Gas device

The patent divides the combustion chamber into an inner chamber and an outer chamber, with the burner located in the inner chamber. This segmentation allows the outer chamber to serve as a protective shell that shields the sheet metal components from direct exposure to high temperatures, thereby extending their service life while maintaining high burning intensity in the inner chamber for improved heating efficiency.

The patent introduces air as an intermediary cooling medium that flows through the space between the inner and outer combustion chambers. This air flow acts as a heat barrier, absorbing excess heat from the inner chamber and protecting the outer chamber and associated sheet metal components from high temperature damage, thus extending their service life while allowing high-intensity burning in the inner chamber.

The outer combustion chamber serves multiple functions: it acts as a protective shell for the inner chamber, provides a pathway for cooling air flow, and serves as a structural support for the burner assembly. This multi-functionality reduces the need for separate cooling channels and components, thereby extending component service life without significantly increasing device complexity.

The patent utilizes the natural convection of air as a self-service cooling mechanism. Air enters the space between the inner and outer chambers and is automatically heated by the inner chamber, creating a natural upward flow that carries heat away from sensitive components. This passive cooling approach extends component service life without requiring active cooling systems or complex channel structures.