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US 6,615,587 B1Granted
Combustion device and method for burning a fuel
AssigneeSiemens Aktiengesellschaft
InventorGünther Schulze
Life of this patent
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Abstract
A combustion device for the combustion of fuel, includes a supply duct for supplying a fuel to a combustion zone. The fuel is capable of being guided through the supply duct in a fluid stream with a direction of flow and at a nominal velocity lying within a nominal operating interval. Further, the supply duct is narrowed in an uncoupling region, such that at the nominal velocity, sound waves running opposite to the direction of flow in the fluid stream from the combustion zone are at least partially reflected in the uncoupling region.
Claims18
A combustion device for combustion of a gaseous fuel comprising:
- a combustion zone;
- and
- a supply duct for supplying the gaseous fuel to the combustion zone, the gaseous fuel being capable of being guided through the supply duct in a fluid stream with a direction of flow and at a nominal velocity lying within a nominal operating interval, wherein the supply duct is relatively narrowed in a decoupling region such that, at the nominal velocity, sound waves running opposite to the direction of flow in the fluid stream from the combustion zone are at least partially reflected in the decoupling region, wherein the decoupling region is followed in the direction of flow by a pressure increase region in which the supply duct relatively widens and wherein the decoupling region of the supply duct is arranged in an air duct for supplying air to the combustion zone.
Dependencies are inferred from the claim text.