Engine device
An engine device including an intake manifold configured to supply air into a cylinder; an exhaust manifold configured to output exhaust gas from the cylinder; a gas injector which mixes a gaseous fuel with the air supplied from the intake manifold; and a main fuel injection valve configured to inject a liquid fuel into the cylinder for combustion. At the time of switching from a gas mode in which the gaseous fuel is supplied into the cylinder to a diesel mode in which the liquid fuel is supplied into the cylinder, a supply-start timing of the liquid fuel is delayed relative to a supply-stop timing of the gaseous fuel.
1. An engine on a ship, the engine configured to:
based on the ship being within a reduced emissions area, prohibit an engine switching operation to switch operation of the engine from a gas mode to a diesel mode.
2. The engine of claim 1 , wherein:
the engine is further configured to operate in each of a plurality of modes;
the plurality of modes include:
the gas mode in which a gaseous fuel is supplied to a cylinder of the engine; and
the diesel mode in which a liquid fuel is supplied into the cylinder.
3. The engine of claim 2 , further comprising:
an intake manifold configured to supply air to the cylinder of the engine;
an exhaust manifold configured to output exhaust gas from the cylinder;
a gas injector configured to mix the gaseous fuel with the air supplied form the intake manifold; and
a main fuel injection valve configured to inject the liquid fuel into the cylinder for combustion.