Patent ID: 7942143

Claim:
A heating cooking appliance comprising: a case; a plate covering a top of the case; a burner system within an interior defined by the plate and the case; and an exhaust unit disposed at a side edge of the case, wherein the burner system includes: a burner pot having a vertical flat side and providing a single uniform mixing space for gas and air, a mixing tube unit extending from the vertical flat side of the burner pot, the mixing tube unit installed to supply a gas mixture into the single mixing space without leakage of the gas mixture; and a nozzle unit having a plurality of nozzles maintaining a predetermined distance from the mixing tube unit, wherein the mixing tube unit is provided with a plurality of mixing tubes, the plurality of mixing tubes communicate with the single mixing space, gas discharged from each nozzle and air are suctioned together into an inlet at one end of each mixing tube, and an outlet at the other end of each mixing tube communicates with one of a plurality of openings in the burner pot, the openings communicate with the single mixing space of the burner pot, and a mixture of the air suctioned together with the gas is discharged into the burner pot through the openings, the plurality of mixing tubes extending in the same direction from the vertical flat side of the burner pot, wherein the plurality of mixing tubes includes a first mixing tube and a second mixing tube, the first and second mixing tubes extending in a tangential direction of the burner pot, wherein the gas mixture discharged from the first mixing tube is whirled in a clockwise direction in the single uniform mixing space to form a first directional flow, wherein the gas mixture discharged from the second mixing tube is whirled in a counter-clockwise direction in the single uniform mixing space to form a second directional flow, and wherein the first and second directional flows are mixed in the single uniform mixing space.