FIELD: heating.
SUBSTANCE: burner is implemented with a fuel distribution ring, certain quantity of fuel nozzles mounted along the flow on the fuel distribution ring having a ring-shaped surface along the flow direction. The fuel distribution ring has the external inner part facing towards the ring middle and the opposite outer external side. On the surface between fuel nozzles there is, at least, one groove. At least, one groove passes along the surface from outer side up towards inside. On the surface, at least, one chamfer is located. At least, one chamfer partially encloses also outer side of the fuel distribution ring.
EFFECT: invention is aimed at increase of service life.
12 cl, 5 dwg
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