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US 6,976,507 B1Granted
Apparatus for creating pulsating fluid flow
AssigneeHalliburton Energy Services, Inc.
InventorsEarl D. Webb, James C. Tucker, Mardy L. Meadows, Robert L. Pipkin
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Abstract
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.
Claims20
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, and
- at 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.
5 more elements
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, and
- at least one port in the housing that allows fluid to escape from the at least one exit flowline to outside of the housing.
7 more elements
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, and
- at least one port on the housing that allows the fluid pulses to escape from the fluid flowpath to outside the housing.
3 more elements
Dependencies are inferred from the claim text.