大連車載空調由壓(ya)(ya)(ya)(ya)縮(suo)機(ji)、冷(leng)凝(ning)(ning)器(qi)(qi)(qi)、節(jie)(jie)流(liu)(liu)元件(jian)、蒸(zheng)發(fa)器(qi)(qi)(qi)、風機(ji)及必要的(de)(de)(de)控制(zhi)(zhi)部件(jian)構成(cheng)(cheng)(cheng)，用于調(diao)節(jie)(jie)車(che)(che)(che)內(nei)(nei)(nei)溫(wen)度(du)、濕度(du)，給乘員提(ti)供舒適環境的(de)(de)(de)空(kong)(kong)(kong)(kong)(kong)調(diao)系統。當(dang)(dang)壓(ya)(ya)(ya)(ya)縮(suo)機(ji)工作時，壓(ya)(ya)(ya)(ya)縮(suo)機(ji)吸入(ru)(ru)從蒸(zheng)發(fa)器(qi)(qi)(qi)出來的(de)(de)(de)低(di)溫(wen)低(di)壓(ya)(ya)(ya)(ya)的(de)(de)(de)氣(qi)(qi)(qi)(qi)態(tai)制(zhi)(zhi)冷(leng)劑(ji)(ji)，經(jing)壓(ya)(ya)(ya)(ya)縮(suo)，制(zhi)(zhi)冷(leng)劑(ji)(ji)的(de)(de)(de)溫(wen)度(du)和(he)(he)壓(ya)(ya)(ya)(ya)力(li)升高，并被送入(ru)(ru)冷(leng)凝(ning)(ning)器(qi)(qi)(qi)。在(zai)冷(leng)凝(ning)(ning)器(qi)(qi)(qi)內(nei)(nei)(nei)，高溫(wen)高壓(ya)(ya)(ya)(ya)的(de)(de)(de)氣(qi)(qi)(qi)(qi)態(tai)制(zhi)(zhi)冷(leng)劑(ji)(ji)把熱(re)(re)量傳遞給經(jing)過冷(leng)凝(ning)(ning)器(qi)(qi)(qi)的(de)(de)(de)車(che)(che)(che)外(wai)(wai)(wai)(wai)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)而(er)(er)液(ye)化，變(bian)成(cheng)(cheng)(cheng)液(ye)體。液(ye)態(tai)制(zhi)(zhi)冷(leng)劑(ji)(ji)流(liu)(liu)經(jing)節(jie)(jie)流(liu)(liu)裝置時，溫(wen)度(du)和(he)(he)壓(ya)(ya)(ya)(ya)力(li)降低(di)，并進(jin)入(ru)(ru)蒸(zheng)發(fa)器(qi)(qi)(qi)。在(zai)蒸(zheng)發(fa)器(qi)(qi)(qi)內(nei)(nei)(nei)，低(di)溫(wen)低(di)壓(ya)(ya)(ya)(ya)的(de)(de)(de)液(ye)態(tai)制(zhi)(zhi)冷(leng)劑(ji)(ji)吸收經(jing)過蒸(zheng)發(fa)器(qi)(qi)(qi)的(de)(de)(de)車(che)(che)(che)內(nei)(nei)(nei)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)的(de)(de)(de)熱(re)(re)量而(er)(er)蒸(zheng)發(fa)，變(bian)成(cheng)(cheng)(cheng)氣(qi)(qi)(qi)(qi)體。氣(qi)(qi)(qi)(qi)體又被壓(ya)(ya)(ya)(ya)縮(suo)機(ji)吸入(ru)(ru)進(jin)行(xing)下一(yi)輪循(xun)(xun)(xun)(xun)環。這(zhe)樣(yang)，通過制(zhi)(zhi)冷(leng)劑(ji)(ji)在(zai)系統內(nei)(nei)(nei)的(de)(de)(de)循(xun)(xun)(xun)(xun)環，不斷吸收車(che)(che)(che)內(nei)(nei)(nei)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)的(de)(de)(de)熱(re)(re)量并排(pai)到車(che)(che)(che)外(wai)(wai)(wai)(wai)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)中，使車(che)(che)(che)內(nei)(nei)(nei)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)的(de)(de)(de)溫(wen)度(du)逐漸下降。內(nei)(nei)(nei)循(xun)(xun)(xun)(xun)環可(ke)以提(ti)高空(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)果，相當(dang)(dang)于把室內(nei)(nei)(nei)冷(leng)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)再(zai)制(zhi)(zhi)冷(leng)，空(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)果當(dang)(dang)然更好了。不過長時間使用內(nei)(nei)(nei)循(xun)(xun)(xun)(xun)環會使車(che)(che)(che)內(nei)(nei)(nei)的(de)(de)(de)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)質(zhi)量降低(di)，可(ke)能(neng)讓人感覺(jue)頭昏(hun)腦(nao)漲(zhang)。應(ying)當(dang)(dang)開(kai)一(yi)會兒內(nei)(nei)(nei)循(xun)(xun)(xun)(xun)環就使用幾分鐘外(wai)(wai)(wai)(wai)循(xun)(xun)(xun)(xun)環，讓新(xin)鮮空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)進(jin)入(ru)(ru)車(che)(che)(che)內(nei)(nei)(nei)，改善(shan)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)質(zhi)量。如(ru)果空(kong)(kong)(kong)(kong)(kong)調(diao)內(nei)(nei)(nei)外(wai)(wai)(wai)(wai)循(xun)(xun)(xun)(xun)環開(kai)關是機(ji)械式的(de)(de)(de)撥桿(gan)而(er)(er)非按鈕，可(ke)以把撥桿(gan)放在(zai)內(nei)(nei)(nei)外(wai)(wai)(wai)(wai)循(xun)(xun)(xun)(xun)環的(de)(de)(de)中間，讓車(che)(che)(che)外(wai)(wai)(wai)(wai)空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)適量進(jin)入(ru)(ru)，既(ji)能(neng)提(ti)升空(kong)(kong)(kong)(kong)(kong)氣(qi)(qi)(qi)(qi)質(zhi)量，又能(neng)提(ti)高空(kong)(kong)(kong)(kong)(kong)調(diao)效(xiao)果。此(ci)外(wai)(wai)(wai)(wai)，在(zai)使用空(kong)(kong)(kong)(kong)(kong)調(diao)除(chu)霜除(chu)霧時，要使用外(wai)(wai)(wai)(wai)循(xun)(xun)(xun)(xun)環才有效(xiao)。