Device for limiting vortex flow
AssigneeDonaldson Company, Inc.
InventorGirma Wolde-Michael
Life of this patent
Estimating the term…
Abstract
A device (90) for limiting the vortex flow of a fluid is disclosed. The device includes means (91) for securing the device to a fixed position in a forced vortex environment at a location near the origin of the vortex flow. Means (94-98) for redeveloping an interrupted vortex flow and allowing the passage of the vortex air core therethrough is also provided but is spaced apart from but connected to the securing means (91). Means (93) for interrupting the vortex flow near its origin includes a passageway defined by the securing means (91) and the means for redeveloping the vortex flow.
Claims13
In a forced vortex environment including a structure for containing fluid, said structure having inlet means, and an outlet opening positioned with respect to said inlet means so as to create a fluid vortex flow in the fluid contained within the structure, said fluid vortex flow having an air core originating at said outlet opening, means for interrupting said air core near said outlet opening and for redeveloping the interrupted air core, said means comprising:
- a vortex generating member having an opening extending therethrough;
- and
- means for supporting said vortex generating member in spaced apart relation to said outlet opening;
- said supporting means defining a fluid passageway between said vortex generating member and said outlet opening with said passageway being constructed and designed to allow flow therethrough of fluid contained in said structure in a manner interrupting said air core;
- said vortex generating member being shaped and configured to regenerate said interrupted vortex air core and allow said regenerated air core to extend upwardly through said opening in an uninterrupted state.
In a container constructed and designed to impart a vortex flow to fluid contained therein, the container having a vertical axis and an outlet opening centered on said axis, a device for limiting the vortex flow near the outlet opening, said device comprising:
- means for securing said device to said outlet opening allowing fluid flow therethrough in a manner interrupting the vortex flow of the fluid at said outlet opening;
- a member positioned apart from said securing means, said member having an open first end connected to said securing means, at least one said wall tapering generally inwardly and upwardly from said first end to said second end, said second end including a central portion having an opening extending therethrough, the center of said opening being positioned on said vertical axis, said interrupted vortex flow being redeveloped by said member side wall and said opening;
- and
- means for positioning said member in a spaced apart, coaxial relationship to said securing means, said positioning means being constructed and designed to allow fluid exterior to said device to flow generally inwardly to said outlet opening, thereby interrupting said vortex flow adjacent said outlet opening.
In combination with a container having walls defining a generally centrally located, bottommost outlet opening, a generally circular cross-section, and inlet means for introducing a fluid into said container in a manner creating with said outlet opening a fluid vortex, the fluid vortex having a central portion defining a rotating surface extending through said fluid to said outlet opening, a device for interrupting the rotating surface of a fluid vortex near the container outlet opening, said device comprising:
- a vortex generating member having an opening extending therethrough;
- and
- means for supporting said vortex generating member in spaced apart relation to said outlet opening,
- said supporting means defining a fluid passageway between said vortex generating member and said outlet opening for flow therethrough of fluid exterior to said device to interrupt said fluid vortex rotating surface,
- said vortex generating member being shaped and configured to regenerate said interrupted fluid vortex rotating surface and allow said rotating surface to extend upwardly through said opening in an uninterrupted state.
In a system for separating a heavier liquid and a lighter liquid from a fluid mixture:
- a container adapted to receive said fluid mixture comprising walls defining a generally centrally located bottommost outlet opening, said container having a generally circular cross-section and inlet means for introducing a fluid into said container in a manner to create with said outlet opening a fluid vortex, said fluid vortex having a central portion with a rotating surface extending through said fluid to said outlet opening;
- means for separating said heavier liquid from said lighter liquid;
- means for transferring fluid from said container outlet opening to said separating means;
- means for recirculating at least a portion of said fluid back to said container through said container inlet means to maintain said fluid vortex, whereby said lighter liquid being carried upon the surface of the fluid is carried by said central rotating surface to said container outlet opening;
- the improvement comprising a vortex generating member having an opening extending therethrough;
- and means for supporting said generating member within said container in spaced apart relation to said outlet opening, said supporting means defining a passageway between said member and said outlet opening for flow therethrough of fluid to interrupt said rotating surface of said vortex central portion, said vortex generating member being shaped and configured to regenerate said vortex and allow said rotating surface of said vortex central portion to extend upwardly through said opening in an uninterrupted state.
Dependencies are inferred from the claim text.