Two cycle low emission chain saw cylinder body

The utility model discloses a two cycle gasoline engine oil saws the cylinder body, relates to internal -combustion engine cylinder technical field. It includes the cylinder body base member, air inlet, gas vent, and the symmetry sets up two scavenging air belts on the cylinder body base member, sets up next door direction muscle on the scavenging air belt, and first scavenging air belt and second scavenging air belt are cut apart into with the scavenging air belt to next door direction muscle, and the scavenging air belt symmetrical with original twice increases four scavenge trunks, wherein first scavenging air belt phase place H3 design be 27.4 0.25, the design of second scavenging air belt phase place H2 be 26.7 0.25, air inlet phase place H1 design be 12.5 0.25, gas vent phase place H4 designs and is 34.7 0.25. The utility model provides high mist gets into the velocity of flow of cylinder body scavenging air belt, improves the atomization effect of gas mixture, reduces the escape loss that the gas mixtu