. Xa injini ifikelela kubushushu obuqhelekileyo bokusebenza, i-coolant iya kujikeleziswa kwaye ichitheke nge-radiator. I-thermostat inokutshintsha indlela yomjikelo ngokweqondo lobushushu le-coolant, ngaloo ndlela iphucula ukusebenza kakuhle kwenjini.
Xa injini iqala, ukuba i-coolant ibijikeleza, kuya kukhokelela ekunyukeni kancinci kancinci kobushushu benjini, kwaye amandla enjini aya kuba buthathaka kwaye ukusetyenziswa kwepetroli kuya kuba phezulu. Kwaye uluhlu oluncinci lwe-coolant ejikelezayo lunokuphucula izinga lokunyuka kobushushu benjini.
Ukuba i-thermostat yonakele, ubushushu bamanzi enjini bunokuba phezulu kakhulu. Ngenxa yokuba i-coolant isenokuhlala ijikeleza kancinci kwaye ingadlulisi ubushushu kwi-radiator, ubushushu bamanzi buya kunyuka.
Ngamafutshane, indima ye-thermostat kukulawula indlela yokujikeleza kwe-coolant, ngaloo ndlela iphucula ukusebenza kakuhle kwenjini kwaye iphephe ubushushu bamanzi obugqithisileyo. Ukuba uneengxaki zesithuthi, cinga ngokuqinisekisa ukuba i-thermostat isebenza kakuhle.
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