機(ji)(ji)(ji)油(you)(you)(you)(you)(you)散熱(re)(re)器又稱油(you)(you)(you)(you)(you)冷(leng)(leng)器。是(shi)應(ying)用(yong)在柴油(you)(you)(you)(you)(you)發(fa)動(dong)(dong)機(ji)(ji)(ji)上(shang)的機(ji)(ji)(ji)油(you)(you)(you)(you)(you)冷(leng)(leng)卻(que)(que)裝置。按照冷(leng)(leng)卻(que)(que)方式,油(you)(you)(you)(you)(you)冷(leng)(leng)器可(ke)以(yi)分(fen)為水(shui)冷(leng)(leng)和風冷(leng)(leng)兩(liang)種。機(ji)(ji)(ji)油(you)(you)(you)(you)(you)散熱(re)(re)器的作(zuo)用(yong)是(shi)冷(leng)(leng)卻(que)(que)潤(run)滑(hua)油(you)(you)(you)(you)(you),保持(chi)油(you)(you)(you)(you)(you)溫在正常(chang)工(gong)作(zuo)范圍之(zhi)內(nei)(nei)。在大功率的強化發(fa)動(dong)(dong)機(ji)(ji)(ji)上(shang),由于熱(re)(re)負荷大,發(fa)動(dong)(dong)機(ji)(ji)(ji)運轉時,由于機(ji)(ji)(ji)油(you)(you)(you)(you)(you)粘(zhan)度隨溫度升(sheng)高而變稀,降低(di)了(le)潤(run)滑(hua)能力(li),因此必(bi)須裝用(yong)機(ji)(ji)(ji)油(you)(you)(you)(you)(you)散熱(re)(re)器。發(fa)動(dong)(dong)機(ji)(ji)(ji)在工(gong)作(zuo)時,機(ji)(ji)(ji)油(you)(you)(you)(you)(you)會在發(fa)動(dong)(dong)機(ji)(ji)(ji)內(nei)(nei)各(ge)個部件(jian)表面形成一層油(you)(you)(you)(you)(you)膜,這樣可(ke)以(yi)避免發(fa)動(dong)(dong)機(ji)(ji)(ji)內(nei)(nei)各(ge)個部件(jian)直(zhi)接(jie)接(jie)觸產生摩擦。如果發(fa)動(dong)(dong)機(ji)(ji)(ji)內(nei)(nei)各(ge)個部件(jian)直(zhi)接(jie)接(jie)觸產生了(le)摩擦,會瞬間產生大量(liang)熱(re)(re)量(liang),如果發(fa)動(dong)(dong)機(ji)(ji)(ji)溫度過高,會影響發(fa)動(dong)(dong)機(ji)(ji)(ji)的正常(chang)運行。
機油散熱器的作用:
1。汽車未暖(nuan)機(ji)時,即冷啟動時,機(ji)油散(san)熱(re)器(qi)可以吸收冷水中的熱(re)量,從而(er)使機(ji)油發(fa)熱(re)更快(kuai);
2.機油(you)溫度高時(shi),機油(you)散熱器可以(yi)用冷(leng)卻(que)水冷(leng)卻(que);
3.如果機油散熱器漏油,會導致方向盤沉重,轉向困難。
以(yi)走(zou)量車型奔馳E260L來看(kan),全(quan)系換裝了(le)2.0升低(di)功率(lv)版發(fa)動(dong)(dong)(dong)機(ji)(ji)+48V輕混系統,其發(fa)動(dong)(dong)(dong)機(ji)(ji)最大功率(lv)為145千瓦,峰值(zhi)扭矩(ju)為320牛·米(mi);而(er)此前(qian)在(zai)售(shou)的E260L搭載的1.5升+48V輕混系統發(fa)動(dong)(dong)(dong)機(ji)(ji)最大功率(lv)為135千瓦,峰值(zhi)扭矩(ju)為280牛·米(mi),從(cong)數(shu)據上就可以(yi)看(kan)出(chu)(chu)來,搭載了(le)2.0升發(fa)動(dong)(dong)(dong)機(ji)(ji)+48V輕混系統的新款E260L在(zai)動(dong)(dong)(dong)力參數(shu)上要表(biao)現(xian)(xian)更出(chu)(chu)色,所(suo)以(yi)在(zai)平時駕駛(shi)的時候(hou),新款車型也不會像老款車型那(nei)樣(yang)出(chu)(chu)現(xian)(xian)干吼不走(zou)的情況。
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