| 摘要 |
PCT No. PCT/GB91/02145 Sec. 371 Date Jun. 4, 1993 Sec. 102(e) Date Jun. 4, 1993 PCT Filed Dec. 4, 1991 PCT Pub. No. WO92/10301 PCT Pub. Date Jun. 25, 1992.A method for discharging a fluid, notably an aqueous medicament solution, as a spray of droplets by causing a fluid to flow through a nozzle aperture so that a secondary flow is induced in at least part of the flow of fluid through the nozzle aperture by a flap or orifice lip located within the bore of the nozzle passage, and/or adjacent an end of the nozzle passage, and/or adjacent the nozzle aperture. Preferably a secondary flow at the nozzle orifice is induced such that at least 10% of the fluid flows at an exit angle of 90 DEG to the overall line of travel of the remainder of the fluid.
|
