Experiments on the Rate of Blow-by in a Spark Ignition Engine

抄録

The phenomenon of blow-by in internal combustion engines has an important effect upon engine performance, the lubrication of cylinder wall, the oxidation of engine oil, and the bearing temperature, causing deterioration in the durability of the engine. The object of our experiments is to clarify the phenomenon of blow-by and its influence upon the piston and piston ring dimensions and the running condition of our automobile engine. The conditions of piston, piston rings and cylinder liner that give the best performance and the minimum rate of blow-by in our Automotive Gasoline Engine are shown in these papers.