On the Scavenging of Two-Stroke Diesel Engine : Scavenging Process in Cross-Scavenging System

This paper reports the results of an investigation on the scavenging process in a model cylinder having a cross-scavenging system. The movement of the scavenge front in the cylinder and the short-circuiting of fresh charge were investigated by an electronic method. The profile of the scavenge front was made clear. The port arrangement investigated here gives a flat scavenge and an early short-circuiting occurs at the exhaust ports located near the scavenging ports. A poorly scavenging region exists above the exhaust ports.