| CPC B05B 3/045 (2013.01) [B05B 3/0436 (2013.01); B05B 15/74 (2018.02)] | 23 Claims |
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1. A rotating sprinkler for irrigation, the sprinkler comprising:
a housing having an inlet and an outlet;
a turret mounted on the housing at the outlet and configured to be rotated about an axis relative to the housing;
a drive mechanism configured to rotate the turret and having an input shaft;
a turbine coupled to the input shaft and comprising a power section and a bypass section, the power section having a plurality of blades configured to generate torque for rotating the input shaft, the bypass section being configured to allow water to pass through the turbine without significantly driving rotation of the turbine;
a stator spaced upstream from the turbine to form a mixing region therebetween, the stator comprising one or more diverters having a first opening disposed so as to change a direction of a primary flow path through the stator, the stator forming at least in part a second opening defining a bypass flow path through the stator, the primary flow path being aligned relative to the plurality of blades so that water exiting the first opening traverses the mixing region and impinges on the plurality of blades at a first angle of attack when flow through the second opening is a first amount, the bypass flow path being aligned relative to the primary flow path so that water exiting the second opening intersects the water exiting the first opening in the mixing region to cause the water exiting the first opening to impinge on the plurality of blades at a second angle of attack when the flow through the second opening is a second amount, the second angle of attack and the second amount being different than the first angle of attack and the first amount, respectively; and
a valve configured to regulate flow between the primary flow path and the bypass flow path,
wherein the first opening is upstream of at least a portion of the second opening when the valve is in an open position.
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