公开(公告)号：US20120260900A1

公开(公告)日：2012-10-18

申请号：US13453470

申请日：2012-04-23

Applicant: Shigetoshi ISHIDA

Inventor： Shigetoshi ISHIDA

IPC: F02B25/00

CPC classification number: F02B25/16 ,  F02B25/22 ,  F02B2075/025 ,  F02F1/22 ,  F02F3/24

Abstract: A laminar-scavenging two-cycle engine which has a high laminar-scavenging effect, includes a scavenging passage having a crankcase side portion extending along a crankcase, and a cylinder side portion extending along a cylinder and having a length larger than the sum of the diameter and stroke of the cylinder. An ambient air introducing passage for introducing leading air into the scavenging passage is connected to an intermediate portion of the scavenging passage. A notch for opening a scavenging port to the side of the crankcase when a piston is near the top dead center is formed in the piston.

Abstract translation: 具有高层流扫除效果的层状清扫双循环发动机包括具有沿着曲轴箱延伸的曲轴箱侧部分的扫气通道和沿气缸延伸的长度大于气缸长度的总和的气缸侧部分 气缸的直径和行程。 用于将引导空气引入扫气通道的环境空气引入通道连接到扫气通道的中间部分。 当活塞靠近上止点时，用于将清扫口打开到曲轴箱侧的切口形成在活塞中。