Patent ID: 7472848

Claim:
A fluidic oscillator that operates on a pressurized fluid flowing through said oscillator to generate an exhaust flow in the form of an oscillating spray of fluid droplets, said oscillator comprising: an inlet for said pressurized fluid, at least a pair of power nozzles, each of which having a floor and sidewalls that are configured to accelerate the movement of said pressurized fluid that flows through said nozzles so as to form a jet of fluid that flows from each said power nozzle, a pathway that connects and allows for the flow of said fluid between said inlet and said power nozzles, said pathway having a boundary surface that includes a pair of sidewalls, an interaction chamber attached to said nozzles and which receives said jet flows from said nozzles, said interaction chamber having a floor, an outlet from which said spray exhausts from said interaction chamber, and a step in the height elevation of the floor of said power nozzles with respect to that of said interaction chamber.