Integrated Burner and Cooling Passage Layout for Gas Mixing

The patent integrates the mixing tube, burner assembly, and exhaust passage into a single unified structure. The mixing tube serves dual purposes as both a combustion chamber and an exhaust passage, eliminating the need for separate components. This merging reduces device complexity while maintaining operational reliability through the integrated design that ensures proper gas flow and combustion.

The patent places the mixing tube inside the burner assembly structure, with the exhaust passage integrated within or around the mixing tube. This nested arrangement allows the mixing tube to be sufficiently long for effective gas mixing while the entire assembly remains compact. The exhaust passage is positioned to utilize the same spatial envelope as the mixing tube, achieving space efficiency without compromising mixing performance.

The patent introduces a barrier or partition structure between the intake passage and exhaust passage. This intermediary element prevents direct heat transfer from the hot exhaust gases to the cooler intake air, while still allowing the passages to be positioned in close proximity for space efficiency. The barrier acts as a thermal insulator, maintaining the temperature differential between intake and exhaust flows.

The patent enhances the mixing process by introducing radial or spiral flow components through the mixing tube design. Instead of relying solely on axial length for mixing, the geometry of the mixing tube creates rotational or turbulent flow patterns that increase the mixing efficiency within a shorter axial distance. This dimensional approach to fluid flow allows effective mixing in a compact configuration.