MAN40/45中速柴油机排气门杆损伤分析

Analyzing on Damage of Discharge Stem of MAN40/45 Mid-Speed Diesel Engine

分析了ＭＡＮ４０/４５中速柴油机排气门杆常发生损伤的原因,认为是排气门及导套的结构与排气门的材质问题造成的。

By analyzing the normal causes of discharge stem damage of MAN40/45 mid - speed diesel engine , the author holds that these damages are mainly caused by the impropriety of the structure of the discharge gate and guiding sleeve and the defects of the quality of the materials, which the discharge gate made of.