JPS63279094A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPS63279094A JPS63279094A JP11269787A JP11269787A JPS63279094A JP S63279094 A JPS63279094 A JP S63279094A JP 11269787 A JP11269787 A JP 11269787A JP 11269787 A JP11269787 A JP 11269787A JP S63279094 A JPS63279094 A JP S63279094A
- Authority
- JP
- Japan
- Prior art keywords
- header
- partition
- heat exchanger
- tube
- coolant
- 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.)
- Pending
Links
- 238000005192 partition Methods 0.000 claims abstract description 45
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 description 13
- 238000005219 brazing Methods 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 2
- 238000000638 solvent extraction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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
- F28D1/053—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 straight
- F28D1/0535—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 straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
-
- 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
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
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)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明はカークーラー用凝縮器やオイルクーラー等に
用いられる熱交換器に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a heat exchanger used in a car cooler condenser, an oil cooler, and the like.
従来の技術及びその問題点
例えば上記のような用途に用いられる凝縮器用熱交換器
としては、従来より、ハーモニカチューブと称されるよ
うな多孔押出偏平チューブを蛇行状に曲げ、その平行部
間にフィンを配置してコアを構成したいわゆるサーペン
タイン型熱交換器が用いられていた。ところがかかるサ
ーペンタイン型熱交換器では、熱交換媒体通路が１本の
偏平押出チューブにより形成されているため通路面積を
大きく確保できないこと、押出チューブを蛇行状に曲成
してなるものであるから、曲げ部の曲率半径を一定以上
小さくできないためチューブピッチを小さくできず、こ
のためチューブの平行部間に介在されるフィン数が少な
いものとなってフィン効率が悪いこと、等の理由から熱
交換効率の向上に限界があった。Conventional technology and its problems For example, as a heat exchanger for a condenser used in the above-mentioned applications, a multi-hole extruded flat tube called a harmonica tube is bent into a serpentine shape, and a tube is inserted between the parallel parts. A so-called serpentine heat exchanger was used, which had a core made up of fins. However, in such a serpentine heat exchanger, the heat exchange medium passage is formed by a single flat extruded tube, so a large passage area cannot be secured, and the extruded tube is bent in a meandering shape. Since the radius of curvature of the bent part cannot be reduced beyond a certain level, the tube pitch cannot be reduced, and as a result, the number of fins interposed between the parallel parts of the tube is small, resulting in poor fin efficiency. There were limits to the improvement of
そこでサーペンタイン型に代わる熱交換器として、偏平
チューブとコルゲートフィンとを交互配置に積層して、
チューブの両端を中空ヘッダーに連結した熱交換器が提
案されている。この熱交換器によれば、チューブピッチ
を自由に選択できるので、冷媒通路断面積を大きく確保
でき、また各チューブ間に介装されるフィンの本数も増
加でき小型で熱交換効率に優れたちのとなすことができ
る。Therefore, as a heat exchanger to replace the serpentine type, flat tubes and corrugated fins are stacked in an alternating arrangement.
A heat exchanger has been proposed in which both ends of a tube are connected to a hollow header. According to this heat exchanger, since the tube pitch can be freely selected, a large cross-sectional area of the refrigerant passage can be ensured, and the number of fins interposed between each tube can also be increased, resulting in a compact design with excellent heat exchange efficiency. can be done.
ところで、かかる熱交換器において、サーペンタイン型
のものと同様に熱交換媒体を蛇行状に流通させるために
、仕切部を設けて一方または両方のヘッダー内部を複数
の仕切室に分割し、もってチューブによって構成される
熱交換媒体通路を蛇行通路に形成せしめたものとなされ
る場合がある。而して、このような仕切部の構造として
、ヘッダーを複数本の短尺筒状のヘッダ一単位により構
成し、これらのヘッダ一単位を中間に仕切板を介在せし
めて長さ方向に組み合せ、ろう接固定した構造が採用さ
れている。By the way, in such a heat exchanger, in order to cause the heat exchange medium to flow in a meandering manner similar to the serpentine type, a partition is provided to divide the inside of one or both headers into a plurality of partition chambers, and the tubes are used to In some cases, the heat exchange medium passage is formed into a meandering passage. Therefore, the structure of such a partition is such that the header is composed of a plurality of short cylindrical header units, and these header units are combined in the length direction with a partition plate interposed between them, and the solder is A fixed structure is adopted.
しかしながらこのような構造では、部品点数が多くなっ
てコストが上昇したり、ろう付に際してヘッダ一単位と
仕切板とが位置ずれする危険性があるため、ろう付作業
が面倒で生産性が悪いというような欠点を有するもので
あった。However, with this type of structure, the number of parts increases, which increases costs, and there is a risk that the position of one unit of the header and the partition plate may be misaligned during brazing, making the brazing work troublesome and poor productivity. It had the following drawbacks.
またこの欠点をなくすため、ヘッダーを一本物で形成し
、ヘッダーの仕切位置に周壁の一部を切り欠いて切込み
部を設け、該切り込み部から仕切板をヘッダーに挿入し
て取り付けることも試みられているが、ヘッダーと仕切
板とをすきまなく適合させることは実際上容易でなく、
接合後もヘッダーと仕切板との間にすきまが生じ、外部
への熱交換媒体の洩れの危険性を払拭しえないものであ
った。Additionally, in order to eliminate this drawback, attempts have been made to form the header as a single piece, provide a notch by cutting out a part of the peripheral wall at the partition position of the header, and install the partition plate by inserting it into the header through the notch. However, it is actually not easy to match the header and the partition plate without any gaps;
Even after joining, a gap remained between the header and the partition plate, and the risk of leakage of the heat exchange medium to the outside could not be eliminated.
この発明はかかる欠点を解消するためになされたもので
あって、構造が簡単でしかも熱交換媒体の外部への洩れ
の危険のないヘッダーの仕切構造を採用した熱交換器を
提供しようとするものである。The present invention has been made in order to eliminate such drawbacks, and it is an object of the present invention to provide a heat exchanger that employs a header partition structure that is simple in structure and eliminates the risk of leakage of the heat exchange medium to the outside. It is.
問題点を解決するための手段
上記目的においてこの発明は、所定長さのチューブとコ
ルゲートフィンとが交互配置に積層されるとともに、各
チューブの両端が１対の中空ヘッダーに連結され、かつ
少なくとも一方のヘッダーの内部に、熱交換媒体を蛇行
状に流通させる仕切部が設けられた熱交換器であって、
前記仕切部は仕切位置においてへラダーの周壁を内方突
出状となされることにより形成されてなることを特徴と
するものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention has a structure in which tubes of a predetermined length and corrugated fins are stacked in an alternating arrangement, and both ends of each tube are connected to a pair of hollow headers, and at least one of the tubes is connected to a pair of hollow headers. A heat exchanger provided with a partition section inside the header for allowing a heat exchange medium to flow in a meandering manner,
The partition portion is characterized in that it is formed by making the circumferential wall of the ladder protrude inwardly at the partition position.
実施例
次にこの発明の構成を、アルミニウム製の凝縮器用熱交
換器に適用した実施例に基いて説明する。EXAMPLE Next, the structure of the present invention will be explained based on an example in which it is applied to a heat exchanger for a condenser made of aluminum.
第１図〜第５図において、（１）は水平状態で上下方向
に配置された複数のアルミニウム製チューブ、（２）は
その隣接するチューブ（１）（１）間に介在されたアル
ミニウム製のコルゲートフィンである。チューブ（１）
はアルミニウム材による偏平状の押出型材をもって構成
されたものである。このチューブ（１）はいわゆるハモ
ニカチューブと称されるような多孔型のものを用いても
良い。また押出型材によらず電縫管を用いても良い。コ
ルゲートフィン（２）はチューブ（１）とほぼ同じ幅を
有し、ろう付によりチューブに接合されている。コルゲ
ートフィン（２）は、望ましくはルーバーを切り起した
ものを用いるのが良い。In Figures 1 to 5, (1) is a plurality of aluminum tubes arranged vertically in a horizontal state, and (2) is an aluminum tube interposed between adjacent tubes (1). It is a corrugated fin. Tube (1)
is constructed with a flat extruded member made of aluminum material. This tube (1) may be of a porous type, so-called a harmonica tube. Furthermore, an electric resistance welded tube may be used instead of the extruded material. The corrugated fin (2) has approximately the same width as the tube (1) and is joined to the tube by brazing. It is preferable to use a corrugated fin (2) with a louver cut and raised.
（３）（４）は左右のヘッダーである。これらのヘッダ
ー（３）（４）は、各１本の断面円形のアルミニウム製
中空押出型材をもって形成されたものである。各ヘッダ
ーには第４図に示すように、長さ方向に沿って間隔的に
チューブ挿入孔（５）が穿設されるとともに、鎖孔に各
チューブ（１）の両端が挿入され、かつろう付により強
固に接合連結されている。さらに左ヘッダー（３）には
その上端に冷媒入口管（６）が連結されるとともに同下
端には蓋片（７）が取着され、また右ヘッダー（４）に
はその下端に冷媒出口管（８）が連結されるとともに同
上端には蓋片（９）が取着されている。さらに左ヘッダ
ー（３）には、中央部よりやや上の位置に仕切部（１０
）が設けられ、ヘッダー内が上部仕切室（３ａ）と下部
仕切室（３ｂ）とに仕切られる一方、右ヘッダー（４）
の下端から全長の１／３程度の位置にも仕切部（１１）
が設けられ、ヘッダー（４）内が上部仕切室（４ａ）と
下部仕切室（４ｂ）とに仕切られている。かかる仕切部
（１０） （１１）の形成により、冷媒入口管（６）
から左ヘッダー（３）の上部仕切室（３ａ）に流入した
冷媒はチューブ群によって構成される全冷媒通路を蛇行
状に流通して右ヘッダー（４）の下部仕切室（４ａ）に
至ったのち、冷媒出口管（８）から流出するものとなさ
れている。なお第２図に示す（１３） （１４）は最
外側のコルゲートフィン（２）の外側に配置された上下
のサイドプレートである。(3) and (4) are left and right headers. These headers (3) and (4) are each formed from a hollow extruded aluminum member having a circular cross section. As shown in Figure 4, tube insertion holes (5) are bored at intervals along the length of each header, and both ends of each tube (1) are inserted into the chain holes. It is firmly connected by attaching it. Furthermore, the left header (3) has a refrigerant inlet pipe (6) connected to its upper end and a lid piece (7) attached to its lower end, and the right header (4) has a refrigerant outlet pipe at its lower end. (8) are connected and a lid piece (9) is attached to the upper end thereof. Furthermore, the left header (3) has a partition section (10
), and the inside of the header is partitioned into an upper partition (3a) and a lower partition (3b), while the right header (4)
There is also a partition (11) located about 1/3 of the total length from the bottom edge of the
is provided, and the inside of the header (4) is partitioned into an upper partition chamber (4a) and a lower partition chamber (4b). By forming such partitions (10) (11), the refrigerant inlet pipe (6)
The refrigerant flowing into the upper compartment (3a) of the left header (3) flows in a meandering manner through the entire refrigerant passage made up of tube groups and reaches the lower compartment (4a) of the right header (4). , the refrigerant flows out from the refrigerant outlet pipe (8). Note that (13) and (14) shown in FIG. 2 are upper and lower side plates arranged outside the outermost corrugated fin (2).
ところで、前記仕切部（１０） （１１）の形成は次
のようにして行われている。即ち、第１図に示すように
、仕切部形成予定位置においてヘッダー（３）（４）に
外側からプレス加工等による縮径加工を施すことにより
、その周壁を全周にわたって内方突出状態となしたのち
、ろう付を施して内方突出部（１５）相互で囲まれた隙
間をろう材（■６）をもって完全に閉塞することにより
形成したものである。なお、ろう付はヘッダー（３）、
（４）として内面または内外両面にＡΩ−Ｓｉ系ろう材
（１６）を被覆した電縫管を用いることにより、同じく
ろう材を被覆したコルゲートフィン（２）やチューブ（
１）等とのろう付と同時に行うものとするのが、生産性
を向上しうる点で望ましい。By the way, the formation of the partition portions (10) and (11) is performed as follows. That is, as shown in Fig. 1, by reducing the diameter of the headers (3) and (4) by pressing or the like from the outside at the position where the partition is to be formed, the peripheral wall thereof is made to protrude inward over the entire circumference. After that, brazing is applied to completely close the gap between the inner protrusions (15) with the brazing material (6). In addition, brazing is done on the header (3),
(4) By using an electric resistance welded tube whose inner or outer surfaces are coated with AΩ-Si brazing material (16), corrugated fins (2) and tubes (also covered with brazing material) can be used.
It is desirable to perform this at the same time as brazing with 1) etc., as this can improve productivity.
第６図及び第７図はこの発明の他の実施例を示すもので
ある。この実施例は、熱交換器全体の大きさを縮小せし
めるべく、冷媒出入口管を熱交換器の同一端部側に形成
せしめたものである。即ち、右ヘッダー（４）に、上部
蓋片（９′）を貫通して下端が下部仕切室（４ｂ）へ臨
む冷媒導出用パイプ（２０）が挿入され、該パイプの上
端に該パイプに一体形成された冷媒出口管（８゛）が接
続されている。そして右ヘッダーの仕切部（１１−）は
、第７図に示すように内方突出部（１５＝）が前記冷媒
導出パイプ（２０）の周面に当接状態となるまでヘッダ
ー周壁を縮径状となされるとともに、内方突出部（１５
−）とパイプ（２０）とを隙間なくろう接することによ
り形成されている。なお第６図及び第７図において、前
述の第１実施例と同一構成部分については同一の符号を
付している。また第６図において（■７）は右ヘッダー
（４）の下端に新たに設けられた蓋片である。FIGS. 6 and 7 show other embodiments of the invention. In this embodiment, the refrigerant inlet and outlet pipes are formed at the same end of the heat exchanger in order to reduce the overall size of the heat exchanger. That is, a refrigerant outlet pipe (20) is inserted into the right header (4), passing through the upper lid piece (9') and having its lower end facing the lower partition (4b). A formed refrigerant outlet pipe (8゛) is connected. The partition part (11-) of the right header reduces the diameter of the header peripheral wall until the inward protruding part (15=) comes into contact with the peripheral surface of the refrigerant outlet pipe (20) as shown in FIG. It has a shape and an inward protrusion (15
-) and the pipe (20) are brazed together without any gaps. In FIGS. 6 and 7, the same components as those in the first embodiment described above are designated by the same reference numerals. Further, in FIG. 6, (■7) is a lid piece newly provided at the lower end of the right header (4).
ちなみに上記第６図に示すようなパイプ挿入状態のヘッ
ダーを、仕切板により仕切ろうとしても、仕切板がろう
付前に落下したり、あるいはろう付不良を発生する可能
性があるため、実際上仕切板の取付けは困難である。By the way, even if you try to partition a header with pipes inserted as shown in Figure 6 above using a partition plate, there is a possibility that the partition plate may fall before brazing or cause a brazing failure, so it is not practical in practice. Installing partition plates is difficult.
発明の詳細
な説明したように、この発明に係る熱交換器は、熱交換
媒体を蛇行状に流通させるためにヘッダー内部を仕切る
仕切部が、ヘッダー周壁を内方突出状となされることに
より形成されてなるものである。従つて、ヘッダーを仕
切るために仕切板を設ける必要がなくなるから、部品点
数を減少しえ部品管理を容易となしうるとともに、生産
性をも向上しうる。しかも特に、第６図及び第７図に示
した実施例のごとく、パイプ挿入状態のヘッダーを仕切
るような場合であっても、仕切板をもって仕切る場合の
困難性を派生することなく、簡単かつ確実にこれを仕切
ることかできる点で一層の利点がある。As described in detail, in the heat exchanger according to the present invention, the partition portion that partitions the inside of the header in order to circulate the heat exchange medium in a meandering manner is formed by making the header peripheral wall protrude inwardly. It is something that has been done. Therefore, since there is no need to provide a partition plate to partition the header, the number of parts can be reduced, parts management can be facilitated, and productivity can also be improved. In particular, even when partitioning a header with pipes inserted, as in the embodiments shown in Figs. 6 and 7, it is possible to easily and reliably partition the header without creating the difficulty of partitioning with a partition plate. There is a further advantage in that this can be partitioned.
第１図〜第５図はこの発明の一実施例を示すもので、第
１図は熱交換器の要部縦断面図、第２図は熱交換器の全
体正面図、第３図は同じく側面図、第４図はヘッダー、
チューブ、コルゲートフィンを分離した状態で示す斜視
図、第５図は第２図のｖ−ｖ線断面図、第６図及び第７
図はこの発明の他の実施例を示すもので、第６図はヘッ
ダーの一部を切欠いて示す熱交換器の ゛全体
正面図、第７図は要部の縦断面図である。
（１）・・・チューブ、（２）・・・コルゲートフィン
、（３） （４）・・・ヘッダー、（１０） （１
１）・・・仕切部、（１５） （１５”）・・・内方
突出部、（２０）・・・冷媒導出パイプ。
以上Figures 1 to 5 show an embodiment of the present invention. Figure 1 is a vertical sectional view of the main part of a heat exchanger, Figure 2 is an overall front view of the heat exchanger, and Figure 3 is the same. Side view, Figure 4 is the header,
A perspective view showing the tube and corrugated fins in a separated state, FIG. 5 is a sectional view taken along the line v-v in FIG. 2, and FIGS.
The figures show another embodiment of the present invention; FIG. 6 is an overall front view of the heat exchanger with a portion of the header cut away, and FIG. 7 is a vertical sectional view of the main parts. (1)...Tube, (2)...Corrugated fin, (3) (4)...Header, (10) (1
1)...Partition part, (15) (15")...Inward protrusion part, (20)...Refrigerant outlet pipe.
Claims (1)
に積層されるとともに、各チューブの両端が１対の中空
ヘッダーに連結され、かつ少なくとも一方のヘッダーの
内部に、熱交換媒体を蛇行状に流通させる仕切部が設け
られた熱交換器であって、前記仕切部は仕切位置におい
てヘッダーの周壁を内方突出状となされることにより形
成されてなることを特徴とする熱交換器。Tubes of a predetermined length and corrugated fins are stacked in an alternating arrangement, and both ends of each tube are connected to a pair of hollow headers, and a heat exchange medium is caused to flow in a meandering manner inside at least one of the headers. 1. A heat exchanger provided with a partition, wherein the partition is formed by making a peripheral wall of a header protrude inwardly at a partition position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11269787A JPS63279094A (en) | 1987-05-08 | 1987-05-08 | Heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11269787A JPS63279094A (en) | 1987-05-08 | 1987-05-08 | Heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63279094A true JPS63279094A (en) | 1988-11-16 |
Family
ID=14593227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11269787A Pending JPS63279094A (en) | 1987-05-08 | 1987-05-08 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63279094A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0761337A1 (en) * | 1995-09-07 | 1997-03-12 | Calsonic Corporation | Pipe with closure portion, heat exchanger header and method of producing therefor |
| US5711369A (en) * | 1996-12-16 | 1998-01-27 | Ford Global Technologies, Inc. | Heat exchanger manifold having a solder strip |
| US5761808A (en) * | 1996-10-30 | 1998-06-09 | Ford Motor Company | Method of making a heat exchanger |
| US5799397A (en) * | 1994-03-29 | 1998-09-01 | Calsonic Corporation | Pipe with closure portion, heat exchanger header and method of producing therefor |
-
1987
- 1987-05-08 JP JP11269787A patent/JPS63279094A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799397A (en) * | 1994-03-29 | 1998-09-01 | Calsonic Corporation | Pipe with closure portion, heat exchanger header and method of producing therefor |
| US5927397A (en) * | 1994-03-29 | 1999-07-27 | Calsonic Corporation | Pipe with closure portion, heat exchanger header and method of producing therefor |
| EP0761337A1 (en) * | 1995-09-07 | 1997-03-12 | Calsonic Corporation | Pipe with closure portion, heat exchanger header and method of producing therefor |
| KR100423163B1 (en) * | 1995-09-07 | 2004-07-01 | 칼소닉 칸세이 가부시끼가이샤 | Pipe having a closed part, heat exchanger header and manufacturing method thereof |
| US5761808A (en) * | 1996-10-30 | 1998-06-09 | Ford Motor Company | Method of making a heat exchanger |
| US5711369A (en) * | 1996-12-16 | 1998-01-27 | Ford Global Technologies, Inc. | Heat exchanger manifold having a solder strip |
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