| 摘要 |
<p>A drip and trickle irrigator independent of the pressure of the water supply. The drip irrigator has an inlet with a variable-orifice to control the fluid flow into a chamber. A float within the chamber coupled to the variable orifice in order to vary the cross-sectional area of the orifice upon variation of the head of fluid within the chamber. An outlet inside the chamber such that the pressure of the fluid head determines the pressure at the outlet independent of the supply pressure.</p> |
