Patent ID: 8801429

Claim:
A burner arrangement comprising: a conical swirler in the form of a double cone which is arranged concentric to a burner axis and which encloses a swirl chamber; and a central fuel lance which lies in the burner axis and projects from a cone point of the swirler into the swirl chamber, wherein a first stage is provided for injecting fuel, in which the fuel is injected radially outwards into the swirl chamber through injection openings which are arranged on the fuel lance, wherein a second stage is provided for injecting fuel, in which the fuel is injected into an air flow guided in the double cone, through injection openings in the double cone, and wherein in the first stage the entire fuel is injected into the swirl chamber through only two oppositely-disposed injection openings arranged substantially 180° apart from each other and wherein in a first stage the fuel is injected radially outward from a cylindrical section of the lance.