| 摘要 |
A blowing nozzle having a substantially parabolic blowing end is provided which entrains ambient gasses into the output flow. A plurality of outlets are arranged so as reduce turbulence within the flow. The substantially parabolic blowing end converges at an apex coaxial with a blowing axis. A central outlet is provided at the apex to generate a core stream of gas. First outlets surround the central outlet. Second outlets surround the first outlets and are angled inward toward the blowing axis. Fins and/or additional outlets may be provided. |
