Isishwankathelo soLawulo loBushushu beCabin (Umoya opholileyo kwiimoto)

Inkqubo yokupholisa umoya ibalulekile ekulawuleni ubushushu beemoto. Abaqhubi kunye nabakhweli bafuna intuthuzelo kwizithuthi zabo. Umsebenzi ophambili wokupholisa umoya kwiimoto kukulawula ubushushu, ukufuma, kunye nokuhamba komoya ngaphakathi kwigumbi labakhweli ukuze kudalwe indawo yokuqhuba nokukhwela ekhululekileyo. Umgaqo ophambili wokupholisa umoya kwiimoto usekelwe kumgaqo we-thermophysical wokufunxa ubushushu kunye nokufuma okukhulula ubushushu, ngaloo ndlela upholisa okanye ufudumale ikhabhinethi. Xa ubushushu bangaphandle buphantsi, buhambisa umoya oshushu kwikhabhinethi, okwenza umqhubi kunye nabakhweli bazive bebanda kakhulu; xa ubushushu bangaphandle buphezulu, buhambisa umoya opholileyo kwikhabhinethi, okwenza umqhubi kunye nabakhweli bazive bepholile nangakumbi. Ke ngoko, ukupholisa umoya kwiimoto kudlala indima ebalulekileyo ekuvuseleleni umoya kwiikhabhinethi kunye nentuthuzelo yabakhweli. 

1.1 Inkqubo Yesiqhelo Yokuphola Umoya Wesithuthi Esisebenzisa Ipetroli kunye Nomgaqo Wokusebenza Iinkqubo zemveli zokupholisa umoya wesithuthi ezisebenzisa ipetroli ziquka izinto ezine: i-evaporator, i-condenser, i-compressor, kunye ne-expansion valve. I-air conditioner yesithuthi iquka inkqubo yokuphola, inkqubo yokufudumeza, kunye nenkqubo yokungenisa umoya; ezi nkqubo zintathu zenza inkqubo iyonke yokupholisa umoya wesithuthi. Umgaqo wokuphola kwizithuthi zemveli ezisebenzisa ipetroli ubandakanya amanyathelo amane: ukucinezela, ukufutha, ukwandisa, kunye nokufuma. Umgaqo wokufudumeza wezithuthi zemveli ezisebenzisa ipetroli usebenzisa ubushushu obumdaka obuvela kwinjini ukufudumeza igumbi labakhweli. Okokuqala, i-coolant eshushu kakhulu evela kwijakethi yamanzi okupholisa yenjini ingena kwi-heater core. Ifeni ivuthela umoya opholileyo kwi-heater core, kwaye umoya ofudumeleyo emva koko uvuthelwa kwigumbi labakhweli ukuze ufudumale okanye unyibilikise iifestile. I-coolant emva koko ibuyela enjinini emva kokuphuma kwi-heater, igqibezela umjikelo omnye.

1.2 Inkqubo entsha yokupholisa umoya wezithuthi zamandla kunye nomgaqo wokusebenza

Indlela yokufudumeza yezithuthi ezintsha zamandla yahlukile kakhulu kweyezithuthi zemveli ezisebenzisa ipetroli. Izithuthi zemveli ezisebenzisa ipetroli zisebenzisa ubushushu obuchithwa yinjini obudluliselwa kwigumbi labakhweli nge-coolant ukunyusa ubushushu bayo. Nangona kunjalo, izithuthi ezintsha zamandla azinanjini, ngoko ke akukho nkqubo yokufudumeza eqhutywa yinjini. Ke ngoko, izithuthi ezintsha zamandla zisebenzisa ezinye iindlela zokufudumeza. Iindlela ezininzi zokufudumeza umoya opholileyo zezithuthi ezintsha zamandla zichazwe ngezantsi. 

1) I-Positive Temperature Coefficient (PTC) Thermistor Heating: Eyona nto iphambili kwi-PTC yi-thermistor, efudunyezwa ngocingo lokufudumeza, iguqula ngokuthe ngqo amandla ombane abe ngamandla obushushu. Iinkqubo zokufudumeza ezipholileyo zomoya ze-PTC (Potentially Transmitted Central) zithatha indawo ye-heater yesiqhelo kwizithuthi ezisebenzisa ipetroli nge-heater ye-PTC. Ifeni itsala umoya wangaphandle nge-heater ye-PTC, iyifudumeze, ize emva koko ihambise umoya oshushu kwigumbi labakhweli. Ngenxa yokuba isebenzisa umbane ngokuthe ngqo, ukusetyenziswa kwamandla kwezithuthi ezintsha zamandla kuphezulu xa i-heater ivuliwe.

 

2) Isifudumezi samanzi se-PTCukufudumeza: NjengoIsifudumezi somoya se-PTCiinkqubo, iinkqubo ze-PTC ezipholisiweyo ngamanzi zivelisa ubushushu ngokusebenzisa umbane. Nangona kunjalo, inkqubo epholisiweyo ngamanzi iqala ngokufudumeza i-coolant ngeIsifudumezi se-PTCEmva kokuba i-coolant ifudunyezwe ukuya kubushushu obuthile, ifakwa kwi-heater core, apho itshintsha ubushushu nomoya ojikelezileyo. Ifeni emva koko ihambisa umoya ofudumeleyo kwigumbi labakhweli ukuze ifudumale izihlalo. I-coolant ifudunyezwa kwakhona yi-PTC heater, kwaye umjikelo uyaphinda. Le nkqubo yokufudumeza ithembekile kwaye ikhuselekile kuneenkqubo ze-PTC ezipholileyo ngomoya.

 

3) Inkqubo Yokuhombisa Umoya Wepompo Yobushushu: Umgaqo wenkqubo yokuhombisa umoya wepompo yobushushu uyafana nowenkqubo yesiqhelo yokuhombisa umoya wemoto. Nangona kunjalo, inkqubo yokuhombisa umoya wepompo yobushushu inokutshintsha phakathi kokufudumeza nokupholisa ikhabhathi. Ngenxa yokuba umoya wepompo yobushushu awusebenzisi ngqo amandla ombane ukufudumeza, ukusebenza kwawo kwamandla kuphezulu kunokwezifudumezi ze-PTC. Okwangoku, iinkqubo zokuhombisa umoya wepompo yobushushu sele zivelisa ngobuninzi kwezinye izithuthi.