| 摘要 |
<p>PURPOSE:To produce spiral flow stably in a conduit by coupling an auxiliary tube through an annular gap to the end of a main tube while curving a wall face smoothly to transit to the inner wall of the auxiliary tube then feeding pressurized fluid. CONSTITUTION:An auxiliary tube 2 is coupled through an annular gap to the larger diameter end of a main tube 1 where the wall face 31 of a gap 3 at the main tube 1 side is curved smoothly to transit to an inner wall 11 while the wall 32 at the auxiliary tube 2 side is folded to transit to an inner wall 21. Upon feeding of fluid through a pressurized fluid supply tube 7, stable spiral flow is produced in the conduit.</p> |
