LIQUID FUEL SUPPLY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a liquid fuel supply system capable of stably supplying a small quantity of liquid fuel.SOLUTION: A liquid fuel supply system comprises: an injection valve injecting liquid fuel into a combustion chamber; and a controller that can regulate an injection pressure of the liquid fuel injected from the injection valve into the combustion chamber. The injection pressure includes a liquid-fuel starting injection pressure when injection of the liquid fuel starts from the injection valve. The controller regulates the injection pressure so that the starting injection pressure in a gas mode in which both the liquid fuel and gas fuel are supplied into the combustion chamber is higher than the starting injection pressure in a diesel mode in which the liquid fuel is supplied into the combustion chamber and the gas fuel is not.