With Means Spacing Fins On Structure Patents (Class 165/182)
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Patent number: 8253076Abstract: A heater unit for a respiratory system is designed for natural convection cooling air to pass first through a transformer in the heater unit and then through a heat sink in the heater unit to which is mounted a power switch to conduct heat from the power switch to the cooling air passing through the heat sink. A thermal break may be provided between the heat sink and the transformer. The transformer may be a toroidal transformer with the air passing through an aperture thereof such as from a hollow projection of the heater unit extending into the aperture. One side of the transformer may be situated along a surface of the heater unit and the heat sink secured to the heater unit against the opposite side of the transformer to hold the transformer in place. A venting chamber may be associated with an air exhaust of the heater unit to provide a circuitous exit path for air exiting the heater unit. The venting chamber may extend in generally surrounding relationship with the heater of the heater unit.Type: GrantFiled: October 29, 2007Date of Patent: August 28, 2012Assignee: Smiths Medical ASD, Inc.Inventors: David F. Andel, Keith J. Bradley
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Patent number: 8225846Abstract: A radiating fin assembly includes a plurality of alternately stacked first radiating fins and second radiating fins, such that a V-shaped recession is formed between any two adjacent first and second radiating fins. The V-shaped recessions are defined on at least one of two longitudinal sides of the radiating fin assembly and include a plurality of split spaces, first widened spaces, and second widened spaces. The split spaces are formed at a bottom portion of the V-shaped recessions, and the first and the second widened spaces are formed at two opposite ends of the split spaces. The radiating fin assembly can be associated with at least one heat pipe and a base to form a thermal module. With the V-shaped recessions, the radiating fin assembly and the thermal module can have widened airflow inlets, shortened airflow paths, reduced airflow pressure drop and flowing resistance, and accordingly upgraded heat dissipating efficiency.Type: GrantFiled: January 14, 2009Date of Patent: July 24, 2012Assignee: Asia Vital Components Co., Ltd.Inventor: Sheng-Huang Lin
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Patent number: 8191617Abstract: A method of assembling a syngas cooler is provided. The method includes coupling at least one cooling tube within the syngas cooler, wherein the at least one cooling tube includes an inner surface that defines a flow passage therethrough, an opposite outer surface, and at least one cooling fin extending outward from the outer surface, and orienting the at least one cooling tube such that the at least one cooling fin is in flow communication within a syngas flow passage defined in the syngas cooler, wherein the cooling fin facilitates enhancing heat transfer between fluid flowing in the at least one cooling tube and a syngas flow.Type: GrantFiled: August 7, 2007Date of Patent: June 5, 2012Assignee: General Electric CompanyInventor: Judeth Helen Brannon Corry
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Patent number: 8162041Abstract: A heat exchanger including plate fins stacked at respective intervals relative to one another, and heat exchanger tubes penetrating the fins in. The heat exchanger exchanges heat between first and second fluids flowing, respectively, inside and outside the heat exchanger tubes. Each of the fins includes a substantially planar main body and cut-raised portions extending from the main body and disposed at an upstream side of flow of the second fluid. Each of the cut-raised portions corresponds to a respective heat exchanger tube and includes first and second opposed side ends connected to the main body of the fin. The first side end is nearer to the corresponding heat exchanger tube than is the second side end, the first side end is longer than the second side end, and the first side end is disposed at a downstream side of the flow of the second fluid, facing the corresponding heat exchanger tube.Type: GrantFiled: July 15, 2009Date of Patent: April 24, 2012Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Kunihiko Kaga, Shinji Nakadeguchi, Akira Ishibashi, Shinichi Wakamoto, Toshinori Ohte, Hiroki Murakami, Tadashi Saito
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Publication number: 20120080173Abstract: A heat exchanger assembly having first and second heat exchangers having a tube-fin construction. The first heat exchanger is configured to cool a first fluid. The second heat exchanger has a first portion for cooling the first fluid and a second portion for cooling a second fluid. Cooling air passes through the first heat exchanger before passing through the second heat exchanger.Type: ApplicationFiled: October 4, 2010Publication date: April 5, 2012Applicant: FORD GLOBAL TECHNOLOGIES, LLCInventors: Manfred Koberstein, Noori Pandit, Mitali Chakrabarti, James Matthew Chisholm, Michael Steven Wallis, Kevin Williamson
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Patent number: 8136578Abstract: A heat exchanger for a first and a second medium flow includes flat tubes which have internal fins formed from zigzag-shaped sheet metal plate. The tubes have a thermally conductive connection to at least one duct for the one medium flow. Each fin is fixed only to the one longitudinal side of each tube. Furthermore, there is a gap between the fins fixed to the one longitudinal side and the opposite longitudinal side of the tube.Type: GrantFiled: March 13, 2006Date of Patent: March 20, 2012Assignee: Volvo Lastvagnar ABInventor: Hans-Gunnar Qvist
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Publication number: 20120021306Abstract: A heat exchanger for a fuel cell includes first and second heat exchanger portions that provide a fluid flow passage. The second heat exchanger portion is arranged downstream from the first heat exchanger portion. The first and second heat exchanger portions include a coolant flow passage, which is provided by tubes in one example. The first and second heat exchanger portions are configured to transfer heat between the fluid flow and coolant flow passages. The first heat exchanger portion is configured to provide a first heat transfer rate capacity. The second heat exchanger portion includes a second heat transfer rate capacity that is greater than the first heat transfer rate capacity. In one example, the first heat exchanger portion includes tubes and does not include any fins, and the second heat exchanger includes spaced apart fins supporting the tubes.Type: ApplicationFiled: April 8, 2009Publication date: January 26, 2012Applicant: UTC POWER CORPORATIONInventors: Joshua D. Isom, Kazuo Saito, John W. Kowalski, Bryan F. Dufner, Sitaram Ramaswamy, Ricardo O. Brown
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Publication number: 20120012293Abstract: A liquid-loop compound recuperator is disclosed for high-? heat exchange between a first shell-side fluid stream and a second shell-side fluid stream of similar thermal capacity rates (W/K). The compound recuperator is comprised of at least two fluid-to-liquid (FL) recuperator modules for transfer of heat from a shell-side fluid, usually a gas, to an intermediary tube-side heat transfer liquid (HTL). Each FL module includes a plurality of thermally isolated, serially connected, adjacent exchanger cores inside a pressure vessel. The cores are rows of finned tubes for cross-flow transfer of heat, and they are arranged in series to effectively achieve counterflow exchange between the HTL and the shell-side stream. The HTL may be water, an organic liquid, a molten alloy, or a molten salt. Alumina-dispersion-strengthened-metal fins, superalloy tubes, and a lead-bismuth-tin alloy HTL may be used for high temperatures. Cumene may be used as the HTL in cryogenic applications.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Applicant: DOTY SCIENTIFIC, INC.Inventor: F. David Doty
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Publication number: 20110303402Abstract: Provided is a heater core which has a simple structure using a pipe connector formed by coupling a first plate and a second plate, thereby facilely manufacturing it, and also which can have a smaller size, since an inlet pipe and an outlet pipe are disposed to be adjacent to each other.Type: ApplicationFiled: June 14, 2011Publication date: December 15, 2011Applicants: VISTEON GLOBAL TECHNOLOGIES, INC., HALLA CLIMATE CONTROL CORP.Inventors: Jung Sam GU, Yong Jun Jee, Kwang Hun Oh, Michael R. Farris, Richard Kenneth Harris, Evangelos S. Papoulis
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Publication number: 20110290467Abstract: A heat sink includes a base member having stepped channels spaced on the surface thereof in a parallel manner and first and second ribs protruding from the surface and respectively extending along two opposite lateral sides of each of the stepped channels, and radiation fins respectively mounted in the channels of the metal base member and supported on the second ribs vertically, each radiation fin having a Z-shaped foot portion that is inserted into one respective stepped channel of the base member and secured thereto by the associated first and second rib that are stamped to clamp on the Z-shaped foot portion of the associated radiation fin after its insertion into the respective stepped channel.Type: ApplicationFiled: May 27, 2010Publication date: December 1, 2011Inventor: Tsung-Hsien Huang
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Patent number: 8028747Abstract: A tube spacer S formed by bending a wire, includes a plurality of projections 20 and a base-bending portion 21. Each of the projections 20 is inserted between tubes, and has a pair of extending portions 201 extend in X direction and a front-bending portion 202 for connecting both front ends of the pair of extending portions 201. The base-bending portion 21 connects both rear ends of the projections 20 so that the projections 20 are arranged at interval in Z direction. With this structure, manufacturing cost for the tube spacer S can be low, and the tubes can be stably supported.Type: GrantFiled: November 29, 2007Date of Patent: October 4, 2011Assignee: Noritz CorporationInventors: Hidenori Hata, Kozo Uehara, Kazuhiro Kimura, Noriyuki Kuribayashi, Koji Shimomura
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Patent number: 8020298Abstract: A method of fabricating a heat exchanger which includes: obtaining multiple coolant-carrying conduit sections, each having a non-circular cross-section, and first and second main surfaces; providing multiple primary folded fins secured to the conduit sections. Each folded fin includes a solid fin surface with multiple bends defining alternating, U-shaped air-passage channels, and a base surface and a top surface. Each folded fin is secured at the base or top surface to a main surface of a conduit section, and the folded fins have leading and trailing edges relative to airflow direction. The method includes forming a plurality of sets of secondary fins, each set extending from the leading or trailing edge of a respective folded fin at an angle other than 0. At least one conduit section has a first folded fin secured to its first main surface, and a second folded fin secured to its second main surface thereof.Type: GrantFiled: October 7, 2008Date of Patent: September 20, 2011Assignee: International Business Machines CorporationInventors: Levi A. Campbell, Richard C. Chu, Michael J. Ellsworth, Jr., Madhusudan K. Iyengar, Roger R. Schmidt, Robert E. Simons
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Patent number: 7992624Abstract: A heat sink module includes a heat transfer tube, a plurality of radiation fins respectively riveted to locating grooves around the periphery of the heat transfer tube, and a heat transfer panel fastened to the bottom side of the heat transfer tube and the radiation fin set and kept in contact with a heat source, such as a CPU or a light emitting unit of a LED lamp for transferring heat from the heat source to the radiation fins for quick dissipation.Type: GrantFiled: November 27, 2008Date of Patent: August 9, 2011Inventor: Tsung-Hsien Huang
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Publication number: 20110185712Abstract: An energy separation and recovery system wherein energy forms which might otherwise be wasted are employed in conjunction with a heat exchanger and a super heater to generate steam in a substantially closed-loop system wherein the heat supply is an open system. The superheated steam is transmitted to an engine to generate power which may be used to supply electrical energy. The electrical energy may be employed external to the system. Stepped diameter tubing carries water, or other vaporizable fluids, through the heat exchanger into the super heater while simultaneously exposing the carried water or fluid to incrementally higher temperature heated gas. Variable bellows, attached operatively to end plates accommodate the differential expansion of the tubing. The energy generation system includes a control module to permit the generation of steam and electricity at such times as there is sufficient heat to permit the generation of superheated steam.Type: ApplicationFiled: February 4, 2010Publication date: August 4, 2011Inventors: Michael Alan Burns, Paul Andrew Burns, Gareth Andrew Storoszko, Marco Cucinotta
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Publication number: 20110143292Abstract: A burner and an improved heat recuperator for a burner. The heat recuperator has a tubular body including a plurality of fins extending radially outward from the tubular body. The plurality of fins are disposed in a plurality of segments arranged longitudinally along the tubular body with the plurality of fins in each segment being disposed about a circumference of the tubular body. Adjacent segments of fins being circumferentially offset with one another.Type: ApplicationFiled: December 16, 2010Publication date: June 16, 2011Applicant: Eclipse, Inc.Inventor: David Collier
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Publication number: 20110132020Abstract: Provided are a heat exchanger capable of providing sufficient heat exchange capability even with heat transfer tubes having a reduced outer diameter, and a heat pump device using the same. The heat transfer tubes has an outer diameter D in a range of 5 mm?D?6 mm, has a thickness t in a range of 0.05×D?t?0.09×D, are disposed at a vertical pitch L1 in a range of 3×D?L1?4.2×D, and are disposed at a longitudinal pitch L2 in a range of 2.6×D?L2?3.64×D. A sufficiently increased heat exchange rate per unit weight is obtainable with the heat exchanger.Type: ApplicationFiled: August 5, 2009Publication date: June 9, 2011Applicant: SANDEN CORPORATIONInventors: Isao Katou, Naotaka Iwasawa, Hirotaka Kado
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Publication number: 20110127022Abstract: A heat exchanger for exchanging heat between a first fluid and a second fluid is disclosed; wherein the heat exchanger has improved thermal efficiency and low fluid back pressure. The heat exchanger comprises conduits for conveying the first fluid, wherein the conduits include a plurality of flow passages. The flow passages are defined by a plurality of fins that are continuous along the direction of flow of the first fluid. Each fin includes a wave-shaped region, and adjacent fins sub-divide each flow passage into first and second sections that are interposed by a third section. The wave-shape of the fins creates a continuously varying cross-sectional area for each third section. The variation of the cross-sectional area of the third section, coupled with the wave-shape of the fins, induces a swirl flow between the third section and each of the first and second sections. This swirl flow improves the efficiency of the overall convection heat transfer in each conduit.Type: ApplicationFiled: December 1, 2009Publication date: June 2, 2011Applicant: LOCKHEED MARTIN CORPORATIONInventors: Michael R. Eller, Randy J. Brown, Riki P. Takeshita
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Publication number: 20110120688Abstract: A baseboard radiator element is formed of an aluminum tube and fins or vanes of aluminum sheet. An elongated strip of sheet aluminum is bent into a fin assembly of generally rectangular fins alternating with spacer members, with the fins having central apertures. The fin assembly is placed into a fixture and the tube is forced through the aligned apertures to create strong mechanical and thermal contact between tube and fins. The fin structure can be used with center tubes of other materials. A brass or steel connector insert is fitted into the end of the aluminum tube, and the end of the tube is deformed inward using a collet or jaw device to create a hermetic seal with the tube. The process can also be used for joining aluminum tubing to tubing of aluminum or other materials.Type: ApplicationFiled: November 23, 2009Publication date: May 26, 2011Inventor: Hassan B. Kadah
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Publication number: 20110100610Abstract: A heat dissipating device includes a base, a heat pipe disposed on the base, and a plurality of first and second heat dissipating fins. Each first heat dissipating fin includes a fin body having a first through hole for extension of the heat pipe therethrough. The first and second heat dissipating fins are mounted on the heat pipe in a stack and in a spaced-apart alternating arrangement. Each second heat dissipating fin includes a fin body having a second through hole for extension of the heat pipe therethrough, two adjacent lateral edges, and a cut edge interconnecting the lateral edges such that each second heat dissipating fin has a smaller area than each first heat dissipating fin. Thus, the flow field resistance of the heat dissipating device can be reduced to increase the amount of airflow through the heat dissipating device for enhancing the heat dissipating efficiency.Type: ApplicationFiled: February 17, 2010Publication date: May 5, 2011Inventors: Yen-Yu Chao, Ming-Chang Wu, Ming-Wei Tien
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Patent number: 7927463Abstract: The present invention provides a novel tritium distillation device, which includes a container, a radiator covered on top of the container with a protrusion at the bottom, a conduit penetrating the container with an inlet and an outlet, the inlet being arranged in correspondence with the protrusion, and a heating device fixed below the container. The method of operating the tritiated water distillation includes the steps of adding environmental tritiated water in the container, covering the radiator on top of the container closely, heating environmental tritiated water to cause tritiated water steam to be condensed to the bottom of the radiator, and collecting the tritiated water condensation dropped from the protrusion with conduit. The present invention uses a simple structure to ease assembly and reduce the cost of cooling water source.Type: GrantFiled: August 31, 2007Date of Patent: April 19, 2011Assignee: Institute of Nuclear Energy ResearchInventor: Hsin-Fa Fang
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Publication number: 20110083619Abstract: A heat exchange assembly for generating steam from a second medium to be used to drive a steam turbine for generating electricity or for other process, includes a tube having a longitudinal axis and an inner wall and an outer wall. The outer wall includes a plurality of spaced fins oriented generally perpendicular to the longitudinal axis. The inner wall defines a preheat zone and a dual phase zone. The preheat zone defines a helical rib configured to provide swirling motion and increase heat transfer surface area to liquid entering the tube increasing heat transfer from the tube to the liquid. The dual phase zone is spaced from the preheat zone and defines a helical rib configured to provide swirling motion to steam and liquid passing through the dual phase zone increasing heat transfer from the tube to the steam and liquid while preventing vapor stagnation and film boiling.Type: ApplicationFiled: October 8, 2009Publication date: April 14, 2011Inventors: Bashir I. Master, Bhushan Ranade
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Publication number: 20110067849Abstract: A fin tube type heat exchanger includes heat transfer fins spaced apart from each other along plate thickness directions and heat transfer tubes inserted into the heat transfer fins in directions substantially orthogonal to a gas current flow direction. Each heat transfer fin includes cut and raised parts lined up from upstream to downstream on both sides of each heat transfer tube. The cut and raised parts are inclined with respect to the gas current flow direction to guide gas current to a rear side of the heat transfer tubes. A height of each of the cut and raised parts increases gradually toward the downstream side. A value calculated by dividing an average height of each cut and raised part by a fin pitch is greater than 0.3 and less than 0.6. The fin pitch is a spacing between the heat transfer fins.Type: ApplicationFiled: May 25, 2009Publication date: March 24, 2011Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hirokazu Fujino, Toshimitsu Kamada, Haruo Nakata
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Publication number: 20110048688Abstract: A heat exchanger assembly including first and second manifolds for transferring heat between a coolant and a flow of air. Tubes extend between the manifolds for conveying the coolant therebetween. Air fins are disposed between adjacent tubes, and each air fin has a cross-section presenting a legs extending between the adjacent tubes at equal and opposing angles to one another and bases interconnecting alternate ends of the adjacent legs to present a serpentine pattern. Each base extends through an arc between the ends of the adjacent legs and defines a lead-in radius interconnecting each base with one of the legs and an exit radius interconnecting each base with the end of the adjacent leg. The equal and opposing angles are in the range of 1 to 4 degrees. The lead-in and exit radii are in the range of 0.05 to 0.15 mm. The middle radius is in the range of 0.5 to 1.5 mm.Type: ApplicationFiled: September 2, 2009Publication date: March 3, 2011Applicant: DELPHI TECHNOLOGIES, INC.Inventors: Frank J. Leitch, Brian J. Coyle, Aaron D. McDonald, Jack B. Flick, John R. Pyanowski
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Publication number: 20110042037Abstract: A secondary refrigerant fluid is cooled or heated in the operation of a multiple Tube-fins heat exchanger arranged in parallel for fins to conduct heat transfer with air being propelled by a multi-row bank of low profile brushless fans. Fluid is controlled to ascend the bank of tubes in unison rate for high efficiency heat transfer with air. Large temperature differential exists between air and fluid when conditioned fluid travels through the tubes for a relatively short distance. A system of components is so arranged that the fluid flow rate to every heat exchanger is preset and the “on” or “off” operation of any heat exchanger does not affect the flow rate destined for other heat exchangers. Fluid is not transported to a heat exchanger when it is not in operation saving energy. Each heat exchanger is controlled by an integrated thermostat so occupants can set the air conditioning operation individually independent of all other heat exchangers.Type: ApplicationFiled: August 20, 2009Publication date: February 24, 2011Inventor: John Yenkai Pun
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Publication number: 20110024087Abstract: The present invention relates to a heat sink of a large area, in which a heat-dissipating body is further provided in its limited space. The method for manufacturing a fin includes the steps of providing a fin, cutting the fin to form a foldable piece thereon, folding back the foldable piece to be overlapped on the fin and form an accommodating hole, and punching the folded piece and the fin to form two overlapped through-holes. The fin, the heat-dissipating body and heat pipes are assembled together to obtain the heat sink. Since the fins and the heat-dissipating body dissipate the heat of the heat-generating element simultaneously, the heat-dissipating efficiency of the heat sink can be improved.Type: ApplicationFiled: July 29, 2009Publication date: February 3, 2011Inventors: Kuo-Len Lin, Chen-Hsiang Lin, Ken Hsu, Chih-Hung Cheng
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Patent number: 7856949Abstract: An array of a plurality of heat pipe are mounted in spaced relationship to one another with the hot end of the heat pipes in a heated environment, e.g. the exhaust flue of a furnace, and the cold end outside the furnace. Heat conversion equipment is connected to the cold end of the heat pipes.Type: GrantFiled: December 18, 2007Date of Patent: December 28, 2010Assignee: PPG Industries Ohio, Inc.Inventor: Adam D. Polcyn
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Publication number: 20100307718Abstract: A heat sink includes a first fin assembly including a number of first fins, and a second fin assembly including a number of second fins. The second fin assembly can be retracted into the first fin assembly to reduce volume of the heat sink when packing the heat sink, and the second fin assembly can be extend out of the first fin assembly to increase volume of the heat sink when using the first fin assembly for heat dissipation.Type: ApplicationFiled: July 22, 2009Publication date: December 9, 2010Applicants: HON FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.Inventors: MING-KE CHEN, ZHEN-XING YE
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Publication number: 20100293946Abstract: An annular design heat exchanger is formed from an arrangement of wedge-shaped stacks of wafers. Each wafer includes sheets of material separated by peripheral and supporting walls that define interior flow channels through which a first fluid can flow. Holes in the sheets provide inlets and outlets to the channels, and walls surrounding the holes mate with neighboring wafers in the stack, forming integral inlet and outlet manifolds, while ensuring uniform spacing between the wafers. A second fluid can flow around the manifolds and through the spaces between the wafers in a counterflow pattern. In the annular assembly, the manifolds are oriented substantially axially, and the flow channels are oriented substantially radially. The heat exchanger can be formed from a ceramic material, and can be incorporated into an engine assembly or a heat-recirculating combustor.Type: ApplicationFiled: May 21, 2010Publication date: November 25, 2010Inventor: Michael J. Vick
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Publication number: 20100294474Abstract: A multi-portion heat exchanger tube that increases the efficiency of heat transfer is disclosed. More specifically, a multi-portion heat exchanger tube wherein a second portion contains a significantly greater surface area than a first portion is disclosed. Even more specifically, a multi-portion heat exchanger tube wherein the first portion is significantly tubular in shape and the second portion is significantly shell shaped is disclosed.Type: ApplicationFiled: May 22, 2009Publication date: November 25, 2010Inventor: Sumito Furuya Hirota
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Publication number: 20100288481Abstract: A number of flat tubes, flat tube heat exchangers, and methods of manufacturing both are described and illustrated. The flat tubes can be constructed of one, two, or more pieces of sheet material. A profiled insert integral with the flat tube or constructed from another sheet of material can be used to define multiple flow channels through the flat tube. The flat tubes can be constructed of relatively thin material, and can be reinforced with folds of the flat tube material and/or of an insert in areas subject to higher pressure and thermal stresses. Also, the relatively thin flat tube material can have a corrosion layer enabling the material to resist failure due to corrosion. Heat exchangers having such flat tubes connected to collection tubes are also disclosed, as are manners in which such tubes can be provided with fins.Type: ApplicationFiled: January 19, 2007Publication date: November 18, 2010Inventors: Werner Zobel, Jens Nies, Roland Straehle, Dieter Merz, Rainer Kaeslnger, Siegfried Eisele, Charles James Rogers, Thomas Feldhege
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Publication number: 20100282456Abstract: A heat exchanger comprises a tube and fins extending from an outer surface of the tube. The fins comprise first and second sets of fins with the first set of fins oriented in a first direction with respect to an axial direction of the tube and the second set of fins oriented in a second direction with respect to the axial direction of the tube to expose at least a portion of the first and second sets of fins to a free stream.Type: ApplicationFiled: May 6, 2009Publication date: November 11, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Jorge Alejandro Carretero Benignos, Rodrigo Rodriguez Erdmenger, Sal Albert Leone, Thomas Francis Taylor, Hua Zhang, Johannes Eckstein
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Patent number: 7828469Abstract: A light source module adapted to a projecting device including a light bulb, a fan, and an air tunnel structure is provided. The fan is located by the light bulb for cooling the light bulb. The air tunnel structure is located respective to the location of the light bulb, for removing the heat generated by the light bulb. The air tunnel structure has a curved inner wall, a plurality of fins, and a tank. The curved inner wall is located inside the air tunnel structure respective to the location of the light bulb. The fins are formed on the curved inner wall for blocking the fragments generated by the explosion of the light bulb. The tank is located by a side of the curved inner wall for carrying the fragments clashing the fins.Type: GrantFiled: January 7, 2009Date of Patent: November 9, 2010Assignee: Coretronic CorporationInventors: I-Hsien Liu, Tzu-Tse Huang
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Publication number: 20100276119Abstract: A liquid-loop compound recuperator is disclosed for high-? heat exchange between a first shell-side fluid stream and a second shell-side fluid stream of similar thermal capacity rates (W/K). The compound recuperator is comprised of at least two fluid-to-liquid (FL) recuperator modules for transfer of heat from a shell-side fluid, usually a gas, to an intermediary tube-side heat transfer liquid (HTL). Each FL module includes a plurality of thermally isolated, serially connected, adjacent exchanger cores inside a pressure vessel. The cores are rows of finned tubes for cross-flow transfer of heat, and they are arranged in series to effectively achieve counterflow exchange between the HTL and the shell-side stream. The HTL may be water, an organic liquid, a molten alloy, or a molten salt.Type: ApplicationFiled: June 13, 2008Publication date: November 4, 2010Applicant: DOTY SCIENTIFIC, INC.Inventor: F. David Doty
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Publication number: 20100270013Abstract: A turn-fin tube, a turn-fin type heat exchanger using the same, and an apparatus and method for manufacturing the same are provided. The turn-fin tube includes a tube in which a fluid flows, and a fin wound on an outer surface of the tube in a helical shape. The fin includes a base section wound on an outer surface in contact with the tube, and an extension section extending from the base section in an outward direction of the tube at a predetermined angle.Type: ApplicationFiled: April 22, 2010Publication date: October 28, 2010Inventors: Dong Ha Lee, Jae Jung Park, Sung Jung Yun
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Publication number: 20100263847Abstract: Disclosed is a microchannel heat exchanger (10) including at least one manifold (14) for distributing fluid and a plurality of tubes (12) extending from the at least one manifold (14). At least one tube (12) of the plurality of tubes (12) has a substantially curvilinear cross-section and includes a plurality of ports (24) extending from a first end of each tube (12) to a second end of each tube (12), the ports (24) capable of carrying fluid therethrough. A plurality of fins (16) are located along a length of the plurality of tubes (24). Further disclosed is a method for extracting thermal energy from a flow via a microchannel heat exchanger (10).Type: ApplicationFiled: April 21, 2009Publication date: October 21, 2010Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Abbas A. Alahyari, Mohsen Farzad
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Publication number: 20100243226Abstract: The present invention discloses a fin for a heat exchanger, the fin is formed with louvers, and air, which is used as heat exchange medium, successively flows through said louvers when the heat exchanger operates. The louver gap of the louvers changes in the air flow direction, such that a louver gap at a certain portion of the louvers matches with an amount of frost formed at that portion. With the technical solution of the invention, the louver gap at a certain portion of the louvers is made to match with the amount of frost formed at that portion, such that a sufficient space is still left between adjacent louvers for the air to flow through. As a result, the wind resistance will not increase substantially to decrease the amount of air flowing through, and thus the heat exchange performance of the fin can be utilized completely.Type: ApplicationFiled: March 25, 2010Publication date: September 30, 2010Inventors: Liu Huazhao, Lin-jie Huang
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Publication number: 20100236767Abstract: A plurality of MH tank modules (13) each include a cylindrical porous member (14). The porous member (14) is formed as a hydrogen flow path (15) through which hydrogen can flow and has straight grooves formed on the outer circumferential surface. A plurality of fins (17) are attached to the porous member (14). A first edge and a second edge of each fin (17) are fitted in different grooves. The fins (17) define a plurality of accommodation chambers (19) for accommodating MH powder P. The MH tank modules (13) are accommodated in the housing while being arranged adjacent to each other to form a predetermined shape. Heat medium pipes (22a, 22b) are arranged in the housing (12) so as to contact the fins (17) and correspond to the accommodation chambers (19). Heat medium flows through the heat medium pipes (22a, 2b). Therefore, it is possible to provide a hydrogen gas storing device that easily increases the number of places to be installed in and facilitates the installment.Type: ApplicationFiled: May 9, 2008Publication date: September 23, 2010Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Keiji Toh, Daigoro Mori, Katsuhiko Hirose, Norihiko Haraikawa
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Publication number: 20100230084Abstract: The present invention disclosed a tube-fin type heat exchange unit with high pressure resistance, wherein said heat exchange unit comprises a plurality of tubes, foam metal and a plurality of heat dissipation fins; said tubes and said heat dissipation fins are spaced arranged; said foam metal is located in the interspace between said tubes and the superface of said heat dissipation fins; and solder is disposed between said tubes and said foam metal, and between said foam metal and the superface of said heat dissipation fins to make a firm connection. The heat exchange unit of the present invention has good heat exchange performance, high pressure resistance and small volume, so it is suitable for volume production and could be widely applied in heat exchangers for vehicle, industry and civil use.Type: ApplicationFiled: June 16, 2009Publication date: September 16, 2010Applicant: NANNING BALING TECHNOLOGY INC.Inventors: Qin Luo, Yuanhai Wei
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Publication number: 20100218926Abstract: The invention relates to a cooling fluid cooler for motor vehicles having a soldered cooling network (1) made of flat tubes (101) and ribs (102), produced from very thin aluminum sheets (a, b, c), and having header or loop-around chambers (3) at the ends of the flat tubes (101) for the cooling fluid flowing in the flat tubes (101), said chambers being cooled by cooling air flowing through the ribs (102). The cooling fluid cooler has exceptional cooling power and a light weight. This is achieved according to the invention in that each flat tube (101) is made of at least two formed sheet metal strips (a, b, c), wherein at least the one sheet metal strip (a, b) forms the wall of the flat tube and the other sheet metal strip forms a wavy internal insert (c) forming channels (10) in the same, and that the ratio of the constriction factor on the cooling fluid side to the constriction factor on the cooling air side is approximately in the range of 0.20 to 0.Type: ApplicationFiled: June 24, 2008Publication date: September 2, 2010Inventors: Frank Opferkuch, Jan Bobel, Axel Fezer, Klaus Mohrlok, Ulrich Schaffer
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Publication number: 20100212876Abstract: A heat exchanger has a first fin having a hole, a collar attached to the first fin and associated with the hole, and a bluff body carried by the first fin. The bluff body is partially directly upstream of the collar. A heat exchanger has a fin having a hole, a collar attached to the fin and associated with the hole, and a bluff body associated with the fin. A configuration of the bluff body is associated with a fin pitch separation distance of the heat exchanger. A method of increasing a heat exchange efficiency of a heat exchanger is provided that includes passing an air flow adjacent a surface of a fin, obstructing the air flow with a bluff body, reducing a thickness of a thermal boundary layer, and locating a reduced thickness portion of the thermal boundary layer adjacent to a collar associated with the fin.Type: ApplicationFiled: February 23, 2009Publication date: August 26, 2010Applicant: TRANE INTERNATIONAL INC.Inventor: Stephen S. HANCOCK
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Patent number: 7770816Abstract: In a snow lance head for use with a snow lance with a housing having nozzles for the outlet of water and/or air and with at least one first chamber formed in the interior of the housing, through which water emerging from at least some of the nozzles flows, the surface area of the inner surface of the chamber is at least equal to, but preferably greater than the outer surface of the housing.Type: GrantFiled: August 29, 2005Date of Patent: August 10, 2010Assignee: Technoalpin GmbHInventor: Walter Rieder
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Publication number: 20100175864Abstract: A fin tube heat exchanger has heat transfer fins disposed in an air flow and plural heat transfer tubes that are inserted in the heat transfer fins and disposed in a direction substantially orthogonal to a flow direction of the air flow. On the heat transfer fins, a set of guide fins and a set of guide fins arranged straightly from upstream to downstream in the flow direction of the air flow are formed, by cutting and raising, on the heat transfer fin surfaces on both sides of the heat transfer tubes. Straight lines that hypothetically interconnect the guide fins and the guide fins slant with respect to the flow direction of the air flow so as to guide the air flow in the vicinities of the heat transfer tubes to rear sides of the heat transfer tubes in the flow direction.Type: ApplicationFiled: June 26, 2006Publication date: July 15, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hirokazu Fujino, Hyunyoung Kim, Toshimitsu Kamada, Kazushige Kasai
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Publication number: 20100157537Abstract: A heat sink includes two heat spreaders spaced from each other and a heat dissipation fin disposed and connected between the two heat spreaders. The heat dissipation fin includes a plurality of hollow tubular heat dissipation units arranged linearly from one of the heat spreaders to the other one of the heat spreaders. The heat dissipation units are connected together with their axes along length directions thereof being parallel to each other. Each of the heat dissipation units can resiliently deform to change a distance between the two heat spreaders. The present disclosure also discloses an electronic device incorporating such a heat sink.Type: ApplicationFiled: June 23, 2009Publication date: June 24, 2010Applicants: FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD., FOXCONN TECHNOLOGY CO., LTD.Inventors: FANG-XIANG YU, JER-HAUR KUO
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Publication number: 20100126213Abstract: A liquid-vapor separating method and a liquid-vapor separating type evaporator, the method includes the following steps: (i) provide a partition device (3) in the upper portion of the evaporated liquid pipe, the partition device (3) divides the evaporated liquid pipe into a superheating section (12) and an evaporating section (13); (ii) a liquid-vapor separating pipe (4) is connected to the superheating section (12) near the partition device (3), an evaporated liquid feeding pipe (6) is connected to the evaporating section (13) near the partition device (3), several vapor guiding pipes (5) are respectively provided in the pipe of the evaporating section (13), the vapor guiding pipes (5) are respectively connected with the liquid-vapor separating pipe (4); vapor inside the pipe can flow out, and is separated into vapor and liquid in the liquid-vapor separating pipe (4), then the vapor enters the superheating section (12) and is superheated; the superheated vapor is discharged from a vapor outlet (11); (iii) thType: ApplicationFiled: March 27, 2008Publication date: May 27, 2010Applicant: TSINGHUA UNIVERSITYInventors: Xiaofeng Peng, Di Wu, Gui Lu, Zhen Wang, Yang Zhang
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Publication number: 20100122797Abstract: An assembly type oil cooler has developed for intensively cooling the various kinds of hydraulic machineries. The oil cooler comprises a main body assembled with a plurality of the body units having a plurality of bolt-holes for assembling and water passages disposed circumferentially for cooling, a plurality of annular-sealing having arched sectors, an oil inlet and an oil outlet are installed at the front and rear of the body units, a pair of front and rear flange plates installed at both end-sides of the body units, a plurality of heat exchange pipes and supporting rods inserted to supporting rod engaging holes through supporting rod holes, a front flange-cap having two compartments to connect a cooling water inlet and an outlet and the body cooling water inlets, and a rear flange-cap having the body cooling water inlets arranged around the body unit for connecting the water passages of the rear flange plate.Type: ApplicationFiled: May 16, 2008Publication date: May 20, 2010Inventors: Dong Soong Seo, Wan Soo Choi
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Publication number: 20100089557Abstract: A finned tube heat exchanger includes a plurality heat-transfer fins and a plurality of heat-transfer tubes. The heat-transfer fins are disposed along an airflow direction. The plurality of heat-transfer tubes are inserted into the heat-transfer fins and arranged in a direction substantially orthogonal to the airflow direction. Each of the heat transfer fins includes a plurality of sets of cut-and-raised parts with each set being straightly aligned from the upstream side toward the downstream side. At least one set of cut-and-raised parts is connected by a straight line sloped relative to the airflow direction. Each of the heat transfer fins includes a plurality of concavities with each concavity formed on a periphery of one of the heat-transfer tubes at least partially below a horizontal plane that passes through a center axis of the heat-transfer tubes and lies on an upper surface of the heat transfer fin having the concavity formed therein.Type: ApplicationFiled: September 28, 2007Publication date: April 15, 2010Applicant: DAIKIN INDUSTRIES, LTD.Inventors: Hyunyoung Kim, Hirokazu Fujino, Toshimitsu Kadama, Kazushige Kasai
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Publication number: 20100089556Abstract: The present invention relates to the thermal conductive fluids in temperature difference reversely transported by the first fluid piping and second fluid piping in parallel or quasi-parallel arrangement on the same end side to produce heat absorbing or dissipating function onto the passively heat dissipation or absorption receiving article or space thereby forming a more uniform temperature distribution status on the heat absorbing or dissipating body (100) or the passively heat dissipation or absorption receiving article or space (200).Type: ApplicationFiled: October 14, 2009Publication date: April 15, 2010Inventor: Tai-Her Yang
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Patent number: 7676924Abstract: A method of constructing an inner thermal lining or jacket of a jacketed gasifier having an outer shell with an opening allowing access to an interior of the gasifier, includes inserting jacket wall segments (40) into the gasifier interior through the opening, the jacket wall segments (40) each comprising an elongate jacket plate (42) with an annulus face (44) and a plurality of transversely extending longitudinally spaced stiffener formations (46) standing proud of the annulus face (44). The jacket wall segments (40) are arranged side by side leaving an aperture or space between adjacent jacket plates. The stiffener formations (46) of adjacent spaced jacket wall segments are welded together through the aperture or space between said adjacent spaced jacket wall segments, and the apertures or spaces are closed with window plates.Type: GrantFiled: November 15, 2005Date of Patent: March 16, 2010Assignee: Sasol-Lurgi Technology Company (Proprietary) Ltd.Inventors: Jacobus Andreas Stadler, Zbigniew Franciszek Matyja
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Publication number: 20100032149Abstract: The present invention provides, among other things, a heat exchanger including a plurality of tubes providing a flow path for a first fluid, a fin supported between two of the plurality of tubes and positioned along a flow path for a second fluid. Together, the fin and the plurality of tubes at least partially define a heat exchanger core. The heat exchanger can also include first and second tanks positioned adjacent to opposite ends of the plurality of tubes and an elastically deformable side part extending across the heat exchanger core and including a pair of integrally formed caps for closing openings in the first and second tanks.Type: ApplicationFiled: July 6, 2007Publication date: February 11, 2010Inventors: Helmut Roll, Ramez Abdulnour, Thomas M. Shields, Robert J. Barfknecht, Erwin Schnell
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Patent number: 7654675Abstract: A light assembly includes a heat-dissipating device, a light-emitting device, and a reflector. The heat-dissipating device defines an accommodating space. The light-emitting device is disposed in the accommodating space. The reflector serves to reflect light emitted by the light-emitting device, extends into the accommodating space, and surrounds the light-emitting device.Type: GrantFiled: March 9, 2006Date of Patent: February 2, 2010Assignee: Compal Communications, Inc.Inventor: Shin-Bin Ko