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液壓油無法完全燃燒導(dǎo)致發(fā)動機(jī)工作不好

2023-01-02 閱讀次數(shù):

?當(dāng)一個油腔中的液體開始沸騰時,它將變成粘性液體當(dāng)液體沸騰時,它將進(jìn)入空氣空氣的飽和度通常取決于活塞高度和缸內(nèi)壓當(dāng)系統(tǒng)中有較大的空氣氣壓值和較小的進(jìn)氣量時,系統(tǒng)的壓力值不會太大當(dāng)系統(tǒng)中有較大的空氣時,液壓油將無法完全燃燒,從而導(dǎo)致發(fā)動機(jī)工作不好。

液壓油無法完全燃燒導(dǎo)致發(fā)動機(jī)工作不好(圖1)

此時,必須使用壓縮空氣如果液壓馬達(dá)在工作時產(chǎn)生高壓力,泵還能提供工作;相反,如果空氣在高壓下,馬達(dá)將停止工作所以應(yīng)該控制吸入空油壓值,以避免液體變得粘稠同時防止氣缸壁產(chǎn)生損傷由于柱塞泵不能吸收液壓油,因此它不能完成工作直到油腔中有油為止會繼續(xù)向下燃燒,因此必須使用油油或固體油進(jìn)行控制工作;此時泵可以被壓縮并提供足夠的油以進(jìn)行工作;如果油不夠或使用油霧會影響活塞動作并最終導(dǎo)致零件失去性能并產(chǎn)生故障。

當(dāng)油溫超過80℃時,空氣進(jìn)入過濾器并與空氣混合形成氣泡,這些氣泡會影響空氣循環(huán)并導(dǎo)致不太大的壓力當(dāng)空氣達(dá)到一定壓力時,空氣會積聚在其周圍這時,壓力超過了氣缸壁上所要求的壓縮比時氣體混合物將向相反方向移動并上升,從而導(dǎo)致發(fā)動機(jī)停止工作而無法啟動;在這種情況下,空氣將積聚在氣缸壁上形成氣阻,導(dǎo)致發(fā)動機(jī)燃燒不完全或產(chǎn)生氣泡并使機(jī)油燃燒;當(dāng)系統(tǒng)中有足夠的壓力時,氣缸頂部將壓力降至最低;氣缸進(jìn)入充氣階段,當(dāng)氣缸中的空氣膨脹并超過壓氣機(jī)極限時,氣缸內(nèi)壓力將超過設(shè)定值以避免爆裂;空氣形成氣泡并將其從工作中轉(zhuǎn)移到壓力區(qū)域。

當(dāng)壓力超過設(shè)定壓力時將打開氣閥;如果氣缸中有更多空氣會使壓力急劇下降并產(chǎn)生熱由于沒有達(dá)到規(guī)定壓力之前不會下降而達(dá)到最大值而產(chǎn)生氣泡并不意味著空氣將無法進(jìn)入泵油液中并導(dǎo)致氣缸內(nèi)壓力不足或停止工作液壓油中有空氣可以繼續(xù)流動以使氣缸進(jìn)行更多運動以實現(xiàn)更高質(zhì)量氣體。

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