Tapered Conduit Means Patents (Class 165/147)
  • Patent number: 11003227
    Abstract: There is provided a heat sink in which the thermal resistance from a portion where the heat sink directly or indirectly makes contact with a heat-generating device to a portion where the heat sink makes contact with a coolant is set to be a value that is different from the thermal resistance at a different position in the flowing direction of the coolant, so that it is made possible to suppress the temperature difference between the upstream end and the downstream end of the heat-generating device.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: May 11, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kazuki Sakata, Masasi Sakai, Masayosi Tamura, Seiji Haga
  • Patent number: 10921066
    Abstract: The present invention relates to an enhanced heat dissipation module, a cooling fin structure and a stamping method thereof. The enhanced heat dissipation module includes a first cooling fin and a second cooling fin. The first cooling fin includes a first tapered tunnel protruding outwards, and the second cooling fin includes a second tapered tunnel protruding outwards. The first tapered tunnel and the second tapered tunnel jointly encircle and form a flow guide channel. Accordingly, a pressure difference is generated by hot air passing through the tapered tunnels, thereby increasing natural thermal convection and further enhancing heat dissipation efficiency of the cooling fins.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: February 16, 2021
    Assignee: GETAC TECHNOLOGY CORPORATION
    Inventor: Chen-Ping Wang
  • Patent number: 10760857
    Abstract: The present invention relates to a tube for a heat exchanger, wherein at least a part of the tube has a variable cross-section in longitudinal direction, wherein a cross-sectional area decreases from a maximum value close to an outer end of the tube to a minimum value close to an opposite outer end thereof. The invention further relates to a heat exchanger provided with at least one such tube and to a central heating installation and a tap water system comprising such a heat exchanger.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: September 1, 2020
    Assignee: Intergas Heating Assets B.V.
    Inventor: Harm Bosscher
  • Patent number: 10699829
    Abstract: A cooling system for use in a superconducting magnet comprising a high temperature superconductor, HTS, coil. The cooling system comprises a refrigeration unit, one or more coolant channels, and a pumping unit. The refrigeration unit is configured to cool a gas, wherein the gas is hydrogen or helium. The one or more coolant channels are configured to be placed in thermal contact with components of the superconducting magnet and to carry said gas. The pumping unit is configured to pump said gas through the coolant channels. The refrigeration unit and pumping unit are configured to maintain the gas at a pressure and temperature such that a Joule-Thompson coefficient of the gas is positive, and the coolant channel is configured to reduce the pressure of gas as it flows through the channel by one or more of a throttle, a valve, and choice and/or variance of a cross section of the coolant channel.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 30, 2020
    Assignee: TOKAMAK ENERGY LTD
    Inventors: Charles Monroe, Paul Noonan
  • Patent number: 10655918
    Abstract: An improved indirect heat exchanger is provided which is comprised of a plurality of coil circuits, with each coil circuit comprised of an indirect heat exchange section tube run or plate. Each tube run or plate has at least one change in its geometric shape or may have a progressive change in its geometric shape proceeding from the inlet to the outlet of the circuit. The change in geometric shape along the circuit length allows simultaneously balancing of the external airflow, internal heat transfer coefficients, internal fluid side pressure drop, cross sectional area and heat transfer surface area to optimize heat transfer.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 19, 2020
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: Andrew Beaver, David Andrew Aaron, Yohann Lilian Rousselet
  • Patent number: 10641554
    Abstract: An improved indirect heat exchanger is provided which is comprised of a plurality of coil circuits, with each coil circuit comprised of an indirect heat exchange section tube run or plate. Each tube run or plate has at least one change in its geometric shape or may have a progressive change in its geometric shape proceeding from the inlet to the outlet of the circuit. The change in geometric shape along the circuit length allows simultaneously balancing of the external airflow, internal heat transfer coefficients, internal fluid side pressure drop, cross sectional area and heat transfer surface area to optimize heat transfer.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 5, 2020
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: Andrew Beaver, David Andrew Aaron, Yohann Lilian Rousselet
  • Patent number: 10571197
    Abstract: An improved indirect heat exchanger is provided which is comprised of a plurality of coil circuits, with each coil circuit comprised of an indirect heat exchange section tube run or plate. Each tube run or plate has at least one change in its geometric shape or may have a progressive change in its geometric shape proceeding from the inlet to the outlet of the circuit. The change in geometric shape along the circuit length allows simultaneously balancing of the external airflow, internal heat transfer coefficients, internal fluid side pressure drop, cross sectional area and heat transfer surface area to optimize heat transfer.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: February 25, 2020
    Assignee: Baltimore Aircoil Company, Inc.
    Inventors: Andrew Beaver, David Andrew Aaron, Yohann Lilian Rousselet
  • Patent number: 10302369
    Abstract: A non-circular coolant passage is disclosed, which includes one or more walls axially defining a flow path; an inlet connecting to a first end of the flow path; and an exit connecting to a second end of the flow path, wherein a size of a passage cross-section varies in the axial direction. In certain exemplary embodiments the passage cross-section size varies uniformly, while in others the passage cross-section size varies incrementally. In certain exemplary embodiments, an angular orientation of the passage cross-section varies in the axial direction. The cross-section angular orientation can vary uniformly, incrementally, or a combination of both. In still other embodiments, both the size of the passage cross-section and the angular orientation of the passage cross-section vary in the axial direction. In these embodiments, the passage cross-section size and/or the angular orientation of the passage cross-section can vary uniformly, incrementally, and/or a combination of the two.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: May 28, 2019
    Assignee: U.S. Department of Energy
    Inventor: Brett W. Siebert
  • Patent number: 10285305
    Abstract: A heat dissipating system includes a wind tunnel, a first electronic element, and a second electronic element. The wind tunnel defines a top air inlet channel and a separated bottom, and a top air discharging channel and a separated bottom air discharging channel. Air entering the bottom air inlet channel dissipates heat produced by the first electronic element to the top air discharging channel, to flow out of the wind tunnel. Air entering the top air inlet channel flows to the bottom air discharging channel to dissipate heat produced by the second electronic element, this arrangement avoids heated air from one element being exhausted onto another element.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: May 7, 2019
    Assignees: HONGFUJIN PRECISION INDUSTRY (WUHAN) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Yi-Lin Yang, Chung-Jen Hung, Ching-Jou Chen
  • Patent number: 10168060
    Abstract: An air-conditioning apparatus includes a compressor for compressing and discharging refrigerant; an outdoor heat exchanger for exchanging heat between the refrigerant and a heat medium that enters the outdoor heat exchanger; an indoor heat exchanger for exchanging heat between the refrigerant and a surrounding medium of use; a bypass pipe for bypassing the refrigerant that is to enter the outdoor heat exchanger; and a bypass flow control valve arranged on the bypass pipe, for adjusting a flow of the refrigerant that is to enter the outdoor heat exchanger, in which the outdoor heat exchanger includes a first passage through which the refrigerant flows, and a second passage through which the heat medium flows, and in which the first passage allows the refrigerant to flow upward.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: January 1, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kosuke Tanaka, Hirofumi Koge, Koji Azuma
  • Patent number: 10088250
    Abstract: A counter-flow heat exchanger comprising a heat exchanger core including an inner wall and an outer wall radially outward and spaced apart from the inner wall. A first flow path is defined within the inner wall and a second flow path is defined between the inner wall and the outer wall. The heat exchanger core includes a primary flow inlet, a primary flow outlet and a middle portion therebetween. The inner and outer walls are concentric at the primary flow inlet of the heat exchanger core. The inner wall defines a first set of channels extending axially from the primary flow inlet to the middle portion of the heat exchanger core diverging away from a radial center of the heat exchanger core. The inner wall and the outer wall define a second set of channels extending axially from the primary flow inlet to the middle portion of the heat exchanger core converging toward the radial center of the heat exchanger core.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 2, 2018
    Assignee: Hamilton Sundstrand Corporation
    Inventor: Joseph Turney
  • Patent number: 9982570
    Abstract: An evaporator (1), for evaporating a liquid (4), particularly for a waste heat utilization device of an internal combustion engine, includes a plurality of channel plate arrangements (2) that are stacked in a stacking direction (3). A gas path (6) is formed between each pair of adjacent channel plate arrangements (2), through which a gas (7) can be conducted. The gas is used to supply the heat that is required to evaporate the liquid (4). Each channel plate arrangement (2) contains a liquid inlet (8), a steam outlet (9), and a channel (11) which connects the liquid inlet (8) and steam outlet (9) together and which forms a repeatedly deflecting evaporation path (12) for the liquid (4) to be evaporated. The channel (11) has, in an evaporation path (12) evaporation zone (14), a flowable cross-section (18) which increases in a direction of liquid (4) flow.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: May 29, 2018
    Assignee: EBERSP√ĄCHER EXHAUST TECHNOLOGY GMBH & CO. KG
    Inventor: Gerd Gaiser
  • Patent number: 9968102
    Abstract: A cooling jacket for use with an industrial mixer that includes a bowl sheet, including a first horizontal rail mounted lengthwise across the top portion of the rear section of the bowl sheet; a second horizontal rail mounted lengthwise across the top portion of the front section of the bowl sheet; a plurality of vertical rails mounted on the rear section of the bowl sheet in a staggered pattern; a plurality of vertical rails mounted on the front section of the bowl sheet in a staggered pattern; a plurality of horizontal rails mounted across the bottom edge of the bowl sheet, wherein each rail is mounted between and perpendicular to certain of the vertical rails on the rear and front sections of the bowl sheet; wherein the first and second horizontal rails, vertical rails, and horizontal rails define a first coolant channel on the rear section of the bowl sheet and a second coolant channel of the front surface of the bowl sheet; and a plurality of channel covers mounted to the various vertical rails for enclo
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: May 15, 2018
    Assignee: Shaffer Manufacturing Corporation
    Inventors: Michael W. Hall, Kirk Lang
  • Patent number: 9894904
    Abstract: A cooling jacket for use with an industrial mixer that includes a bowl sheet, including a first horizontal rail mounted lengthwise across the top portion of the rear section of the bowl sheet; a second horizontal rail mounted lengthwise across the top portion of the front section of the bowl sheet; a plurality of vertical rails mounted on the rear section of the bowl sheet in a staggered pattern; a plurality of vertical rails mounted on the front section of the bowl sheet in a staggered pattern; a plurality of horizontal rails mounted across the bottom edge of the bowl sheet, wherein each rail is mounted between and perpendicular to certain of the vertical rails on the rear and front sections of the bowl sheet; wherein the first and second horizontal rails, vertical rails, and horizontal rails define a first coolant channel on the rear section of the bowl sheet and a second coolant channel of the front surface of the bowl sheet; and a plurality of channel covers mounted to the various vertical rails for enclo
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 20, 2018
    Assignee: Shaffer Manufacturing Corporation
    Inventors: Michael W. Hall, Kirk Lang
  • Patent number: 9874402
    Abstract: A heat exchanger includes a plurality of fins spaced apart from each other such that gas flows therebetween, and a plurality of heat transfer tubes extending through the plurality of fins and joined to the plurality of fins by tube expansion. The heat transfer tubes are arranged in five or more columns along a flow direction of the gas and staggered in a row direction intersecting the flow direction of the gas. Each of the plurality of fins is flat and plate-shaped and continuously extends between the heat transfer tubes in the flow direction of the gas. The plurality of heat transfer tubes satisfy relationships of 1.055D?Da?1.068D and 1.56Da?L?2.58Da, where D is an unexpanded outside diameter of the heat transfer tubes, Da is an expanded outside diameter thereof, and L is a distance between centers of adjacent two heat transfer tubes.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: January 23, 2018
    Assignee: Mitsubishi Electric Corporation
    Inventors: Tomotaka Ishikawa, Sangmu Lee
  • Patent number: 9472488
    Abstract: A semiconductor device exhibits low pressure loss and is capable of cooling a plurality of power semiconductor chips evenly. This semiconductor device includes a semiconductor module and a cooler for cooling a power semiconductor element mounted in the semiconductor module. A cooling unit of the cooler has a first header part that has a first bottom surface disposed between a coolant inlet and an end portion of a first substrate on the coolant outlet side and inclined toward a bottom plane of cooling fins so that a coolant supplied from the coolant inlet flows toward the cooling fins; and a second header part that has a second bottom surface inclined from an end portion of the bottom plane of the cooling fins on the coolant outlet side so that the coolant discharged from the cooling fins flows to the coolant outlet.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: October 18, 2016
    Assignee: FUJI ELECTRIC CO., LTD.
    Inventor: Hiromichi Gohara
  • Patent number: 9381509
    Abstract: The present invention provides methods and designs of enclosed-channel reactor system for manufacturing catalysts or supports. Both of the configuration designs force the gaseous precursors and purge gas flow through the channel surface of reactor. The precursors will transform to thin film or particle catalysts or supports under adequate reaction temperature, working pressure and gas concentration. The reactor body is either sealed or enclosed for isolation from atmosphere. Another method using super ALD cycles is also proposed to grow alloy catalysts or supports with controllable concentration. The catalysts prepared by the method and system in the present invention are noble metals, such as platinum, palladium, rhodium, ruthenium, iridium and osmium, or transition metals such as iron, silver, cobalt, nickel and tin, while supports are silicon oxide, aluminum oxide, zirconium oxide, cerium oxide or magnesium oxide, or refractory metals, which can be chromium, molybdenum, tungsten or tantalum.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: July 5, 2016
    Assignee: NATIONAL APPLIED RESEARCH LABORATORIES
    Inventors: Chi-Chung Kei, Bo-Heng Liu, Chien-Pao Lin, Chien-Nan Hsiao, Yang-Chih Hsueh, Tsong-Pyng Perng
  • Patent number: 9372018
    Abstract: An evaporator heat exchanger is disclosed. The evaporator heat exchanger includes a bottom plate, a top plate, and at least one main plate between the bottom plate and the top plate. The at least one main plate includes a first face having one or more channels for flow of a first fluid along the first face and a second face opposite the first face having one or more channels for flow of a second fluid along the second face, wherein heat is exchanged between the first fluid and the second fluid through the main plate. Main plates adjacent to each other define an enclosed channel for fluid flow.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: June 21, 2016
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Michael R. Barone, Richard Rusich
  • Patent number: 9360478
    Abstract: A method of monitoring an immunoassay comprises determining the position of the flow edge of fluid across an immunoassay region. This allows, for example, early detection of possible errors in the test. For example the speed of the movement of the fluid flow edge may be determined from measurements of the position of the fluid flow edge at times throughout the test, and the determined speed may be compared with one or more thresholds to determine whether the test is proceeding correctly. A further method of monitoring an immunoassay comprising monitoring the variation with time of a reference zone of an immunoassay region. This can provide the user with early information as to whether the test is proceeding correctly. The above methods may also be used to provide methods to improve the run conditions of a test during its development. The method may be applied to a competitive assay.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: June 7, 2016
    Assignee: COZART BIOSCIENCE LIMITED
    Inventors: Timothy John Abbott, David Patrick Edward Brookes
  • Patent number: 9190344
    Abstract: A casing of a liquid-cooled-type cooling device has a peripheral wall including mutually facing right and left side walls. A cooling-liquid inlet is formed at one end of the right side wall, and a cooling-liquid outlet is formed at an end of the left side wall corresponding to the other end of the right side wall. A parallel-flow-channel section is provided within the casing to be located between the left and right side walls and between the cooling-liquid inlet and outlet and includes flow channels through which cooling liquid flows. Internal regions of the casing located upstream and downstream of the parallel-flow-channel section serve as inlet and outlet header sections, respectively. The cross-sectional area of the inlet header section reduces from the cooling-liquid inlet toward the left side wall. The outlet and inlet header sections are asymmetric in shape with respect to the width direction of the parallel-flow-channel section.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: November 17, 2015
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, SHOWA DENKO K.K.
    Inventors: Shogo Mori, Hideyasu Obara, Taizo Kuribayashi, Shinobu Tamura
  • Patent number: 8997841
    Abstract: A flat heat exchanger plate typically used in a bulk material heat exchanger having an improved construction which increases heat transfer and service period by reducing bulk material accumulation. The flat heat exchanger plate is designed to operate under a negative internal pressure to eliminate depressions or dimples that are typically formed into the sides of these types of heat exchanger coils during the manufacture process. The dimples are created to reinforce the heat exchanger plate from positive internal pressures that other wise would cause the heat exchanger plate to bow due to internal positive pressures. With the removal of the depressions or dimples the tendency for bulk material to accumulate to the exterior surface of the plate is reduced, thereby increasing the service period of the plate and heat transfer. The flat heat exchanger plate tapers from wide to narrow along the direction of flow of bulk material across the plate to further reduce accumulation of bulk material.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: April 7, 2015
    Inventor: Peter Dawson
  • Patent number: 8955507
    Abstract: A furnace or other heat exchanger application for heating, ventilation, air conditioning and refrigeration systems having condensate control. Specifically, a condensate control for secondary heat exchangers is provided for use with high efficiency furnaces, particularly for small tonnage systems, such as residential or unitary systems. Condensate management permits a plurality of furnace orientations while providing resistance to corrosion due to liquid condensate.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Johnson Controls Technology Company
    Inventors: Tabraiz Ali Khan, Robert Cabrera, Gregory Kenneth Reaser, Terry Hill
  • Patent number: 8807446
    Abstract: The present invention provides a heating device with cathode oxygen depletion (COD) function for a fuel cell vehicle, in which an existing COD and a heating device for improving cold startability of the fuel cell vehicle are integrated. For this purpose, the present invention provides a heating device with COD function for a fuel cell vehicle, the heating device including: a housing having an inlet and an outlet formed on both ends thereof; a start-up heater and a shut-down heater provided in parallel on one side of the housing in a direction perpendicular to a coolant flow direction; and a plurality of heaters for heating coolant provided in parallel on the other side of the housing in a direction perpendicular to the coolant flow direction, wherein cross sections in the coolant flow direction of each of the respective heaters change periodically along the longitudinal direction of the heater so as to cause a flow disturbance.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 19, 2014
    Assignee: Hyundai Motor Company
    Inventor: Su Dong Han
  • Patent number: 8757246
    Abstract: A heat sink includes a fluid channel and a cooling wall in contact with coolant flowing in the fluid channel. The channel is configured to vary the velocity of coolant along the length of the fluid channel to vary the coolant's heat transfer coefficient and thereby compensate for the coolant's temperature rise along the length of the fluid channel. The result is a heat sink that is isothermal along its length.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: June 24, 2014
    Assignee: Raytheon Company
    Inventors: Craig H. McCordic, Leo S. Ludwick
  • Patent number: 8622030
    Abstract: A spiral heat exchanger for producing heating and/or sanitary use hot water, specifically designed for condensation applications, characterized in that said spiral heat exchanger comprises a duct, preferably though not exclusively made of a thermally conductive material and having a contoured cross-section, called outer duct, inside which can be either arranged or not a second duct, preferably though not exclusive made of a thermally conductive material, called inner duct; the geometrical construction of said outer duct being defined as a resultant obtained by joining two different diameter circumferences, said circumferences being spaced from one another by a constant or variable radius junction pattern; the thus obtained single or double duct being coiled or spiral wound on a diameter substantially larger than the size of said duct thereby providing a hollow cylinder.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: January 7, 2014
    Assignee: Ferroli S.p.A.
    Inventor: Giandomenico Lovato
  • Patent number: 8534347
    Abstract: A connector system is provided. The system includes a substantially circular interconnecting hub, and a plurality of circuit board bays configured substantially radially around the substantially circular interconnecting hub. Each circuit board bay has a plurality of aligned connectors configured to receive a circuit board. The interconnecting circuit hub has, for each individual circuit board bay, a direct data pathway connecting the individual circuit board bay to all remaining circuit board bays of the plurality of circuit board bays. Each of the plurality of circuit board bays can directly communicate through the interconnecting hub with each of the remaining circuit boards bays.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: September 17, 2013
    Assignee: General Dynamics Advanced Information Systems, Inc.
    Inventors: Ronald R. Denny, Bobby Jim Kowalski, James T. Seward, Michael P. Ebsen, Thomas Rosenthal, William J. Leinberger, Jeffery Stagg Young, Andrew D. Josephson
  • Patent number: 8518212
    Abstract: Embodiments of the invention provide an apparatus or process for devolatilization of flowable materials (such as molten polymers with entrained or dissolved solvent or unreacted monomers or comonomers) using a plate heater having heating channels, the design or operation of which heating channels maintains the flowable material above its bubble point pressure during passage through a larger first zone and then induces flashing in, or downstream of, a smaller second zone of the heating channel. The apparatus enables a higher throughput per heating channel while achieving equivalent or better devolatilization, as compared to current devolatilization apparatus.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: August 27, 2013
    Assignee: Dow Globarl Technologies LLC
    Inventors: Craig S. Taylor, Ravindra S. Dixit, Robert P. Shirtum
  • Publication number: 20130195138
    Abstract: A heat exchanger rapid cooling flue gas of ironwork plants, including: a support structure of at least one module including an inlet manifold and an outlet manifold of the flue gas, mutually opposed and aligned; plural panels that extend between the inlet manifold and the outlet manifold mutually superimposed at a defined distance, pairs of adjacent panels defining flow channels of the flue gas closed laterally by shoulders and including at opposite ends respectively an inlet aperture communicating with the inlet manifold and an outlet aperture communicating with the outlet manifold; circulation ducts of a cooling fluid associated with the panels; and a first selective closing mechanism of the inlet apertures and a second selective closing mechanism of the outlet apertures of one or more of the channels; each of the channels laterally closed by a respective pair of shoulders of which at least one is of removable type.
    Type: Application
    Filed: September 21, 2011
    Publication date: August 1, 2013
    Applicant: TENOVA S.P.A.
    Inventor: Nicola Ambrogio Maria Monti
  • Publication number: 20130145732
    Abstract: Disclosed in a filter for filtering a working fluid comprising a canister having an inlet and an outlet; a first partially perforated generally conical member positioned in said canister; a second generally conical member positioned inside said first partially perforated generally conical member, whereby the working fluid upon entering the inlet is caused to spin inside the canister, to pass through the perforated portion of the first generally conical member, to enter an inlet to the second generally conical member, to spin within the second conical member and to pass through the outlet.
    Type: Application
    Filed: May 20, 2011
    Publication date: June 13, 2013
    Inventors: John Edward Charles Gwynn, John McCallum, David Mitchell, Michael Hogg, Maciej Adrian Zyga
  • Patent number: 8438864
    Abstract: A method for increasing efficiency of a transcritical heat pump water heater system is provided, as well as the corresponding system. The refrigerant, such as CO2, is compressed to a supercritical point and passed through a gas cooler that is wrapped at least partially around a water storage tank, wherein the refrigerant transfers heat to water stored in the tank. The hot water is discharged from the storage tank proximate to a top of the tank, and cold water is introduced into the tank proximate to a bottom of the tank. The supercritical refrigerant is directed to flow through the gas cooler from a top point to a lowermost point in a flow direction such that the refrigerant exits the gas cooler proximate to the bottom of the tank at a location of the coldest water within the storage tank.
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: May 14, 2013
    Assignee: General Electric Company
    Inventors: John Joseph Roetker, Jonathan Charles Crosby
  • Patent number: 8393318
    Abstract: A furnace or other heat exchanger application for heating, ventilation, air conditioning and refrigeration systems having condensate control. Specifically, the disclosure includes condensate control for secondary heat exchangers for use with high efficiency furnaces, particularly for small tonnage systems, such as residential or unitary systems. The application provides condensate management to permit a plurality of furnace orientations while providing resistance to corrosion due to liquid condensate, while providing a furnace system that utilizes less expensive materials and is easily fabricated.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: March 12, 2013
    Assignee: Johnson Controls Technology Company
    Inventors: Tabraiz Ali Khan, Robert Cabrera, Gregory Kenneth Reaser, Terry Hill
  • Patent number: 8302673
    Abstract: In a parallel flow heat exchanger having an inlet manifold connected to an outlet manifold by a plurality of parallel channels, a spirally shaped insert is disposed within the refrigerant flow path in the inlet manifold such that a swirling motion is imparted to the refrigerant flow in the manifold so as to cause a more uniform distribution of refrigerant to the individual channels. Various embodiments of the spirally shaped inserts are provided, including inserts designed for the internal flow of refrigerant therethrough and/or the external flow of refrigerant thereover.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: November 6, 2012
    Assignee: Carrier Corporation
    Inventors: Michael F. Taras, Allen C. Kirkwood, Robert A. Chopko
  • Patent number: 8240367
    Abstract: 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: Grant
    Filed: June 28, 2007
    Date of Patent: August 14, 2012
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Amar S. Wanni, Thomas M. Rudy, Douglas F. Slingerland, Chih Pong Sin
  • Patent number: 8230903
    Abstract: A heat sink for cooling a heat-generating device includes a base and a cooling section coupled thereto for cooling the device. The cooling section includes a plurality of flow tubes, each flow tube having an inlet, an outlet, and a bounding wall that defines a closed fluid flow path from the inlet to the outlet. Each of the flow tubes includes a central axis that is substantially parallel to a reference plane of the heat-generating device. The flow tubes may be arranged in a layered stack and include a bounding wall that has a thickness that decreases with increasing distance in the layered stack. The flow tubes may also include a cross-sectional area that decreases with increasing distance in the layered stack. Furthermore, the bounding wall of the flow tubes may have a non-planar configuration in a direction generally parallel to the central axis.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: July 31, 2012
    Assignee: International Business Machines Corporation
    Inventors: Stephen P. Ayotte, David J. Hill, Kristen L. Holverson, Christina M. Pepi, Timothy M. Sullivan
  • Patent number: 8081465
    Abstract: A cooling apparatus for semiconductor chips includes radiation fins formed on the opposite surface of metal base opposite to the surface of metal base, to which an insulator base board mounting semiconductor chips thereon, is disposed. The radiation fins, such as sheet-shaped fins having different lengths are arranged such that the surface area density of the fins becomes higher in the coolant flow direction, whereby the surface area density is the total surface area of radiation fins on a unit surface area of the metal base. As a result, the temperatures of semiconductor chips arranged along the coolant flow direction are closer to each other.
    Type: Grant
    Filed: November 27, 2009
    Date of Patent: December 20, 2011
    Assignee: Fuji Electric Systems Co., Ltd.
    Inventor: Akira Nishiura
  • Publication number: 20110226445
    Abstract: A heat exchanger useful for mounting to an electronic component housing or other system requiring heat exchange. The heat exchanger has a manifold having a cross-sectional configured for providing an unequal coolant flow to an array of cooling channels fed by the manifold, thereby providing for preferential amounts of heat exchange over a given heat exchange surface of the heat exchanger. A safety channel may surround the channels carrying the coolant to prevent potential leakage outside of the heat exchanger.
    Type: Application
    Filed: March 22, 2010
    Publication date: September 22, 2011
    Inventor: Joseph H. Brand
  • Patent number: 7980295
    Abstract: An evaporator includes a hermetically sealed vessel 1A having an inlet 17 and an outlet 16, a refrigerant supply portion 14, in which liquid refrigerant is stored, a heat transfer portion 12, to which the liquid refrigerant stored in the refrigerant supply portion 14 is supplied, heat transfer fins 12A having a heat transfer surface provided in the heat transfer portion 12, a wick 13A provided on the heat transfer surface of the heat transfer fins 12A to transfer the liquid refrigerant supplied to the heat transfer portion 12 towards the outlet 16 by means of capillarity, and a heat radiation fins 15, which is provided on the outer surface of the refrigerant supply portion 14 to prevent the temperature of the refrigerant introduced into the refrigerant supply portion from rising.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: July 19, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomonao Takamatsu, Katsumi Hisano, Hideo Iwasaki
  • Patent number: 7940527
    Abstract: Cooling systems (1) suitable for cooling an electronic unit (2) or assembly. The cooling system is provided with a cooling channel (6). An electronic unit (2) rests over a heat-conducting cooler wall (7). A coolant guide apparatus (11) is provided in the cooling channel (6) and has insert conduit elements (13) for guiding the coolant onto the cooler wall indentations (12). The end of each insert conduit (13) opening to the cooling channel (6) may be provided with an inclined entry surface (19) and an inlet opening (20) towards the inner longitudinal channel (14). A plurality of such coolant guides (11) may be arranged in series so that, for example, the same cooling medium flows through a plurality of semiconductor modules in succession.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: May 10, 2011
    Assignee: BRUSA Elektronik AG
    Inventor: Axel Krause
  • Publication number: 20100108042
    Abstract: The present invention relates to a heat exchanger including a partitioning plate and flow channels of at least two systems which are partitioned by the partitioning plate, in which the partitioning plate is made of a clad sheet having a base material made of stainless steel or a nickel-based alloy, and a clad layer having brazing properties and corrosion resistance to a corrosive fluid, an entire surface of the base material which is exposed to the flow channel of at least one system being coated by the clad layer. According to the present invention, the heat exchanger, in which the corrosive fluid flows, can be reduced in size, and the performance thereof can be enhanced. Furthermore, it is possible to simplify the manufacturing process of the heat exchanger.
    Type: Application
    Filed: April 2, 2008
    Publication date: May 6, 2010
    Inventors: Ryo Akiyoshi, Chitoshi Mochizuki, Takashi Yoshida
  • Publication number: 20100000721
    Abstract: A heat-dissipating pipe module includes a first pipe unit including a first pipe member disposed at an elongate pipe-mounting portion of a cabinet for housing electronic equipment. A first connecting member engages threadably an end of the first pipe member. At least one side opening is in fluid communication with the first pipe member and is directed toward the electronic equipment. A second pipe unit includes a second pipe member disposed at the elongate pipe-mounting portion, a second connecting member, and at least one side opening. A major portion of the second pipe member has an inner diameter smaller than that of a major portion of the first pipe member. The second connecting member engages threadably the first connecting member and the second pipe member.
    Type: Application
    Filed: June 26, 2009
    Publication date: January 7, 2010
    Inventor: Ming-Chang Lai
  • Patent number: 7614442
    Abstract: A heat exchanger comprising two tanks, and a plurality of tubes for a medium which is to be cooled/heated are arranged in stacked, transverse rows, with the tubes arrayed to extend from the entrance to the exit side of the heat exchanger. The tubes are disposed between and transmit the medium between the tanks. Ducts between the stacked rows of the tubes for flow of a different cooling/heating medium. The ducts are arranged to run transversely to the longitudinal direction of the tubes. The opposing connection surfaces of the tanks converge in the direction of flow of the cooling/heating medium through the heat exchanger. The ducts closer to the connection surfaces are angled convergingly like the connection surfaces. Such a heat exchanger may be used, e.g. as a cooler, and in a motor vehicle.
    Type: Grant
    Filed: June 28, 2005
    Date of Patent: November 10, 2009
    Assignee: Scania CV AB (publ)
    Inventor: Morgan Colling
  • Patent number: 7462262
    Abstract: A vertical multitubular heat exchanger that can prevent clogging of a polymerized material and is continuously operable for an extended period of time is provided. The vertical multitubular heat exchanger (1) of the present invention introduces a process fluid containing an easily-polymerizable substance into heat exchanger tubes (28) to perform heat exchange. The vertical multitubular heat exchanger (1) includes a shell (2) extending in a vertical direction, an upper tube sheet (8) and a lower tube sheet (10) respectively disposed at the upper portion (4) and the lower portion (6) of the shell (2), and a plurality of heat exchanger tubes (28) whose outer circumferences (26) of both ends are respectively fixed to the upper tube sheet (8) and the lower tube sheet (10). An upper surface (34) of the upper tube sheet (8) is formed to be sloped and at least one of the heat exchanger tubes (28) is disposed in the vicinity of the lowest position of the upper surface (34) of the upper tube sheet (8).
    Type: Grant
    Filed: August 17, 2004
    Date of Patent: December 9, 2008
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Tomomichi Hino, Akira Ogawa, Shigetoshi Shimauchi, Toshihiro Sato, Yasuhiro Kabu
  • Patent number: 7441591
    Abstract: Provided is a heatsink, including a cooling zone to contact an object to be frozen and having microchannels formed therein to define a plurality of fluid pathways, an inlet through which a working fluid enters, a distributor, interposed between the inlet and the cooling zone, to uniformly distribute the working fluid introduced through the inlet to the microchannels, an outlet through which the working fluid, passing through the cooling zone, exits, and a collector, interposed between the cooling zone and the outlet, to collect the working fluid passing through the microchannels.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: October 28, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-sung Park, Sun-soo Kim
  • Patent number: 7293423
    Abstract: An apparatus and method of controlling freezing in a liquid system is disclosed. The apparatus includes a heat exchanger having a initial zone characterized by a surface area to volume ratio. The apparatus also includes means for initiating freezing of a fluid from the initial zone to facilitate volume expansion during freezing in the direction of a final zone characterized by a final zone surface area to volume ratio. The apparatus can further include a plurality of zones located between the initial zone and the final zone, wherein a zone surface area to volume ratio is calculated for each zone. Preferably, the zone surface area to volume ratio of each zone progressively decreases from the initial zone in the direction of the final zone. Preferably, the final freezing zone has the lowest surface area to volume ratio and has sufficient elasticity to accommodate the volume expansion of all the fluid that has frozen from the initial zone.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: November 13, 2007
    Assignee: Cooligy Inc.
    Inventors: Girish Upadhya, Richard Grant Brewer, Mark McMaster
  • Patent number: 7111673
    Abstract: A heat exchanger is used between the stripper section and rectifier section. The heat exchanger (10) has channels closed on all sides with an end inlet and end outlet for the related section. A compressor is fitted between the sections. According to the invention the heat exchanger is a so-called compact heat exchanger, that is to say a heat exchanger made up of a series of adjacent plates (15, 16) between which channels (11, 12) closed on all sides for the related section are delimited. These channels (11, 12) extend essentially vertically and are so constructed that all liquid contained therein is able to move towards the bottom of the section concerned. The flow cross-section of the channels of the stripper/rectifier section changes depending on the process carried out therein.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: September 26, 2006
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventor: James Anthony Hugill
  • Patent number: 7044123
    Abstract: The present invention relates to a heat exchanger and condensation combustion chamber assembly, comprising a plurality of tubes and including a front plate and a rear plate connected to the combustion chamber with a drop pattern. Each of the heat exchanger tubes comprises a variable area cross section, with a flat portion at a middle region, to provide a larger thermal exchange surface. The middle region is subjected to a crossed cut molding process to provide a helical type of fume path, suitable to enhance the efficiency of the assembly, owing to an increased thermal exchange between the fumes and heated air flows. The combustion chamber having a cross section of drop shape allows to properly solve the problem related to the very high temperatures generated by recent cylindrical gas burners having a metal mesh surface generating great amounts of heat, which must be disposed of in a thermal exchange process with the heated air flow.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: May 16, 2006
    Inventor: Angelo Rigamonti
  • Patent number: 6948559
    Abstract: An evaporative heat exchanger (10) is provided for the transfer of heat to a first fluid (30) from a second fluid (28) and a third fluid (22) to vaporize the first fluid (30). The heat exchanger (10) includes a core (40), a first flow path (60) in the core for the first fluid (30), a second flow path (66) in the core (40) for the second fluid (28), and a third flow path (68) in the core (40) for the third fluid (22). The core (40) includes a first section (42), a second section (44), and a third section (46), with the second section (44) connecting the first and third sections (42, 46). The first flow path (60) extends through all of the sections (42, 44, 46), the second flow path (66) extends through the first section (42), and the third flow path (68) extends through the third section (46).
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: September 27, 2005
    Assignee: Modine Manufacturing Company
    Inventors: Michael J. Reinke, Jeroen Valensa, Mark G. Voss
  • Publication number: 20040251001
    Abstract: A catalytic reactor (10) comprises a plurality of sheets (12, 13) defining flow channels (14, 18) between them. Within each flow channel (14, 18) is a foil (16, 20) of corrugated material whose surfaces are coated with catalytic material. The flow channels (14, 18) extend in transverse directions, but the foils (20) are shaped to cause the gas in those channels (18) to flow at least partly in countercurrent to the gas flowing in the other channels (14). The reactor (20) incorporates header chambers (22, 24) to supply gas mixtures to the flow channels (14, 18), each header being in the form of a cap attached to the outside of the back and covering a face of the stack. Hence different gas mixtures are supplied to the different channels (14, 18) which may be at different pressures, and the corresponding chemical reactions are also different, and heat is transferred through the sheets (12, 13) separating the adjacent channels.
    Type: Application
    Filed: April 6, 2004
    Publication date: December 16, 2004
    Inventor: Jason Andrew Maude
  • Patent number: 6793013
    Abstract: A vertical polygonal heat exchange chamber includes an upper opening, a lower opening, and an enclosure formed between the upper and lower openings. The enclosure includes at least one tapered portion that narrows in a direction toward one of the openings. The tapered portion is lined with N first water tube panels arranged adjacent to and alternately with N second water tube panels, where N is an integer greater than two. Each of the first and second water tube panels is angled inwardly from the widest part of the tapered portion toward the interior of the enclosure, with each of the first water tube panels being angled inwardly to a greater degree than each of the second water tube panels.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: September 21, 2004
    Assignee: Foster Wheeler Energy Corporation
    Inventor: Ponnusami K. Gounder
  • Publication number: 20040134644
    Abstract: A vertical polygonal heat exchange chamber includes an upper opening, a lower opening, and an enclosure formed between the upper and lower openings. The enclosure includes at least one tapered portion that narrows in a direction toward one of the openings. The tapered portion is lined with N first water tube panels arranged adjacent to and alternately with N second water tube panels, where N is an integer greater than two. Each of the first and second water tube panels is angled inwardly from the widest part of the tapered portion toward the interior of the enclosure, with each of the first water tube panels being angled inwardly to a greater degree than each of the second water tube panels.
    Type: Application
    Filed: January 9, 2003
    Publication date: July 15, 2004
    Applicant: Foster Wheeler energy Corporation
    Inventor: Ponnusami K. Gounder