節(jie)溫(wen)器是控(kong)制冷卻(que)液流(liu)動(dong)(dong)路徑的閥門。是一種自動(dong)(dong)調溫(wen)裝置,通常含有感(gan)溫(wen)組(zu)件,借(jie)著(zhu)熱脹或(huo)冷縮來(lai)開(kai)啟、關(guan)掉空氣(qi)(qi)、氣(qi)(qi)體(ti)或(huo)液體(ti)的流(liu)動(dong)(dong)。
節溫器(qi)的安裝(zhuang)方法是:
1、找到節溫器的(de)安裝位置;
2、放出防凍(dong)液,松開(kai)螺絲拆下上(shang)蓋并(bing)把(ba)舊墊(dian)清理干凈;
3、給(gei)節溫器打(da)膠(jiao),增加密(mi)封總厚度,注意(yi)膠(jiao)不(bu)(bu)要太(tai)少也不(bu)(bu)要太(tai)多,更不(bu)(bu)要弄到(dao)中間膠(jiao)墊上;
4、把打好膠(jiao)的(de)節溫器安裝(zhuang)到進氣支(zhi)管上,震動使膠(jiao)填(tian)滿(man)安裝(zhuang)檐(yan)并粘牢固;
5、上好(hao)螺絲,加滿防凍液啟(qi)動(dong)即可,注意(yi)要使節(jie)溫器打開循環一次,檢查(cha)有無滲漏(lou)現(xian)象。節(jie)溫器是控制冷卻液流動(dong)路徑的閥門,其借著熱(re)脹或(huo)冷縮(suo)來(lai)開啟(qi)、關掉空氣(qi)、氣(qi)體或(huo)液體的流動(dong)。
汽車(che)節(jie)溫(wen)(wen)(wen)(wen)器(qi)(qi)作(zuo)用是:根(gen)據冷(leng)(leng)卻水(shui)溫(wen)(wen)(wen)(wen)度(du)(du)(du)的(de)高低自(zi)動(dong)調節(jie)進入散(san)(san)熱(re)器(qi)(qi)的(de)水(shui)量,改變(bian)水(shui)的(de)循(xun)環(huan)范圍(wei),以(yi)調節(jie)冷(leng)(leng)卻系的(de)散(san)(san)熱(re)能(neng)力,保證發(fa)動(dong)機(ji)在(zai)合適(shi)的(de)溫(wen)(wen)(wen)(wen)度(du)(du)(du)范圍(wei)內(nei)工作(zuo)。當冷(leng)(leng)卻溫(wen)(wen)(wen)(wen)度(du)(du)(du)低于規定值時,節(jie)溫(wen)(wen)(wen)(wen)器(qi)(qi)感溫(wen)(wen)(wen)(wen)體(ti)內(nei)的(de)精(jing)致石蠟(la)(la)呈固態,節(jie)溫(wen)(wen)(wen)(wen)器(qi)(qi)閥在(zai)彈簧的(de)作(zuo)用下關閉發(fa)動(dong)機(ji)與(yu)散(san)(san)熱(re)器(qi)(qi)之(zhi)間的(de)通道,冷(leng)(leng)卻液(ye)經(jing)(jing)(jing)水(shui)泵返回發(fa)動(dong)機(ji)。當冷(leng)(leng)卻液(ye)溫(wen)(wen)(wen)(wen)度(du)(du)(du)達(da)到規定值后(hou),石蠟(la)(la)開始(shi)融化(hua)逐漸變(bian)為液(ye)體(ti),體(ti)積隨之(zhi)增大并壓迫橡(xiang)(xiang)膠管使其收縮,在(zai)橡(xiang)(xiang)膠管收縮的(de)同(tong)時對推桿(gan)作(zuo)用以(yi)向上的(de)推力,冷(leng)(leng)卻液(ye)經(jing)(jing)(jing)由(you)散(san)(san)熱(re)器(qi)(qi)和(he)節(jie)溫(wen)(wen)(wen)(wen)器(qi)(qi)閥,再經(jing)(jing)(jing)水(shui)泵流(liu)回發(fa)動(dong)機(ji)。
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