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US 5,636,511 AGranted
Torch assembly
AssigneePrecision Combustion, Inc.
InventorsWilliam C. Pfefferle, E. Jack Sweet, Greg Jackson
Life of this patent
Estimating the term…
Abstract
The conventional gas turbine combustor is improved by mounting a pilot flame producing torch in a wall of the combustor to project a flame into the combustor as a means of ignition. The torch preferably is a catalytic igniter which will operate over a wide range of air/fuel ratios.
Claims11
A torch assembly for ignition of fuel in admixture with air within a gas combustor, which comprises;
- a tubular chamber;
- a hot surface igniter contained in the tubular chamber;
- means for atomizing fuel into admixture with air;
- conduit means for carrying the atomized fuel from the means for atomizing fuel into the tubular chamber;
- a partial reaction zone in the tubular chamber;
- means for addition of additional air into the partial reaction zone;
- electrical means for heating the igniter;
- and
- an exit opening out of the chamber for projection of a pilot flame into a combustor.
6 more elements
A torch assembly for the ignition of air/fuel mixtures in the walled combustion chamber of a gas turbine, which comprises;
- a tube defining a tube lumen, said lumen having a first end and a second end and a first opening into a combustion chamber;
- means for atomizing fuel in a mixture with air, mounted in the tube lumen, proximal to the second end;
- conduit means for delivery of a liquid fuel to the atomizer;
- passage means for carrying air to the atomizer;
- catalytic hot surface ignition means for igniting atomized fuel/air mixtures, positioned in the lumen between the atomizer and the first opening;
- secondary air addition means positioned to carry secondary air into the tube lumen between the igniter and the first opening.
3 more elements
Dependencies are inferred from the claim text.