天津發(fa)(fa)動(dong)機冷(leng)卻液(ye)(ye)(ye)的(de)工作原理是將(jiang)熱(re)(re)量從(cong)發(fa)(fa)動(dong)機的(de)高(gao)(gao)溫(wen)部件傳(chuan)遞到(dao)低溫(wen)部件，以防止發(fa)(fa)動(dong)機過熱(re)(re)。它通過使用水(shui)和防凍劑來實(shi)現這一目(mu)的(de)。水(shui)在被加(jia)熱(re)(re)到(dao)高(gao)(gao)溫(wen)后，長(chang)城冷(leng)卻液(ye)(ye)(ye)代(dai)理商，會變成液(ye)(ye)(ye)態(tai)，稱為(wei)(wei)冷(leng)卻液(ye)(ye)(ye)。冷(leng)卻液(ye)(ye)(ye)會流經發(fa)(fa)動(dong)機的(de)所(suo)有(you)部件，包(bao)括(kuo)氣(qi)缸、曲軸箱、變速器(qi)、傳(chuan)動(dong)軸等，將(jiang)熱(re)(re)量帶走。防凍劑則扮(ban)演著(zhu)冷(leng)卻液(ye)(ye)(ye)的(de)角色，它能(neng)夠(gou)防止冷(leng)卻液(ye)(ye)(ye)在低溫(wen)下結冰，保(bao)定長(chang)城冷(leng)卻液(ye)(ye)(ye)，從(cong)而(er)破壞發(fa)(fa)動(dong)機的(de)部件。當冷(leng)卻液(ye)(ye)(ye)溫(wen)度升高(gao)(gao)時，它會重新(xin)變成液(ye)(ye)(ye)態(tai)，這個(ge)過程稱為(wei)(wei)循環。

發(fa)動機(ji)冷卻(que)液是保持(chi)發(fa)動機(ji)正常工作溫度(du)的重要液體，其更(geng)換(huan)周期與車輛(liang)使用狀況、環境(jing)溫度(du)等因素(su)有關。一般來說，建議(yi)每隔2-3年或(huo)者行駛4-6萬公里更(geng)換(huan)一次發(fa)動機(ji)冷卻(que)液。但(dan)是，如果車輛(liang)經常在高溫環境(jing)下行駛，或(huo)者發(fa)動機(ji)冷卻(que)液出現變(bian)質、變(bian)色(se)、變(bian)味等情況，應該及時(shi)更(geng)換(huan)。另外，更(geng)換(huan)發(fa)動機(ji)冷卻(que)液時(shi)，應該選擇與原車型號相匹配(pei)的冷卻(que)液，長城冷卻(que)液總(zong)代理，以免對(dui)發(fa)動機(ji)造成損害。

天津防(fang)凍液(ye)的(de)作(zuo)(zuo)用主要有(you)(you)(you)以(yi)下幾點(dian)：防(fang)止冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)溫度過高：防(fang)凍液(ye)可以(yi)有(you)(you)(you)效(xiao)(xiao)地(di)防(fang)止冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)內(nei)的(de)溫度過高，長城冷(leng)(leng)卻(que)(que)液(ye)批發，保(bao)護發動(dong)機(ji)和(he)冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)的(de)正常工(gong)作(zuo)(zuo)。防(fang)止冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)結冰：防(fang)凍液(ye)的(de)冰點(dian)低(di)，可以(yi)有(you)(you)(you)效(xiao)(xiao)地(di)防(fang)止冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)在(zai)低(di)溫環(huan)境下結冰，保(bao)護發動(dong)機(ji)和(he)冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)的(de)正常工(gong)作(zuo)(zuo)。防(fang)止冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)腐(fu)蝕：防(fang)凍液(ye)中含有(you)(you)(you)防(fang)腐(fu)劑，可以(yi)有(you)(you)(you)效(xiao)(xiao)地(di)防(fang)止冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)內(nei)的(de)金(jin)屬部件受到(dao)腐(fu)蝕，延長發動(dong)機(ji)和(he)冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)的(de)使(shi)用壽命。保(bao)持冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)內(nei)部清(qing)潔：防(fang)凍液(ye)具(ju)有(you)(you)(you)清(qing)潔作(zuo)(zuo)用，可以(yi)有(you)(you)(you)效(xiao)(xiao)地(di)清(qing)除冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)內(nei)部的(de)污(wu)垢(gou)和(he)雜質，保(bao)持冷(leng)(leng)卻(que)(que)系(xi)(xi)統(tong)(tong)(tong)(tong)內(nei)部的(de)清(qing)潔和(he)暢通(tong)。