Highly compact internal flame gas burner

Abstract From the Canadian patent

Internal flame gas burner comprising a gas injector a vacuum tube, or venturi tube, ensuring an induction of primary air a pot, and a cap, the cap covering the pot and together with the pot defining an annular distribution chamber for a fuel mixture of air and gas the vacuum tube having an inlet open to the ambient air first and second longitudinal sections having respectively, convergent and divergent profiles and an outlet opening into the annular chamber and the vacuum tube extends longitudinally along an axis inscribed in a mid-plane of the annular chamber has a length at most equal to twice the greatest distance separating the internal edge of the chamber from the centre of this …