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目前国内外几种型式空气滤清器的粗滤器中,多管旋风式粗滤器的滤清效率是较高的,经它过滤后的空气含尘量只相当于油浴式空滤器的40~50%。4115发动机使用的正是这种多管旋风式空滤器,为什么大家却反映它的滤清效率不高,甚至不如油浴式呢?经过调查、试验,我们认为有以下几个原因: 1.废气排尘装置的排气喉管尺寸不合理,排尘管吸力不足,灰尘不能通畅地排除,严重时甚至废气倒流入空滤器,致使滤清效率接近于零。灰尘滞留在空滤器中,滤网及旋风管迅速堵塞。冬季还会因废气倒
At present, several types of air filters at home and abroad, the primary filter, multi-tube cyclone coarse filter efficiency is higher, after it filtered air dust content is only equivalent to the oil bath air filter 40 ~ 50%. 4115 engine is the use of this multi-tube cyclone-type air filter, why we have to reflect its filtration efficiency is not high, or even as oil bath? After investigation, test, we think the following reasons: 1. Exhaust Exhaust dust exhaust pipe throat size is unreasonable, dust suction pipe suction, dust can not be excluded, in serious cases, even exhaust gas back into the air filter, resulting in the filtration efficiency close to zero. Dust remaining in the air filter, filter and cyclone tube quickly blocked. Winter will be due to exhaust gas down