JPH0716027Y2 - Fan shroud - Google Patents
Fan shroudInfo
- Publication number
- JPH0716027Y2 JPH0716027Y2 JP1988121811U JP12181188U JPH0716027Y2 JP H0716027 Y2 JPH0716027 Y2 JP H0716027Y2 JP 1988121811 U JP1988121811 U JP 1988121811U JP 12181188 U JP12181188 U JP 12181188U JP H0716027 Y2 JPH0716027 Y2 JP H0716027Y2
- Authority
- JP
- Japan
- Prior art keywords
- fan
- heat exchanger
- air
- fan shroud
- vehicle
- 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
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、車輌の前面に配置される熱交換器の押込み
（プッシャ）タイプのファンに装着されるファンシュラ
ウドに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a fan shroud mounted on a pusher type fan of a heat exchanger arranged on the front surface of a vehicle.
（従来の技術） 一般に、エンジン横置きのFF（フロントエンジン・フロ
ントドライブ）車にターボチャージャ等を装着すると、
エンジン冷却系のラジエータとエキゾーストマニホール
ド間にスペース的な余裕が無くなる。このため、車輌の
低速定行時に、ラジエータ及びエアコンディショナのコ
ンデンサに空気を送るためのファンの装着位置に、レイ
アウト上の工夫が必要となる。(Prior Art) Generally, when a turbocharger or the like is mounted on an FF (front engine / front drive) vehicle with a horizontal engine,
There is no space available between the radiator of the engine cooling system and the exhaust manifold. For this reason, it is necessary to devise a layout at the mounting position of the fan for sending air to the radiator and the condenser of the air conditioner when the vehicle is traveling at a low speed.
第３図は従来のこれらのレイアウトを示し、ラジエータ
２とコンデンサ３で構成される熱交換器１は、エンジン
ルーム８の前端部に配置されている。車輌の低速走行時
において、熱交換器１の図中略左半部のコア間に冷却空
気を通過させるのは、ラジエータ２の後面に装着された
吸込み（空気を前方より吸込む）タイプのラジエータフ
ァン４であり、又、図中略右半部のコア間に冷却空気を
通過させるのは、コンデンサ３の前面に装着された押込
み（空気を前方に押込む）タイプのコンデンサファン５
である。各ファン4,5には夫々ファンシュラウド6,7が設
けられており、コンデンサファン５のファンシュラウド
７は第４図に示すようにコンデンサファン５の外周を囲
むリングシュラウドで、コンデンサファン５により発生
した気流がラジエータ２及びコンデンサ３のコア間をス
ムーズに流れるようにしている。FIG. 3 shows these conventional layouts, and the heat exchanger 1 composed of the radiator 2 and the condenser 3 is arranged at the front end of the engine room 8. When the vehicle is running at low speed, the cooling air is passed between the cores in the substantially left half of the figure of the heat exchanger 1 because the radiator fan 4 mounted on the rear surface of the radiator 2 (suctions air from the front). The cooling air is allowed to pass between the cores in the substantially right half of the figure by the push-in (air push-in) type condenser fan 5 mounted on the front surface of the condenser 3.
Is. Each fan 4, 5 is provided with a fan shroud 6, 7, respectively, and the fan shroud 7 of the condenser fan 5 is a ring shroud surrounding the outer circumference of the condenser fan 5 as shown in FIG. The generated airflow smoothly flows between the cores of the radiator 2 and the condenser 3.
（考案が解決しようとする課題） ところで、エンジンルーム８内には各ファン4,5及び車
輌の走行等により外気が送込まれるので、エンジンルー
ム８内が外気圧に比べ高圧になり、アイドル時及び低速
時にはファン4,5の影響を受けない場所でエンジンルー
ム８内から外部への逆流が生じてしまう。従って、この
逆流を阻止しなければエンジンルーム８内の高温の空気
が熱交換器１のコア間を逆流して熱交換効率が低下して
しまう。車輌の高速走行時においては走行風により、低
速走行時においては主に各ファン4,5の送風力により、
外気をエンジンルーム８内に送込んでいる。(Problems to be solved by the invention) By the way, since the outside air is sent into the engine room 8 by the traveling of the fans 4 and 5 and the vehicle, the inside of the engine room 8 becomes higher in pressure than the outside air pressure, and at the time of idling. In addition, at low speed, a backflow occurs from the inside of the engine room 8 to the outside in a place that is not affected by the fans 4 and 5. Therefore, if this backflow is not blocked, the hot air in the engine room 8 will backflow between the cores of the heat exchanger 1, and the heat exchange efficiency will fall. When the vehicle is running at high speed, it is driven by the wind, and when it is running at low speed, it is mainly the wind power sent by the fans 4 and 5,
The outside air is sent into the engine room 8.
ここで、コンデンサファン５の環状のファンシュラウド
７の外側の空気の流れに注目すると、ラジエータファン
４側の流れには、ラジエータファン４の送風力が作用し
ているのでエンジンルーム８内の高温空気が逆流するこ
とがないが、ラジエータファン４から遠い側、即ち熱交
換器１の右端近傍の空気の流れには、各ファン4,5の送
風力が作用しない。従って、熱交換器１のコア間を通過
する空気の流れは第３図中矢印のようになる。つまり、
熱交換器１の右端をエンジンルーム８内の高温の空気が
逆流し、更に、この逆流した空気をコンデンサファン５
が再び熱交換器１に送込むことになり、熱交換器１にお
ける熱交換の効率が低下するという問題がある。Here, paying attention to the air flow outside the annular fan shroud 7 of the condenser fan 5, since the wind force of the radiator fan 4 acts on the flow on the radiator fan 4 side, the high temperature air in the engine room 8 Does not flow backwards, but the air flow of the fans 4 and 5 does not act on the air flow far from the radiator fan 4, that is, the air flow near the right end of the heat exchanger 1. Therefore, the flow of air passing between the cores of the heat exchanger 1 is as shown by the arrow in FIG. That is,
The high temperature air in the engine room 8 flows backward through the right end of the heat exchanger 1, and the air that has flowed backward flows through the condenser fan 5
Is again sent to the heat exchanger 1, and there is a problem that the efficiency of heat exchange in the heat exchanger 1 is reduced.
本考案は上述の問題点を解決するためになされたもの
で、熱交換器を通過する空気の逆流を防止する、押込み
タイプのファンのファンシュラウドを提供することを目
的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a fan shroud of a push-type fan that prevents backflow of air passing through a heat exchanger.
（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考案によれば、車両に搭載
された横置きエンジンの車両前方側の側壁に近接して設
けられた熱交換器の前面の一側に押込みタイプの第１の
ファンを、後面の他側に吸込みタイプの第２のファンを
夫々配設し、前記第１のファンの外周に取付けるファン
シュラウドにおいて、前記第１のファンの外周を車幅方
向で前記一側と前記他側とに二分した内の前記他側の半
部を半円弧状に囲むと共に、前記第１のファンの外周の
前記一側の半部と前記熱交換器の前記一側の前面周縁と
の間を覆う構成としたものである。(Means for Solving the Problems) In order to achieve the above object, according to the present invention, a front surface of a heat exchanger provided near a side wall on a vehicle front side of a horizontal engine mounted on a vehicle is provided. A first push-type fan on the side and a second suction-type fan on the other side of the rear face, and in the fan shroud attached to the outer circumference of the first fan, the outer circumference of the first fan is The other half of the one half divided into the one half and the other half in the vehicle width direction is surrounded by a semi-circular arc, and the half half of the outer circumference of the first fan and the heat exchanger. Is configured so as to cover a space between the one side and the front edge.
（作用） 第１及び第２のファンは、熱交換器を通過する空気の流
れを発生させる。このとき、第１のファンのファンシュ
ラウドは、当該第１のファンシュラウドの外周の一側の
半部と熱交換器の一側の前面周縁との間を覆っている部
分においてエンジンルーム内側から熱交換器前面側への
空気の流れを阻止する。(Operation) The first and second fans generate a flow of air passing through the heat exchanger. At this time, the fan shroud of the first fan receives heat from the inside of the engine room in a portion that covers between a half part on one side of the outer periphery of the first fan shroud and a front peripheral edge on one side of the heat exchanger. Block the flow of air to the front side of the exchanger.
（実施例） 以下本考案の一実施例を添付図面に基づいて詳述する。
尚、第３図及び第４図の部材と同一の部材には同一の符
号を付して、これらの説明を省略する。Embodiment An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The same members as those in FIGS. 3 and 4 are designated by the same reference numerals, and the description thereof will be omitted.
第１図は本考案を適用したファンシュラウドを示し、フ
ァンシュラウド10は、円環部10aと覆部10bから構成さ
れ、これらは一体成形されている。円環部10aはコンデ
ンサファン５の外周を取り囲むように短寸の円筒状をな
し、該円環部の10aの、右半部（ラジエータファン４よ
り遠い側の半部）のコンデンサ３側の周縁が空気の流れ
方向に拡径して覆部10bに滑らかに接続されている。覆
部10bは、ラジエータファン４側から遠い側（図中右
側）のコンデンサファン５の外周に形成され、コンデン
サ３の右端近傍の前面形状に合致して、これを覆ってい
る。FIG. 1 shows a fan shroud to which the present invention is applied. The fan shroud 10 is composed of an annular portion 10a and a cover portion 10b, which are integrally molded. The annular portion 10a is formed in a short cylindrical shape so as to surround the outer periphery of the condenser fan 5, and the periphery of the right half portion (half portion farther from the radiator fan 4) of the annular portion 10a on the condenser 3 side. Are expanded in the air flow direction and are smoothly connected to the cover 10b. The cover portion 10b is formed on the outer periphery of the condenser fan 5 on the side far from the radiator fan 4 side (right side in the drawing), conforms to the shape of the front surface of the condenser 3 near the right end, and covers this.
以下作用を説明する。The operation will be described below.
第２図は熱交換器１のコア間を通過する気流を示し、車
輌の低速走行時においては、走行風が弱いので、各ファ
ン4,5によりコア間を通過する気流を発生させる。この
とき、熱交換器１の右端部に注目すると、ファンシュラ
ウド７の円環部10aがなだらかに拡径すると共に、覆部1
0bの形状がコンデンサ３の右端部近傍の前面形状に合致
しているので、コア間を通過する空気の流れは全てエン
ジンルーム８外よりエンジンルーム８内への流れとな
る。つまり、気流の逆流が防止されると共に、エンジン
ルーム内の空気より低温の外気のみが熱交換器１のコア
間を通過する。FIG. 2 shows the airflow passing between the cores of the heat exchanger 1. When the vehicle is running at low speed, the running wind is weak, so that the fans 4 and 5 generate the airflow passing between the cores. At this time, paying attention to the right end portion of the heat exchanger 1, the annular portion 10a of the fan shroud 7 gradually expands in diameter and the cover portion 1
Since the shape of 0b matches the shape of the front surface in the vicinity of the right end portion of the capacitor 3, the flow of air passing between the cores is all from outside the engine room 8 to inside the engine room 8. That is, the backflow of the airflow is prevented, and only the outside air having a temperature lower than that of the air in the engine room passes between the cores of the heat exchanger 1.
車輌の高速走行時においては、各ファン4,5及び各ファ
ンシュラウド6,10等は走行風による冷却にとっては抵抗
となるが、ファンシュラウド10の略左半部は円環部10a
のみで覆部10bがないので、この部分における空気流入
量は従来と変りはない。一方、ファンシュラウド10の略
右半部は覆部10bによりコンデンサ３の前面が覆われる
ので、従来のファンシュラウド７に比べ通過する空気流
れの抵抗が増加するが、低速走行時におけるコア間を通
過する外気の流入量の増加及び、高温空気の逆流による
熱交換効率の低下が防止されることを考慮すると、総合
的にはファンシュラウド10の方がファンシュラウド７に
比べ有利になる。When the vehicle is running at high speed, the fans 4, 5 and the fan shrouds 6, 10 and the like are resistant to cooling by the running wind, but the left half of the fan shroud 10 has an annular portion 10a.
Since only the cover 10b is not provided, the air inflow amount in this portion is the same as the conventional one. On the other hand, the substantially right half portion of the fan shroud 10 covers the front surface of the condenser 3 with the cover portion 10b, so that the resistance of the air flow passing therethrough increases as compared with the conventional fan shroud 7, but it passes between the cores at low speed running. Considering that the increase of the inflow of outside air and the reduction of the heat exchange efficiency due to the backflow of high temperature air are prevented, the fan shroud 10 is more advantageous than the fan shroud 7 as a whole.
尚、本実施例においては、ラジエータ及びコンデンサか
ら構成される熱交換器に本考案のファンシュラウドを適
用したがこれに限るものではなく、ラジエータ或いはコ
ンデンサだけの熱交換器に本考案を適用しても良い。In this embodiment, the fan shroud of the present invention is applied to the heat exchanger composed of the radiator and the condenser, but the present invention is not limited to this, and the present invention is applied to the heat exchanger of only the radiator or the condenser. Is also good.
（考案の効果） 以上説明したように本考案によれば、第１のファンの外
周を車幅後方で当該第１のファンが設けられている一側
と第２のファンが設けられている他側とに二分した内の
他側の半部を半円弧状に囲むと共に、第１のファンの外
周の一側の半部と熱交換器の一側の前面周縁との間を覆
うことにより、エンジンルーム内の一側から熱交換器前
面への空気の逆流を防止できる。このため、熱交換器に
おける熱交換の効率が向上するという優れた効果があ
る。(Effects of the Invention) As described above, according to the present invention, one side where the first fan is provided and the second fan is provided behind the outer periphery of the first fan in the vehicle width direction. By surrounding a half part on the other side in a half arc into two parts, and by covering between the half part on one side of the outer periphery of the first fan and the front peripheral edge on one side of the heat exchanger, Backflow of air from one side in the engine room to the front of the heat exchanger can be prevented. Therefore, there is an excellent effect that the efficiency of heat exchange in the heat exchanger is improved.
第１図は本考案を適用したファンシュラウドを示す斜視
図、第２図は第１図のファンシュラウドを備える熱交換
器を示し、その空気の流れを示す概略構成図、第３図は
従来のファンシュラウドを備える熱交換器を示し、その
空気の流れを示す概略構成図、第４図は従来のファンシ
ュラウドの斜視図である。 １……熱交換器、２……ラジエータ、３……コンデン
サ、４……ラジエータファン（第２のファン）、５……
コンデンサファン（第１のファン）、10……ファンシュ
ラウド。FIG. 1 is a perspective view showing a fan shroud to which the present invention is applied, FIG. 2 is a heat exchanger equipped with the fan shroud of FIG. FIG. 4 is a schematic configuration diagram showing a heat exchanger provided with a fan shroud and showing an air flow thereof, and FIG. 4 is a perspective view of a conventional fan shroud. 1 ... Heat exchanger, 2 ... Radiator, 3 ... Condenser, 4 ... Radiator fan (second fan), 5 ...
Condenser fan (first fan), 10 ... Fan shroud.
Claims (1)
方側の側壁に近接して設けられた熱交換器の前面の一側
に押込みタイプの第１のファンを、後面の他側に吸込み
タイプの第２のファンを夫々配設し、前記第１のファン
の外周に取付けるファンシュラウドにおいて、前記第１
のファンの外周を車幅方向で前記一側と前記他側とに二
分した内の前記他側の半部を半円弧状に囲むと共に、前
記第１のファンの外周の前記一側の半部と前記熱交換器
の前記一側の前面周縁との間を覆うことを特徴とするフ
ァンシュラウド。1. A first fan of a push-in type is sucked into one side of a front surface of a heat exchanger provided in the vicinity of a side wall on a front side of the vehicle of a transversely mounted engine mounted in the vehicle, and is sucked into the other side of a rear surface. A fan shroud in which second fans of the type are respectively disposed and attached to the outer periphery of the first fan,
The outer periphery of the fan is divided into the one side and the other side in the vehicle width direction, and the other half is enclosed in a semi-circular shape, and the outer half of the first fan is the one half. A fan shroud covering a space between the heat exchanger and a front edge of the heat exchanger on one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988121811U JPH0716027Y2 (en) | 1988-09-16 | 1988-09-16 | Fan shroud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988121811U JPH0716027Y2 (en) | 1988-09-16 | 1988-09-16 | Fan shroud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0243423U JPH0243423U (en) | 1990-03-26 |
| JPH0716027Y2 true JPH0716027Y2 (en) | 1995-04-12 |
Family
ID=31369162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988121811U Expired - Lifetime JPH0716027Y2 (en) | 1988-09-16 | 1988-09-16 | Fan shroud |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716027Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0683744B2 (en) * | 1985-10-31 | 1994-10-26 | 株式会社ソフイア | Amusement machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH036820Y2 (en) * | 1985-10-23 | 1991-02-20 |
-
1988
- 1988-09-16 JP JP1988121811U patent/JPH0716027Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0243423U (en) | 1990-03-26 |
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