P608305-P608306空氣濾芯廠(chǎng)家

P608305-P608306空氣濾芯廠(chǎng)家

唐納森空氣濾芯P608305-P608306的選用：

選用的空氣濾芯一定要與原裝發(fā)動(dòng)機的動(dòng)力性、經(jīng)濟性及可靠性匹配。 
　?。?）額定進(jìn)氣量 
　　濾芯技術(shù)參數中的空氯流量應大于配用發(fā)動(dòng)機的額定進(jìn)氣量。 
　?。?）過(guò)濾材料 P608305-P608306空氣濾芯廠(chǎng)家
　　對過(guò)濾材料有厚度、抗張力、原始進(jìn)氣阻力、過(guò)濾精度等要求。進(jìn)口柴油朵要求空氣過(guò)濾精度為5μm，國產(chǎn)柴油機也要還應小于20μm。高效濾紙的過(guò)濾精度為2μm，普通進(jìn)口濾紙為30μm，而國產(chǎn)濾紙僅為80μm。 
　?。?）濾芯性能試驗 
　?、倭髁?阻力（壓降）試驗 測定空氣流動(dòng)壓力損失（流量-阻力或流量-壓力分硐曲線(xiàn)）。 
　?、谠歼^(guò)濾效率試驗 可計算出濾芯的集塵效率，正常濾芯的降塵率應為99%以上。 
　?、蹆m能力試驗和累積效率試驗 濾芯積塵灰過(guò)多造成堵塞、進(jìn)氣阻力增大。使發(fā)動(dòng)機功率下降5%或油耗上升5%時(shí)的進(jìn)氣阻力是一極限值，達到此值時(shí)就必須清掃或更換濾芯。試驗時(shí)，進(jìn)氣阻力或壓力降達到7—46kPa時(shí)的積灰重量即是濾芯的儲塵能力，而在此試驗期間的過(guò)濾效率則為累積效率。 
　?、茉歼M(jìn)氣阻力試驗 進(jìn)氣阻力9額定時(shí)氣量通過(guò)濾芯時(shí)在進(jìn)、出口處的壓差）不應超過(guò)3.2kPa，還則功率將下降，發(fā)動(dòng)機會(huì )冒黑煙。 

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