ディーゼル機関の排気弁シートの吹抜けに関する研究 : 第1報, シート面の高温腐食挙動

概要

論文の詳細を見る
For the diesel engines, the improvement in the durability of exhaust valves against blow-by through valve seats is a vital problem due to the engine operation with heavy fuel oil entailing the deteriorated combustion and the corrosive environment. This study has been conducted aiming at clarifying the mechanism of blow-by in order to establish technologies to solve the problem. It has been clarified that the process of blow-by through the exhaust valve seats is such that the temperature rise in exhaust valves caused by the high temperature and high pressure combustion gas blowing at a high velocity through local gaps, due to bad seating of the valve seats, accelerates hot corrosion and enlarges bad seating parts.
一般社団法人日本機械学会の論文
1992-04-25