Patents by Inventor Amar S. Wanni
Amar S. Wanni has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11041681Abstract: A clamping system secures to at least one tube in a tube bundle of a heat exchanger in order to reduce vibration damage. The clamping system includes a first clamping component having a J-shape, a second clamping component having an L-shape, a configuration where the first arc around the tube plus the second arc around the tube is equal to at least 100 degrees; and a means for resisting movement of the clamping components. The first clamping component with a J-shape covers a first arc around the tube. The second clamping component with an L-shape covers a second arc opposite the first arc. One of the means for resisting movement includes a stake, a nut, and a bolt.Type: GrantFiled: October 27, 2019Date of Patent: June 22, 2021Inventor: Amar S. Wanni
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Publication number: 20210123694Abstract: A clamping system secures to at least one tube in a tube bundle of a heat exchanger in order to reduce vibration damage. The clamping system includes a first clamping component having a J-shape, a second clamping component having an L-shape, a configuration where the first arc around the tube plus the second arc around the tube is equal to at least 100 degrees; and a means for resisting movement of the clamping components. The first clamping component with a J-shape covers a first arc around the tube. The second clamping component with an L-shape covers a second arc opposite the first arc. One of the means for resisting movement includes a stake, a nut, and a bolt.Type: ApplicationFiled: October 27, 2019Publication date: April 29, 2021Inventor: Amar S. Wanni
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Patent number: 10844830Abstract: A wave energy converter situated on a seabed includes a pair of pistons, a means for producing energy within a vessel, and a water-conveyance pipe attached to the vessel. The pistons reciprocate using differential pressure to extract energy from a wave transiting on the surface of a body of water. Water receiving ports at high and low pressure points create a differential pressure to act on the pistons and push them in opposite directions. A hydraulic cylinder or a linear alternator is attached between the pair of pistons to extract the energy.Type: GrantFiled: December 14, 2019Date of Patent: November 24, 2020Inventor: Amar S. Wanni
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Patent number: 9498738Abstract: Systems and methods are provided for performing field enhanced separations on a feed, such as a petroleum feed, a refinery feed, or another type of hydrocarbonaceous feed. The system can allow for increased throughput of feed per volume of the separation device or system while performing a desired amount of field enhanced separation. The field enhanced separation can include separation by thermal diffusion, optionally enhanced by the presence of an electric field in the channel for performing the separation by thermal diffusion.Type: GrantFiled: July 18, 2014Date of Patent: November 22, 2016Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Amar S. Wanni, Lei Zhang, Jason M. McMullan, Gregory J. DeMartin, Michel Daage
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Patent number: 9458819Abstract: A wave energy converter located on the seabed extracts the potential energy in a wave transiting over the wave energy converter. The converter includes a vessel arranged so that its longitudinal axis is located near seabed so that an upstream opening near one end sits below the crest of the wave when and a downstream opening near the other end sits below the trough of the wave. Repetitive waves flowing over the converter cause a cyclic difference in the weight of the water above the openings. This cyclic weight differential in turn creates a horizontal cyclic force acting on the piston, which in turn acts on a hydraulic cylinder to create a high-pressure hydraulic fluid. A vertical embodiment operating on similar principles is also disclosed.Type: GrantFiled: July 27, 2015Date of Patent: October 4, 2016Inventor: Amar S. Wanni
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Publication number: 20160252070Abstract: A wave energy converter located on the seabed extracts the potential energy in a wave transiting over the wave energy converter. The converter includes a vessel arranged so that its longitudinal axis is located near seabed so that an upstream opening near one end sits below the crest of the wave when and a downstream opening near the other end sits below the trough of the wave. Repetitive waves flowing over the converter cause a cyclic difference in the weight of the water above the openings. This cyclic weight differential in turn creates a horizontal cyclic force acting on the piston, which in turn acts on a hydraulic cylinder to create a high-pressure hydraulic fluid. A vertical embodiment operating on similar principles is also disclosed.Type: ApplicationFiled: July 27, 2015Publication date: September 1, 2016Inventor: Amar S. Wanni
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Publication number: 20160016097Abstract: Systems and methods are provided for performing field enhanced separations on a feed, such as a petroleum feed, a refinery feed, or another type of hydrocarbonaceous feed. The system can allow for increased throughput of feed per volume of the separation device or system while performing a desired amount of field enhanced separation. The field enhanced separation can include separation by thermal diffusion, optionally enhanced by the presence of an electric field in the channel for performing the separation by thermal diffusion.Type: ApplicationFiled: July 18, 2014Publication date: January 21, 2016Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Amar S. Wanni, Lei Zhang, Jason M. McMullan, Gregory J. DeMartin, Michel Daage
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Patent number: 9034078Abstract: A method and apparatus are described for swing adsorption processes. The method includes obtaining different plates, wherein the plates have gaseous openings and a utility fluid opening. Then, the gaseous openings are substantially oriented along a common axis for gaseous openings and the plates are diffusion bonded. Once diffusion bonded, the gaseous openings within the module are wash coated with an adsorbent material.Type: GrantFiled: July 24, 2013Date of Patent: May 19, 2015Assignee: ExxonMobil Upstream Research CompanyInventors: Amar S. Wanni, Chithranjan Nadarajah, Jeffrey W. Frederick, Narasimhan Sundaram
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Publication number: 20140060322Abstract: A method and apparatus are described for swing adsorption processes. The method includes obtaining different plates, wherein the plates have gaseous openings and a utility fluid opening. Then, the gaseous openings are substantially oriented along a common axis for gaseous openings and the plates are diffusion bonded. Once diffusion bonded, the gaseous openings within the module are wash coated with an adsorbent material.Type: ApplicationFiled: July 24, 2013Publication date: March 6, 2014Inventors: Amar S. Wanni, Chithranjan Nadarajah, Jeffrey W. Frederick, Narasimhan Sundaram
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Patent number: 8349267Abstract: Targeted application of anti-fouling mechanisms in a heat exchange system produces higher rates of energy recovery. The anti-fouling mechanisms with high mitigation rates can be deployed at only the hottest portions of a pre-heat train that experience the highest rates of fouling and heat loss. In application, bundles of corrosion resistant smoothed tubes are deployed in the late pre-heat train to significantly reduce the formation of harder deposits. Vibration can be used as an adjunct approach in conjunction with the corrosion resistant, smooth tubes, or deployed alone on existing bundles. The use of high performing, more durable exchangers in select locations justifies the increased cost of these components.Type: GrantFiled: September 26, 2008Date of Patent: January 8, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Ian A Cody, Amar S. Wanni, Robert C. Welch, James E. Feather, Mark A. Greaney, Limin Song, Jasmina Poturovic
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Publication number: 20120273178Abstract: An insert is provided in a flow path adjacent to the input and/or output port of a plate heat exchanger to shield heat transfer elements adjacent to the port from high velocity flow. By deflecting and redirecting the high velocity flow from the port, vibration induced stress to the heat transfer elements can be minimized. The insert is provided with a converging nozzle that directs the flow into a narrowed body. The outlet of the insert can be formed as an open end of the body or as a contoured opening in the side wall of the body. Flow can also be more uniformly distributed to the flow channels defined between the heat transfer elements.Type: ApplicationFiled: July 10, 2012Publication date: November 1, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Amar S WANNI, Thomas M. RUDY, Douglas F. SLINGERLAND, Chih Pong SIN
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Patent number: 8240367Abstract: An insert is provided in a flow path adjacent to the input and/or output port of a plate heat exchanger to shield heat transfer elements adjacent to the port from high velocity flow. By deflecting and redirecting the high velocity flow from the port, vibration induced stress to the heat transfer elements can be minimized. The insert is provided with a converging nozzle that directs the flow into a narrowed body. The outlet of the insert can be formed as an open end of the body or as a contoured opening in the side wall of the body. Flow can also be more uniformly distributed to the flow channels defined between the heat transfer elements.Type: GrantFiled: June 28, 2007Date of Patent: August 14, 2012Assignee: ExxonMobil Research and Engineering CompanyInventors: Amar S. Wanni, Thomas M. Rudy, Douglas F. Slingerland, Chih Pong Sin
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Publication number: 20120145370Abstract: Method of performing a maintenance operation on a process equipment having at least one bundle of elongated members that includes providing an inflatable spreading tool in a deflated condition, inserting the inflatable spreading tool between at least two of the elongated members, inflating the inflatable spreading tool so as to increase the separation between the elongated members. A system for use in facilitating a maintenance operation on a process equipment having at least one bundle of elongated members is also provided.Type: ApplicationFiled: November 17, 2011Publication date: June 14, 2012Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Amar S. WANNI, Alain DeWAGTER, Michael J. REUTHER, Zdenka F. RUZEK
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Patent number: 8002983Abstract: A strainer device for a fluid flow circuit removes debris and solid particles from the fluid flow to prevent plugging and reduce fouling of the system. The assembly includes a chamber that can be hydrocyclonic, a collection area, a screen assembly and a distributor that allows selective connection to a flushing fluid. The fluid flows through the chamber past the strainer device, with large particles collecting in the collection area under the influence of gravity and smaller solid particles being collected in the screen assembly. Particles can be flushed from the system by selectively activating the distributor to back flush the screen assembly and sweep the collection area free of solid particles without disassembling the system.Type: GrantFiled: April 10, 2007Date of Patent: August 23, 2011Assignee: ExxonMobil Research & Engineering CompanyInventors: Amar S. Wanni, Thomas M. Rudy, Claude A. Lafleur, Clifford A. Hay, Tomas R. Melli
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Patent number: 7793708Abstract: A tube support device is used with tube bundle devices such as heat exchangers or, condensers with in-line tube arrangements (rectangular tube configuration) to mitigate the possibility of tube damage from flow-induced vibration in the tube bundle. The tube support comprises an elongated member or strip which is intended to be inserted in a tube lane between the tubes of the tube bundle. Raised-tube-engaging zones which include transverse, arcuate tube-receiving saddles are disposed along the length of the strip at successive longitudinal locations corresponding to the tube positions in the bundle. These tube-engaging zones extend laterally out, away from the medial plane of the strip, so that the saddles receive and closely hold the tubes on opposite sides of the tube lane.Type: GrantFiled: May 13, 2005Date of Patent: September 14, 2010Assignee: ExxonMobil Research & Engineering CompanyInventors: Amar S. Wanni, Marciano Madrid Calanog, Thomas M. Rudy, Malcolm D. Keen
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Publication number: 20100116478Abstract: A tube bundle device having at least one displaceable baffle which supports the tubes in the bundle device is disclosed in order to reduce tube vibration. The displaceable baffle includes at least two displaceable portions, which can be moved to installed position such that tubes in a tube bundle are deflected.Type: ApplicationFiled: November 12, 2008Publication date: May 13, 2010Applicant: ExxonMobil Research and Engineering CompanyInventor: Amar S. Wanni
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Patent number: 7699093Abstract: A tube support device for a tube bundle having a plurality of elongated tubes with a U-shaped bend portion is disclosed. The tube support device includes an elongated longitudinally extending strip having a pair of opposing faces. A plurality of tube engaging members extend from the pair of opposing faces. The tube support device includes an engagement assembly formed on one end of the tube support device. The engagement assembly is adapted to engage the anchor assembly positioned within the tube bundle, whereby the tube support device can be rotated into the desired orientation between the tubes to prevent vibration damage.Type: GrantFiled: October 6, 2006Date of Patent: April 20, 2010Assignee: ExxonMobil Research and Engineering CompanyInventors: Amar S. Wanni, Thomas M. Rudy
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Publication number: 20090242181Abstract: A tube bundle for a shell and tube type heat exchanger has a support system that allows simple fabrication and provides a secure support of the tubes to mitigate vibration and problems associated with vibration. The tube bundle is composed of tubes that are supported by spaced cages having support rods sized to allow ample clearance with the adjacent tubes and configured in alternating positions and alternating orientations so that sets of four widely spaced cages form a complete support network. To ensure secure support to avoid vibration, sets of support stakes are inserted adjacent to (or in between) the cages to bias the tubes against the support rods of the cages. By this, fabrication is simplified, but a secure support system is maintained.Type: ApplicationFiled: March 27, 2008Publication date: October 1, 2009Applicant: ExxonMobil Research and Engineering Company Law DepartmentInventors: Amar S. Wanni, Thomas M. Rudy, Tomas R. Melli
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Publication number: 20090090613Abstract: Targeted application of anti-fouling mechanisms in a heat exchange system produces higher rates of energy recovery. The anti-fouling mechanisms with high mitigation rates can be deployed at only the hottest portions of a pre-heat train that experience the highest rates of fouling and heat loss. In application, bundles of corrosion resistant smoothed tubes are deployed in the late pre-heat train to significantly reduce the formation of harder deposits. Vibration can be used as an adjunct approach in conjunction with the corrosion resistant, smooth tubes, or deployed alone on existing bundles. The use of high performing, more durable exchangers in select locations justifies the increased cost of these components.Type: ApplicationFiled: September 26, 2008Publication date: April 9, 2009Applicant: ExxonMobil Research and Engineering CompanyInventors: Ian A. Cody, Amar S. Wanni, Robert C. Welch, James E. Feather, Mark A. Greaney, Limin Song, Jasmina Poturovic
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Patent number: 7506684Abstract: A support device for a bundle of elongated members and a locking assembly for securing the same within the bundle are disclosed. The support device includes an elongated support adapted to be located between adjacent spaced rows of elongated members, wherein the elongated support having a first side and a second side, wherein the first side being arranged to be positioned adjacent one row of the spaced rows of elongated members and the second side being arranged to be positioned adjacent another row of the spaced rows of elongated members. The support device includes a plurality of support members spaced along the elongated support, wherein each support member have a first supporting assembly located on the first side for supporting one of the elongated members in the one row and a second supporting assembly located on the second side for supporting one of the elongated members in the other row.Type: GrantFiled: June 20, 2007Date of Patent: March 24, 2009Assignee: ExxonMobil Research & Engineering CompanyInventors: Amar S. Wanni, Thomas M. Rudy