Patent ID: 9546632
Date: 2017-01-17
CPC Classifications: F01M,F01P,F02B,F02D,F02F,F02M,F05C

Claim:
1. A two-stroke engine, comprising: a piston slidably received in a cylinder bore defined in an engine main body; a scavenging port having an upper open end opening out in a side wall of the cylinder bore and a lower open end communicating with a crank chamber, the upper open end being configured to be closed and opened by the piston; and a fuel injection device mounted on the engine main body and configured to inject fuel onto a back side of the piston and/or a part of the side wall of the cylinder bore located under the piston, wherein the fuel injection device is mounted on a part of the engine main body defining a part of the scavenging port, and wherein the fuel injection device is configured to inject fuel during a period while a lower end of the piston is located higher than a lower edge of the upper open end of the scavenging port, and a part of the cylinder bore located under the piston communicates with the scavenging port.