Abstract: Gas burner for a cooker, with a burner head provided with a frustoconical peripheral side wall and with a multiplicity of slots forming flame orifices, the burner head being topped by a cap, the side wall (2′) being inclined (&agr;) to the vertical by 10° to 20° and the bottom (8′) of each slot (3) being inclined (&bgr;) to the horizontal by 20° to 30°; the ratio of the diameter (A) of the cap to the diameter (B) of the side wall (2) at mid-height of the outlet orifices (11) of the slots (3) is from 1.4 to 1.6; the stand-off (H) of the cap above the top of the burner head is from 1 to 15 mm; and the angle of inclination (&ggr;) of the lower face (9) of the cap to the horizontal is from 3° to 15°.

Abstract: Gas burner for a cooker, with a burner head provided with a frustoconical peripheral side wall and with a multiplicity of slots forming flame orifices, the burner head being topped by a cap, the side wall (2′) being inclined (&agr;) to the vertical by 10° to 20° and the bottom (8′) of each slot (3) being inclined (&bgr;) to the horizontal by 20° to 30°; the ratio of the diameter (A) of the cap to the diameter (B) of the side wall (2) at mid-height of the outlet orifices (11) of the slots (3) is from 1.4 to 1.6; the stand-off (H) of the cap above the top of the burner head is from 1 to 15 mm; and the angle of inclination (&ggr;) of the lower face (9) of the cap to the horizontal is from 3° to 15°.