# US 9,038,669 B2 · Systems and methods for managing pressure and flow rate > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,038,669 B2 - Document ID: US9038669B2 - Status: Granted - Kind: B2 - Application number: 12/369,006 - Filed: 2009-02-11 - Published: 2009-08-13 - Granted: 2015-05-26 - Earliest claimed: 2008-02-12 - Assignees: Sunita Rani - Applicants: Sunil Kumar - Inventors: Sunil Kumar - Web page: https://patentgrep.com/patent/US9038669B2 ## CPC - F16L 55/02718: {placed transversely} - Y10T 29/49826: Assembling or joining - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A device for controlling fluid flow pressure and flow rate is disclosed. The device includes a first orifice plate, a second orifice plate housed in a tubular structure. The first orifice plate includes a first orifice of a first diameter (d1) and the first orifice is positioned near an edge of the first orifice plate. The second orifice plate includes a second orifice of a second diameter (d2) and the second orifice is positioned near an edge of the second orifice plate. The tubular structure has an effective diameter (D) comprising the first orifice plate and the second orifice plate placed at perpendicular direction to the fluid flow within the tubular structure, separated by an optimum distance (X). ## Claims ### Claim 1 A device for managing pressure and flow rate of a fluid comprising: a first orifice plate having one first orifice, the one first orifice having a first diameter (d1), the one first orifice positioned near an edge of the first orifice plate; a second orifice plate having one second orifice, the one second orifice having a second diameter (d2), the one second orifice positioned near an edge of the second orifice plate; and a tubular structure having an effective diameter (D) comprising the first orifice plate and the second orifice plate placed at perpendicular direction to the fluid flow within the tubular structure, separated by a distance (X), wherein the pressure and/or the flow rate downstream of the device are lower than the pressure and/or flow rate upstream of the device and wherein the one first orifice and the one second orifice effect the lowering of the pressure and/or flow rate wherein the distance (X) between the first orifice plate and the second orifice plate is dependent on the first diameter (d1) and/or the second diameter (d2); and wherein the first orifice plate and the second orifice plate have a thickness of about 3 mm for the upstream pressure up to 14 kg/cm2 in a tubular structure having an effective diameter (D) of 13 mm. ### Claim 2 (depends on 1) The device of claim 1, wherein the one first orifice is positioned near the edge of the first orifice plate and the one second orifice is positioned near the edge of the second orifice plate, such that the first orifice and the second orifice are positioned to be diagonally opposite with respect to each other within the device. ### Claim 3 (depends on 1) The device of claim 1, wherein the first diameter and the second diameter are equal. ### Claim 4 (depends on 1) The device of claim 1, wherein the distance (X) is preferably equal to 6 times of the first diameter (d1) or 6 times of the second diameter (d2). ### Claim 5 (depends on 1) The device of claim 1, wherein the pressure and the flow rate at the down stream is dependent on the first diameter (d1) and/or the second diameter (d2). ### Claim 6 (depends on 1) The device of claim 1, wherein the first orifice and the second orifice are straight edged. ### Claim 7 (depends on 1) The device of claim 1, wherein the thickness of the first orifice plate and the second orifice plate depends on an upstream pressure of the fluid flow rate and the material of the tubular structure, the first and the second orifice plates. ### Claim 8 (depends on 1) The device of claim 1, wherein the effective diameter (D) is about 4 to about 6 times the first orifice diameter (d1) or the second orifice diameter (d2). ### Claim 9 (depends on 8) The device of claim 8, wherein the material comprises one or more of copper, bronze, iron, or metallic material. ### Claim 10 (depends on 1) The device of claim 1, wherein the pressure and the flow rate down stream of the device depend on the first orifice diameter (d1) and/or the second orifice diameter (d2). ### Claim 11 (depends on 1) The device of claim 1, wherein the distance between the two orifice plates is dependent on fluid physical characteristics and chemical characteristics. ### Claim 12 (depends on 11) The device of claim 11, wherein the fluid physical characteristics are selected from a group comprising viscosity, temperature, surface tension, dielectric constant, and density. ### Claim 13 (depends on 1) The device of claim 1, wherein the fluid comprises a liquid and/or a gas. ### Claim 14 (depends on 1) The device of claim 1, wherein the tubular structure comprises a cross sectional shape selectable from one of a circle, an ellipse, a polygon or an irregular cross section. ### Claim 15 (depends on 1) The device of claim 1, wherein the first orifice plate and the second orifice plate are configured to be removably fixed within the tubular structure and wherein the first orifice plate and the second orifice plate are rigidly fixed within the tubular structure. ### Claim 16 An apparatus for managing pressure and flow rate of fluid flow comprising: an inlet for receiving the incoming fluid flow; a device operatively coupled to the inlet, the device comprising: a first orifice plate having one first orifice, the one first orifice having a first diameter (d1), the one first orifice positioned near an edge of the first orifice plate, a second orifice plate having one second orifice, the one second orifice having a second diameter (d2), the one second orifice positioned near an edge of the second orifice plate, a tubular structure having an effective diameter (D) comprising the first orifice plate and the second orifice plate placed at perpendicular direction to the fluid flow within the tubular structure, separated by a distance (X); and an outlet for releasing the fluid flow, wherein the distance (X) between the first orifice plate and the second orifice plate is dependent on the first diameter (d1) and/or the second diameter (d2) and wherein the first orifice plate and the second orifice plate have a thickness of about 3 mm for, the upstream pressure up to 14 kg/cm2 in a tubular structure having an effective diameter (D) of 13 mm. ### Claim 17 (depends on 16) The apparatus of claim 16, wherein the distance (X) is preferably equal to 6 times of the first diameter (d1) or 6 times of the second diameter (d2). ### Claim 18 (depends on 16) The apparatus of claim 16, wherein the pressure and the flow rate at the down stream is dependent on the first diameter (d1) and/or the second diameter (d2). ### Claim 19 (depends on 16) The apparatus of claim 16, wherein the effective diameter (D) is about 4 to about 6 times the first orifice diameter (d1) or the second orifice diameter (d2). ### Claim 20 A method of manufacturing a device for controlling pressure and flow rate of a fluid flow, the method comprising: providing a tubular structure having a diameter (D); providing a first orifice plate having one first orifice rigidly fixed to an inlet edge of the tubular structure; and providing a second orifice plate having one second orifice rigidly fixed to an outlet edge of the tubular structure, wherein the first orifice plate and the second orifice plate are placed perpendicular to the fluid flow direction within the tubular structure, separated by an optimum distance (X), wherein the distance (X) between the first orifice plate and the second orifice plate is dependent on the first diameter (d1) and/or the second diameter (d2), and wherein the first orifice plate and the second orifice plate have a thickness of about 3 mm for the upstream pressure up to 14 kg/cm2 in a tubular structure having an effective diameter (D) of 13 mm.