FUEL SUPPLY DEVICE FOR INTERNAL COMBUSTION ENGINE

A fuel supply device for an internal combustion engine includes a tank that stores gas fuel, a fuel injection valve that supplies gas fuel to a cylinder, a fuel pipe that supplies gas fuel in the tank to the fuel injection valve, a pressure reducing valve provided downstream of the tank in the fuel pipe, a second shut-off valve as an electromagnetic valve that is provided downstream of the pressure reducing valve in the fuel pipe so as to open and close the fuel pipe, and a controller. A pressure reduced by the pressure reducing valve is defined as an outlet-side pressure. The pressure reducing valve includes a valve member that opens and closes in accordance with an increase and a decrease in the outlet-side pressure. The controller executes a valve closing process of closing the second shut-off valve when a stop condition for stopping fuel injection of the fuel injection valve is met.