1扫气不良对油锯发动机的危害油锯是二冲程汽油发动机，由于它的结构限制，扫气效果并不理想，虽然在设计方面已有很大改进，但还是避免不了废气的部分残留，使扫气和压缩过程中气缸内的混合气涡流减弱，废气残留量过多，并使过气温度升高和工作混合气质量变坏等。这些都会给爆 1 scavenging adverse effects on chainsaw engine Chain saw is a two-stroke gasoline engine, due to its structural limitations, scavenging effect is not satisfactory, although the design has been greatly improved, but still can not avoid some of the residual exhaust, So that scavenging and compression process in the cylinder mixture vortex weakened, excessive exhaust gas, and the over-temperature temperature and the quality of the working mixture deteriorates. These will give burst