초록 ▼

A fluidic oscillator includes an oscillator body having two attachment walls defining an oscillating chamber therebetween, an inlet duct communicatively extended from the oscillating chamber for guiding a flow of fluid entering into the oscillating chamber, an outlet duct communicatively extended fr

A fluidic oscillator includes an oscillator body having two attachment walls defining an oscillating chamber therebetween, an inlet duct communicatively extended from the oscillating chamber for guiding a flow of fluid entering into the oscillating chamber, an outlet duct communicatively extended from the oscillating chamber for guiding the flow of fluid exiting from the oscillating chamber, a flow splitter provided at the outlet duct to communicate with the oscillating chamber, and two feedback channels communicating with the oscillating chamber. Each of the attachment walls has an upstream portion and a downstream portion integrally extended therefrom as a step shouldering manner to form a modulating shoulder for modulating an oscillation of the flow within the oscillation chamber so as to stabilize the flow of the fluid to pass through the oscillator body.

대표청구항 ▼

1. A fluidic oscillator, comprising:an oscillator body having two attachment walls defining an oscillating chamber therebetween, an inlet duct communicatively extended from said oscillating chamber for guiding a flow of fluid entering into said oscillating chamber, an outlet duct communicatively ext

1. A fluidic oscillator, comprising:an oscillator body having two attachment walls defining an oscillating chamber therebetween, an inlet duct communicatively extended from said oscillating chamber for guiding a flow of fluid entering into said oscillating chamber, an outlet duct communicatively extended from said oscillating chamber to align with said inlet duct for guiding said flow of fluid exiting from said oscillating chamber, a flow splitter provided at said outlet duct to communicate with said oscillating chamber, and two feedback channels communicating with said oscillating chamber; wherein each of said feedback channels is extended from said outlet duct at said flow splitter to said inlet duct for splitting said flow of fluid to flow from said oscillating chamber back to said inlet duct; wherein each of said attachment walls has an upstream portion and a downstream portion integrally extended therefrom as a step shouldering manner to form a modulating shoulder for modulating an oscillation of said flow within said oscillation chamber so as to stabilize said flow of fluid to pass through said oscillator body. 2. A fluidic oscillator, as recited in claim 1, wherein said modulating shoulder is integrally formed between said upstream portion of each of said attachment walls and said downstream portion thereof to define a step-shouldering angle of said modulating shoulder, wherein said step-shouldering angle of said modulating shoulder is formed at 90°.3. A fluidic oscillator, as recited in claim 1, wherein a ratio of said upstream portion to said downstream portion of each of said attachment walls is configured from 2:1 to 10:1.4. A fluidic oscillator, as recited in claim 2, wherein a ratio of said upstream portion to said downstream portion of each of said attachment walls is configured from 2:1 to 10:1.5. A fluidic oscillator, as recited in claim 1, wherein said two attachment walls are inclinedly extended from said inlet duct to said outlet duct to define a span angle between said two attachment walls such that a width of said oscillating chamber is increasing from said inlet duct to said outlet duct, wherein said span angle has an operation range from 10° to 60°.6. A fluidic oscillator, as recited in claim 2, wherein said two attachment walls are inclinedly extended from said inlet duct to said outlet duct to define a span angle between said two attachment walls such that a width of said oscillating chamber is increasing from said inlet duct to said outlet duct, wherein said span angle has an operation range from 10° to 60°.7. A fluidic oscillator, as recited in claim 4, wherein said two attachment walls are inclinedly extended from said inlet duct to said outlet duct to define a span angle between said two attachment walls such that a width of said oscillating chamber is increasing from said inlet duct to said outlet duct, wherein said span angle has an operation range from 10° to 60°.8. A fluid oscillator, as recited in claim 1, wherein a ratio of depth to width of said inlet duct is configured from 1:10 to 1:100.9. A fluid oscillator, as recited in claim 2, wherein a ratio of depth to width of said inlet duct is configured from 1:10 to 1:100.10. A fluid oscillator, as recited in claim 4, wherein a ratio of depth to width of said inlet duct is configured from 1:10 to 1:100.11. A fluid oscillator, as recited in claim 7, wherein a ratio of depth to width of said inlet duct is configured from 1:10 to 1:100.12. A fluid oscillator, as recited in claim 1, further comprising a sealing cover sealedly mounted on said oscillator body to conceal said oscillating chamber, wherein said sealing cover has an inlet through hole and an outlet through hole spacedly formed thereon to align with said inlet duct and said outlet duct of said oscillator body respectively for guiding said flow of fluid to flow into said inlet duct through said inlet through hole and to flow out from said outlet duct through said outlet through hole.13. A fluid oscillator, as recited in claim 2, further comprising a sealing cover sealedly mounted on said oscillator body to conceal said oscillating chamber, wherein said sealing cover has an inlet through hole and an outlet through hole spacedly formed thereon to align with said inlet duct and said outlet duct of said oscillator body respectively for guiding said flow of fluid to flow into said inlet duct through said inlet through hole and to flow out from said outlet duct through said outlet through hole.14. A fluid oscillator, as recited in claim 4, further comprising a sealing cover sealedly mounted on said oscillator body to conceal said oscillating chamber, wherein said sealing cover has an inlet through hole and an outlet through hole spacedly formed thereon to align with said inlet duct and said outlet duct of said oscillator body respectively for guiding said flow of fluid to flow into said inlet duct through said inlet through hole and to flow out from said outlet duct through said outlet through hole.15. A fluid oscillator, as recited in claim 7, further comprising a sealing cover sealedly mounted on said oscillator body to conceal said oscillating chamber, wherein said sealing cover has an inlet through hole and an outlet through hole spacedly formed thereon to align with said inlet duct and said outlet duct of said oscillator body respectively for guiding said flow of fluid to flow into said inlet duct through said inlet through hole and to flow out from said outlet duct through said outlet through hole.16. A fluid oscillator, as recited in claim 11, further comprising a sealing cover sealedly mounted on said oscillator body to conceal said oscillating chamber, wherein said sealing cover has an inlet through hole and an outlet through hole spacedly formed thereon to align with said inlet duct and said outlet duct of said oscillator body respectively for guiding said flow of fluid to flow into said inlet duct through said inlet through hole and to flow out from said outlet duct through said outlet through hole.17. A fluidic oscillator, as recited in claim 1, wherein an angle of said flow splitter is configured from 800 to 105° for amplifying a feedback effect.18. A fluidic oscillator, as recited in claim 7, wherein an angle of said flow splitter is configured from 80° to 105° for amplifying a feedback effect.19. A fluidic oscillator, as recited in claim 11, wherein an angle of said flow splitter is configured from 80° to 105° for amplifying a feedback effect.20. A fluidic oscillator, as recited in claim 16, wherein an angle of said flow splitter is configured from 80° to 105° for amplifying a feedback effect.