JPH0599578A - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
JPH0599578A
JPH0599578A JP26082891A JP26082891A JPH0599578A JP H0599578 A JPH0599578 A JP H0599578A JP 26082891 A JP26082891 A JP 26082891A JP 26082891 A JP26082891 A JP 26082891A JP H0599578 A JPH0599578 A JP H0599578A
Authority
JP
Japan
Prior art keywords
wall
heat exchanger
air passage
outside air
cooling
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.)
Granted
Application number
JP26082891A
Other languages
Japanese (ja)
Other versions
JP2686681B2 (en
Inventor
Kazuhiko Hirano
一彦 平野
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.)
Fanuc Corp
Original Assignee
Fanuc Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanuc Corp filed Critical Fanuc Corp
Priority to JP26082891A priority Critical patent/JP2686681B2/en
Publication of JPH0599578A publication Critical patent/JPH0599578A/en
Application granted granted Critical
Publication of JP2686681B2 publication Critical patent/JP2686681B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

PURPOSE:To improve the heat exchange efficiency of a buried type heat exchanger by disposing a cooled interior air passage on a fresh air side and a cooling fresh air passage on an interior air side, and further disposing a fan for directing cooled air along the internal surface of a casing wall surface. CONSTITUTION:A heat exchanger 4 is buried in a casing 1 in which electronic instruments are accomodated. The heat exchanger 4 is constructed by isolating an interior air passage 43 and a fresh air passage 47 with a partition wall 49. The interior air passage 43 is brought into contact with fresh air through an outer wall 50 while the fresh air passage 47 is brought into contact with interior air through a wall surface 11 of the casing 1. A cooling fan 61 is disposed in a region corresponding to the fresh air passage 47 for directing cold air along the internal surface of the wall surface 11 of the casing 11. Hereby, opposite surfaces of the interior air passage 43 are cooled through the partition wall 49 and the outer wall 50 to improve heat exchange efficiency. Further, the interior air from the cooling fan 61 is cooled through the partition wall 49 and the all surface 11 of the casing 1 by the fresh air flowing through the fresh air passage 47.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、NC装置等に使用する
気体循環型の熱交換器の改良に関する。特に、熱交換効
率を向上する改良に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a gas circulation type heat exchanger used in an NC device or the like. In particular, it relates to improvements that improve heat exchange efficiency.

【0002】[0002]

【従来の技術】NC装置等の産業用電子機器は、悪い環
境条件の下において使用されることが多いので、密閉筐
体に入れて使用される。一方、NC装置等の産業用電子
機器は発熱をともなうから、これが収容される密閉筐体
の内気を冷却しなければならない。そのため、従来、コ
ルゲートタイプのプレートフィン式熱交換器またはヒー
トパイプ式熱交換器が広く使用されていたが、発熱量が
小さい場合はコスト的に不利であるから、図4に縦断面
図を示すような埋め込み箱型の熱交換器が開発された。
2. Description of the Related Art Industrial electronic devices such as NC devices are often used under adverse environmental conditions and are therefore used in a hermetically sealed housing. On the other hand, since industrial electronic devices such as NC devices are accompanied by heat generation, it is necessary to cool the inside air of the hermetically sealed housing in which they are stored. Therefore, conventionally, a corrugated type plate fin type heat exchanger or a heat pipe type heat exchanger has been widely used, but it is disadvantageous in terms of cost when the calorific value is small, and therefore a longitudinal sectional view is shown in FIG. Such an embedded box type heat exchanger has been developed.

【0003】図4参照 図において、1は電子機器が収容される筐体であり、2
が上記の埋め込み箱型の熱交換器である。この埋め込み
箱型の熱交換器2は、冷却されるべき内気を、内気吸入
用ファン23を利用して内気吸入口22から吸入し、内気通
路24を通過させて内気排出口25から排出するとゝもに、
冷却すべき外気を、外気吸入用ファン27を利用して外気
吸入口26から吸入し、外気通路28を通過させながら内気
通路24と外気通路28との隔壁30を介して内外気を熱交換
させ、外気排出口29から排出するものである。
In FIG. 4, reference numeral 1 is a housing for housing electronic equipment, and 2 is a housing.
Is the above-mentioned embedded box type heat exchanger. This embedded box type heat exchanger 2 sucks the inside air to be cooled from the inside air inlet 22 using the inside air suction fan 23, passes through the inside air passage 24 and discharges the inside air outlet 25. Anyway,
The outside air to be cooled is sucked from the outside air intake port 26 using the outside air suction fan 27, and while passing through the outside air passage 28, heat is exchanged between the inside and outside air through the partition 30 between the inside air passage 24 and the outside air passage 28. The air is discharged from the outside air outlet 29.

【0004】この埋め込み箱型の熱交換器の熱交換面は
内気通路24と外気通路28との隔壁30のみであり、熱交換
効率が低い。
The heat exchange surface of this embedded box type heat exchanger is only the partition wall 30 between the inside air passage 24 and the outside air passage 28, and the heat exchange efficiency is low.

【0005】[0005]

【発明が解決しようとする課題】以上に述べたように、
従来技術に係る埋め込み箱型の熱交換器は熱交換効率が
必ずしも高くないと云う欠点がある。
[Problems to be Solved by the Invention] As described above,
The embedded box type heat exchanger according to the prior art has a drawback that the heat exchange efficiency is not necessarily high.

【0006】本発明の目的は、この欠点を解消すること
にあり、熱交換効率が向上している埋め込み箱型の熱交
換器を提供することにある。
An object of the present invention is to eliminate this drawback, and to provide a buried box type heat exchanger having improved heat exchange efficiency.

【0007】[0007]

【課題を解決するための手段】上記の目的は、下記いづ
れの手段をもっても達成される。第1の手段は、(イ)
内気通路(43)と外気通路(47)とが、隔壁(49)を介
して、内気通路(43)が外気側となり外気通路(47)が
内気側になるように配置され、(ロ)内気通路(43)と
外気通路(47)とにはそれぞれ内気給送用ファン(42)
または外気給送用ファン(46)が設けられ、(ハ)内気
通路(43)と外気通路(47)とは、隔壁(49)を介して
熱交換するとゝもに、内気通路(43)と外壁(50)との
間及び外気通路(47)と筐体(1)の壁面(11)との間
においても、熱交換することゝされており、(ニ)外気
通路(47)に対応する領域において、筐体(1)の壁面
(11)の内面にそって冷却風を流すように筐体内壁冷却
ファン(61)が設けられている熱交換器である。
The above object can be achieved by any of the following means. The first means is (a)
The inside air passageway (43) and the outside air passageway (47) are arranged such that the inside air passageway (43) is on the outside air side and the outside air passageway (47) is on the inside air side via the partition wall (49). The inside air feeding fan (42) is provided in each of the passage (43) and the outside air passage (47).
Alternatively, an outside air feeding fan (46) is provided, and (c) the inside air passageway (43) and the outside air passageway (47) exchange heat with each other through the partition wall (49). Heat is also exchanged between the outer wall (50) and the outer air passage (47) and the wall surface (11) of the housing (1), and corresponds to (d) the outer air passage (47). In the region, the heat exchanger is provided with a casing inner wall cooling fan (61) so as to flow cooling air along the inner surface of the wall surface (11) of the casing (1).

【0008】第2の手段は、第1の手段の熱交換器にお
いて、筐体内壁冷却ファン(61)の流出口(62)に連通
して、外気通路(47)に対応する領域に、筐体(1)の
壁面(11)の内面にそって冷却風ダクト(63)が設けら
れている熱交換器である。
The second means is, in the heat exchanger of the first means, communicated with the outlet (62) of the cooling fan (61) for the inner wall of the housing and provided in the area corresponding to the outside air passage (47). The heat exchanger is provided with a cooling air duct (63) along the inner surface of the wall surface (11) of the body (1).

【0009】第3の手段は、第1または第2の手段の熱
交換器において、内気通路(43)に対応する領域に、熱
交換器(4)の外壁(50)にそって冷却風を流すように
熱交換器外壁冷却ファン(71)が設けられ、熱交換器外
壁冷却ファン(71)の流出口(72)に連通して熱交換器
(4)の外壁(50)にそって冷却風ダクト(73)が設け
られている熱交換器である。
The third means is, in the heat exchanger of the first or second means, for supplying cooling air along the outer wall (50) of the heat exchanger (4) to a region corresponding to the inside air passageway (43). A heat exchanger outer wall cooling fan (71) is provided so as to flow and communicates with an outlet (72) of the heat exchanger outer wall cooling fan (71) to cool along the outer wall (50) of the heat exchanger (4). It is a heat exchanger provided with a wind duct (73).

【0010】[0010]

【作用】本発明の第1の手段に係る埋め込み箱型の熱交
換器においては、冷却される内気の通路43が外気側に設
けられて外気に接し、冷却する外気の通路47が内気側に
設けられて内気に接しており、しかも、外気通路47に対
応する領域において筐体1の壁面11の内面にそって冷却
風を流すように筐体内壁冷却ファン61が設けられている
ので、熱交換効率がすぐれている。
In the embedded box type heat exchanger according to the first means of the present invention, the passage 43 of the inside air to be cooled is provided on the outside air side and is in contact with the outside air, and the passage 47 of the outside air to be cooled is on the inside air side. Since the housing inner wall cooling fan 61 is provided so as to flow cooling air along the inner surface of the wall surface 11 of the housing 1 in the area corresponding to the outside air passage 47, Excellent exchange efficiency.

【0011】本発明の第2の手段に係る埋め込み箱型の
熱交換器においては、第1の手段の筐体内壁冷却ファン
61に加えて、筐体1の壁面11の内面にそって冷却風ダク
ト63が設けられているので、熱交換効率がさらに向上し
ている。
In the embedded box type heat exchanger according to the second means of the present invention, the casing inner wall cooling fan of the first means is used.
In addition to 61, since the cooling air duct 63 is provided along the inner surface of the wall surface 11 of the housing 1, the heat exchange efficiency is further improved.

【0012】本発明の第3の手段に係る埋め込み箱型の
熱交換器においては、第1または第2の手段の筐体内壁
冷却ファン61に加えて、熱交換器4の外壁50にそって冷
却風を流すように熱交換器外壁冷却ファン71とこのファ
ン71の冷却風を、熱交換器4の外壁50にそってガイドす
る冷却風ダクト73とが設けられているので、熱交換効率
は、さらに向上している。
In the embedded box type heat exchanger according to the third means of the present invention, in addition to the casing inner wall cooling fan 61 of the first or second means, along the outer wall 50 of the heat exchanger 4. Since the heat exchanger outer wall cooling fan 71 and the cooling air duct 73 for guiding the cooling air of the fan 71 along the outer wall 50 of the heat exchanger 4 are provided so as to flow the cooling air, the heat exchange efficiency is improved. , Is even better.

【0013】[0013]

【実施例】以下、図面を参照して、本発明の三つの実施
例に係る熱交換器について説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A heat exchanger according to three embodiments of the present invention will be described below with reference to the drawings.

【0014】第1実施例 図1(a)(b)参照 図1(a)は縦断面図であり、図1(b)はそのB−B
断面図(横断面図)である。図において、1は電子機器
が収容される筐体であり、4が本実施例に係る埋め込み
箱型熱交換器である。41は内気吸入口であり、42は内気
給送用ファンであり、43は内気通路であり、44は内気排
出口である。また、45は外気吸入口であり、46は外気給
送用ファンであり、47は外気通路であり、48は外気排出
口である。さらに、61が筐体内壁冷却ファンであり、外
気通路47に対応する領域において筐体1の壁面11の内面
にそって冷却風を流す。
First Embodiment See FIGS. 1A and 1B. FIG. 1A is a longitudinal sectional view, and FIG. 1B is its BB line.
It is a sectional view (transverse sectional view). In the figure, reference numeral 1 is a housing for accommodating electronic equipment, and 4 is a buried box heat exchanger according to the present embodiment. Reference numeral 41 is an inside air intake port, 42 is an inside air feeding fan, 43 is an inside air passage, and 44 is an inside air discharge port. Further, 45 is an outside air intake port, 46 is an outside air feeding fan, 47 is an outside air passage, and 48 is an outside air discharge port. Further, reference numeral 61 denotes a casing inner wall cooling fan, which causes cooling air to flow along the inner surface of the wall surface 11 of the casing 1 in a region corresponding to the outside air passage 47.

【0015】図より明らかなように、内気通路43と外気
通路47とは隔壁49をもって隔てられており、また、内気
通路43が外気側となり外気通路47が内気側になるように
配置されており、内気通路43はその外壁50を介して外気
と接しており、外気通路47は筐体1の壁面11を介して内
気と接しており、さらに、外気通路47に対応する領域に
おいて筐体1の壁面11の内面にそって冷却風を流す筐体
内壁冷却ファン61が設けられている。そのため、内気通
路43は、隔壁49と外壁50とを介して、その両面から冷却
されるので、熱交換効率が高い。しかも、外気通路47中
を給送される外気は隔壁49と筐体1の壁面11との双方を
介して内気を冷却することゝなり、しかも、筐体1の壁
面11の内面にそっても筐体内壁冷却ファン61によって内
気が流されて、この内気も外気通路47を通過する外気に
よって積極的に冷却されるので、この点からも熱交換効
率が高い。
As is apparent from the figure, the inside air passage 43 and the outside air passage 47 are separated by a partition wall 49, and the inside air passage 43 is arranged on the outside air side and the outside air passage 47 is arranged on the inside air side. The inside air passage 43 is in contact with the outside air via the outer wall 50 thereof, the outside air passage 47 is in contact with the inside air via the wall surface 11 of the housing 1, and further, in the region corresponding to the outside air passage 47 of the housing 1. A casing inner wall cooling fan 61 is provided which allows cooling air to flow along the inner surface of the wall surface 11. Therefore, the inside air passage 43 is cooled from both sides thereof through the partition wall 49 and the outer wall 50, so that the heat exchange efficiency is high. Moreover, the outside air fed through the outside air passage 47 cools the inside air through both the partition wall 49 and the wall surface 11 of the housing 1, and even along the inner surface of the wall surface 11 of the housing 1. Since the inside air is made to flow by the casing inner wall cooling fan 61 and this inside air is also actively cooled by the outside air passing through the outside air passage 47, the heat exchange efficiency is high also from this point.

【0016】第2実施例 図2参照 図は縦断面図であり、図1(a)との相違は外気通路47
に対応する領域において筐体1の壁面11の内面にそって
冷却風を流す筐体内壁冷却ファン61の流出口62に連通し
て冷却風ダクト63が設けられていることのみである。こ
のダクトにより、外気通路47に対応する領域において筐
体1の壁面11の内面にそって冷却風を流す筐体内壁冷却
ファン61の効果はさらに向上する。
Second Embodiment See FIG. 2 The drawing is a vertical sectional view, and the difference from FIG.
The cooling air duct 63 is provided so as to communicate with the outlet 62 of the housing inner wall cooling fan 61 that allows the cooling air to flow along the inner surface of the wall surface 11 of the housing 1 in the region corresponding to. With this duct, the effect of the casing inner wall cooling fan 61 that allows cooling air to flow along the inner surface of the wall surface 11 of the casing 1 in the region corresponding to the outside air passage 47 is further improved.

【0017】図3参照 図は縦断面図である。図2との相違は内気通路43に対応
する領域において、熱交換器4の外壁50にそって冷却風
を流すように熱交換器外壁冷却ファン71が設けられ、熱
交換器外壁冷却ファン71の流出口72に連通して熱交換器
4の外壁50にそって冷却風ダクト73が設けられているこ
とのみである。この熱交換器外壁冷却ファン71の存在に
より、この埋め込み箱型熱交換器の熱交換効率はさらに
向上する。
FIG. 3 is a vertical sectional view. 2 is different from FIG. 2 in that a heat exchanger outer wall cooling fan 71 is provided in a region corresponding to the inside air passage 43 so as to flow cooling air along the outer wall 50 of the heat exchanger 4, and the heat exchanger outer wall cooling fan 71 is A cooling air duct 73 is provided only along the outer wall 50 of the heat exchanger 4 so as to communicate with the outlet 72. The presence of the heat exchanger outer wall cooling fan 71 further improves the heat exchange efficiency of the embedded box heat exchanger.

【0018】[0018]

【発明の効果】以上説明したとおり、本発明に係る埋め
込み箱型熱交換器は、冷却される内気の通路が外気側に
設けられており、冷却する外気の通路が内気側に設けら
れており、しかも、筐体壁面の内面にそって冷却風を流
す筐体内壁冷却ファンが設けられ、また、この筐体内壁
冷却ファンに冷却風ダクトが設けられ、さらに、熱交換
器の外壁にそって冷却風を流す熱交換器外壁冷却ファン
と冷却風ダクトも設けられているので、熱交換効率が極
めて向上する。
As described above, in the embedded box heat exchanger according to the present invention, the passage of the inside air to be cooled is provided on the outside air side, and the passage of the outside air to be cooled is provided on the inside air side. In addition, a casing inner wall cooling fan that allows cooling air to flow along the inner surface of the casing wall surface is provided, and a cooling air duct is provided in this casing inner wall cooling fan, and further along the outer wall of the heat exchanger. Since a cooling fan for cooling the outer wall of the heat exchanger and a cooling air duct for flowing the cooling air are also provided, the heat exchange efficiency is significantly improved.

【図面の簡単な説明】[Brief description of drawings]

【図1】(a)は本発明の第1実施例に係る埋め込み箱
型熱交換器の縦断面図であり、(b)はそのB−B断面
図である。
FIG. 1 (a) is a vertical sectional view of an embedded box heat exchanger according to a first embodiment of the present invention, and FIG. 1 (b) is a sectional view taken along line BB thereof.

【図2】本発明の第2実施例に係る埋め込み箱型熱交換
器の縦断面図である。
FIG. 2 is a vertical sectional view of an embedded box heat exchanger according to a second embodiment of the present invention.

【図3】本発明の第3実施例に係る埋め込み箱型熱交換
器の縦断面図である。
FIG. 3 is a vertical sectional view of an embedded box heat exchanger according to a third embodiment of the present invention.

【図4】従来技術に係る埋め込み箱型熱交換器の縦断面
図である。
FIG. 4 is a vertical cross-sectional view of a buried box heat exchanger according to the related art.

【符号の説明】[Explanation of symbols]

1 筐体 11 筐体の壁面 2 従来技術に係る埋め込み箱型熱交換器 21 箱型熱交換器の外壁 22 内気吸入口 23 内気吸入用ファン 24 内気通路 25 内気排出口 26 外気吸入口 27 外気吸入用ファン 28 外気通路 29 外気排出口 30 内外気通路の隔壁 4 本発明の第1の実施例に係る熱交換器 41 内気吸入口 42 内気給送用ファン 43 内気通路 44 内気排出口 45 外気吸入口 46 外気給送用ファン 47 外気通路 48 外気排出口 49 熱交換器の隔壁 50 熱交換器の外壁 5 本発明の第2の実施例に係る熱交換器 6 本発明の第3の実施例に係る熱交換器 61 筐体内壁冷却ファン 62 筐体内壁冷却ファンの流出口 63 筐体内壁冷却ファンの冷却風ダクト 71 熱交換器外壁冷却ファン 72 熱交換器外壁冷却ファンの流出口 73 熱交換器外壁冷却ファンの冷却風ダクト 1 Case 11 Wall of Case 2 Embedded Box Heat Exchanger According to Prior Art 21 Outer Wall of Box Heat Exchanger 22 Inside Air Intake Port 23 Inside Air Intake Fan 24 Inside Air Passage 25 Inside Air Outlet 26 Outside Air Intake 27 Outside Air Intake Fan 28 outside air passage 29 outside air outlet 30 partition wall of inside and outside air passage 4 heat exchanger 41 according to the first embodiment of the present invention 41 inside air inlet 42 inside air feeding fan 43 inside air passage 44 inside air outlet 45 outside air inlet 46 Outside Air Supply Fan 47 Outside Air Passage 48 Outside Air Outlet 49 Partition Wall of Heat Exchanger 50 Outer Wall of Heat Exchanger 5 Heat Exchanger According to Second Embodiment of the Present Invention 6 According to Third Embodiment of the Present Invention Heat exchanger 61 Inner wall cooling fan 62 Outer wall cooling fan outlet 63 Inner wall cooling fan cooling air duct 71 Heat exchanger outer wall cooling fan 72 Outer heat exchanger cooling fan outlet 73 Outer heat exchanger wall Cooling fan cooling air duct

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 内気通路(43)と外気通路(47)とは、
隔壁(49)を介して、前記内気通路(43)が外気側とな
り前記外気通路(47)が内気側になるように配置されて
なり、 前記内気通路(43)と前記外気通路(47)とにはそれぞ
れ内気給送用ファン(42)または外気給送用ファン(4
6)が設けられてなり、 前記内気通路(43)と前記外気通路(47)とは、前記隔
壁(49)を介して熱交換するとゝもに、前記内気通路
(43)と外壁(50)との間及び前記外気通路(47)と筐
体(1)の壁面(11)とにおいても、熱交換することゝ
されてなり、 前記外気通路(47)に対応する領域において、前記筐体
(1)の壁面(11)の内面にそって冷却風を流すように
筐体内壁冷却ファン(61)が設けられてなることを特徴
とする熱交換器。
1. The inside air passage (43) and the outside air passage (47) are
The inside air passageway (43) is arranged so that the inside air passageway (43) is on the outside air side and the outside air passageway (47) is on the inside air side via the partition wall (49), and the inside air passageway (43) and the outside air passageway (47) are connected to each other. The internal air supply fan (42) or the external air supply fan (4
6) is provided, and when the inside air passage (43) and the outside air passage (47) exchange heat with each other through the partition wall (49), the inside air passage (43) and the outside wall (50) can be easily exchanged. And heat exchange between the outside air passage (47) and the wall surface (11) of the housing (1). In the region corresponding to the outside air passage (47), the housing ( A heat exchanger characterized in that a casing inner wall cooling fan (61) is provided so as to flow cooling air along the inner surface of the wall surface (11) of 1).
【請求項2】 前記筐体内壁冷却ファン(61)の流出口
(62)に連通して、前記外気通路(47)に対応する領域
において、前記筐体(1)の壁面(11)の内面にそって
冷却風ダクト(63)が設けられてなることを特徴とする
請求項(1)記載の熱交換器。
2. The inner surface of the wall surface (11) of the housing (1) in a region communicating with the outlet (62) of the housing inner wall cooling fan (61) and corresponding to the outside air passage (47). The heat exchanger according to claim (1), characterized in that a cooling air duct (63) is provided along the cooling air duct.
【請求項3】 前記内気通路(43)に対応する領域にお
いて、前記熱交換器(4)の外壁(50)にそって冷却風
を流すように熱交換器外壁冷却ファン(71)が設けら
れ、該熱交換器外壁冷却ファン(71)の流出口(72)に
連通して前記熱交換器(4)の外壁(50)にそって冷却
風ダクト(73)が設けられてなることを特徴とする請求
項(1)または(2)記載の熱交換器。
3. A heat exchanger outer wall cooling fan (71) is provided so as to flow cooling air along the outer wall (50) of the heat exchanger (4) in a region corresponding to the inside air passageway (43). A cooling air duct (73) is provided so as to communicate with the outlet (72) of the heat exchanger outer wall cooling fan (71) and along the outer wall (50) of the heat exchanger (4). The heat exchanger according to claim (1) or (2).
JP26082891A 1991-10-08 1991-10-08 Heat exchanger Expired - Fee Related JP2686681B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26082891A JP2686681B2 (en) 1991-10-08 1991-10-08 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26082891A JP2686681B2 (en) 1991-10-08 1991-10-08 Heat exchanger

Publications (2)

Publication Number Publication Date
JPH0599578A true JPH0599578A (en) 1993-04-20
JP2686681B2 JP2686681B2 (en) 1997-12-08

Family

ID=17353325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26082891A Expired - Fee Related JP2686681B2 (en) 1991-10-08 1991-10-08 Heat exchanger

Country Status (1)

Country Link
JP (1) JP2686681B2 (en)

Also Published As

Publication number Publication date
JP2686681B2 (en) 1997-12-08

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