Patent ID: 11933492
Assignee: nan
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 12:
13. A burner comprising:
a body containing at least one injector;
a crown disposed on said body, and
a cap disposed on said crown, wherein said crown comprises:
a truncated conical lateral edge with decreasing diameter extending upwardly and an inclination of between 20° to 70° relative to a horizontal plane; and
a cylindrical seat that has an open top, wherein said cap is disposed so as to define a distribution chamber for an air-gas mixture between said crown and said cap, the cylindrical seat having a cylindrical lateral wall, wherein said cap has a lateral edge that comprises:
a first truncated conical portion with downward inclination of 20° to 70° relative to the horizontal plane;
a second cylindrical portion;
a lower horizontal surface with a step; and
a plurality of apertures adapted to allow emission of flames from said first truncated conical portion of said cap, said plurality of apertures being through holes with an emission axis that is inclined upwards by approximately 20° to 70° relative to the horizontal plane, wherein the first cylindrical portion of said cap is disposed in a distal position relative to a position of the cylindrical lateral wall of said seat of said crown so as to define an annular gap adapted to emit a pilot flame, said crown comprising an annular collar that protrudes upwards and supports the step of the cap, the annular collar having an upper edge with a plurality of cavities, wherein said cap is die-cast and the apertures of said cap have an axial length of approximately 5 to 6 millimeters, the plurality of cavities of the annular collar of said crown each having a radial horizontal axis and arranged radially outwards with respect to an inlet of said plurality of apertures so as to be adapted to feed an air-gas mixture into the annular gap.