Patent ID: 6863226
Filing Date: 2005-03-08
Classification: B05B

Abstract:
1. A rotary sprinkler, comprising: a body with an inlet bore, an outlet bore, and an internal cavity therebetween, all arranged along a common axis, the inlet bore having an upstream end connectable to a water supply pipe and a downstream end formed as a jet nozzle for ejecting a free water jet into said cavity, the outlet bore having an upstream end with a rim; a rotor having an axially extending shaft with a shaft channel directed along the axis and having an inlet, and at least one vane with a vane channel extending away from the shaft and having an outlet constituting an outlet of the sprinkler, the shaft channel and the vane channel defining a smooth water flow passage between said inlet and said outlet, said passage having an open cross-section, said shaft being inserted in the outlet bore of the body to enable free rotation of the rotor, the inlet of said share channel facing and being aligned with said nozzle so as to accept smoothly said fee water jet, wherein said sprinkler further comprises a retaining ring that is assembled to the upstream end of said shaft, is disposed in said internal cavity, and is adapted to abut the rim of the outlet bore, thereby carrying axial forces applied to said rotor.