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针对纸滤芯式空气滤清器在东风4B型机车上运用中出现的增压器进口空气阻力较高、增压器自动抽尘波纹管进口不对中及在其他机车上采用纸滤芯式空气滤清器后如何进行废气引射排尘等问题，进行了分析和计算，提出了具体的改进措施和建议。
For the paper filter air filter used in the DF4 locomotive supercharger inlet air resistance is higher, the turbocharger automatic dust suction bellows import misalignment and in other locomotives using paper filter air filter How to carry out exhaust emission dust emission and other issues, carried out analysis and calculation, put forward specific improvements and recommendations.