Fluidic oscillator

A fluidic oscillator comprising:

• at least one channel including an interacting cavity disposed therein, at least one first inlet communicating with the interacting cavity to flow fluid inward, and at least one first outlet communicating with the interacting cavity to spray the fluid flowing through the interacting cavity outward, characterized in that:
• at least one turbulent flow passage is used to guide a fluid in the at least one turbulent flow passage to flow into the interacting cavity or cavities so as to interact with the fluid from the first inlet(s) from one of two opposite first longitudinal walls of the interacting cavity or cavities, such that a turbulent flow effect is generated in the interacting cavity or cavities, and then the fluid in the interacting cavity flows out of the first outlet(s) to generate oscillatory spray;
• the fluidic oscillator includes one channel, and the at least one turbulent flow passage is fixed in a second longitudinal wall of the channel;
• the at least one turbulent flow passage includes a second inlet fixed therein to flow the fluid inward and a second outlet to guide the fluid in the at least one turbulent flow passage to the first outlet of the interacting cavity of the channel individually;
• the second outlet is located at a middle portion of the interacting cavity;
• the interacting cavity or cavities are defined between middle sections of two symmetrical stopping members attached on the first outlet, and each stopping member includes one control passageway disposed on an outer side thereof;
• a connection of the at least one turbulent flow passage and the interacting cavity or cavities are located at the middle portion of the interacting cavity;
• a diameter of the interacting cavity of the fluidic oscillator is within 5 mm to 20 mm, and a range of a flowing path of the fluid in the interacting cavity is within 5 mm to 20 mm.