| 摘要 |
<p>The present invention concerns a device (10) for the fluid flow (100) control in a drip irrigation hose (20). In particular the control device (10) is made to be placed in correspondence of an opening (25) of the hose and comprises a first surface (1) that, in use, is facing toward the opening and a second surface (1'), opposed to the first surface, that faces toward the flow. The first and second surface result to be in communication through at least a passing hole (3), through which, the fluid that flows inside the hose, is sent into a path, or labyrinth (2), realized on the first surface (1) to cause a pressure fall of the fluid. According to the invention, the second surface (1') present a second path (2'), or labyrinth, in communication to said, or ' each passing hole (3) to cause a pressure fall of the fluid when the second surface (1') faces towards the opening (25) and the first surface faces towards the flow (100).</p> |
