FUEL CONTROL DEVICE FOR GAS ENGINE

摘要

With the objective of preventing falling into an unstable combustion state such as a flame out during a recovery by suitably performing recovery control while recovering to an optimum operation by once again increasing the amount of gas fuel to a cylinder in which knocking is occurring after having halted or reduced the amount of gas fuel, the present invention is characterized by being provided with: a knocking determination means (49) that determines the occurrence of knocking; a knocking reduction means (55) that halts or reduces the supply of gas fuel to a cylinder in which knocking is occurring and reduces the supply of gas fuel to another cylinder in which knocking is not occurring; a first recovery means (57) that causes recovery from the state of gas fuel being halted or reduced in the cylinder in which knocking is occurring; and a second recovery means (59) that causes recovery from the state of gas fuel being reduced in the other cylinder that is not the cylinder in which knocking is occurring. The present invention is further characterized by the recovery time of the first recovery means (57) being shorter than the recovery time of the second recovery means (59), and the recovery of the cylinder in which knocking is occurring being prioritized.