Patent ID: 8579214

Claim:
A swirler, comprising: a plurality of vanes, each vane comprising: a thin end; a broad end; and a plurality of swirl slot side profiles cut on a side of a flow slot wherein the flow slot is defined between a side wall of adjacent vanes such that each flow slot includes an inlet and an outlet whereby air enters the flow slot at the inlet and travels toward the outlet, wherein the broad end of each vane includes sharp edges and is arranged on an outside of the swirler, wherein the thin end of each vane is arranged on an inside of the swirler, wherein each swirl slot side profile provides a turbulence to an air flow, and wherein a surface of each swirl slot side profile includes a contour which provides the turbulence, wherein each swirl slot side profile includes a cross section of a tubular profile, and wherein each swirl slot side profile includes a fuel injection point through which fuel is injected.