P608305-P608306空氣濾芯廠家

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)動機(jī)的動力性、經(jīng)濟(jì)性及可靠性匹配。 
　?。?）額定進(jìn)氣量 
　　濾芯技術(shù)參數(shù)中的空氯流量應(yīng)大于配用發(fā)動機(jī)的額定進(jìn)氣量。 
　　（2）過濾材料 P608305-P608306空氣濾芯廠家
　　對過濾材料有厚度、抗張力、原始進(jìn)氣阻力、過濾精度等要求。進(jìn)口柴油朵要求空氣過濾精度為5μm，國產(chǎn)柴油機(jī)也要還應(yīng)小于20μm。高效濾紙的過濾精度為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 測定空氣流動壓力損失（流量-阻力或流量-壓力分硐曲線）。 
　?、谠歼^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(yīng)為99%以上。 
　?、蹆m能力試驗和累積效率試驗 濾芯積塵灰過多造成堵塞、進(jìn)氣阻力增大。使發(fā)動機(jī)功率下降5%或油耗上升5%時的進(jìn)氣阻力是一極限值，達(dá)到此值時就必須清掃或更換濾芯。試驗時，進(jìn)氣阻力或壓力降達(dá)到7—46kPa時的積灰重量即是濾芯的儲塵能力，而在此試驗期間的過濾效率則為累積效率。 
　　④原始進(jìn)氣阻力試驗 進(jìn)氣阻力9額定時氣量通過濾芯時在進(jìn)、出口處的壓差）不應(yīng)超過3.2kPa，還則功率將下降，發(fā)動機(jī)會冒黑煙。 

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