To provide a method and a device for sufficiently preventing occurrence of instability of interferential flow at a burner exit and for reducing oscillation caused by combustion in a combustion device, and particularly having small acoustic damping action.

This application relates to the method and the device for the controlled damping of combustion-driven oscillations in a turbomachine provided with the combustion device. The combustion device is provided with the burner, and a fuel is supplied to the burner from a burner nozzle disposed at its center. The fuel is intermixed with combustion air flowing into the burner to form a fuel/air mixture. The fuel/air mixture is ignited in a combustor connected to the combustion device. A fuel nozzle is formed into the form of a burner lance 3, and the fuel is supplied to the burner at the burner lance end. The burner lance is inserted into the burner in the amount of at least one third of the axial burner length.