Patent ID: 6990946

Claim:
A starter for a pilot oil ignition gas engine in which, in a main combustion chamber partitioned off by a cylinder, a piston that moves reciprocally inside the cylinder, and a cylinder head having a precombustion chamber with a liquid fuel injection valve, a fuel air mixture made up of a gaseous fuel and air that is introduced into the main combustion chamber and is compressed by the piston is ignited by pilot oil injected from the liquid fuel injection valve into the precombustion chamber and burned, thereby enabling the pilot oil ignition gas engine to provide drive output, wherein there is provided a controller that controls a position of a fuel control rod that controls a discharge quantity of a fuel injection pump that supplies the pilot oil to the liquid fuel injection valve based on an engine speed, and wherein, in a low speed region of the engine speed, the controller controls the fuel control rod in a position where a discharge quantity of the fuel injection pump is increased, while, in a high speed region of the engine speed, the controller controls the fuel control rod in a position where a discharge quantity of the fuel injection pump is decreased.