Patent ID: 8596232

Claim:
A two-stroke cycle engine of a stratified scavenging type, in which an air/fuel mixture and an air are introduced from a scavenging passage into a combustion chamber, which engine comprises: a valve body for adjusting a first opening of an air supply passage, through which the air is supplied to the scavenging passage, and a second opening of an air/fuel mixture supply passage, through which the air/fuel mixture is supplied to the scavenging passage; a check valve for preventing the air within the air supply passage from flowing in a reverse direction; and a delay member is an upright wall having a substantially square transverse sectional shape, and the upright wall is fixed in the air supply passage to project into one half of the passage height of the air supply passage on an upstream side of the check valve for delaying the timing at which the air reaches from the valve body to the air scavenging passage.