Patent ID: 8056829
Filing Date: 2011-11-15
Classification: B05B,F16K,G05D,Y10T

Abstract:
1. An apparatus to regulate the flow of water through an irrigation sprinkler comprising: an irrigation sprinkler body defining an inlet opening, an outlet flow opening and a passageway therebetween, the irrigation sprinkler body including a turbine downstream of the outlet flow opening, the outlet flow opening configured to guide fluid flow with a component generally transverse to a longitudinal axis of the irrigation sprinkler body to impact the turbine; a regulator valve located in the passageway configured to regulate the flow of water between the inlet opening and the outlet flow opening and including a valve seat and a pressure responsive moveable member operable to reduce the size of the passageway by shifting towards the valve seat to restrict flow when water pressure downstream of the regulator valve increases to exceed a first predetermined threshold; a bypass valve located in the passageway and including a reciprocating member and a bypass valve opening, the reciprocating member mounted in the irrigation sprinkler body for movement independent of the pressure responsive moveable member of the regulator valve, the bypass valve being located at least in part downstream of the regulator valve to allow at least a portion of the flow to bypass the outlet flow opening through the bypass valve opening when pressure at the outlet flow opening increases to exceed a second predetermined threshold to shift the reciprocating member away from the bypass valve opening, the second predetermined threshold being different than the first predetermined threshold; and the by-pass valve opening configured to direct at least a portion of the by-pass flow in a direction generally along the longitudinal axis to impact the turbine when the reciprocating member is shifted away from the by-pass valve opening.