To strengthen the flame stability without lowering the working effect of the burner and suit the flame to the geometric shape specified for the combustion chamber by forming the front side of the burner at the terminating part of a mixing section in a manner of having a torus-shaped cut-out molding in the plane surface of a leaping transversal plane and on the side of the combustion chamber.
At the terminating part of a mixing pipe 20 on the side of a combustion chamber a torus (doughnut-shaped) part 71 is formed along the terminating edges which form a burner front 70 in the radial direction. In the torus part 71, a main current 40 inside the mixing pipe 20 comes in contact with a torus current 72 produced by the torus part 71 and a swirl coefficient is selected in such a manner as to increase as a result of the contact. Based on the contact and simultaneously, a main current 73 deflected obliquely with respect to a burner axis 60 is produced, which main current 73 advances in the tangential direction with respect to the torus current 72. The fluid dynamic characteristics, which are attributable to the torus part 71, expand a reverse-flow valve, that is, a reverse-flow zone 50 powerfully, compared with a flow without a torus 71, in stabilizing a flame.
| WO/2022/121104 | UPPER AIR INLET MODULAR STOVE BURNER |
KNOEPFEL HANS PETER
WALKER DONALD FRANK DR
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