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空气滤清器是在空气进入气缸之前,清除其中杂质的一种装置。中小功率发动机空气滤清器滤芯的材料一般为钢丝、纸质及泡沫塑料。滤芯使发动机在吸气过程中产生一定的进气阻力,进气阻力的大小直接影响到发动机的进气量,进而影响发动机的功率。因此,在保证滤清效果的前题下,无论哪一种空气滤清器,其进气阻力都不能过高。以195型柴油机为例,无论采用哪一种结构形式以及选用哪一种滤芯材料,其空气滤清器总成的原始进气阻力值都不得超过1.96千帕(200毫米水柱),因而对其功率和油耗的影响很小。但在使用中,随着滤芯表面吸附的尘土增多,其进气阻
An air filter is a device that removes impurities before it enters the cylinder. Small and medium-power engine air filter material is generally steel wire, paper and foam. The filter makes the engine in the intake process to produce a certain intake resistance, the size of the intake resistance directly affects the intake of the engine, thus affecting the power of the engine. Therefore, to ensure that the effect of filtration, no matter what kind of air filter, the intake resistance can not be too high. Taking the Model 195 diesel engine as an example, the air intake air filter assembly must not exceed 1.96 kPa (200 mm water column) regardless of the type of construction and which filter material to use. Therefore, The effect of power and fuel consumption is small. However, in use, as the filter surface adsorption of dust increases, the intake resistance