Burner and pilot burner
View Patent ↗A burner for a heat generator comprises a swirl generator ( 1 ) for a combustion-air flow and means for injecting fuel for producing a main flow ( 6 ). A combustion chamber ( 2 ) is arranged downstream of the burner. A cavity ( 3 ) is arranged between the swirl generator ( 1 ) and the combustion chamber ( 2 ), in which cavity ( 3 ) a secondary flow ( 10 ) can be produced, and this secondary flow ( 10 ) encloses the main flow ( 6 ).
1. A burner for a heat generator, comprising:
a swirl generator for a combustion-air flow and means for injecting fuel for producing a main flow;
a combustion chamber arranged downstream of the swirl generator;
a cavity arranged between the swirl generator and the combustion chamber, in which cavity a secondary flow can be produced that encloses the main flow
wherein the secondary flow is configured and arranged to be used as a pilot flame.
2. The burner as claimed in claim 1 , wherein the cavity has an annular toroidal shape.
3. The burner as claimed in claim 1 , further comprising injection means for fuel and for combustion air arranged in the cavity.
4. The burner as claimed in claim 1 , further comprising a mixing section arranged between the swirl generator and the cavity.
5. The burner as claimed in claim 1 , further comprising a mixing section arranged between the cavity and the combustion chamber.