in a method for injecting fuel into a burner , which burner comprises an inner chamber enclosed by at least one shell , at which inner chamber fuel is injected through fuel nozzles into a combustion air stream flowing inside the inner chamber , the resulting fuel / air mixture flows within a time - lag to a flame front in a combustion chamber , and is ignited there , the formation of thermoacoustic , ignition - driven vibrations is achieved in that the fuel is injected in such a way by means of fuel nozzles distributed over the burner length that the time - lag between the injection of the fuel and its combustion at the flame front corresponds to a distribution that varies systematically over the burner length for the various fuel nozzles and reduces the vibrations .