| 摘要 |
A stratified scavenging two-cycle engine, which is more compact in construction. The stratified scavenging two-cycle engine comprises a scavenging flow passage (3) for connection between a cylinder chamber (4a) and a crank chamber (1a), and an air flow passage (2) connected to the scavenging flow passage (3). The scavenging flow passage (3) is continuously formed by a communication portion (30) extending from the crank chamber (1a) toward a cylinder chamber (4a), and a scavenging direction adjustment portion (31) extending from a communication portion (30) toward a cylinder inner surface (4b) and opened at a scavenging port (3a) to the cylinder inner surface (4b). The air flow passage (2) extends to an area surrounded by the communication portion (30), scavenging direction adjustment portion (31) and the cylinder inner surface (4b). <IMAGE> |
