Patent ID: 7972133

Claim:
A burner for operating a heat generator, the burner comprising: a swirler for a combustion air flow; means for injecting at least one fuel into the combustion air flow; a mixing path downstream of the swirler and having a discharge opening, opening to a combustion chamber; at least one nozzle, configured and arranged to feed liquid pilot fuel to the combustion chamber, arranged in a region radially outside the mixing path discharge opening; a burner front plate having a front face, wherein the at least one nozzle is arranged in the burner front plate; at least one discharge opening through which the liquid pilot fuel can discharge into the combustion chamber, the at least one discharge opening positioned in the burner front plate front face, the burner front plate front face arranged to be parallel to a combustion chamber rear wall; means upstream of the nozzle for adjusting the throughflow cross section for combustion air in the burner front plate cavity; wherein the burner front plate comprises a cavity; wherein the at least one nozzle is arranged in the burner front plate cavity; wherein the discharge opening forms an opening of the cavity to the combustion chamber through which a spray cone when produced by the at least one nozzle enters the combustion chamber; and wherein the at least one nozzle has an opening set back from the discharge opening relative to the combustion chamber; and wherein the burner front plate cavity has at least one inlet opening through which combustion air from outside can enter the cavity and, as a result of the pressure drop towards the combustion chamber, can flow through the discharge opening.