| 摘要 |
PROBLEM TO BE SOLVED: To obtain a stable combustion characteristic of an engine by properly supplying a fuel gas even when pressure in a cylinder changes.SOLUTION: A two-stroke uniflow engine 100 includes a cylinder 110, a piston 112, an exhaust valve 120 that is opened and closed to expel an exhaust gas generated in the cylinder, a scavenging port 122 through which an active gas is sucked into the cylinder in accordance with the sliding action of the piston, a fuel injection port 126 disposed on the inner periphery of the cylinder, a fuel injection valve 128 to inject a fuel gas at the fuel injection port, and a fuel injection control unit 152 that executes injection control of the fuel gas in the fuel injection valve. The fuel injection control unit determines at least one of injection pressure and injection duration of the fuel injection valve on the basis of pressure change in the cylinder produced through the reciprocating motion of the piston. |
