| 摘要 |
<p>The nozzle according to the invention is characterized in that it comprises means (61, 62, 63) so that the dimensions of the fluid passage orifice vary as a function of the pressure differential between the inlet and the outlet. To this aim, the nozzle of the invention comprises a flat portion (30, 40, 50, 60) wherein are made at least two cuts (33, 45, 52, 62, 63) which form at least one tongue (31, 41, 51, 61) susceptible of elastically bending under the action of the fluid. Each cut is comprised of two grooves (61, 69) parallel to each other, one on each face of the flat portion, and of a slot (610) with a length equal to that of the grooves. Application: fabrication of nozzles and/or devices of which the flow rate is directly proportional to the pressure differential existing between the inlet and the outlet.</p> |
