| 摘要 |
PROBLEM TO BE SOLVED: To provide a stratified scavenging two-cycle engine having simple structure and excellent effects in regard to preventing a blow-by and so on, compared to a conventional stratified scavenging two-cycle engine. SOLUTION: The stratified scavenging two-cycle engine is configured such that: in an intake process, a piston 6 passes a top dead center from the moment when a side groove 21b starts to overlap a guide air port 12, and the guided air flows into an interior space of the piston 6 through the guide air port 12 and so on, while the overlap of the side groove 21b and the guide air port 12 is released; and in a scavenging process, a piston 6 passes a bottom dead center from the moment when a scavenging connection port 20 starts to overlap a scavenging input port 19, and the guided air flows into an inside of a cylinder 4 from a scavenging port 18 through a scavenging path 17 and so on, and then a mixture gas flows into the inside of the cylinder 4 from the scavenging port 18 through the inside of the piston 6 and so on, while the overlap of the scavenging connection port 20 and the scavenging input port 19 is released. COPYRIGHT: (C)2008,JPO&INPIT
|
