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US 7,802,583 B2Granted
Fluid flow control device
AssigneeNew Pax, Inc.
InventorJayden David Harman
Life of this patent
Estimating the term…
Abstract
A flow controller adapted to control a flow of fluid within the flow controller, the flow controller having a flow path adapted to convey said fluid, wherein the cross-sectional area of the flow path varies along the flow path and wherein in at least a portion of its length the flow controller comprises an active surface capable of influencing the fluid flow through the flow path to cause vortical motion of the fluid within the fluid pathway.
Claims27
A method for altering a flow of fluid, the method comprising:
- receiving fluid from a fluid source, receipt of the fluid occurring at a fluid flow control apparatus;
- inducing the fluid received from the fluid source to have a rotational motion about an axis via a flow path of the fluid flow control apparatus, the flow path situated between an inlet and an outlet of the fluid flow control apparatus, the flow path including a cross-sectional area that progressively decreases from the inlet to a region of maximum constriction and progressively increases from the region of maximum constriction to the outlet, wherein the cross-sectional area includes both a region of increasing diameter and a region of decreasing diameter between the inlet and the region of maximum constriction and further includes both a region of increasing diameter and a region of decreasing diameter between the region of maximum constriction and the outlet;
- and
- expelling from the fluid flow control apparatus the fluid received from the fluid source, the expelled fluid including a vortical motion resulting from the induced rotation about the axis, and wherein a pressure differentiation is induced in the fluid between the receipt and expulsion of the fluid, the differentiation induced while the fluid traverses the fluid flow control apparatus.
1 more element
A fluid flow control apparatus for altering a flow of fluid, the fluid flow control apparatus comprising:
- an inlet configured to receive fluid from a fluid source;
- an outlet configured to expel the fluid received from the fluid source;
- and
- a flow path situated between the inlet and the outlet and within a body of the fluid flow controller apparatus, the flow path including a cross-sectional area that progressively decreases from the inlet to a region of maximum constriction and progressively increases from the region of maximum constriction to the outlet, wherein the cross-sectional area includes both a region of increasing diameter and a region of decreasing diameter between the inlet and the region of maximum constriction and further includes both a region of increasing diameter and a region of decreasing diameter between the region of maximum constriction and the outlet, the cross-sectional area varying along the length of the flow path thereby inducing pressure differentiation within the body of the fluid flow control apparatus, the flow path configured to convey the fluid from the inlet to the outlet and wherein at least a portion of the length of the body includes an internal surface area configured to induce a rotational motion about an axis as the fluid traverses the flow path thereby resulting in a vortical motion in the fluid as the fluid is expelled from the outlet.
1 more element
Dependencies are inferred from the claim text.