Cooled combustion apparatus

摘要

Combustion device for burning a mixture of gas and air comprises a burner (1) with two ends positioned in a combustion chamber (6), a mixing device for mixing the gas and air, a first feed channel for feeding the gas to the mixing device, a second feed channel for feeding the air to the mixing device, and a third feed channel (5) for feeding the mixture of gas and air from the mixing device to the burner. At least one of the feed channels runs from one end of the burner via at least one hollow chamber (8) in the burner to the other end of the burner and extends in at least one component positioned near the burner to cool at least one section of the component facing the combustion chamber. Preferred Features: The feed channel running through the hollow chamber in the burner is the third feed channel. The section facing the combustion chamber has a thin wall with good thermal conductivity. The component is a displacement body (4) positioned on one end of the burner.