Patent ID: 7267290

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 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, an outlet from which said spray exhausts from said interaction chamber, and a means for increasing the instability of said flow from said power nozzles, said means attached to said pathway at a location upstream of said power nozzles.