US20210239411A1 - Heat exchanger plate for a heat exchanger - Google Patents

Heat exchanger plate for a heat exchanger Download PDF

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Publication number
US20210239411A1
US20210239411A1 US17/163,315 US202117163315A US2021239411A1 US 20210239411 A1 US20210239411 A1 US 20210239411A1 US 202117163315 A US202117163315 A US 202117163315A US 2021239411 A1 US2021239411 A1 US 2021239411A1
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US
United States
Prior art keywords
heat exchanger
opening
normal direction
plate
opening edge
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
US17/163,315
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English (en)
Inventor
Andreas Draenkow
Thomas Merten
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of US20210239411A1 publication Critical patent/US20210239411A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/10—Arrangements for sealing the margins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • 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
    • F28F2275/04—Fastening; Joining by brazing
    • 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
    • F28F2275/06—Fastening; Joining by welding

Definitions

  • the invention relates to a heat exchanger plate for a heat exchanger, in particular for a stacked-plate heat exchanger or for a plate heat exchanger.
  • the invention further relates to a heat exchanger, in particular a stacked-plate heat exchanger or a plate heat exchanger, comprising heat exchanger plates of this type.
  • Heat exchangers which are embodied as stacked-plate or plate heat exchangers, serve to transfer heat between two fluids, which are guided through the heat exchanger in a fluidically separated manner.
  • first fluid ducts for being flown through with a first fluid and several second fluid ducts for being flown through with a second fluid, fluidically separated from the first fluid, are typically formed in the heat exchanger.
  • the formation of the fluid ducts takes place with the help of several plates, which are stacked one on top of the other along a stack direction and are thereby arranged at a distance from one another.
  • the spaces between two plates, which are adjacent in the stack direction alternately form first and second fluid ducts along the stack direction.
  • a second fluid duct which is arranged between two first fluid ducts in the stack direction, is fluidically bridged in this way, i.e. the first fluid can be distributed to the first fluid ducts across the second fluid ducts and, after flowing through them, can be accumulated again from them. The same applies accordingly for the second fluid ducts and the second fluid.
  • a further embodiment of the present invention is to provide a heat exchanger comprising a heat exchanger plate of this type.
  • Such a geometry of the opening edge or of the through opening surrounded by the opening edge, respectively, makes it possible to connect the opening edge directly to an adjacent heat exchanger plate by means of a substance-to-substance bond in a simple way.
  • a heat exchanger comprising several such heat exchanger plates, which are stacked one on top of the other along a stack direction, quasi any arrangements of above-mentioned first and second fluid ducts can thus be created, which are formed between two respective heat exchanger plates, which are adjacent in the stack direction.
  • a heat exchanger plate according to the invention for a heat exchanger in particular for a stacked-plate heat exchanger or for a plate heat exchanger comprises a plate bottom.
  • a plate collar can protrude away from an outer edge of the plate bottom at an angle on the outside in a completely circumferential manner.
  • the plate bottom and the plate collar are formed integrally and from the same material.
  • the position of a bottom plane is specified by at least one through opening, which is present in the plate bottom.
  • An opening cross section of the through opening in the plate bottom thus extends in the bottom plane. This through opening is surrounded by an opening edge, which is formed by the heat exchanger plate and which protrudes laterally away from the plate bottom, is preferably bent over.
  • the opening edge and the plate bottom are preferably also formed integrally and from the same material, i.e. the opening edge and the plate bottom are preferably integrally molded on one another.
  • the opening edge is formed such that a diameter of the through opening increases away from the bottom plane along a normal direction perpendicular to the bottom plane at least in some sections, so that the diameter of the through opening has a larger value in at least one distance to the bottom plane, which is predetermined with respect to the normal direction, than in the bottom plane.
  • the opening edge preferably tapers, particularly preferably at least in some sections, towards the opening plane. It is ensured in this way that sufficient surface area for connecting by means of a substance-to-substance bond, in particular for soldering or welding, the heat exchanger plate to an adjacent heat exchanger plate of a heat exchanger is available at the opening edge.
  • the opening edge extends along the normal direction from the bottom plane to an end plane, which runs parallel to the bottom plane.
  • the diameter of the through opening is larger in the end plane than in the bottom plane.
  • the diameter in the end plane can particularly preferably have a maximum value.
  • an opening cross section of the through opening has at least the same value, preferably a larger value, in the end plane than in the bottom plane.
  • the diameter and/or the opening cross section of the through opening can initially decrease and subsequently increase again along the normal direction.
  • the geometry of the opening edge which is significant for the invention, can thus be realized by simply bending over the opening edge.
  • the opening edge can advantageously be bent over to the outside by at least 90°, preferably by at least 180°.
  • At least one end section of the plate bottom, which faces away from the plate bottom thus extends parallel to the plate bottom, so that the end section can be soldered or welded in a planar manner to an adjacent heat exchanger plate.
  • An end section, which faces away from the plate bottom thus particularly preferably extends parallel to the bottom plane.
  • an arrangement of the end section at an acute angle to the bottom plane is also conceivable. This variation can be technically implemented particularly easily because an exact alignment of the end section parallel to the bottom plane or to the plate bottom, respectively, can be forgone.
  • the opening edge is formed as dome, which circumferentially surrounds the through opening, preferably completely.
  • the dome can be used for the fluid-tight separation of the through opening, which is surrounded by the dome, with respect to the region, which is arranged radially outside of the dome, when the heat exchanger plate is installed in a heat exchanger and is soldered or welded to adjacent heat exchanger plates.
  • the opening edge is formed to be curved in a longitudinal section along the normal direction.
  • the through opening and thus also the opening edge, in a top view onto the heat exchanger plate in the normal direction has a round, preferably an oval or circular geometry.
  • a round preferably an oval or circular geometry.
  • other geometries can also be realized in variations of the example.
  • the invention further relates to a heat exchanger, which is formed as stacked-plate heat exchanger or as plate heat exchanger.
  • the heat exchanger comprises a plurality of plates, which are stacked one on top of the other along a normal direction, wherein two respective plates, which are adjacent in the normal direction, limit a fluid path. At least one of the plates is an above-described heat exchanger plate according to the invention. The above-described advantages of the heat exchanger plate thus also transfer to the heat exchanger according to the invention.
  • the opening edge of the through opening of the heat exchanger plate is connected by means of a substance-to-substance bond by means of a soldered connection or welded connection to the plate, which is adjacent in the normal direction and which can be, but does not have to be, a heat exchanger plate according to the invention.
  • At least two, preferably several, plates, which are adjacent in the normal direction, are in each case formed by means of a heat exchanger plate according to the invention.
  • a plate which differs from a heat exchanger plate according to the invention in that the through opening is not surrounded by a laterally protruding opening edge, is arranged in the stack direction between two plates, which are in each case formed as heat exchanger plate according to the invention.
  • At least two of the plates which are adjacent in the normal direction, abut against one another in the region of their through openings transversely to the normal direction without overlapping, in particular without positive connection.
  • These at least two plates are preferably formed by heat exchanger plates according to the invention in terms of the above description.
  • the position tolerances of the apertures or of the opening edges, respectively, which are to be complied with, of each plate can thus be increased in an advantageous manner, because even in the case of a slight offset of the adjacent plates transversely to the normal direction, an abutment of the plates against one another, which is sufficient for the fastening of the plates to one another, can still be attained. This has a lowering effect on the costs for the production of the plates and on the assembly of the heat exchanger.
  • each plate advantageously abuts against the plates adjacent to it transversely to the normal direction without overlapping, in particular without positive connection.
  • FIG. 1 shows an example of a conventional heat exchanger plate, which is known from the prior art, in perspective illustration,
  • FIG. 2 shows the heat exchanger plate of FIG. 1 in the region of a through opening, which is formed in the plate bottom of the heat exchanger plate and which is surrounded by a dome,
  • FIG. 3 shows a partial view of a conventional heat exchanger comprising several conventional heat exchanger plates, which are stacked one on top of the other, according to FIGS. 1 and 2 ,
  • FIG. 4 shows a partial illustration of a heat exchanger plate according to the invention in the region of the through opening, which is formed in the plate bottom,
  • FIG. 5 shows an alternative illustration of the heat exchanger plate, which supplements FIG. 4 ,
  • FIG. 6 shows a partial view of a heat exchanger according to the invention comprising several heat exchanger plates according to the invention, which are stacked one on top of the other, according to FIGS. 4 and 5 ,
  • FIG. 7 shows a variation of the heat exchanger according to FIG. 6 .
  • FIG. 1 illustrates an example of a conventional heat exchanger plate 1 ′, which is known from the prior art.
  • the conventional heat exchanger plate 1 ′ comprises a plate bottom 2 ′, which is circumferentially surrounded by a plate collar 3 ′, which protrudes at an angle.
  • four through openings 4 a ′, 4 b ′, 4 c ′, 4 d ′ are provided in the plate bottom 2 ′.
  • the two through openings 4 a ′, 4 b ′ are surrounded in a completely circumferential manner by a dome-like opening edge 5 ′, which protrudes laterally away from the plate bottom 2 ′.
  • the two other through openings 4 c ′, 4 d ′ do not have a protruding opening edge 5 ′ of this type.
  • the through openings 4 a ′ to 4 d ′ and thus also the opening edges 5 ′ can have a round, in particular an oval, or circular geometry or edge contour, respectively. It goes without saying, however, that other geometries are also conceivable in non-illustrated variations.
  • FIG. 2 shows the conventional heat exchanger plate 1 ′ in the region of the through opening 4 a ′.
  • the opening edge 5 ′ in the case of the conventional heat exchanger plate 1 ′ is formed such that a diameter D′ of the through opening 4 a ′, which is measured along a normal direction R′ perpendicular to the bottom plane BE′, decreases, starting at the bottom plane BE′.
  • the opening edge 5 ′ thus limits the through opening 4 a ′ along the normal direction R′.
  • the diameter D′ of the through opening 4 a ′ which is measured along the normal direction R′ at the distance A′ from the bottom plane BE′, thereby has a smaller value d EE ′ there than in the bottom plane BE′ itself, in which the value is d BE ′.
  • d BE ′>d EE ′ The following thus applies: d BE ′>d EE ′.
  • first fluid ducts 51 a ′ and, fluidically separated from the latter, second fluid ducts 51 b ′ are alternately formed along the stack direction S′ between the individual heat exchanger plates 1 ′.
  • a first fluid F 1 ′ can thus flow through the first fluid ducts 51 a ′
  • a second fluid F 2 ′ can flow through the second fluid ducts 51 b ′ fluidically separately therefrom.
  • Two first fluid ducts 51 a ′ which are adjacent in the stack direction S′, are connected to one another by means of the two through openings 4 a ′, 4 c ′.
  • the second fluid duct 51 b ′ which is in each case arranged in the stack direction S′ between two first fluid ducts 51 a ′, is thus quasi fluidically “bridged” by means of the opening edge 5 ′.
  • FIGS. 4 and 5 which, analogously to FIG. 2 , shows a heat exchanger plate 1 according to the invention in an exemplary manner in the region of the through opening 4 a , which is formed in the plate bottom 2 .
  • the through opening 4 a as well as the opening edge 5 limiting this through opening 4 a extend along the normal direction R from the bottom plane BE to an end plane EE, which is arranged at a predetermined distance A parallel to the bottom plane BE.
  • the heat exchanger plate 1 according to the invention differs from the conventional heat exchanger plate 1 in the geometry of the opening edge 5 , which surrounds the through opening 4 a (or 4 b , respectively).
  • the opening edge 5 in the case of the heat exchanger plate 1 according to the invention compared to the conventional heat exchanger 50 ′ known from the prior art, is formed such that the diameter D, measured in a direction perpendicular to the normal direction R, and also an opening cross section Q of the through opening 4 a , measured in a plane perpendicular to the normal direction R, initially decrease and subsequently increase again along the normal direction R.
  • the diameter D of the through opening 4 a thus increases at least in some sections along the normal direction R away from the bottom plane BE.
  • the diameter D of the through opening 4 a has a larger value d EE than in the bottom plane BE itself, where the diameter D has a value d BE .
  • d EE >d BE thus applies for at least a predetermined distance A.
  • the edge section 6 which is arranged in the end plane EE, is the end section 7 of the opening edge 5 , which faces away from the bottom plane.
  • the value q EE of the opening cross section Q of the through opening 4 a in the end plane EE is larger than a value q BE of the opening cross section Q of the through opening 4 a in the bottom plane BE.
  • the opening edge 5 is for this purpose formed to be bent, in particular in a longitudinal section along the normal direction R. As shown in FIGS. 4 and 5 , the opening edge 5 can be bent over to the outside by 180°, starting at the plate bottom 2 .
  • the end section 7 of the heat exchanger plate 1 which faces away from the plate bottom 2 or from the bottom plane BE, respectively, extends parallel to the bottom plane BE, but can be arranged at an acute angle ⁇ to the bottom plane BE in an alternative variation, which is suggested by means of dashes and which is identified with “Z”.
  • FIG. 6 shows a partial illustration of a heat exchanger 50 according to the invention comprising several heat exchanger plates 1 according to the invention, which are stacked one on top of the other in the stack direction S.
  • FIG. 6 shows the heat exchanger 1 in the region of the through openings 4 a of the heat exchanger plates 1 , which are stacked one on top of the other.
  • the stack direction S of the heat exchanger 50 is identical to the normal direction R of the heat exchanger plates 1 . It can be seen that a continuous fluid duct 52 c , which runs in the stack direction S and through which the first fluid F 1 can flow, is formed by the through openings 4 a , which are formed so as to follow one another in the stack direction S.
  • the fluid duct 52 c thus forms a so-called “immersion nozzle” within the heat exchanger 50 .
  • Several second fluid ducts, which follow one another directly in the stack direction S and through which the second fluid F 2 can flow, can be fluidically “bridged” in this way.
  • FIG. 7 shows a variation of the example of FIG. 6 .
  • the heat exchanger 50 comprises several heat exchanger plates 1 comprising the opening edge 5 , which is significant for the invention, as well as further heat exchanger plates 1 *, in the case of which the through openings 4 a *, which are present in the plate bottom 2 *, do not have a laterally protruding opening edge, are thus not surrounded by a dome.
  • the through openings 4 a * which are present in the plate bottom 2 *, do not have a laterally protruding opening edge, are thus not surrounded by a dome.
  • first and second fluid ducts 51 a , 51 b are realized in this way, in the case of which not one, but two second fluid ducts 51 b are arranged in the stack direction S between two first fluid ducts 51 a , adjacent to one another in the stack direction S.
  • This configuration is attained in that a heat exchanger plate 1 * without dome in each case follows two heat exchanger plates 1 according to the invention comprising a bent-over opening edge 5 or dome, respectively, in the stack direction A.
  • the abutment of the plates 1 , 1 * which is required for the fastening of the plates 1 , 1 * to one another along the normal direction R, does not require an exact alignment of the apertures 4 a along the normal direction R.
  • this construction allows that the apertures 4 a of adjacent plates 1 , 1 * can be arranged so as not to be aligned relative to one another transversely to the normal direction R, because specifically no overlapping of these adjacent plates 1 , 1 * is present transversely to the normal direction R in the region of the apertures 4 a .
  • the tolerances of the positioning of the apertures 4 a in the respective plate 1 , 1 *, which are to be complied with, can thus be comparatively rough.
  • each plate 1 , 1 * abuts against its adjacent plates 1 , 1 * in the region of the through openings 4 a transversely to the normal direction R without overlapping, for example without positive connection.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US17/163,315 2020-01-30 2021-01-29 Heat exchanger plate for a heat exchanger Abandoned US20210239411A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020201131.1A DE102020201131A1 (de) 2020-01-30 2020-01-30 Wärmeübertrager-Platte für einen Wärmeübertrager, insbesondere für einen Stapelscheiben-Wärmeübertrager oder für einen Platten-Wärmeübertrager
DE102020201131.1 2020-01-30

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US20210239411A1 true US20210239411A1 (en) 2021-08-05

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ID=76853893

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US17/163,315 Abandoned US20210239411A1 (en) 2020-01-30 2021-01-29 Heat exchanger plate for a heat exchanger

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US (1) US20210239411A1 (de)
CN (1) CN113203304A (de)
DE (1) DE102020201131A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021133073A1 (de) 2021-12-14 2023-06-15 Mahle International Gmbh Stapelscheiben-Wärmeübertrager

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5794691A (en) * 1995-07-10 1998-08-18 Long Manufacturing Ltd. Plate heat exchanger with reinforced input/output manifolds
US6340054B1 (en) * 1999-08-19 2002-01-22 Behr Gmbh & Co. Plate heat exchanger
US20080257536A1 (en) * 2004-01-23 2008-10-23 Behr Gmbh & Co. Kg Heat Exchanger, Especially Oil/Coolant Cooler
US20150292803A1 (en) * 2012-11-07 2015-10-15 Alfa Laval Corporate Ab Method of making a plate package for a plate heat exchanger
WO2017203869A1 (ja) * 2016-05-23 2017-11-30 株式会社デンソー 熱交換器

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DE9218615U1 (de) 1991-11-29 1994-10-13 Long Mfg Ltd Vollrippen-Evaporatorkern
DE4234093A1 (de) * 1992-10-09 1994-04-14 Siemens Ag Bauelement zum Einbau in eine verfahrenstechnische Einrichtung
JP2001099585A (ja) * 1999-09-30 2001-04-13 Denso Corp アルミニウム製熱交換器
JP2002168591A (ja) 2000-11-29 2002-06-14 Denso Corp アルミニウム製熱交換器
CA2328312C (en) 2000-12-14 2010-12-07 Herbert Rittberger Heat exchanger
JP2006010102A (ja) 2004-06-22 2006-01-12 Sanden Corp 積層型熱交換器およびその製造方法
JP2009036468A (ja) 2007-08-02 2009-02-19 Denso Corp ハウジングレス式熱交換器
US20110024095A1 (en) * 2009-07-30 2011-02-03 Mark Kozdras Heat Exchanger with End Plate Providing Mounting Flange
DE102014201456A1 (de) * 2014-01-28 2015-07-30 MAHLE Behr GmbH & Co. KG Stapelscheibenwärmeübertrager
DE102015220579A1 (de) * 2015-10-21 2017-04-27 Mahle International Gmbh Stapelscheiben-Wärmeübertrager
DE102018206574A1 (de) * 2018-04-27 2019-10-31 Mahle International Gmbh Stapelscheibenwärmetauscher

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5794691A (en) * 1995-07-10 1998-08-18 Long Manufacturing Ltd. Plate heat exchanger with reinforced input/output manifolds
US6340054B1 (en) * 1999-08-19 2002-01-22 Behr Gmbh & Co. Plate heat exchanger
US20080257536A1 (en) * 2004-01-23 2008-10-23 Behr Gmbh & Co. Kg Heat Exchanger, Especially Oil/Coolant Cooler
US20150292803A1 (en) * 2012-11-07 2015-10-15 Alfa Laval Corporate Ab Method of making a plate package for a plate heat exchanger
WO2017203869A1 (ja) * 2016-05-23 2017-11-30 株式会社デンソー 熱交換器
US11143457B2 (en) * 2016-05-23 2021-10-12 Denso Corporation Heat exchanger

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DE102020201131A1 (de) 2021-08-05
CN113203304A (zh) 2021-08-03

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