| 摘要 |
<p>A drip emitter (10), and methods of assembly and mounting, are provided for delivering irrigation water from a supply tube (100) to an emitter outlet (22) at a reduced and relatively constant flow rate. Water enters the emitter through a first inlet (16) and proceeds into a first chamber. When the water pressure is above a predetermined level, a one-directional valve (40) opens to allow fluid flow past the first chamber, through a pressure-reducing flow channel (38), and through an emitter outlet (22). A second inlet (18) is used to compensate for water pressure differences in the supply tube to maintain output flow at a relatively constant rate. Water enters the second inlet and presses a flexible diaphragm (36) toward a water metering surface (42) to provide pressure-dependent control of the output flow. Copper (64) is located near the emitter outlet to prevent plant root intrusion.</p> |
