| 摘要 |
PROBLEM TO BE SOLVED: To provide a highly effective swirler with a low pressure drop.SOLUTION: An axial swirler includes a plurality of swirl vanes 3 with a streamline cross-section being arranged around a swirler axis and extending in the radial direction between an inner radius (R) and an outer radius (R). Each swirl vane 3 has a leading edge 25, a trailing edge 24, and a suction side 22 and a pressure side 23 each extending between the leading edge 25 and the trailing edge 24. A discharge flow angle (α) between a tangent 26 to a swirl vane camber line 27 at its trailing edge 24 and the swirler axis is a first function of radial distance (R) from the swirler axis. A position of maximum camber of the swirl vane is a second function of radial distance (R) from the swirler axis. For at least one swirl vane, the first and second functions each have individual local maximum and local minimum values along the radial distance from Rto R.SELECTED DRAWING: Figure 10 |
