ELASTOMERIC EMITTER AND METHODS RELATING TO SAME

摘要

An irrigation drip emitter, and methods relating to same, are provided for delivering irrigation water from a supply tube to an emitter outlet at a reduced and relatively constant flow rate. The emitter defining an inlet, outlet and flow passage extending between the inlet and outlet. In one form, the emitter includes a root growth inhibiting member disposed in the outlet of the emitter. In another form, the emitter includes stepped flippers for controlling fluid flow through the emitter. In yet another form, the emitter includes disconnected or freestanding outlet walls disposed in the outlet for preventing the outlet from collapsing under increased fluid line pressure without creating dead ends where grit can build-up. In other forms, the emitter defines one or more recess within which inserts may be disposed so the emitter and insert collectively define a fluid flow passage. Related methods are also disclosed herein.

主权项

1. An irrigation drip emitter for insertion in to a conduit carrying pressurized fluid comprising:
a unitary body defining an inlet, outlet and a flow channel therebetween connecting the inlet and outlet; the flow channel defining a pressure reduction flow passage and a pressure compensating flow passage having a first cross-sectional area at low fluid pressure and a second cross-sectional area smaller than the first cross-sectional area at high fluid pressure to restrict flow through the channel; and a root growth inhibiting member positioned in or proximate the outlet to deter roots from obstructing the flow of fluid through the emitter.