ROTOR-TYPE SPRINKLER WITH PRESSURE REGULATOR IN OUTER CASE

摘要

An irrigation sprinkler can include an outer case and a riser extendible from the outer case by water pressure. A nozzle can be rotatably mounted at an upper end of the riser. A water inlet can connect the sprinkler to a water source. A turbine may be mounted in the riser for rotation by water entering a lower end of the riser. A gear train reduction can be mounted in the riser. A gear driven coupling mechanism mounted in the riser may couple the gear train reduction and the nozzle. A pressure regulator can be mounted inside the outer case at the water inlet.

主权项

1. An irrigation sprinkler comprising:
an outer case having a case volume and having a first opening on a first end and a second opening on a second end; a riser positioned at least partially within the case volume and configured to extend through the second case opening having:
a riser inlet end having a riser inlet;a riser outlet end;an outlet housing connected to the riser outlet end; anda riser outlet in the outlet housing; and a pressure regulator having an inlet that can be coupled to a water supply; the pressure regulator mounted to the first open end and positioned at least partially within the outer case and configured to regulate fluid pressure within the irrigation sprinkler as water enters the outer case to maintain a substantially constant pressure inside the outer case and the riser inlet.