JPH0565787B2 - - Google Patents
Info
- Publication number
- JPH0565787B2 JPH0565787B2 JP61070212A JP7021286A JPH0565787B2 JP H0565787 B2 JPH0565787 B2 JP H0565787B2 JP 61070212 A JP61070212 A JP 61070212A JP 7021286 A JP7021286 A JP 7021286A JP H0565787 B2 JPH0565787 B2 JP H0565787B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- corrugated
- flow path
- flat plates
- corrugated sheet
- 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
Links
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
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
-
- 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
- F28D9/0062—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 spaced plates with inserted elements
Landscapes
- 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)
Description
【発明の詳細な説明】 産業上の利用分野 この発明はオイルクーラに関する。[Detailed description of the invention] Industrial applications This invention relates to an oil cooler.
この明細書において、前後はオイル流路内にお
けるオイルの流れる方向を基準とし、前とはオイ
ルの流れ方向の上流側（第１図および第２図に矢
印Ａで示す方向と反対側）を指し、後とはこれと
反対側を指すものとする。また左右とは後方に向
つて金属製平板の幅方向を基準にしていうものと
する。さらに、上下とは第１図および第３図の上
下をいうものとする。 In this specification, "front" and "front" refer to the direction in which oil flows in the oil flow path, and "front" refers to the upstream side in the direction of oil flow (the side opposite to the direction indicated by arrow A in FIGS. 1 and 2). , "back" refers to the opposite side. In addition, left and right refers to the width direction of the flat metal plate toward the rear. Furthermore, the term "upper and lower" refers to the upper and lower sides of FIGS. 1 and 3.
従来技術とその問題点
従来、この種オイルクーラとしては、互いに対
向する上下１対の金属製平板と、両平板の左右両
側縁部どうしの間に介在させられて平板に接合さ
れた左右１対のサイド・バーと、両平板間におい
てサイド・バーどうしの間に介在させられて平板
に接合されたコルゲート・フインとによつて形成
されたオイル流路を備えていた。このオイルクー
ラにおいて、上記オイル流路は、空気流路を介し
て並列状に複数形成されており、隣り合うオイル
流路間に空気が流通させられるようになつてい
た。Conventional technology and its problems Conventionally, this type of oil cooler has a pair of upper and lower metal flat plates facing each other, and a pair of left and right metal plates that are interposed between the left and right edges of both flat plates and joined to the flat plate. The oil flow path was formed by a side bar and a corrugated fin that was interposed between the side bars and joined to the flat plate. In this oil cooler, a plurality of oil passages are formed in parallel with each other via air passages, so that air can flow between adjacent oil passages.
しかしながら、オイルの流速は比較的小さいた
め、従来のオイルクーラでは、オイル流路内にお
けるオイルの流れが乱されにくく、必要な冷却性
能が得られないという問題があつた。 However, since the flow velocity of oil is relatively low, conventional oil coolers have a problem in that the flow of oil in the oil flow path is difficult to be disturbed and the necessary cooling performance cannot be obtained.
この発明の目的は、上記問題を解決したオイル
クーラを提供することにある。 An object of the present invention is to provide an oil cooler that solves the above problems.
問題点を解決するための手段
この発明によるオイルクーラは、互いに対向す
る上下１対の金属製平板と、両平板間の左右両側
縁に配置されかつ両平板に接合されたサイド・バ
ーと、両平板間に配置されかつ左右両側縁がサイ
ド・バーに固定されたフインとによつて形成され
るオイル流路とを備えているオイルクーラにおい
て、フインが、前後に並べられ、かつ後方に向か
つて下方に傾斜せしめられているとともに山部の
前端が上側の平板に、谷部の後端が下側の平板に
それぞれ当接せしめられている複数の波板部で構
成されており、前後に隣接する波板部の山部と谷
部とが左右方向に食い違い状となされるととも
に、前の波板部の山部後端と後の波板部の谷部前
端とが一体に連結されることにより、前の波板部
の各谷部と後の波板部の各山部との間に前方に開
口したオイル通過孔が形成され、すべてのオイル
通過孔が千鳥配置状となされているものである。Means for Solving the Problems The oil cooler according to the present invention includes a pair of upper and lower metal flat plates facing each other, side bars arranged on the left and right edges between the two flat plates and joined to both the flat plates, and In an oil cooler that is provided with an oil flow path formed by fins arranged between flat plates and whose left and right edges are fixed to side bars, the fins are arranged front and back and are directed rearward. It is composed of a plurality of corrugated plate parts that are inclined downward and the front ends of the peaks are in contact with the upper flat plate, and the rear ends of the troughs are in contact with the lower flat plate, and are adjacent in the front and back. The crests and troughs of the corrugated sheet portion are staggered in the left-right direction, and the rear end of the crest of the front corrugated sheet portion and the front end of the trough of the rear corrugated sheet portion are integrally connected. As a result, oil passage holes opening forward are formed between each trough of the front corrugated sheet part and each peak of the rear corrugated sheet part, and all oil passage holes are arranged in a staggered manner. It is.
作 用
オイル流路に配置されたフインが、前後に並べ
られ、かつ後方に向かつて下方に傾斜せしめられ
ているとともに山部の前端が上側の平板に、谷部
の後端が下側の平板にそれぞれ当接せしめられて
いる複数の波板部で構成されており、前後に隣接
する波板部の山部と谷部とが左右方向に食い違い
状となされるとともに、前の波板部の山部後端と
後の波板部の谷部前端とが一体に連結されること
により、前の波板部の各谷部と後の波板部の各山
部との間に前方に開口したオイル通過孔が形成さ
れ、すべてのオイル通過孔が千鳥配置状となされ
ているので、前後、左右に交互に存在する山部お
よび谷部と、千鳥配置状のオイル通過孔との働き
により、オイル流路内でオイルの流れが十分に乱
される。Function The fins arranged in the oil flow path are lined up front and back, and are tilted downward toward the rear, with the front ends of the peaks forming the upper flat plate, and the rear ends of the troughs forming the lower flat plate. It is composed of a plurality of corrugated sheet parts that are brought into contact with each other, and the peaks and troughs of the adjacent corrugated sheet parts are staggered in the left-right direction, and the corrugated sheet parts of the previous corrugated sheet By integrally connecting the rear end of the crest and the front end of the trough of the rear corrugated sheet, an opening is created in the front between each trough of the front corrugated sheet and each peak of the rear corrugated sheet. All the oil passage holes are arranged in a staggered arrangement, so the alternating peaks and valleys on the front, back, left and right sides work together with the staggered oil passage holes. The oil flow is sufficiently disturbed within the oil flow path.
実施例
この発明を、以下図面を参照しながら説明す
る。以下の説明において、アルミニウムという語
には、純アルミニウムの他にすべてのアルミニウ
ム合金を含むものとする。Embodiments The present invention will be described below with reference to the drawings. In the following description, the term aluminum includes all aluminum alloys in addition to pure aluminum.
この発明の実施例を示す図面において、オイル
クーラ１は、水平なオイル流路２と空気流路３と
を上下方向に交互に有している。オイル流路２に
はオイルが第１図および第２図に矢印Ａで示す方
向に流通し、また空気流路３には空気が第１図に
矢印Ｂで示す方向に流通する。両流路２，３はこ
れらのオイルが平面から見て直交状に流れるよう
に配置されている。オイル流路２の前後両端は、
オイルクーラ１の前後両端部に配置されたヘツダ
タンク５と連通させられている。 In the drawings showing an embodiment of the invention, an oil cooler 1 has horizontal oil passages 2 and air passages 3 alternating in the vertical direction. Oil flows through the oil flow path 2 in the direction shown by arrow A in FIGS. 1 and 2, and air flows through the air flow path 3 in the direction shown by arrow B in FIG. Both flow paths 2 and 3 are arranged so that these oils flow orthogonally when viewed from above. The front and rear ends of the oil flow path 2 are
It is communicated with header tanks 5 arranged at both front and rear ends of the oil cooler 1.
オイル流路２は、上下一対のアルミニウム製平
板６と、両平板６間の左右両側縁に配置されかつ
両平板６に接合されたアルミニウム押出型材製サ
イド・バー９と、両平板６間に配置されかつ左右
両側縁がサイド・バー９に固定されたアルミニウ
ム製フイン８とによつて形成されている。 The oil flow path 2 is arranged between a pair of upper and lower aluminum flat plates 6, side bars 9 made of extruded aluminum, which are arranged on the left and right edges between both flat plates 6 and joined to both flat plates 6, and between both flat plates 6. The left and right edges are formed by aluminum fins 8 fixed to side bars 9.
両サイド・バー９のオイル流路２内方を向いた
面には、前後方向に所定間隔をおいて複数のフイ
ン保持部７が一体的に設けられている。フイン保
持部７は、サイド・バー９と一体に押出成形され
た前後方向に伸びる上下２つの突条を所定間隔お
きに所定長さずつ切除することにより形成されて
いてる。 A plurality of fin holding portions 7 are integrally provided on the surfaces of both side bars 9 facing inward of the oil flow path 2 at predetermined intervals in the front-rear direction. The fin holding portion 7 is formed by cutting out two protrusions, upper and lower, which extend in the front-rear direction and are integrally extruded with the side bar 9 and have a predetermined length at predetermined intervals.
フイン８は、前後に並べられかつ一体に連結さ
れた複数の波板部８ａで構成されている。各波板
部８ａは後方に向かつて下方に傾斜せしめられる
とともに、山部１２の前端が上側の平板６に、谷
部１１の後端が下側の平板６にそれぞれ当接せし
められて平板６にろう付されている。前後に隣接
する波板部８ａの山部１２と谷部１１とは左右方
向に食い違い状となされるとともに、前の波板部
８ａの山部１２後端と後の波板部８ａの谷部１１
前端とが一体に連結されていることにより、前の
波板部８ａの各谷部１１と後の波板部８ａの各山
部１２との間に前方に開口したオイル通過孔２０
が形成されている。すべてのオイル通過孔２０は
千鳥配置状となされている。また、前後に隣接す
る波板部８ａの前の波板部８ａの山部１２と後の
波板部８ａの谷部１１とは、第３図に示すように
一直線状に連なつている。また、フイン８の左右
両縁部は、サイド・バー９のフイン保持部７間に
強制的に嵌合固定されている。このようなフイン
８は、たとえばアルミニウム製平板状素材に、左
右方向に伸びる複数の切込み１０を千鳥配置状に
入れた後、素材を前後方向に引張ることにより製
造される。 The fin 8 is composed of a plurality of corrugated plate portions 8a that are arranged in front and back and are integrally connected. Each corrugated plate part 8a is inclined downward toward the rear, and the front end of the peak part 12 is brought into contact with the upper flat plate 6, and the rear end of the trough part 11 is brought into contact with the lower flat plate 6, so that the flat plate 6 It is soldered to. The peaks 12 and troughs 11 of the corrugated plate portions 8a adjacent to each other in the front and back are staggered in the left-right direction, and the rear end of the peaks 12 of the front corrugated plate portion 8a and the troughs of the rear corrugated plate portion 8a 11
Since the front end is integrally connected, oil passage holes 20 are opened forward between each trough 11 of the front corrugated sheet portion 8a and each peak portion 12 of the rear corrugated sheet portion 8a.
is formed. All the oil passage holes 20 are arranged in a staggered manner. Furthermore, the peaks 12 of the front corrugated sheet portion 8a and the trough portions 11 of the rear corrugated sheet portion 8a of the corrugated sheet portions 8a that are adjacent in the front and back are connected in a straight line as shown in FIG. Further, both left and right edges of the fin 8 are forcibly fitted and fixed between the fin holding portions 7 of the side bar 9. Such fins 8 are manufactured, for example, by making a plurality of cuts 10 extending in the left-right direction in a staggered arrangement in a flat plate-shaped material made of aluminum, and then pulling the material in the front-rear direction.
空気が流通する空気流路３は、上位のオイル流
路２の下側の平板６と下位のオイル流路２の上側
の平板６との間に配置され、かつ前後側壁を構成
するアルミニウム押出型材製の前後一対のスペー
サ・バー１５と、これらのスペーサ・バー１５ど
うしの間に配置されかつ両スペーサ・バー１５に
対して平行な凹凸部を有するアルミニウム製コル
ゲート・フイン１６とによつて形成されている。
隣り合うオイル流路２と空気流路３とは、両者間
の平板６を共通にしている。コルゲート・フイン
１６には多数のルーバ１７が形成されている。空
気流路３の左右両端は大気中に開口しており、強
制送風または自然送風によつて流路３内を空気が
流れるようになつている。 The air flow path 3 through which air flows is arranged between the lower flat plate 6 of the upper oil flow path 2 and the upper flat plate 6 of the lower oil flow path 2, and is formed of an extruded aluminum material forming the front and rear side walls. It is formed by a pair of front and rear spacer bars 15 made of aluminum, and an aluminum corrugated fin 16 disposed between these spacer bars 15 and having an uneven portion parallel to both spacer bars 15. ing.
The adjacent oil flow path 2 and air flow path 3 share a flat plate 6 between them. A large number of louvers 17 are formed on the corrugated fin 16. Both left and right ends of the air passage 3 are open to the atmosphere, and air is allowed to flow through the passage 3 by forced or natural ventilation.
このような構成において、オイルが、オイル流
路２内を矢印Ａ方向に流れる間に、空気流路３内
を矢印Ｂ方向に向つて流れる空気により冷やされ
る。このとき、フイン８の前後、左右に交互に並
んだ山部１２および谷部１１、ならびに前方に開
口した千鳥配置状の複数の通過孔２０によつてオ
イルの流れが乱されて十分に攪拌せられ、熱交換
性能が向上する。 In such a configuration, while the oil flows in the direction of arrow A in the oil flow path 2, it is cooled by the air flowing in the direction of arrow B in the air flow path 3. At this time, the oil flow is disturbed by the ridges 12 and troughs 11 that are arranged alternately on the front and rear, right and left sides of the fin 8, and the plurality of passage holes 20 in a staggered arrangement that are open to the front, so that the oil is not sufficiently stirred. heat exchange performance is improved.
オイルクーラ１は、次のようにして製造され
る。すなわち、まず、フイン８の左右両側縁部を
サイド・バー９の保持部７で保持することによ
り、フイン８をサイド・バー９に固定してスペー
サをつくる。ついで、平板状のアルミニウム・ブ
レージング・シートと、上記スペーサと、１対の
スペーサ・バー１５およびコルゲート・フイン１
６を重合状態に配置し、例えば真空ろう付法によ
り一体に接合する。こうしてオイルクーラ１が製
造される。この場合、ブレージング・シートがろ
う付後平板６となる。なお、この場合、アルミニ
ウム・ブレーシング・シートを用いてろう付され
ているが、これに限らず、平板６としてアルミニ
ウム板を使用するとともにアルミニウム板の上下
両面にそれぞれろう材をハケ塗り等で塗布してお
き、このろう材層によりオイルクーラ１全体を接
合することも可能である。 The oil cooler 1 is manufactured as follows. That is, first, the left and right edges of the fin 8 are held by the holding portions 7 of the side bar 9, thereby fixing the fin 8 to the side bar 9 to form a spacer. Next, a flat aluminum brazing sheet, the spacer, a pair of spacer bars 15 and a corrugated fin 1 are assembled.
6 are placed in a polymerized state and joined together by, for example, vacuum brazing. In this way, the oil cooler 1 is manufactured. In this case, the brazing sheet becomes the flat plate 6 after brazing. In this case, brazing is performed using an aluminum bracing sheet, but the invention is not limited to this, and an aluminum plate may be used as the flat plate 6, and a brazing material may be applied by brushing or the like to both the top and bottom surfaces of the aluminum plate. However, it is also possible to join the entire oil cooler 1 using this brazing material layer.
発明の効果
この発明のオイルクーラによれば、上述のよう
に、前後、左右に交互に存在する山部および谷部
と、千鳥配置状に存在する前方に開口したオイル
通過孔とによつてオイル流路内を流れるオイルの
流れが十分に乱されて乱流状態となる。したがつ
て、オイルの冷却性能が向上し、全体の小形軽量
化を図ることができる。Effects of the Invention According to the oil cooler of the present invention, as described above, the oil is absorbed by the ridges and troughs that are alternately present in the front, rear, left and right sides, and the oil passage holes that are opened in the front and that are arranged in a staggered manner. The flow of oil flowing within the flow path is sufficiently disturbed and becomes turbulent. Therefore, the oil cooling performance is improved, and the overall size and weight can be reduced.
第１図はこの発明によるオイルクーラを示す一
部を切欠いた部分斜視図、第２図は第１図のオイ
ルクーラのオイル流路の一部を示す部分切欠き平
面図、第３図は第２図の−線にそう断面図、
第４図は第１図のオイルクーラのオイル流路を、
一部を省略して示す分解斜視図である。
１……オイルクーラ、２……オイル流路、６…
…平板、８……フイン、８ａ……波板部、９……
サイド・バー、１１……谷部、１２……山部、２
０……オイル通過孔。
FIG. 1 is a partially cutaway perspective view showing an oil cooler according to the present invention, FIG. 2 is a partially cutaway plan view showing a part of the oil flow path of the oil cooler of FIG. 1, and FIG. A cross-sectional view along the - line in Figure 2,
Figure 4 shows the oil flow path of the oil cooler in Figure 1.
FIG. 3 is an exploded perspective view with some parts omitted. 1...Oil cooler, 2...Oil flow path, 6...
...Flat plate, 8...Fin, 8a...Corrugated plate part, 9...
Side bar, 11...Tanibe, 12...Yamabe, 2
0...Oil passage hole.
Claims (1)
両平板６間の左右両側縁に配置されかつ両平板６
に接合されたサイド・バー９と、両平板６間に配
置されかつ左右両側縁がサイド・バー９に固定さ
れたフイン８とによつて形成されるオイル流路２
とを備えているオイルクーラにおいて、フイン８
が、前後に並べられ、かつ後方に向かつて下方に
傾斜せしめられているとともに山部１２の前端が
上側の平板６に、谷部１１の後端が下側の平板６
にそれぞれ当接せしめられている複数の波板部８
ａで構成されており、前後に隣接する波板部８ａ
の山部１２と谷部１１とが左右方向に食い違い状
となされるとともに、前の波板部８ａの山部１２
後端と後の波板部８ａの谷部１１前端とが一体に
連結されることにより、前の波板部８ａの各谷部
１１と後の波板部８ａの各山部１２との間に前方
に開口したオイル通過孔２０が形成され、すべて
のオイル通過孔２０が千鳥配置状となされている
オイルクーラ。1 A pair of upper and lower metal flat plates 6 facing each other,
The flat plates 6 are arranged on both left and right edges between the flat plates 6.
An oil flow path 2 formed by a side bar 9 joined to the side bar 9 and a fin 8 disposed between both flat plates 6 and having both left and right edges fixed to the side bar 9.
In an oil cooler equipped with
are lined up front and back, and are inclined downward toward the rear, with the front ends of the peaks 12 forming the upper flat plate 6, and the rear ends of the troughs 11 forming the lower flat plate 6.
A plurality of corrugated plate portions 8 are brought into contact with each other.
a, and adjacent corrugated plate portions 8a in the front and rear
The peaks 12 and troughs 11 of the previous corrugated plate portion 8a are staggered in the left-right direction, and the peaks 12 of the previous corrugated plate portion 8a
By integrally connecting the rear end and the front end of the trough portion 11 of the rear corrugated sheet portion 8a, there is a gap between each trough portion 11 of the front corrugated sheet portion 8a and each peak portion 12 of the rear corrugated sheet portion 8a. An oil cooler in which an oil passage hole 20 that opens toward the front is formed, and all the oil passage holes 20 are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7021286A JPS62225896A (en) | 1986-03-27 | 1986-03-27 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7021286A JPS62225896A (en) | 1986-03-27 | 1986-03-27 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62225896A JPS62225896A (en) | 1987-10-03 |
| JPH0565787B2 true JPH0565787B2 (en) | 1993-09-20 |
Family
ID=13424990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7021286A Granted JPS62225896A (en) | 1986-03-27 | 1986-03-27 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62225896A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8327924B2 (en) * | 2008-07-03 | 2012-12-11 | Honeywell International Inc. | Heat exchanger fin containing notches |
| JP7727226B1 (en) * | 2024-03-18 | 2025-08-21 | ダイキン工業株式会社 | Heat exchangers and refrigeration equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5346497A (en) * | 1976-10-08 | 1978-04-26 | Ishikawajima Harima Heavy Ind Co Ltd | Method and apparatus for cooling and recovering granulated slag |
| JPS5568593A (en) * | 1978-11-16 | 1980-05-23 | Taikisha Ltd | Element block for air-treatment |
| JPS6030628Y2 (en) * | 1982-02-16 | 1985-09-13 | 富士重工業株式会社 | Heat exchanger |
-
1986
- 1986-03-27 JP JP7021286A patent/JPS62225896A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62225896A (en) | 1987-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4804041A (en) | Heat-exchanger of plate fin type | |
| US4729428A (en) | Heat exchanger of plate fin type | |
| US4501321A (en) | After cooler, charge air cooler and turbulator assemblies and methods of making the same | |
| US4934455A (en) | Plate-fin heat exchanger | |
| JP4157768B2 (en) | Evaporator | |
| US6942024B2 (en) | Corrugated heat exchange element | |
| JP2005506505A5 (en) | ||
| JPH11337276A (en) | Laminated heat exchanger | |
| EP0203458B1 (en) | Heat-exchanger of plate fin type | |
| JPH0565787B2 (en) | ||
| JPS63169494A (en) | Heat exchanger | |
| JP2884201B2 (en) | Heat exchanger | |
| JPH03204595A (en) | Condenser | |
| JPH0249512Y2 (en) | ||
| JPH0141035Y2 (en) | ||
| JPH0443739Y2 (en) | ||
| JPH0429251Y2 (en) | ||
| JP3108913B2 (en) | Oil cooler juxtaposed with aftercooler | |
| JP2005147572A (en) | Fin for heat exchanger | |
| JPS6026300Y2 (en) | corrugate fin | |
| JPS6287791A (en) | Fin for heat exchanger | |
| JPH0583838B2 (en) | ||
| JPH037879B2 (en) | ||
| JP2001027488A (en) | Stacked heat exchanger | |
| JPS6269098A (en) | Heat exchanger |