Hybrid burner lance

Details Hybrid burner lance Hybrid burner lance

2011-06-21

2011-06-21

Rinehart, Kenneth B (Department: 3748)

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

C431S159000, C431S187000, C060S742000, C239S423000, C239S424000

Reexamination Certificate

active

07963764

ABSTRACT:
A lance for a hybrid burner of a combustor of a gas turbine, includes an inner passage for a liquid fuel, an outer passage coaxially enclosing the inner passage for a gaseous fuel, a plurality of star like arranged outer nozzles branching off radially from the outer passage, a plurality of inner nozzles, which branch off radially from the inner passage and which each extend coaxially inside one of the outer nozzles, and a distributor section, which is arranged upstream of the outer nozzles in the outer passage and has a plurality of star like arranged, coaxially extending through-openings for the gaseous fuel. In order to reduce the flow resistance in the gas path of the lance, the through-openings each have an opening width which is larger in the circumferential direction than in the radial direction.

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