초록 ▼

A fluidic oscillator is disclosed, wherein the fluidic oscillator includes a fluid source and a housing coupled to the fluid source. At least one recess is formed within the housing. An insert resides within each at least one recess; the insert provides at least one substantially flat surface. A flu

A fluidic oscillator is disclosed, wherein the fluidic oscillator includes a fluid source and a housing coupled to the fluid source. At least one recess is formed within the housing. An insert resides within each at least one recess; the insert provides at least one substantially flat surface. A fluid flowpath in the at least one substantially flat surface generates fluid pulses from fluid received from the fluid source.

대표청구항 ▼

1. A fluidic oscillator, comprising:a fluid source,a housing, wherein the housing couples to the fluid source,at least one recess formed within the housing,at least one insert residing within each at least one recess, wherein the at least one insert provides at least one substantially flat surface,a

1. A fluidic oscillator, comprising:a fluid source,a housing, wherein the housing couples to the fluid source,at least one recess formed within the housing,at least one insert residing within each at least one recess, wherein the at least one insert provides at least one substantially flat surface,a fluid flowpath on the at least one substantially flat surface, wherein the fluid flowpath generates fluid pulses from fluid received from the fluid source,at least one feedback passage in the fluid flowpath,at least one exit flowline that forms a fluid connection between the at least one feedback passage in the fluid flowpath and the housing, andat least one port on the housing that allows the fluid pulses to escape from the at least one exit flowline in the fluid flowpath to outside the housing.2. The fluidic oscillator of claim 1, wherein the at least one insert creates a fluid-tight seal with the recess.3. The fluidic oscillator of claim 1, wherein the at least one insert and the at least one recess are tapered.4. The fluidic oscillator of claim 1, wherein the at least one insert and the at least one recess are rectangular.5. The fluidic oscillator of claim 4, wherein the at least one insert further comprises a tab to lock the insert into the housing.6. The fluidic oscillator of claim 1, wherein the at least one insert comprises walls surrounding the fluid flowpath.7. The fluidic oscillator of claim 1, wherein the fluid flowpath comprises:an inlet into which fluid flows,a chamber having an upstream end and a downstream end, wherein the chamber is defined by a pair of outwardly-projecting sidewalls and wherein the inlet is disposed at the upstream end of the chamber,at least two feedback passages having opposed entrances at the downstream end of the chamber and opposed exits at the upstream end of the chamber near where the chamber joins the inlet,at least one exit flowline leaving each of the feedback passages, anda feedback cavity disposed at the downstream end of the chamber.8. The fluidic oscillator of claim 7, wherein the flowpath further comprises at least one forward jet exiting the feedback cavity.9. The fluidic oscillator of claim 8, wherein the at least one exit flowline has a cross-section, and wherein the at least one forward jet has a cross-section that is smaller than the cross-section of the at least one exit flowline.10. The fluidic oscillator of claim 1, wherein the at least one port is aligned with an exit flowline of the fluid flowpath when the at least one insert resides within the at least one recess.11. The fluidic oscillator of claim 1, wherein the housing is adapted to couple to a fluid flowline.12. The fluidic oscillator of claim 11, wherein the housing comprises at least one thread that is adapted to couple to a fluid flowline.13. The fluidic oscillator of claim 1, wherein the housing comprises a slot that creates a fluid-tight seal with a downstream end of the insert.14. A fluidic oscillator, comprising:a fluid source,a housing, wherein the housing is coupled to the fluid source,at least one tapered recess formed within the housing,at least one tapered insert residing within each at least one tapered recess, wherein the at least one tapered insert provides at least one substantially flat surface,an inlet into which fluid flows, wherein the inlet is formed on the at least one substantially flat surface,a chamber having an upstream end and a downstream end, wherein the chamber is formed on the at least one substantially flat surface, wherein the chamber is defined by a pair of outwardly-projecting sidewalls, and wherein the inlet is disposed at the upstream end of the chamber,at least two feedback passages formed on the at least one substantially flat surface, wherein the at least two feedback passages have opposed entrances at the downstream end of the chamber and opposed exits at the upstream end of the chamber near where the chamber joins the inlet,a feedback cavity formed on the at least one substantially flat surface, wherein the feedback cavity is disposed at the downstream end of the chamber,at least one exit flowline leaving each of the feedback passages, wherein the at least one exit flowline is formed on the at least one substantially flat surface, andat least one port in the housing that allows fluid to escape from the at least one exit flowline to outside of the housing.15. The fluidic oscillator of claim 14, wherein the at least one tapered insert creates a fluid-tight seal with the at least one tapered recess.16. The fluidic oscillator of claim 14, further comprising at least one forward jet formed within the at least one tapered insert, wherein the at least one forward jet exits the feedback cavity.17. The fluidic oscillator of claim 16, wherein the at least one exit flowline has a cross-section, and wherein the at least one forward jet has a cross-section that is smaller than the cross-section of the at least one exit flowline.18. The fluidic oscillator of claim 14, wherein the housing is adapted to couple to a fluid flowline.19. The fluidic oscillator of claim 14, wherein the housing further comprises a slot that creates a fluid-tight seal with a downstream end of the at least one tapered insert.20. A fluidic oscillator, comprising:a fluid source,a housing, wherein the housing couples to the fluid source,at least two recesses formed within the housing, wherein the at least two recesses are substantially evenly spaced about a central longitudinal axis of the housing,at least one insert residing within each of the at least two recesses, wherein the at least one insert provides at least one substantially flat surface,a fluid flowpath on the at least one substantially flat surface, wherein the fluid flowpath generates fluid pulses from fluid received from the fluid source, andat least one port on the housing that allows the fluid pulses to escape from the fluid flowpath to outside the housing.