沙漠推土机可在沙漠腹地的石油勘探、开采中承担清理线路、挖掘土方、整修场地等工作,为了保证沙漠推土机在恶劣环境下作业,其发动机设置进气阻力小、过滤效率高的进气系统至关重要。1.普通工况进气系统我国西北沙漠地区干旱、少雨、风沙大,空气中沙尘含量相当于普通工况的数十倍甚至数百倍。发动机采用普通空气滤清器,容易造成过滤阻力过大并发生堵塞。大量沙尘堵塞后如不及时清理,可导致滤芯吸瘪、变形,滤芯与壳体结合面的密封圈失效。使大量高密度的沙尘经过滤芯 Desert bulldozers in the hinterland of the oil exploration and exploitation of the line to undertake clearing, excavation of earthwork, renovations venues, etc., in order to ensure desert bulldozers work in harsh environments, the engine set intake resistance, high filtration efficiency of the intake system to Important. 1. Common Condition Intake System Drought in northwest China’s deserts is characterized by less rainfall and sandstorms. The dust content in the air is equivalent to tens or even hundreds of times of the normal working conditions. The engine uses an ordinary air filter, easily lead to excessive filtration resistance and blockage. If a large amount of dust clogging is not cleaned in time, it may cause the filter element to deflate and deform, and the seal ring on the joint surface of the filter element and the housing will fail. A large number of high-density dust through the filter