Patent ID: 6332581
Filing Date: 2001-12-25
Classification: B05B,Y10S

Abstract:
A nozzle for a rotary sprinkler of the type having a nozzle base that is rotated by a drive, which comprises:(a) a nozzle body configured to be carried by the nozzle base for rotation therewith; and(b) at least a first water flow passage provided in the nozzle body, the first flow passage having a longitudinal axis and comprising:(i) an inlet;(ii) an outlet;(iii) a diffuser connecting the inlet and the outlet, the diffuser having a cross-sectional area that is larger than the cross-sectional area of the inlet; and(iv) an impact surface which is inclined relative to the longitudinal axis of the first flow passage, the impact surface being positioned to intercept a portion of the water flowing in a boundary layer of the diffuser while the water flowing in a non-boundary layer portion is not intercepted by the impact surface.