JPH07121451B2 - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
JPH07121451B2
JPH07121451B2 JP5021288A JP5021288A JPH07121451B2 JP H07121451 B2 JPH07121451 B2 JP H07121451B2 JP 5021288 A JP5021288 A JP 5021288A JP 5021288 A JP5021288 A JP 5021288A JP H07121451 B2 JPH07121451 B2 JP H07121451B2
Authority
JP
Japan
Prior art keywords
tank
end plate
section
heat exchanger
partition
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.)
Expired - Lifetime
Application number
JP5021288A
Other languages
Japanese (ja)
Other versions
JPH01224163A (en
Inventor
美樹 中村
Original Assignee
株式会社ゼクセル
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 株式会社ゼクセル filed Critical 株式会社ゼクセル
Priority to JP5021288A priority Critical patent/JPH07121451B2/en
Publication of JPH01224163A publication Critical patent/JPH01224163A/en
Publication of JPH07121451B2 publication Critical patent/JPH07121451B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00Heat-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
    • F28D1/02Heat-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
    • F28D1/04Heat-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
    • F28D1/053Heat-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 straight
    • F28D1/0535Heat-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 straight the conduits having a non-circular cross-section
    • F28D1/05366Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05391Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02Header boxes; End plates
    • F28F9/0202Header boxes having their inner space divided by partitions
    • F28F9/0204Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0214Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only longitudinal partitions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2220/00Closure means, e.g. end caps on header boxes or plugs on conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はコルゲートフィンとチューブを組み合わせた型
式の熱交換器に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a heat exchanger of a type in which a corrugated fin and a tube are combined.

[従来の技術] 従来のコルゲートフィンとチューブを組み合わせた型式
の熱交換器のエンドプレートとタンクとの接合に関して
次のような構成が開示されている。特開昭58−28054号
公報において、冷却水が流入する入口パイプを接続した
入口側タンク部と、冷却水が流入する出口パイプを接続
した出口タンク部と、入口側タンク部と出口側タンク部
とを隔離する仕切り部とを有し、樹脂等の材料で出来た
タンク本体とエンドプレートとをタンクシール用のO−
リングを介してカシメ等により結合して成るものが、特
開昭58−179797号公報において、アルミニウム製のエン
ドプレートがカシメ強度を確保するためには、エンドプ
レートの板厚を大きくしなければならないが、板厚を大
きくるとカシメ加工性が悪化する。従ってアルミニウム
製のエンドプレートとは別に強度の優れている鉄製の補
助板を用い、この補助板によってエンドプレートと樹脂
タンクとを弾性シール部材を介してカシメ結合すること
により、カシメ強度とカシメ加工性の両方を改善し、し
かも補助板とエンドプレートとの間に電食防止材を介在
することにより、アルミニウムと鉄の接触による電食を
防止するものが、更に、特開昭61−44296号公報におい
ては、(第6図参照)シートメタル31の折曲部32に係合
してシートメタル31を覆い、かつフィン33の端部に係合
するプレート34を、シートメタル31とフィン33の間に配
設し、前記シートメタル31の折曲部32は頂部が円弧状の
断面U字形であり、前記プレート34の周辺部に前記シー
トメタル31の折曲部32の頂部の円弧状部分の外周内側と
接するリブ35を有し、前記プレート34は前記シートメタ
ル31のほぼ全体を覆い、チューブ36の全てが挿入され、
前記プレート34は前記シートメタル31のうちコア面の一
部を覆い、前記チューブ36のうち一部のチューブのみが
挿入され、前記折曲部32の断面U字形の内側にタンク37
の端部38を係合し一体ろう付けしたものである。
[Prior Art] Regarding the joining of the end plate and the tank of the heat exchanger of the type in which the conventional corrugated fins and tubes are combined, the following configuration is disclosed. In Japanese Patent Application Laid-Open No. 58-28054, an inlet side tank portion connected with an inlet pipe into which cooling water flows, an outlet tank portion connected with an outlet pipe into which cooling water flows, an inlet side tank portion and an outlet side tank portion And a partition part for separating the tank body and the end plate made of a material such as a resin, for the tank seal O-
In Japanese Patent Application Laid-Open No. 58-179797, the end plate made of aluminum must have a large thickness in order to secure the crimping strength. However, when the plate thickness is increased, the crimping workability deteriorates. Therefore, in addition to the aluminum end plate, an iron auxiliary plate with excellent strength is used, and by this auxiliary plate, the end plate and the resin tank are caulked with each other via the elastic seal member, so that the caulking strength and caulking workability are improved. In order to prevent both of the above, and to prevent electrolytic corrosion due to contact between aluminum and iron by interposing an electrolytic corrosion preventing material between the auxiliary plate and the end plate, there is further disclosed in JP-A-61-44296. (See FIG. 6), the plate 34 that engages with the bent portion 32 of the sheet metal 31 to cover the sheet metal 31 and engages with the end of the fin 33 is provided between the sheet metal 31 and the fin 33. The bent portion 32 of the sheet metal 31 has a U-shaped cross section with an arcuate top portion, and the outer periphery of the arcuate portion of the top portion of the bent portion 32 of the sheet metal 31 is around the plate 34. Rib that contacts the inside 35, the plate 34 covers almost all of the sheet metal 31, and all of the tube 36 is inserted,
The plate 34 covers a part of the core surface of the sheet metal 31, only a part of the tubes 36 is inserted, and the tank 37 is provided inside the bent portion 32 having a U-shaped cross section.
The end portions 38 are engaged and integrally brazed.

[考案が解決しようとする課題] しかし、特開昭58−28054号公報および特開昭58−17979
7号公報においては、エンドプレートとタンクとを弾性
シール部材を介してカシメ結合しているが、年月の経過
にともない、永久変形が漸増し、シール部材をカシメ保
持することが困難になるとともに、弾性シール部材の老
化によりシール性が不完全になり内部の流体の漏洩を引
きおこす虞れがある。
[Problems to be solved by the invention] However, JP-A-58-28054 and JP-A-58-17979
In No. 7, the end plate and the tank are caulked with each other via an elastic seal member, but with the passage of time, permanent deformation gradually increases, and it becomes difficult to caulk and hold the seal member. Due to the aging of the elastic seal member, the sealing performance may be incomplete and the fluid inside may leak.

また、特開昭61−44296号公報においては、全ての部品
が金属部材よりなりろう付けにより結合しているので、
カシメ力が低下したりシール部材の老化などはないが、
結合が全てろう溶着でシール性、および流体の発生する
力などをろう材の強度とろう付け精度に依存しなければ
ならず信頼性に不安を感じるという問題点がある。
Further, in JP-A-61-44296, since all parts are made of metal members and are joined by brazing,
Although the caulking force does not decrease and the sealing member does not age,
There is a problem in that reliability is worried because the bonding is entirely by brazing and the sealing property and the force generated by the fluid have to depend on the strength and brazing accuracy of the brazing material.

本発明は、従来の技術の有するこのような問題点に鑑み
てなされたものであり、その目的とするところは、タン
クをアルミニウム材の押し出し型材より製作し、前記タ
ンクの溝にエンドプレートを挿入しチューブ、フィン、
エンドプレート、タンク、キャップを一体ろう付けする
熱交換器を提供しようとするものである。
The present invention has been made in view of the above problems of the prior art, and an object of the present invention is to manufacture a tank from an extruded die member of aluminum material and insert an end plate into the groove of the tank. Tube, fins,
It is intended to provide a heat exchanger in which an end plate, a tank and a cap are integrally brazed.

[課題を解決するための手段] 上記目的を達成するために、本発明における熱交換器
は、アルミニウム押し出し型材にて形成した溝を有する
断面がE字型の第1のタンクとアルミニウム押し出し型
材にて形成した溝を有する断面がコ字型の第2のタンク
をコア部のエンドプレートにそれぞれ組み付け、第1の
タンクと第2のタンクにキャップをそれぞれ嵌入して炉
中にて一体ろう付けしてなるものである。
[Means for Solving the Problems] In order to achieve the above object, a heat exchanger according to the present invention is provided with a first tank having an E-shaped cross section having a groove formed of an aluminum extrusion mold material and an aluminum extrusion mold material. Assemble the second tanks with U-shaped cross-section with the formed grooves to the end plates of the core part, insert the caps into the first tank and the second tank, and braze them integrally in the furnace. It will be.

[作用] 第1のタンクを入口側タンク部と出口側タンク部を隔離
する仕切り部とエンドプレートを嵌入する溝を設けた押
し出し型材で形成したので仕切り部の端部とエンドプレ
ートの表面とでろう材によるフィレットを形成し入口側
タンクと出口側タンクの気密を確実にするとともに、溝
とエンドプレートの接合強度を強固にする。
[Operation] Since the first tank is formed by the extruded mold member provided with the partition for separating the inlet side tank part and the outlet side tank part and the groove for fitting the end plate, the end of the partition part and the surface of the end plate are formed. A fillet made of a brazing material is formed to ensure airtightness between the inlet side tank and the outlet side tank and to strengthen the joint strength between the groove and the end plate.

[実施の構成および作用] 実施例について図面を参照して説明する。[Configuration and Operation of Embodiment] An embodiment will be described with reference to the drawings.

第1図〜第4図において、アルミニウム材にろう材がク
ラッドされた電縫管材より成る扁平チューブ1とコルゲ
ートフィン2とアルミニウム材の片側又は両側にろう材
がクラッドされ、扁平チューブ1が嵌入される複数の穴
を有するエンドプレート3より構成されるコア部4の一
端には、前記エンドプレート3の一端を嵌入する溝5を
有した入口側タンク部6とエンドプレート3の他端を嵌
入する溝7を有した出口側タンク部8とを隔離する仕切
り部9とが押し出し型材にて一体に形成された断面がE
字型の第1のタンク10が、前記溝5、7にエンドプレー
ト3を嵌入されることにより組み付けられる。
1 to 4, a flat tube 1 made of an electric resistance welded pipe in which a brazing material is clad with an aluminum material, a corrugated fin 2 and a brazing material are clad on one side or both sides of the aluminum material, and the flat tube 1 is inserted. The inlet side tank portion 6 having the groove 5 into which one end of the end plate 3 is fitted and the other end of the end plate 3 are fitted into one end of the core portion 4 formed of the end plate 3 having a plurality of holes. A cross section in which a partition portion 9 for separating the outlet side tank portion 8 having the groove 7 and the partition portion 9 is integrally formed by an extrusion mold member has a cross section E.
The V-shaped first tank 10 is assembled by inserting the end plate 3 into the grooves 5 and 7.

このとき、仕切り部9の端部11がエンドプレート3の表
面に当接するように形成されている。
At this time, the end 11 of the partition 9 is formed so as to contact the surface of the end plate 3.

一方コア部4の他端には、エンドプレート3を嵌入する
溝12、13を有して押し出し型材にて形成された断面がコ
字型の第2のタンク14が第1のタンク10と同じ方法で組
付けられる。
On the other hand, at the other end of the core portion 4, the second tank 14 having grooves 12, 13 into which the end plate 3 is fitted and formed by an extrusion mold member and having a U-shaped cross section is the same as the first tank 10. Assembled in a fashion.

また、第1のタンク10の両端にはアルミニウム材のブレ
ージングシートをプレス加工などで成形し突部15、16を
有したキャップ17を、第2のタンク14の両端には、同じ
く突部18を有したキャップ19をそれぞれ嵌入し、治具に
て圧入等で固定し炉中にて一体にろう付け接合される。
Further, caps 17 having protrusions 15 and 16 formed by pressing a brazing sheet of aluminum material are formed at both ends of the first tank 10, and protrusions 18 are also formed at both ends of the second tank 14. Each of the caps 19 has been inserted, fixed by press fitting or the like with a jig, and integrally brazed and joined in a furnace.

尚、入口側タンク部6には流体の流入する入口パイプ20
が、出口側タンク部14には流体の流出する出口パイプ21
が、それぞれろう付けされる。
In addition, the inlet side tank portion 6 is provided with an inlet pipe 20 through which a fluid flows.
However, there is an outlet pipe 21 through which the fluid flows out in the outlet side tank section 14.
Are brazed respectively.

上述のようにそれぞれの部品を組み付け治具で固定し炉
中にて一体にろう付けすると、仕切り部9の端部11とエ
ンドプレート3の表面でろう材によるフィレット22、23
が形成され入口側タンク部6と出口側タンク部8とを完
全に隔離し気密を確保すると共に、キャップ17の突部1
5、16の表面がタンク6、8の内面の一部と、エンドプ
レート3の表面、仕切り部9の側面とそれぞれが対応す
る面と当接しており、面により接合されるので接合力が
つよくなり、キャップ19の突部18についても同じように
面により接合されるので接合力が強くなる。
As described above, when the respective parts are fixed by the assembly jig and brazed together in the furnace, the fillets 22, 23 made of the brazing material are formed on the end 11 of the partition 9 and the surface of the end plate 3.
Is formed, the inlet side tank portion 6 and the outlet side tank portion 8 are completely isolated from each other to ensure airtightness, and the protrusion 1 of the cap 17 is formed.
The surfaces of 5 and 16 are in contact with a part of the inner surfaces of the tanks 6 and 8, the surface of the end plate 3 and the side surface of the partitioning portion 9 are in contact with each other. Since the projections 18 of the cap 19 are also joined by the surfaces in the same manner, the joining force becomes stronger.

第5図においては、第1のタンク10の上面に開孔24を設
け、リング状のブレージングシート25を嵌入した入口パ
イプ20を組み付け一体ろう付けしたものであり、出口パ
イプ21についても同様である。
In FIG. 5, an opening 24 is provided in the upper surface of the first tank 10, an inlet pipe 20 in which a ring-shaped brazing sheet 25 is fitted is assembled and integrally brazed, and the same applies to the outlet pipe 21. .

[発明の効果] 本発明は、以上説明したように構成されているので、以
下に記載されるような効果を奏する。
[Advantages of the Invention] Since the present invention is configured as described above, it has the effects described below.

入口側タンク部と出口側タンク部との仕切り部、および
エンドプレートを嵌入する溝を押し出し型材で一体に成
形したので、部品点数の削減と、機械加工時間の大巾な
削減ができ、エンドプレートの加工も扁平チューブを嵌
入する穴の加工だけでよく加工時間の削減ができ、ま
た、ブレージングシートの使用場所をできるだけ少なく
したのでコスト低減に大きく貢献する。さらに、エンド
プレートをタンクに形成した溝に嵌入するため接合構造
が強固となり、耐久性の向上がはかれる。
The partition between the inlet and outlet tanks, and the groove into which the end plate is inserted are integrally molded with an extruded mold material, so the number of parts can be reduced and machining time can be greatly reduced. As for the processing, the processing time can be reduced simply by processing the hole into which the flat tube is inserted, and the brazing sheet is used in as few places as possible, which greatly contributes to cost reduction. Further, since the end plate is fitted into the groove formed in the tank, the joint structure becomes strong, and the durability is improved.

【図面の簡単な説明】 第1図は本発明の展開斜視図、第2図は同じく第1のタ
ンクの要部斜視図、第3図は同じく第2のタンクの要部
斜視図、第4図は第1のタンクの仕切り部とエンドプレ
ートで形成されるフィレットの説明図、第5図はタンク
へのパイプ組み付け断面図、第6図は従来例の要部断面
図。 1……チューブ、2……フィン、3……エンドプレー
ト、4……コア部、5、7、12、13……溝、6……入口
側タンク部、8……出口側タンク部、9……仕切り部、
10……第1のタンク、14……第2のタンク、17、19……
キャップ。
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of the present invention, FIG. 2 is a perspective view of an essential part of the first tank, and FIG. 3 is a perspective view of an essential part of the second tank. FIG. 5 is an explanatory view of a fillet formed by a partition part and an end plate of the first tank, FIG. 5 is a sectional view of a pipe assembled to the tank, and FIG. 6 is a sectional view of a main part of a conventional example. 1 ... Tube, 2 ... Fin, 3 ... End plate, 4 ... Core part, 5, 7, 12, 13 ... Groove, 6 ... Inlet side tank part, 8 ... Outlet side tank part, 9 ...... The partition section,
10 …… First tank, 14 …… Second tank, 17, 19 ……
cap.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】2つのタンク(10、14)と、このタンク
(10、14)に接合されるエンドプレート(3)に多数の
チューブ(1)とフィン(2)を接合して成るコア部
(4)を有するコルゲートフィンタイプの熱交換器にお
いて、アルミニウム押し出し型材で形成した、溝(5、
7)及び入口側タンク部(6)と出口側タンク部(8)
を構成する仕切り部(9)を有した断面E字型の第1の
タンク(10)とアルミニウム押し出し型材で形成した溝
(12、13)を有する断面コ字型の第2のタンク(14)を
コア部(4)のろう材をクラッドしたエンドプレート
(3)にそれぞれ組み付け、第1のタンク(10)と第2
のタンク(14)のそれぞれの両端にはろう材をクラッド
したキャップ(17、19)をそれぞれ嵌入し炉中にて一体
にろう付けした熱交換器。
1. A core portion comprising a plurality of tubes (1) and fins (2) joined to two tanks (10, 14) and an end plate (3) joined to the tanks (10, 14). In the corrugated fin type heat exchanger having (4), the groove (5,
7) and inlet side tank section (6) and outlet side tank section (8)
The first tank (10) having an E-shaped cross section having a partition (9) constituting the second tank and the second tank (14) having a U-shaped cross section having the grooves (12, 13) formed of an aluminum extrusion mold material. To the end plate (3) clad with the brazing material of the core part (4) respectively, and the first tank (10) and the second tank (10)
A heat exchanger in which caps (17, 19) clad with brazing filler metal are inserted into both ends of each tank (14) and brazed together in a furnace.
JP5021288A 1988-03-03 1988-03-03 Heat exchanger Expired - Lifetime JPH07121451B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5021288A JPH07121451B2 (en) 1988-03-03 1988-03-03 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5021288A JPH07121451B2 (en) 1988-03-03 1988-03-03 Heat exchanger

Publications (2)

Publication Number Publication Date
JPH01224163A JPH01224163A (en) 1989-09-07
JPH07121451B2 true JPH07121451B2 (en) 1995-12-25

Family

ID=12852786

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5021288A Expired - Lifetime JPH07121451B2 (en) 1988-03-03 1988-03-03 Heat exchanger

Country Status (1)

Country Link
JP (1) JPH07121451B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006200880A (en) * 2004-12-24 2006-08-03 Showa Denko Kk Heat exchanger

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0331068U (en) * 1989-08-02 1991-03-26
US5107926A (en) * 1990-04-03 1992-04-28 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US5152339A (en) * 1990-04-03 1992-10-06 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US6095239A (en) 1996-08-12 2000-08-01 Calsonic Kansei Corporation Integral-type heat exchanger
US20060011335A1 (en) * 2002-12-12 2006-01-19 Zexel Valeo Climate Control Corporation Tank for heat exchanger
JP4533726B2 (en) * 2003-11-14 2010-09-01 昭和電工株式会社 Evaporator and manufacturing method thereof
GB2411461A (en) * 2004-02-04 2005-08-31 Internat Radiators Ltd A Heat Exchanger and a Method of Forming a Heat Exchanger
EP2454548B1 (en) * 2009-07-17 2020-04-01 Lockheed Martin Corporation Heat exchanger and method for making

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006200880A (en) * 2004-12-24 2006-08-03 Showa Denko Kk Heat exchanger

Also Published As

Publication number Publication date
JPH01224163A (en) 1989-09-07

Similar Documents

Publication Publication Date Title
US5758721A (en) Heat exchanger header plate, a method for making it, and a heat exchanger having such a header plate
US5036914A (en) Vehicle-loaded parallel flow type heat exchanger
JP6796074B2 (en) Heat exchanger and its assembly method
JP6394202B2 (en) Heat exchanger
JP2006189206A (en) Heat exchanger
JP4602714B2 (en) Heat exchanger
JP4011718B2 (en) Automotive heat exchanger
KR20010024615A (en) Heat exchanger
JP2006189205A (en) Heat exchanger
JPH07121451B2 (en) Heat exchanger
JP3329893B2 (en) Heat exchanger header tank
JPH05318098A (en) Heat exchanger
JP3156565B2 (en) Heat exchanger
JP3774017B2 (en) Heat exchanger
JP3114230B2 (en) Stacked heat exchanger
JP2008304168A (en) Heat exchanger
JPS61217697A (en) Laminated type heat exchanger
JP2573421Y2 (en) Heat exchanger
JPS63169497A (en) Heat exchanger
JPH09178387A (en) Parallel flow type heat exchanger
JP2015206507A (en) heat exchanger
JP3858751B2 (en) Heat exchanger
JP2020003089A (en) Heat exchange tube and heat exchanger
JPH04340093A (en) Laminated type heat exchanger
JPH0624706Y2 (en) Heat exchanger