US20140116662A1 - Serpentine heat exchanger - Google Patents

Serpentine heat exchanger Download PDF

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Publication number
US20140116662A1
US20140116662A1 US14/124,345 US201214124345A US2014116662A1 US 20140116662 A1 US20140116662 A1 US 20140116662A1 US 201214124345 A US201214124345 A US 201214124345A US 2014116662 A1 US2014116662 A1 US 2014116662A1
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US
United States
Prior art keywords
tube
heat exchanger
folded
protrusions
serpentine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US14/124,345
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English (en)
Inventor
Yoshikazu Takamatsu
Masayuki Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Marelli Corp
Original Assignee
Calsonic Kansei Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Calsonic Kansei Corp filed Critical Calsonic Kansei Corp
Assigned to CALSONIC KANSEI CORPORATION reassignment CALSONIC KANSEI CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAKAMURA, MASAYUKI, TAKAMATSU, YOSHIKAZU
Publication of US20140116662A1 publication Critical patent/US20140116662A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0477—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag
    • F28D1/0478—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being bent in a serpentine or zig-zag the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0358—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by bent plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/126—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element consisting of zig-zag shaped fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/424—Means comprising outside portions integral with inside portions
    • F28F1/426—Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/042—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element
    • F28F3/044—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of local deformations of the element the deformations being pontual, e.g. dimples
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2225/00—Reinforcing means
    • F28F2225/04—Reinforcing means for conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/12—Fastening; Joining by methods involving deformation of the elements
    • F28F2275/122—Fastening; Joining by methods involving deformation of the elements by crimping, caulking or clinching

Definitions

  • the present invention relates to a serpentine heat exchanger.
  • a serpentine heat exchanger disclosed in JP2001-27484A has been known as a heat exchanger used as an evaporator or a capacitor of an air conditioner for a vehicle.
  • the serpentine heat exchanger has a configuration in which a tube having a medium passage inside thereof is folded back in a serpentine (meandering) shape, and a fin is arranged in a space enclosed by the folded tube.
  • the serpentine heat exchanger has an advantage that changes in length and folding positions/the number of folds of the tube enable various sizes, that is, various capacities, of heat exchangers to be manufactured.
  • a serpentine heat exchanger needs to include fins as many as possible to achieve size reduction and high efficiency thereof by reducing a curvature radius of a folded portion of a tube by thinning a wall of the tube, and reducing a space inside the folded portion, the space being in which the fin is not arranged.
  • medium passages formed in the tube are a plurality of parallel passages as illustrated in FIG. 6 .
  • a medium flowing in one passage is not mixed with a medium flowing in the other passage, so that a temperature difference is generated between the passages, causing difficulty in achieving high efficiency of the heat generator.
  • the present invention has been made to solve such technical problems, and an object of the present invention to achieve size reduction and high efficiency of a serpentine heat exchanger.
  • a serpentine heat exchanger includes a tube formed by bonding two press-molded tube sheets and folded back in a serpentine shape, and a fin arranged in a space enclosed by the tube that is folded-back, wherein an inside of a folded-back portion of the tube includes a plurality of protrusions at a distance from one another, the protrusions protruding from one tube sheet and contacting the other tube sheet.
  • the serpentine-shaped tube is formed by superposing the press-molded tube sheets and folding back the superposed tube sheets. Since a wall of the tube can be thinner than that of a tube manufactured by extrusion molding, a curvature radius of the folded portion can be reduced. This can reduce a space inside the folded portion, the space being in which the fin cannot be disposed. Thus, a larger number of the fins can be arranged, thereby achieving size reduction and high efficiency of the heat exchanger.
  • a medium flowing inside the tube flows while being constantly mixed through gaps among the protrusions. This also allows the heat exchanger to achieve high efficiency.
  • FIG. 1 is an overall configuration view of a serpentine heat exchanger according to a first embodiment of the present invention.
  • FIG. 2A is a diagram illustrating a tube which is cut in a folded-back portion in a lateral direction.
  • FIG. 2B is a diagram illustrating a tube which is cut in a straight portion in a lateral direction.
  • FIG. 2C is a diagram illustrating a tube which is cut in a folded-back portion and a straight portion in a longitudinal direction.
  • FIG. 3 is a cross-sectional view of a tube.
  • FIG. 4A is a diagram explaining a manufacturing method.
  • FIG. 4B is a diagram explaining the manufacturing method.
  • FIG. 4C is a diagram explaining the manufacturing method.
  • FIG. 4D is a diagram explaining the manufacturing method.
  • FIG. 4E is a diagram explaining the manufacturing method.
  • FIG. 4F is a diagram explaining the manufacturing method.
  • FIG. 4G is a diagram explaining the manufacturing method.
  • FIG. 4H is a diagram explaining the manufacturing method.
  • FIG. 5 is a cross-sectional view of a tube according to a second embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of a conventional tube.
  • FIG. 1 is an overall configuration view of a serpentine heat exchanger (hereinafter called “a heat exchanger”) 100 according to a first embodiment of the present invention.
  • a heat exchanger a serpentine heat exchanger
  • the heat exchanger 100 includes a tube 1 , a corrugated fin 2 , an inlet adapter 3 , an outlet adapter 4 , an inlet pipe 5 , and an outlet pipe 6 .
  • the tube 1 is formed by superposing tube sheets 11 (see FIG. 4A ) and folding back the superposed tube sheets 11 in a serpentine (meandering) shape.
  • Each of the tube sheets 11 includes a recessed groove 7 and a plurality of truncated conical protrusions 8 (see FIG. 2A through FIG. 2C and FIG. 3 ) formed by press molding, the truncated conical protrusions 8 protruding inside the recessed groove 7 .
  • a folded back portion of the tube 1 is expressed as “a folded-back portion”, whereas a portion that is not folded back is expressed as “a straight portion”.
  • FIG. 2A through FIG. 2C are diagrams respectively illustrating the tube 1 cut in the folded-back portion in a lateral direction, the tube 1 cut in the straight portion in a lateral direction, and the tube 1 cut in the folded-back portion and the straight portion in a longitudinal direction.
  • FIG. 3 is a cross-sectional view of the tube 1 .
  • the protrusions 8 of one tube sheet 11 butt the protrusions 8 of the other tube sheet 11 , so that pillars extending in a thickness direction of the tube 1 are formed inside the tube 1 .
  • the protrusions 8 are formed at a distance from one another in a surface direction (a flow direction of a medium and a direction perpendicular thereto) of the tube sheet 11 .
  • the protrusions 8 reinforce the straight portion, and prevent reduction in an area of passage cross-section due to a crush of the tube 1 in the folded-back portion.
  • the protrusions 8 are arranged in a staggered pattern, and do not block the passage of the medium.
  • the corrugated fin 2 is a fin formed by folding a metal plate in a corrugated shape.
  • the corrugated fin 2 is arranged in each of the plurality of U-shaped spaces formed by the folded-back tube 1 , and an upper end and a lower end thereof contact the tube 1 .
  • the inlet adapter 3 and the inlet pipe 5 are connected to one end of the tube 1 .
  • the outlet adapter 4 and the outlet pipe 6 are connected to the other end of the tube 1 .
  • the heat exchanger 100 is configured as described above, so that a medium flowing into the inlet adapter 3 from the inlet pipe 5 flows from a lower side to an upper side in the figure by passing inside the meandering tube 1 .
  • heat of the medium is exchanged with the air passing through the corrugated fins 2 .
  • the medium is fed to the outlet adapter 4 and discharged from the outlet pipe 6 .
  • the tube sheet 11 is manufactured by press working ( FIG. 4A ).
  • the tube sheet 11 has the recessed groove 7 extending in a longitudinal direction in the middle thereof.
  • the plurality of protrusions 8 at a distance from one another in a surface direction of the tube sheet 11 , protrudes from a bottom of the recessed groove 7 .
  • the protrusion 8 has a height equal to a depth of the recessed groove 7 .
  • the tabs 12 are formed on both sides of a portion to be the folded-back portion.
  • two tube sheets 11 are prepared and superposed such that the recessed grooves 7 are provided inside, thereby forming the tube 1 ( FIG. 4B ).
  • the two tube sheets 11 are aligned such that positions of the protrusions 8 and the tabs 12 of one tube sheet 11 coincide with positions of the protrusions 8 and the tabs 12 of the other tube sheet 11 .
  • the superposition of the recessed grooves 7 forms a medium passage inside the tube 1 .
  • the protrusions 8 are butted together, so that the pillars extending in a thickness direction are formed inside the tube 1 .
  • the tabs 12 are folded, and the tube sheets 11 are swaged together ( FIG. 4C ).
  • the tabs 12 are folded in the same direction as that in which the tube 1 is folded.
  • the tube 1 is folded back at a plurality of locations, and thus formed in a serpentine shape ( FIG. 4D ).
  • force is applied to both sides of the portion to be folded back while a jig is contacting this portion.
  • the tube sheets 11 are swaged together by the tabs 12 , the two tube sheets 11 can remain in close contact with each other even after the tube 1 is folded back, and a gap is not generated on a side surface of the tube 1 .
  • the inlet adapter 3 is connected to one end of the tube 1 , and the outlet adapter 4 is connected to the other end ( FIG. 4E ).
  • Each of the inlet adapter 3 and the outlet adapter 4 has a cylindrical shape, and includes an opening on an end surface thereof and a slit-shaped opening on a side surface thereof.
  • the inlet pipe 5 or the outlet pipe 6 is connected to the opening, whereas the end of the tube 1 is connected to the slit-shaped opening.
  • the corrugated fin 2 is inserted and arranged in a space between the folded-back tube 1 ( FIG. 4F ).
  • the inlet pipe 5 is connected to the inlet adapter 3 , and the outlet pipe 6 is connected to the outlet adapter 4 ( FIG. 4G ).
  • the serpentine-shaped tube 1 is formed by superposing the press-molded tube sheets 11 and folding back the superposed tube sheets 11 at a plurality of locations. Since a wall of the tube 1 can be thinner than that of a tube manufactured by extrusion molding, a curvature radius of the folded portion can be reduced. This can reduce a space inside the folded portion, the space being in which the corrugated fin 2 cannot be disposed. Thus, a larger number of the corrugated fins 2 can be arranged, thereby achieving size reduction and high efficiency of the heat exchanger 100 .
  • a medium flowing inside the tube 1 flows while being constantly mixed through gaps among the protrusions 8 (pillars). This also enables the heat exchanger 100 to achieve high efficiency.
  • the tube sheets 11 are swaged together with the tabs 12 . Accordingly, when the tube 1 is folded back, the tube sheets 11 are not separated from each other, thereby preventing generation of a gap on a side surface of the tube 1 .
  • the protrusion 8 formed on the tube sheet 11 has a truncated conical shape, strength of the tube 1 in the straight portion can be ensured, and foldability in the folded portion can also be ensured.
  • a second embodiment differs from the first embodiment in a forming method of a pillar to be formed inside a tube 1 .
  • the protrusions 8 are formed on both of the two tube sheets 11 forming the tube 1 , and then butted together to form pillars. In the second embodiment, however, protrusions 8 are formed on only one tube sheet 11 . The protrusions 8 are not formed on the other tube sheet 11 . In the second embodiment, the protrusions 8 formed on one tube sheet 11 are butted on a flat surface of the other tube sheet 11 , so that pillars are formed inside the tube 1 .
  • FIG. 5 is a cross-sectional view of the tube 1 according to the second embodiment.
  • the protrusions 8 are formed on only one tube sheet 11 , and not formed on the other tube sheet 11 . With such a structure, pillars can be formed inside the tube 1 . This structure does not require alignment of the protrusions 8 , and can simplify a manufacturing process.
  • the protrusions 8 are formed on the entire tube 2 .
  • the protrusions 8 may be provided in at least a folded portion. If strength of a straight portion can be ensured without the protrusions 8 , the straight portion does not need to have the protrusions 8 .
  • the protrusion 8 may have a cylindrical shape or a prism shape (a triangular prism, a quadrangular prism, and the like) instead of a truncated conical shape.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US14/124,345 2011-06-17 2012-05-21 Serpentine heat exchanger Abandoned US20140116662A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011-135178 2011-06-17
JP2011135178A JP5663413B2 (ja) 2011-06-17 2011-06-17 サーペンタイン型熱交換器
PCT/JP2012/062900 WO2012172928A1 (ja) 2011-06-17 2012-05-21 サーペンタイン熱交換器

Publications (1)

Publication Number Publication Date
US20140116662A1 true US20140116662A1 (en) 2014-05-01

Family

ID=47356922

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/124,345 Abandoned US20140116662A1 (en) 2011-06-17 2012-05-21 Serpentine heat exchanger

Country Status (5)

Country Link
US (1) US20140116662A1 (de)
EP (1) EP2722628A4 (de)
JP (1) JP5663413B2 (de)
CN (1) CN103608636A (de)
WO (1) WO2012172928A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150129180A1 (en) * 2012-06-08 2015-05-14 Fraunhofer-Gesellschaft zur Foerderung der antgewandten Forschung e.V. Heat exchanger system, method for producing same, and fluid distribution element
USD763417S1 (en) * 2012-08-02 2016-08-09 Mitsubishi Electric Corporation Heat exchanger tube
US20170336152A1 (en) * 2016-05-20 2017-11-23 Hyundai Motor Company Double-sided cooler for cooling both sides of electronic component
US20190041140A1 (en) * 2015-08-25 2019-02-07 Valeo Systemes Thermiques Heat exchanger
US20190186431A1 (en) * 2017-12-14 2019-06-20 Hanon Systems Tube, in particular a flat tube for an exhaust gas cooler and exhaust gas cooler

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3052883T3 (pl) * 2013-09-30 2019-01-31 Arçelik Anonim Sirketi Wymiennik ciepła z wymuszoną konwekcją dla urządzenia chłodzącego
CN104061683A (zh) * 2014-06-14 2014-09-24 广东万和新电气股份有限公司 燃气锅炉铸铝换热器
CN105352181A (zh) * 2015-11-13 2016-02-24 任能 一种改进的冷凝式燃气暖浴两用换热器

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US4700774A (en) * 1981-10-23 1987-10-20 Sueddeutsche Kuehlerfabrik Julius F. Behr. Gmbh Oil cooler
US5318114A (en) * 1991-09-05 1994-06-07 Sanden Corporation Multi-layered type heat exchanger
US5697433A (en) * 1993-12-21 1997-12-16 Zexel Corporation Heat-exchanger conduit for tube-stacking type heat exchanger and method of manufacturing it
US20010018970A1 (en) * 2000-03-06 2001-09-06 Koji Nakado Heat exchanger
US20050247444A1 (en) * 2002-07-09 2005-11-10 Hajime Ohata Tube for heat exchanger

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JPS5254062Y2 (de) * 1972-07-06 1977-12-07
JPS4950857U (de) * 1972-08-07 1974-05-04
JPS4950857A (de) * 1972-09-18 1974-05-17
JPS5730582U (de) * 1980-07-30 1982-02-17
JPS5959688U (ja) * 1982-10-12 1984-04-18 株式会社デンソー 熱交換器
JPS5970180U (ja) * 1982-11-01 1984-05-12 昭和アルミニウム株式会社 蒸発器
JP2001027484A (ja) 1999-07-15 2001-01-30 Zexel Valeo Climate Control Corp サーペンタイン型熱交換器
AU2002366473A1 (en) * 2001-12-17 2003-06-30 Showa Denko K.K. Heat exchanger and process for fabricating same
US20040099408A1 (en) * 2002-11-26 2004-05-27 Shabtay Yoram Leon Interconnected microchannel tube

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
US4700774A (en) * 1981-10-23 1987-10-20 Sueddeutsche Kuehlerfabrik Julius F. Behr. Gmbh Oil cooler
US5318114A (en) * 1991-09-05 1994-06-07 Sanden Corporation Multi-layered type heat exchanger
US5697433A (en) * 1993-12-21 1997-12-16 Zexel Corporation Heat-exchanger conduit for tube-stacking type heat exchanger and method of manufacturing it
US20010018970A1 (en) * 2000-03-06 2001-09-06 Koji Nakado Heat exchanger
US20050247444A1 (en) * 2002-07-09 2005-11-10 Hajime Ohata Tube for heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150129180A1 (en) * 2012-06-08 2015-05-14 Fraunhofer-Gesellschaft zur Foerderung der antgewandten Forschung e.V. Heat exchanger system, method for producing same, and fluid distribution element
USD763417S1 (en) * 2012-08-02 2016-08-09 Mitsubishi Electric Corporation Heat exchanger tube
US20190041140A1 (en) * 2015-08-25 2019-02-07 Valeo Systemes Thermiques Heat exchanger
US20170336152A1 (en) * 2016-05-20 2017-11-23 Hyundai Motor Company Double-sided cooler for cooling both sides of electronic component
US20190186431A1 (en) * 2017-12-14 2019-06-20 Hanon Systems Tube, in particular a flat tube for an exhaust gas cooler and exhaust gas cooler

Also Published As

Publication number Publication date
EP2722628A1 (de) 2014-04-23
CN103608636A (zh) 2014-02-26
JP5663413B2 (ja) 2015-02-04
WO2012172928A1 (ja) 2012-12-20
EP2722628A4 (de) 2015-06-03
JP2013002753A (ja) 2013-01-07

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