METHOD TO INCREASE EFFICIENCY OF GAS EXCHANGE IN TWO-STROKE INTERNAL COMBUSTION ENGINE WITH CRANKCASE DISPLACEMENT SCAVENGING

摘要

FIELD: mechanical engineering; internal combustion engines. ^ SUBSTANCE: according to invention, engine includes at least two groups of cylinders. Each group contains one or several cylinders in which working processes are synchronous. Working processes in separate groups of cylinders process through equal angular spaces. In process of operation of engine, fuel-air mixture is sucked into crankcase by each group of cylinders separately, is partially compressed and bypassed into combustion chamber of other group of cylinders in which scavenging of cylinders occurs at this moment. ^ EFFECT: improved performance characteristics of two-stroke internal combustion engine with crankcase displacement scavenging owing to improvement of gas exchange process. ^ 1 dwg