With Discrete Heat Transfer Means Patents (Class 165/181)
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Patent number: 12331959Abstract: A heat exchanger unit according to the present invention includes a sensible heat exchanger including a sensible heat exchange pipe disposed in a sensible heat exchange area for heating water used for heating by receiving sensible heat generated by a combustion reaction, wherein the sensible heat exchange pipe receives the water used for heating and flows same through the interior, and a sensible heat fin disposed in the sensible heat exchange area. The sensible heat fin is formed in a plate shape across the sensible heat exchange pipe and penetrated by the sensible heat exchange pipe; and a latent heat exchanger positioned downstream from the sensible heat exchange area on the basis of a reference direction, which is a flow direction of combustion gas generated during the combustion reaction, the latent heat exchanger including a latent heat exchange pipe disposed in a latent heat exchange area.Type: GrantFiled: January 19, 2023Date of Patent: June 17, 2025Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu Park, Duck Sik Park
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Patent number: 12320549Abstract: A tube profile (1), in particular for manufacturing a heat exchanger for a condensing boiler, wherein the cross-section (10) of the tube profile (1) comprises: a rectangular portion (20) having two greater sides (21, 22) parallel to each other and two smaller sides (31, 32) parallel to each other and orthogonal to the greater sides (21, 22), and an ogival portion (40) defined by a convex flat figure formed by a base (41) and two curved sides (42, 43) connected to each other in an apical zone (48) opposite to said base, wherein said base (41) coincides with a first side (31) of said two smaller sides (31, 32) of the rectangular portion (20), wherein said two curved sides (42,43) are symmetrical to an axis of symmetry (S-S) parallel to said greater sides (21, 22) and passing through the central points (33, 34) of said smaller sides (31, 32), wherein one end of each of said two curved sides (42, 43) joins to one end of a respective one of said two greater sides (21, 22)) in a first joining point (PH1), said eachType: GrantFiled: September 26, 2022Date of Patent: June 3, 2025Assignee: Condevo S.P.A.Inventors: Rocco Giannoni, Giuseppe Bucci
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Patent number: 12320550Abstract: A heat-exchanger unit according to the present invention comprises: a sensible-heat heat-exchange portion arranged in a sensible-heat heat-exchange area for receiving sensible heat generated by a combustion reaction and thereby heating water, the sensible-heat heat-exchange portion having a sensible-heat heat-exchange pipe for receiving the water and causing same to flow through the interior thereof, thereby forming a sensible-heat channel along which the water flows; and a latent-heat heat-exchange portion positioned downstream of the sensible-heat heat-exchange area with reference to a first reference direction along which combustion gas generated during the combustion reaction flows, the latent-heat heat-exchange portion being arranged in a latent-heat heat-exchange area for receiving latent heat generated during a phase change of the combustion gas and thereby heating the water, the latent-heat heat-exchange portion having a latent-heat heat-exchange pipe for receiving the water and causing same to flow tType: GrantFiled: May 30, 2019Date of Patent: June 3, 2025Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu Park, Jun Gil Park
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Patent number: 12292244Abstract: A heat exchanger layer having an inlet side, IN, where a medium enters the layer and an outlet side, OUT, where the medium exits the layer, and a plurality of fins defining a plurality of flow channels for the medium from the inlet side to the outlet side. Each fin has a leading edge adjacent the inlet side and a trailing edge adjacent the outlet side, and wherein the leading edge of a subset of the fins is thicker than the rest of the fin, and the leading edge of the fins intermediate the fins of the subset of fins is recessed with respect to the inlet side compared to the leading edge of the fins of the subset of fins.Type: GrantFiled: December 6, 2022Date of Patent: May 6, 2025Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Adam Horoszczak, Maciej Ostrowski
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Patent number: 12281858Abstract: A heat exchanger having a fins and tubes heat exchanger coupled to a plates heat exchanger and an open sided bypass compartment facing one of the edges of the fin and tubes heat exchanger. The plates heat exchanger has an inlet zone and an outlet zone. The heat exchanger is configured to guide a fluid to flow from the inlet zone, through inlet pathways between plates of the plates heat exchanger, and fins of the fins and tubes heat exchanger then toward the bypass compartment, then in between the fins facing outlet pathways, toward in between the surfaces of the plates facing the outlet pathways, and then toward the outlet zone.Type: GrantFiled: June 24, 2021Date of Patent: April 22, 2025Assignee: WATERGEN LTD.Inventor: Sharon Dulberg
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Patent number: 12275089Abstract: A heat exchanger core comprises a plurality of tubes extending along a first fluid axis, each of the plurality of tubes comprising a leading edge, a trailing edge opposite the leading edge, and a pair of oppositely disposed sidewalls extending from the leading edge to the trailing edge. The leading edge, trailing edge, and the pair of sidewalls define an inner surface and an outer surface of each of the plurality of tubes. Each of a first subset of the plurality of tubes further comprises a roughened region on the outer surface of one of the pair of sidewalls.Type: GrantFiled: May 20, 2022Date of Patent: April 15, 2025Assignee: Hamilton Sundstrand CorporationInventors: John Giuliano, Viktor Kilchyk
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Patent number: 12259198Abstract: A finned tube heat exchanger includes a plurality of tube arrays, each of which includes a plurality of heat transfer tubes that each extend parallel to one another and are disposed at a predetermined pitch in a first direction that intersects a flow direction of heat exchanging air, in a second direction that intersects the first direction, any closest two of the plurality of tube arrays having a predetermined distance therebetween. One closest two tube arrays includes first and second tube arrays that respectively include a plurality of first heat transfer tubes and a plurality of second heat transfer tubes. When seen from the flow direction, each first heat transfer tube is disposed closer to one of an adjacent two second heat transfer tubes that is closest to said each first heat transfer tube, than to the other one of the adjacent two second heat transfer tubes.Type: GrantFiled: July 28, 2022Date of Patent: March 25, 2025Assignee: FUJI ELECTRIC CO., LTD.Inventors: Masaaki Ajima, Masamichi Iwasaki, Jun Nakamura, Yasuhiro Yokoyama
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Patent number: 12188730Abstract: The present disclosure provides a louvered fin including a leading edge, a trailing edge, and a surface extending between the leading edge and the trailing edge. The surface defines a first set of holes along a first axis, a second set of holes along a second axis and offset from the first set of holes, and a third set of holes along a third axis and offset from the second set of holes. Each of the first axis, the second axis, and the third axis extends substantially parallel to a longitudinal axis of the fin. A first offset distance between the second and first set of holes is greater than a second offset distance between the third and second set of holes. The second and the third set of holes define a substantially obtuse trapezoidal matrix.Type: GrantFiled: October 2, 2023Date of Patent: January 7, 2025Assignee: Rheem Manufacturing CompanyInventor: Kevin Mercer
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Patent number: 12078426Abstract: A heat exchanger and heat exchanger core are provided. The heat exchanger core includes a plurality of columnar passages extending between an inlet plenum of the heat exchanger core and an outlet plenum of the heat exchanger core, the columnar passages formed monolithically in a single fabrication process.Type: GrantFiled: March 27, 2023Date of Patent: September 3, 2024Assignee: General Electric CompanyInventors: Ramon Martinez, Nicolas Kristopher Sabo, Curt Edward Hogan, Michael Stephen Popp, Jeffrey Douglas Rambo, Jared Matthew Wolfe
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Patent number: 12038183Abstract: A chilling unit includes a machine room unit to accommodate a compressor and a heat exchanger, and a plurality of air heat exchangers placed on top of the machine room unit. The air heat exchangers include a pair of air heat exchangers including two air heat exchangers opposite to each other in a lateral direction. They are inclined such that respective upper end portions of the two air heat exchangers have a spacing between each other greater than a spacing between respective lower end portions of the two air heat exchangers. In the lateral direction, the machine room unit has a top width greater than a heat-exchanger bottom width, the top width is one between side walls in a top face portion of the machine room unit, the bottom width is defined as a width between outer side faces of the respective lower end portions of the two air heat exchangers.Type: GrantFiled: August 7, 2019Date of Patent: July 16, 2024Assignee: Mitsubishi Electric CorporationInventors: Naoya Mukaitani, Shohei Takenaka, Takahito Hikone, Kimitaka Kadowaki, Yoshio Yamano, Takuya Ito
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Patent number: 11965701Abstract: In a heat exchanger, an outer diameter of a plurality of heat transfer pipes is defined as Do, a wall thickness is defined as tP, an area represented by a numerical expression of a row pitch L1×a step pitch L2 is defined as A, and an area represented by a numerical expression of ((Do?2×tP)/2)2×? is defined as B, a relation of Do<5.5 mm, a relation of (0.2076×tP2?0.1480×tP+0.0545)×Do{circumflex over (?)}(?0.0021×tP2?0.0528×tP+0.0164)?B/A?(0.0219×tP2?0.0185×tP+0.0043)×ln (Do)+(1.6950×tP2+1.8455×tP+1.5416), and a relation of B/A<0.0076×tP2?0.0417×tP+0.0574 are satisfied.Type: GrantFiled: August 6, 2019Date of Patent: April 23, 2024Assignee: Mitsubishi Electric CorporationInventors: Akira Yatsuyanagi, Tsuyoshi Maeda, Akira Ishibashi, Atsushi Morita, Shin Nakamura
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Patent number: 11946702Abstract: A nuclear reactor includes a heat exchanger that transfers thermal energy from a primary reactor coolant to a secondary coolant. The heat exchanger is formed with a hot flow channel, a cold flow channel, and a porous layer between the hot flow channel and the cold flow channel. The porous layer may be thermally insulative to reduce the efficiency of thermal energy transfer from the hot flow channel to the cold flow channel. The porous layer may have a control gas passed therethrough that can be tailored to control the thermal energy transfer through the porous layer. The control gas can be tested for leakage within the heat exchanger. The control gas may also be used to sequester fission or activation products.Type: GrantFiled: March 23, 2021Date of Patent: April 2, 2024Assignee: TERRAPOWER, LLCInventors: Joon Hyung Choi, Daniel Eichel, Mei He, Pavel Hejzlar, Mathieu G. Martin, Samuel J. Miller, James M. Vollmer
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Patent number: 11933548Abstract: A cooler has individual cooling elements (1) of stacked construction having ducts (25) extending in parallel to one another, Each duct delimits a flow chamber (29) for the throughflow of a liquid medium to be cooled. Between each pair of ducts. at least two layers (3, 5) of individual rows of meandering fins (34) extend for the throughflow of air and jointly delimit a further flow chamber (26, 28) each. The respective one flow chamber (29), free of obstacles, permits a laminar flow of the liquid medium through the assignable duct (25) in one throughflow direction. The height (H1) of each fin (34), viewed transversely to the direction of throughflow of the liquid medium, has at least the same height as the free throughflow cross section of the flow chamber (29) of the adjacently arranged duct (25), viewed in parallel to the extension of the respective fin (34).Type: GrantFiled: January 27, 2020Date of Patent: March 19, 2024Assignee: HYDAC COOLING GMBHInventor: Thomas Wolfanger
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Patent number: 11879666Abstract: A heat exchanger unit according to the present invention comprises: a sensible heat exchanger including a sensible heat exchange pipe disposed in a sensible heat exchange area for heating water used for heating by receiving sensible heat generated by a combustion reaction, wherein the sensible heat exchange pipe receives the water used for heating and flows same through the interior, and a sensible heat fin disposed in the sensible heat exchange area, wherein the sensible heat fin is formed in a plate shape across the sensible heat exchange pipe and penetrated by the sensible heat exchange pipe; and a latent heat exchanger positioned downstream from the sensible heat exchange area on the basis of a reference direction, which is a flow direction of combustion gas generated during the combustion reaction, the latent heat exchanger including a latent heat exchange pipe disposed in a latent heat exchange area.Type: GrantFiled: March 31, 2022Date of Patent: January 23, 2024Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu Park, Duck Sik Park
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Patent number: 11859925Abstract: The invention relates to a plate (105) forming part of a heat exchanger and intended to delimit at least one channel (111) for circulation of a fluid. The plate (105) extends principally along an axis of longitudinal extent (A1). The plate (105) comprises at least one bottom (106), at least one first lateral raised edge (19a) which is inscribed within a first plane (P1) intersecting the axis of longitudinal extent (A1), and at least two openings (110) which are configured such that the fluid enters and exits the channel (111), respectively. The bottom (106) is provided with a rib (113) which extends longitudinally from the first lateral raised edge (109a). The rib (113) is positioned between the two openings (110). The rib (113) is of a sinuous configuration.Type: GrantFiled: September 25, 2019Date of Patent: January 2, 2024Assignee: Valeo Systemes ThermiquesInventors: Julien Tissot, Kamel Azzouz, Michael Lissner, Cédric De Vaulx, Patrick Leblay, Sébastien Garnier
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Patent number: 11859916Abstract: A flow path member for a heat exchanger includes: an inner cylinder capable of housing a heat recovery member through which a first fluid can flow; an outer cylinder having a feed port capable of feeding a second fluid and a discharge port capable of discharging the second fluid, the outer cylinder being disposed so as to be spaced on a radially outer side of the inner cylinder such that a flow path for the second fluid is formed between the outer cylinder and the inner cylinder; a feed pipe connected to the feed port; and a discharge pipe connected to the discharge port. The feed port and the discharge port are provided so as to be located in a distance of less than half the circumference of the outer cylinder in a circumferential direction.Type: GrantFiled: September 15, 2021Date of Patent: January 2, 2024Assignee: NGK INSULATORS, LTD.Inventors: Tatsuya Akahani, Tatsuo Kawaguchi, Makoto Yoshihara
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Patent number: 11852422Abstract: Disclosed is a double wave fin plate for a fin-tube heat exchanger, having: one half-plate having one perimeter edge with one cut-out forming one portion of a tube connector; another half-plate having another perimeter edge with another cut-out forming another portion of the tube connector; the one perimeter edge and the other perimeter edge are connected to one another about each cut-out to form the fin plate and the tube connector; one surface waveform is formed on the one half-plate; another surface waveform is formed on the other half-plate, and the one surface waveform is disposed at an angle to the other surface waveform in the fin plate.Type: GrantFiled: September 4, 2020Date of Patent: December 26, 2023Assignee: CARRIER CORPORATIONInventors: Lokanath Mohanta, Arindom Joarder, Jack Leon Esformes
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Patent number: 11841021Abstract: A heat exchanger for changing a temperature of a pumped gas flow and a pump comprising the heat exchanger is disclosed. The heat exchanger comprises: at least one tube configured to contain a flow of fluid; said at least one tube being at least partially embedded within a block of material; wherein said heat exchanger comprises mounting means configured to mount said heat exchanger adjacent to a gas port of a pump such that a least a portion of said heat exchanger extends into a path for gas flow flowing through said gas port; wherein the mounting means comprises a flange, the flange being configured to connect with the gas port of the pump, the block being mounted to the flange such that the block extends towards the rotor of the pump when the flange is connected with the gas port of the pump.Type: GrantFiled: February 28, 2018Date of Patent: December 12, 2023Assignee: Edwards LimitedInventors: William Foote, Stephen Dowdeswell, David Bedwell, Simon Stevens
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Patent number: 11835262Abstract: A heat exchanger unit according to the present invention comprises: a sensible heat exchanger including a sensible heat exchange pipe disposed in a sensible heat exchange area for heating water used for heating by receiving sensible heat generated by a combustion reaction, wherein the sensible heat exchange pipe receives the water used for heating and flows same through the interior, and a sensible heat fin disposed in the sensible heat exchange area, wherein the sensible heat fin is formed in a plate shape across the sensible heat exchange pipe and penetrated by the sensible heat exchange pipe; and a latent heat exchanger positioned downstream from the sensible heat exchange area on the basis of a reference direction, which is a flow direction of combustion gas generated during the combustion reaction, the latent heat exchanger including a latent heat exchange pipe disposed in a latent heat exchange area.Type: GrantFiled: March 31, 2022Date of Patent: December 5, 2023Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu Park, Duck Sik Park
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Patent number: 11835261Abstract: A heat exchanger unit according to the present invention comprises: a sensible heat exchanger including a sensible heat exchange pipe disposed in a sensible heat exchange area for heating water used for heating by receiving sensible heat generated by a combustion reaction, wherein the sensible heat exchange pipe receives the water used for heating and flows same through the interior, and a sensible heat fin disposed in the sensible heat exchange area, wherein the sensible heat fin is formed in a plate shape across the sensible heat exchange pipe and penetrated by the sensible heat exchange pipe; and a latent heat exchanger positioned downstream from the sensible heat exchange area on the basis of a reference direction, which is a flow direction of combustion gas generated during the combustion reaction, the latent heat exchanger including a latent heat exchange pipe disposed in a latent heat exchange area.Type: GrantFiled: March 31, 2022Date of Patent: December 5, 2023Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu Park, Duck Sik Park
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Patent number: 11828501Abstract: Improved heat exchangers according to several embodiments are provided. The heat exchangers provide improved heat transfer for air flow in wet and dry operating conditions, while minimizing pressure drop across the heat exchanger in some applications. According to one embodiment, an improved heat exchanger includes a plurality of metal foam fins between adjacent heat exchange conduits, the heat exchange conduits being arranged parallel to each other to define parallel flow paths between an inlet header and an outlet header. The metal foam fins occupy a cross-flow region between adjacent conduits, the fins having a fixed angular orientation or being rotatable in unison to vary the thermal capacitance of the heat exchanger.Type: GrantFiled: July 30, 2020Date of Patent: November 28, 2023Assignees: UT-BATTELLE, LLC, Board of Trustees of the University of IllinoisInventors: Kashif Nawaz, Anthony M. Jacobi
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Patent number: 11808530Abstract: The present disclosure provides a louvered fin including a leading edge, a trailing edge, and a surface extending between the leading edge and the trailing edge. The surface defines a first set of holes along a first axis, a second set of holes along a second axis and offset from the first set of holes, and a third set of holes along a third axis and offset from the second set of holes. Each of the first axis, the second axis, and the third axis extends substantially parallel to a longitudinal axis of the fin. A first offset distance between the second and first set of holes is greater than a second offset distance between the third and second set of holes. The second and the third set of holes define a substantially obtuse trapezoidal matrix.Type: GrantFiled: October 20, 2021Date of Patent: November 7, 2023Assignee: Rheem Manufacturing CompanyInventor: Kevin Mercer
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Patent number: 11807919Abstract: An aluminum alloy fin material for a heat exchanger is made of an aluminum alloy including 0.05 mass % to 0.5 mass % of Si, 0.05 mass % to 0.7 mass % of Fe, 10 mass % to 2.0 mass % of Mn, 0.5 mass % to 1.5 mass % of Cu, and 3.0 mass % to 7.0 mass % of Zn, with the balance being Al and unavoidable impurities. In an L-ST plane thereof, second-phase grains having an equivalent circle diameter equal to or more than 0.030 ?m and less than 0.50 ?m have a perimeter density of 0.30 ?m/?m2 or more, second-phase grains having an equivalent circle diameter equal to or more than 0.50 ?m have a perimeter density of 0.030 ?m/?m2 or more, and specific resistance thereof at 20° C. is 0.030 ??m or more.Type: GrantFiled: December 1, 2017Date of Patent: November 7, 2023Assignee: UACJ CORPORATIONInventors: Wataru Nakagawa, Atsushi Fukumoto, Junichi Mochizuki, Tatsuya Ide
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Patent number: 11774187Abstract: A heat transfer fin includes a fin body and a plurality of through-holes formed through the fin body and spaced apart from each other in a first direction. When a flow direction of combustion gas that is to flow along a surface of the fin body is referred to as a second direction, the fin body includes a distal surrounding part that surrounds a first distal area located at the farthest upstream side of each of the through-holes. The shortest distance between an inner and an outer boundary of the distal surrounding part that is obtained in an area of the distal surrounding part located at the farthest upstream side is smaller than the shortest distance between the inner and the outer boundary that is obtained in an area of the distal surrounding part located at the farthest downstream side.Type: GrantFiled: April 17, 2019Date of Patent: October 3, 2023Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Gil Park, In Chul Jeong, Jung Yul Bae
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Patent number: 11761714Abstract: A fin, comprising: multiple fin subunits arranged in multiple rows, the fin subunits in two adjacent rows being arranged in an offset fashion.Type: GrantFiled: April 15, 2021Date of Patent: September 19, 2023Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLPInventors: Shifeng Feng, Xiaokui Ma, Li Wang, Amie Sun
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Patent number: 11619454Abstract: A heat exchanger (4) has fluid flow channels (6) with at least one heat exchanging surface (10) which has an undulating surface section for which the surface profile varies along a predetermined direction such that at a first edge (E1) the surface profile follows a first transverse wave (20), at a second edge (E)2 the surface profile follows a second transverse wave (22) and at an intermediate point I between the edges the surface profile follows a third transverse wave (24). The third transverse wave (24) has a different phase, frequency or amplitude to the first and second transverse waves so that chevron-shaped ridges and valleys are formed. This improves the mixing of fluid passing through the channel and hence the heat exchange efficiency.Type: GrantFiled: August 1, 2018Date of Patent: April 4, 2023Assignee: HIETA TECHNOLOGIES LIMITEDInventors: Ahmed Hussein, Javier Viñuales Navarro
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Patent number: 11585572Abstract: A heat exchanger unit according to the present invention comprises: a sensible heat exchanger including a sensible heat exchange pipe disposed in a sensible heat exchange area for heating water used for heating by receiving sensible heat generated by a combustion reaction, wherein the sensible heat exchange pipe receives the water used for heating and flows same through the interior, and a sensible heat fin disposed in the sensible heat exchange area, wherein the sensible heat fin is formed in a plate shape across the sensible heat exchange pipe and penetrated by the sensible heat exchange pipe; and a latent heat exchanger positioned downstream from the sensible heat exchange area on the basis of a reference direction, which is a flow direction of combustion gas generated during the combustion reaction, the latent heat exchanger including a latent heat exchange pipe disposed in a latent heat exchange area.Type: GrantFiled: May 30, 2019Date of Patent: February 21, 2023Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: Jun Kyu Park, Duck Sik Park
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Patent number: 11561052Abstract: A heat exchanger has flow channels for coolants, which flow channels include turbulence elements having a different flow resistance depending on a direction of a flow, wherein the flow can be passed through the heat exchanger in different directions. As part of a method of operating the heat exchanger, the heat exchanger is flowed through in different directions using a pump that can be operated in different directions.Type: GrantFiled: March 1, 2021Date of Patent: January 24, 2023Assignee: HANON SYSTEMSInventors: Joerg Martini, Christoph Pauls
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Patent number: 11519679Abstract: A tube and fin heat exchanger includes a plurality of heat exchange tubes configured for flowing a refrigerant therethrough, a plurality of fins positioned such that the plurality of heat exchange tubes pass through a plurality of tube openings in the plurality of fins, and a plurality of vortex generators extending from a fin surface of the plurality of fins. The plurality of vortex generators are arranged to define nozzle like passages at the heat exchange tubes.Type: GrantFiled: September 4, 2020Date of Patent: December 6, 2022Assignee: CARRIER CORPORATIONInventor: Arindom Joardar
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Patent number: 11499784Abstract: A heat exchanger includes a plurality of fins extending along upper and lower directions, and a flat tube extending crosswise to the plurality of fins. Each of the plurality of fins has a first side edge portion and a second side edge portion, the first side edge portion and the second side edge portion extending along the upper and lower directions. The flat tube has end portions in the longitudinal axis direction of the flat tube, the end portions including a first end portion and a second end portion. The first end portion is positioned closer to the first side edge portion than the second end portion is to the first side edge portion.Type: GrantFiled: October 5, 2018Date of Patent: November 15, 2022Assignee: Mitsubishi Electric CorporationInventors: Tsuyoshi Maeda, Akira Yatsuyanagi, Tomohiko Takahashi, Yoshihide Asai
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Patent number: 11499210Abstract: There are provided a heat exchanger having a flat tube and a fin bonded together, without causing melting of a coating material covering the fin, and a method of manufacturing thereof. A heat exchanger includes: a flat tube having a flat cross-sectional shape and covered with an anticorrosive layer; and a fin bonded to the flat tube with a bonding agent on a first surface of the anticorrosive layer interposed therebetween, and covered with a coating material, the first surface of the anticorrosive layer having been roughened, and the bonding agent being fixed to the roughened first surface.Type: GrantFiled: December 21, 2016Date of Patent: November 15, 2022Assignee: Mitsubishi Electric CorporationInventor: Daisuke Ito
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Patent number: 11480081Abstract: When the porous ceramic structure contains Co together with Fe or Mn, the Co content is higher than or equal to 0.1 mass % and lower than or equal to 3.0 mass % in terms of Co3O4, and when the porous ceramic structure contains Co without containing Fe and Mn, the Co content is higher than or equal to 0.2 mass % and lower than or equal to 6.0 mass % in terms of Co3O4. The ratio of the sum of the Fe content in terms of Fe2O3, the Mn content in terms of Mn2O3, and the Co content in terms of Co3O4 to the Ce content in terms of CeO2 is higher than or equal to 0.8 and lower than or equal to 9.5.Type: GrantFiled: June 11, 2021Date of Patent: October 25, 2022Assignee: NGK Insulators, Ltd.Inventors: Yunie Izumi, Kennichi Hidaka, Akihiro Miura
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Patent number: 11448472Abstract: A heat transfer fin includes a fin body having a plate shape, a plurality of through-holes famed through the fin body and spaced apart from each other in a first direction, in which a heat exchange pipe is inserted into the plurality of through-holes and heating water flows along an empty space in the heat exchange pipe, and two outer body portions protruding outward from at least partial areas of opposite ends of the fin body with respect to the first direction. Each of the outer body portions includes a contact portion that makes contact with a heat-insulating pipe with a heat-insulating side plate therebetween and that has a shape corresponding to at least a partial area of an outer surface of the heat-insulating pipe through which the heating water flows and a separated portion spaced apart from the heat-insulating side plate to form a gap.Type: GrantFiled: December 23, 2019Date of Patent: September 20, 2022Assignee: KYUNGDONG NAVIEN CO., LTD.Inventors: In Chul Jeong, Jung Yul Bae
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Patent number: 11441814Abstract: A water heating device includes: a heat exchanger having a case to which heating air is supplied, and heat transfer pipes accommodated inside the case; and a straightening vane arranged on the downstream side in a heating air flow direction of the heat transfer pipes, and having a plurality of vent holes. The heat transfer pipe includes a plurality of pipe body portions that extend along a direction intersecting the heating air flow direction and approach the straightening vane. The plurality of vent holes are arranged so as to overlap the plurality of pipe body portions in the heating air flow direction.Type: GrantFiled: August 22, 2019Date of Patent: September 13, 2022Assignee: NORITZ CORPORATIONInventors: Naoya Shiotsu, Masaki Kondo
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Patent number: 11397059Abstract: Flow paths and boundary layer restart features are provided. For example, a flow path comprises a flow path wall defining an inner flow path surface and an asymmetric notch defined in the flow path wall. The asymmetric notch comprises a first surface and a second surface and is asymmetric about a first line extending through an intersection of the first and second surfaces. Further, a flow boundary layer restart feature comprises a first surface extending inward with respect to a flow path surface of a flow path and a second surface extending inward with respect to the flow path surface. The second surface is asymmetric with respect to the first surface such that the first and second surfaces define an asymmetric notch. Additionally, a flow path wall may comprise an asymmetric notch that includes a flow expansion angle and a flow contraction angle that are unequal.Type: GrantFiled: September 17, 2019Date of Patent: July 26, 2022Assignee: General Electric CompanyInventors: Thomas Kupiszewski, Jeffrey Douglas Rambo, Emily Rosette Clark
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Patent number: 11389911Abstract: A method of manufacturing a heat sink includes a rib portion forming step of forming a rib portion on a substrate having a flat plate shape in such a manner that a first groove and a second groove are formed on a front surface side of the substrate by plastically deforming the substrate by a press thus forming the rib portion in a region sandwiched between the first groove and the second groove. The method further includes a back surface protruding ridge portion cutting removal step of removing protruding ridge portions formed on a back surface side of the substrate by cutting. The method further includes a fin forming step of forming a plurality of fins by working the rib portion; and a heat sink separating step of obtaining the heat sink by separating a portion within a predetermined range which includes the fins from the substrate.Type: GrantFiled: October 1, 2020Date of Patent: July 19, 2022Assignee: NAKAMURA MFG. CO., LTD.Inventors: Keiichi Takahashi, Kazuto Arai
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Patent number: 11384996Abstract: A heat exchanger includes: a plate-like fin having one end and an other end in a first direction; and a first heat transfer tube and a second heat transfer tube that each extends through the fin and that are adjacent to each other in a second direction. A portion to which the fin and the first heat transfer tube are connected and a clearance portion that separates between the fin and the first heat transfer tube are disposed between the fin and the first heat transfer tube. The clearance portion is disposed at one end side in the first direction relative to an imaginary center line that passes through a center of the first heat transfer tube in a long side direction and that extends along a short side direction.Type: GrantFiled: October 16, 2017Date of Patent: July 12, 2022Assignee: Mitsubishi Electric CorporationInventors: Shin Nakamura, Tsuyoshi Maeda, Akira Ishibashi, Tomoyuki Hayashi
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Patent number: 11384997Abstract: A heat exchanger, a heat exchanger unit, and a refrigeration cycle apparatus are provided where deterioration in drainage and ventilation properties is prevented, an air passage is not easily clogged when frost forms, and both defrosting properties and heat exchange performance are achieved. A flat tube and a plurality of fins that are each a plate having a plate surface extending in a longitudinal direction and in a width direction orthogonal to the longitudinal direction are provided. The plate surface intersects a pipe axis of the flat tube. The plurality of fins each have an insertion portion in which the flat tube is inserted, a first spacer formed at a rim of the insertion portion and maintaining the interval, and a second spacer formed at a portion of the plate other than the rim of the insertion portion and maintaining the interval.Type: GrantFiled: June 13, 2018Date of Patent: July 12, 2022Assignee: Mitsubishi Electric CorporationInventors: Tsuyoshi Maeda, Akira Yatsuyanagi, Tomohiko Takahashi, Yoshihide Asai, Hidetomo Nakagawa
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Patent number: 11215361Abstract: In a structure for cooling a component member of a gas turbine using a working gas, a plurality of heat transfer enhancement ribs having W shapes are provided so as to project from the wall surface of a passage wall facing a cooling medium passage through which a cooling medium flows. In each heat transfer enhancement rib, outside corner portions facing toward the upstream side are formed in an angled shape, and at least any one of inside corner portions and outside corner portions other than the outside corner portion facing toward the upstream side are formed in a curved shape.Type: GrantFiled: November 30, 2018Date of Patent: January 4, 2022Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Tomoko Tsuru, Katsuhiko Ishida, Yuwa Kawahara
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Patent number: 11208336Abstract: A desalination device includes a sealed desalination chamber with two compartments, an evaporator space that contains saline water, and a condenser space that contains fresh water, a saline water distribution mechanism that directs the saline water into the evaporator space, a vapor compressor that directs a stream of pressurized freshwater vapor into the condenser space, and an integrated regenerative boundary between the evaporator space and the condenser space that has two sides, an evaporation surface and a condensation surface, enabling the pressurized freshwater vapor to condense on the condensation surface to generate freshwater, and where the latent heat of the condensation process transfers across the integrated regenerative boundary into the evaporator space and evaporates a portion of the saline water to produce freshwater vapor.Type: GrantFiled: February 11, 2020Date of Patent: December 28, 2021Assignee: AMANTSY, INC.Inventors: Artin Der Minassians, Seth R. Sanders
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Patent number: 11209224Abstract: A heat exchanger is disclosed and includes a plate portion including a plurality of internal passages extending between an inlet and an outlet and at least one means for providing fluid communication between at least two of the plurality of internal passages.Type: GrantFiled: February 21, 2019Date of Patent: December 28, 2021Assignee: Raytheon Technologies CorporationInventors: Wililam P. Stillman, Michael A. Disori, Dave J. Hyland, Carl R. Verner
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Patent number: 11187443Abstract: A machine for making liquid/semi-liquid food products includes a container for the product; a dispenser connected to the container which allows or inhibits dispensing of the product; a mixing stirrer rotatable about an axis of rotation and mounted inside the container; a thermal system including a circuit with a heat exchanger fluid and an evaporator operatively associated with the container and including an inlet aperture for the fluid, a discharge aperture for the fluid, a first tubular element and a second tubular element coaxial with the first tubular element and having an axial direction of extension and a radial direction of extension, the second tubular element extending along an axial direction parallel to the axis of rotation and being disposed inside the first tubular element to define an annular chamber for circulating the fluid and defined by at least one microchannel, the microchannel having a hydraulic diameter of 3-13 mm.Type: GrantFiled: May 9, 2019Date of Patent: November 30, 2021Assignee: ALI GROUP S.R.L.—CARPIGIANIInventors: Andrea Cocchi, Roberto Lazzarini
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Patent number: 11168884Abstract: In a structure for cooling a component member of a gas turbine using a working gas, a plurality of heat transfer enhancement ribs having W shapes are provided so as to project from the wall surface of a passage wall facing a cooling medium passage through which a cooling medium flows. In each heat transfer enhancement rib, outside corner portions facing toward the upstream side are formed in an angled shape, and at least any one of inside corner portions and outside corner portions other than the outside corner portion facing toward the upstream side are formed in a curved shape.Type: GrantFiled: November 30, 2018Date of Patent: November 9, 2021Assignee: KAWASAKI JUKOGYO KABUSHIKI KAISHAInventors: Tomoko Tsuru, Katsuhiko Ishida, Yuwa Kawahara
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Patent number: 11171372Abstract: The present invention refers to a coolant distributor for a battery module housing with a hollow profile enclosing a coolant channel and a plurality of coolant junctions, each extending through a first portion of the hollow profile and providing a fluid connection between the coolant channel and a coolant port. The invention further relates to a battery module housing with a bottom plate comprising a plurality of embedded coolant ducts and a coolant distributor according to the invention that is welded to the bottom plate, such that each of the plurality of coolant ports is aligned with one of a plurality of inlet openings of the coolant ducts. The present invention further relates to a battery system housing, comprising a plurality of battery module housings according to the invention and a plurality of pipe couplings for interconnecting adjacent battery module housings, and to the pipe coupling.Type: GrantFiled: March 27, 2019Date of Patent: November 9, 2021Assignee: SAMSUNG SDl CO., LTD.Inventors: Matthias Pucher, Carl-Michael Masaryk
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Patent number: 11118839Abstract: A heat exchange assembly (1) for a heat exchanger, a heat exchanger comprising the heat exchange assembly (1), and a mold forming the heat exchange assembly (1) are provided. The heat exchange assembly (1) comprises: multiple heat exchange tubes (11) through which a heat exchange medium flows; a connecting plate (12) connected between adjacent heat exchange tubes (11); and a heat exchange plate (121) formed by at least one part of the connecting plate (12). The mold comprises: a first mold, the first mold forming holes (110) in the multiple heat exchange tubes (11); and a second mold (2), the second mold having a mold cavity (20) forming a main body of the heat exchange assembly (1), the mold cavity (20) having an opening (21), the heat exchange assembly (1) being extruded from the opening (21) of the mold cavity (20) of the second mold (2), and the opening (21) being strip-shaped and extending along a curved line.Type: GrantFiled: September 27, 2017Date of Patent: September 14, 2021Assignee: DANFOSS MICRO CHANNEL HEAT EXCHANGER (JIAXING) CO., LTD.Inventors: Feng Zhang, Xiangxun Lu, Pierre Olivier Pelletier
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Patent number: 10808552Abstract: A gaspath component for a gas turbine engine includes a platform having at least one internal cooling passage. The at least one internal cooling passage has a plurality of trip strips extending into the cooling passage from at least one internal surface of the cooling passage. Each of the trip strips is defined by a z-shaped configuration.Type: GrantFiled: June 18, 2018Date of Patent: October 20, 2020Assignee: Raytheon Technologies CorporationInventors: Brandon W. Spangler, Dominic J. Mongillo, Jr.
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Patent number: 10760427Abstract: A slot is provided in an endwall of a flow passage, for example between two stator vanes or rotor blades of a gas turbine engine. The length direction of the flow passage is aligned substantially with the main flow through the flow passage. The alignment of the slot means that the “over-turned” boundary layer flow can be extracted through the slot but with minimal impact on the mainstream flow.Type: GrantFiled: June 20, 2018Date of Patent: September 1, 2020Assignee: Rolls-Royce plcInventor: Stephane M M Baralon
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Patent number: 10697629Abstract: An enhanced boiling apparatus includes a substrate having at least one heated region, at least one outer surface, and one or more asymmetric shaped cavities extending into the substrate along the at least one outer surface. Each of the one or more asymmetric shaped cavities has a sidewall which intersects at a corner with a bubble pathway surface with a different slope from the sidewall. Each of the asymmetric shaped cavities is configured to non-gravitationally direct fluid that is moving along the sidewall out along the bubble pathway surface.Type: GrantFiled: May 14, 2012Date of Patent: June 30, 2020Assignee: ROCHESTER INSTITUTE OF TECHNOLOGYInventor: Satish G. Kandlikar
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Patent number: 10619930Abstract: A heat exchanger includes: a plurality of flat pipes each having flat surfaces directed upward and downward, wherein the flat pipes are arranged in an up-down direction and extend in a fin stacking direction intersecting an air flow direction; and a plurality of heat transfer fins stacked in the fin stacking direction and each including: a plurality of cutouts into which the flat pipes are inserted, respectively, wherein the cutouts extend from a leeward side toward a windward side in the air flow direction; a plurality of fin main parts each formed between the cutouts adjacent to each other in the up-down direction; a fin windward part continuously extending from the fin main parts in the air flow direction toward the windward side of the cutouts; and a fin collar part extending from a peripheral portion of each of the cutouts toward one side in the fin stacking direction.Type: GrantFiled: September 15, 2017Date of Patent: April 14, 2020Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Ken Satou, Masanori Jindou, Kouju Yamada
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Patent number: 10578375Abstract: A fin and a heat exchanger having the fin, wherein the fin includes a sheet body. The sheet body includes a plurality of cooling sheet units arranged along a longitudinal direction of the sheet body. Each cooling sheet unit includes a windward zone, a main heat exchange zone and a leeward zone arranged along a transverse direction of the sheet body. The windward zones of adjacent cooling sheet units are connected to each other. A flat tube groove extends between the leeward zone and the main heat exchange zone of one of the adjacent cooling sheet units and the leeward zone and the main heat exchange zone of the other of the adjacent cooling sheet units. Each cooling sheet unit is provided with a plurality of protrusions spaced apart from each other.Type: GrantFiled: September 21, 2016Date of Patent: March 3, 2020Assignee: SANHUA (HANGZHOU) MICRO CHANNEL HEAT EXCHANGER CO., LTD.Inventors: Leilei Wang, Yan He, Xin Liang