JPS60198326A - Water-cooled air cooler - Google Patents
Water-cooled air coolerInfo
- Publication number
- JPS60198326A JPS60198326A JP59052214A JP5221484A JPS60198326A JP S60198326 A JPS60198326 A JP S60198326A JP 59052214 A JP59052214 A JP 59052214A JP 5221484 A JP5221484 A JP 5221484A JP S60198326 A JPS60198326 A JP S60198326A
- Authority
- JP
- Japan
- Prior art keywords
- water
- intercooler
- condenser
- air
- temperature
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0468—Water separation or drainage means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0437—Liquid cooled heat exchangers
- F02B29/0443—Layout of the coolant or refrigerant circuit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
この発明に係る水冷式空気冷却装置は、エンジンの性能
を向上させるための過給機により温麻が上昇した空気を
冷却するのに使用される。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) A water-cooled air cooling device according to the present invention is used to cool air whose temperature has been increased by a supercharger for improving engine performance.
（発明の背景）
近年自動車用エンジンの出力を、排気量を増大させるこ
となく向上させるため、ターボチャージャーと呼ばれる
過給機を使用して、シリンダ内に送り込む空気の量を増
すようにしている。ところが、過給機により空気を圧縮
し更にシリンダ内に送り込むと、この空気の温度は断熱
圧縮とインレットパイプ内面やタービン翼による摩擦と
により上昇してしまう。このように上昇した空気の温度
は、周囲温度等各種条件によって異なるが、通常１２０
−１８０ ’０程度にもなる。シリンダ内に送り込む空
気の温度が上昇するとガソリンエンジンの場合はノッキ
ングが起き易くなるだけでなく、空気自体の体積が膨張
することによりその分シリンダ内への充填効率が低下す
るため好ましくない。(Background of the Invention) In recent years, in order to improve the output of automobile engines without increasing the displacement, superchargers called turbochargers have been used to increase the amount of air sent into the cylinders. However, when air is compressed by a supercharger and further fed into the cylinder, the temperature of this air increases due to adiabatic compression and friction caused by the inner surface of the inlet pipe and the turbine blades. The temperature of the air that has risen in this way varies depending on various conditions such as the ambient temperature, but it is usually 120°C.
It can be as high as -180'0. When the temperature of the air sent into the cylinder increases, in the case of a gasoline engine, not only does knocking become more likely to occur, but the volume of the air itself expands, which reduces the filling efficiency into the cylinder, which is undesirable.
このため、従来から過給機を通過して温度上昇した空気
を、冷却してからシリンダ内に送り込む空気冷却装置が
使用されている。空気冷却装置には、空気を冷却するの
に水を使用する水冷式のものと、外気を使用する空冷式
のものとがあるが、水冷式空気冷却装置の場合は、冷却
用の水と過給用の空気との熱交換を行なうインタークー
ラと、空気との熱交換により発生した水蒸気を冷却し凝
縮させて再びインタークーラに還流させるコンデンサと
からなっている。For this reason, conventionally, an air cooling device has been used in which air whose temperature has increased after passing through a supercharger is cooled and then sent into a cylinder. There are two types of air cooling systems: water-cooled types that use water to cool the air, and air-cooled types that use outside air. It consists of an intercooler that exchanges heat with the supply air, and a condenser that cools and condenses the water vapor generated by the heat exchange with the air and returns it to the intercooler.
即ち、第１図に示すように、吸入した外気を圧縮する過
給機１の後方にインタークーラ２を設け、このインター
クーラ２には冷却用の水を流通自在としている。第１図
に於いて、細い実線はエンジン（図示せず）に送られる
空気が流れる流路を、太い実線はこの空気を冷却するた
めの水（水ノル気を含む）が流れる流路をそれぞれ示し
ている。過給機ｌにより圧縮され温度上昇した空気は、
インタークーラ２を通過する間に、このインタークーラ
２内を流通する水との間で熱交換を行なって冷却され、
温度降下した後エンジンの燃焼室に送られる。一方、イ
ンタークーラ２内で空気の熱を奪い昇温した水は、蒸発
し水蒸気となってコンデンサ３に送られる。コンデンサ
３では高温の水蒸気と外気との熱交換が行なわれ、温度
低下した水蒸気は凝縮しこのコンデンサ３の下部に溜る
。コンデンサ３の下部に溜った凝縮水はポンプ４に吸引
され、再びインタークーラ２内に送られて空気の冷却に
用いられる。That is, as shown in FIG. 1, an intercooler 2 is provided behind a supercharger 1 that compresses drawn outside air, and water for cooling can freely flow through the intercooler 2. In Figure 1, the thin solid line represents the flow path through which air sent to the engine (not shown) flows, and the thick solid line represents the flow path through which water (including water and air) flows to cool this air. It shows. The air compressed by the supercharger and raised in temperature is
While passing through the intercooler 2, it exchanges heat with the water flowing through the intercooler 2 and is cooled.
After the temperature drops, it is sent to the combustion chamber of the engine. On the other hand, water that absorbs heat from the air in the intercooler 2 and rises in temperature evaporates and becomes water vapor and is sent to the condenser 3. In the condenser 3, heat is exchanged between the high temperature water vapor and the outside air, and the water vapor whose temperature has decreased is condensed and accumulated in the lower part of the condenser 3. The condensed water collected at the bottom of the condenser 3 is sucked into the pump 4, and sent into the intercooler 2 again to be used for cooling the air.
水冷式の空気冷却装置は以上に述べた通り構成され作用
するが、エンジンが連続的に運転された場合、インター
クーラ２内では冷却用の水が連続的に沸騰するため、こ
のインタークーラ２内の圧力が１気圧の場合、水温がほ
ぼ１００°Ｃに保たれることになる。このように、水温
が１００°Ｃになると、冷却すべき空気の温度と水温と
にあまり差がなくなり、空気を冷却する効果が不十分と
なるため、コンデンサ３内で水蒸気を凝縮させることに
より、コンデンサ３及びインタークーラ２内の圧力を低
下させ、沸騰温度を降下させることでインタークーラ２
内の水温を低下させている。ところが単に圧力を低下さ
せるだけでは、発生した水蒸気の凝縮温度が低下して外
気温との差が小さくなり、コンデンサ３に送られた水蒸
気が凝縮し難くなってしまう。The water-cooled air cooling system is configured and operates as described above, but when the engine is continuously operated, the cooling water in the intercooler 2 boils continuously, so the water inside the intercooler 2 boils. If the pressure is 1 atm, the water temperature will be maintained at approximately 100°C. In this way, when the water temperature reaches 100°C, there is not much difference between the temperature of the air to be cooled and the water temperature, and the effect of cooling the air becomes insufficient. Therefore, by condensing the water vapor in the condenser 3, By lowering the pressure inside the condenser 3 and the intercooler 2 and lowering the boiling temperature, the intercooler 2
It lowers the water temperature inside. However, if the pressure is simply lowered, the condensation temperature of the generated water vapor will be lowered and the difference from the outside temperature will become smaller, making it difficult for the water vapor sent to the condenser 3 to condense.
（発明の目的）
本発明は上述のような事情に鑑み、過給機により圧縮さ
れた空気の冷却を効率良く行なえる水冷式空気冷却装置
を提供する−ことを目的としている。(Objective of the Invention) In view of the above-mentioned circumstances, an object of the present invention is to provide a water-cooled air cooling device that can efficiently cool air compressed by a supercharger.
（発明の構成）
本発明の水冷式空気冷却装置は、空気を冷却するインタ
ークーラの給水口とコンデンサとの間に弁を設け、イン
タークーラの蒸気吐出口と上記コンデンサとの間にはモ
ータにより駆動される蒸気圧縮機を設けており、弁の開
閉をインタークーラとコンデンサとの水位に基き制御し
ている。コンデンサ３からインタークーラ２に水を送る
ポンプ４（第１図）は省略している。(Structure of the Invention) In the water-cooled air cooling device of the present invention, a valve is provided between a water supply port of an intercooler for cooling air and a condenser, and a valve is provided between a steam discharge port of the intercooler and the condenser by a motor. A driven vapor compressor is provided, and the opening and closing of the valves are controlled based on the water levels in the intercooler and condenser. A pump 4 (FIG. 1) that sends water from the condenser 3 to the intercooler 2 is omitted.
即ち、第２図に示すように、コンデンサ３の底部に溜っ
た凝縮水をインタークーラ２に送るための給水管５の途
中に弁６を設けている。一方、インタークーラ２内で発
生した水蒸気をコンデンサ３に送るための蒸気管７の途
中には、モータ８により駆動される蒸気圧縮機（過給機
ｌと同様構成の遠心圧縮機が好ましい。）９が設けられ
ている。That is, as shown in FIG. 2, a valve 6 is provided in the middle of a water supply pipe 5 for sending condensed water accumulated at the bottom of the condenser 3 to the intercooler 2. On the other hand, a vapor compressor (preferably a centrifugal compressor having the same configuration as the supercharger 1) driven by a motor 8 is installed in the middle of the steam pipe 7 for sending the water vapor generated in the intercooler 2 to the condenser 3. 9 is provided.
この蒸気圧縮機９は、インタークーラ２内で発生し蒸気
管７内をコンデンサ３に向けて送られる水蒸気を圧縮す
ることにより、コンデンサ３内の圧力を上昇させ、この
コンデンサ３内に於ける水蒸気の凝縮温度を上昇させる
役目をする。このため、コンデンサ３内での水蒸気の凝
縮温度とコンデンサ３外を流通する外気の温度との差が
大きくなってコンデンサ３内に送り込まれた水蒸気が凝
縮し易くなる。This vapor compressor 9 increases the pressure in the condenser 3 by compressing the water vapor generated in the intercooler 2 and sent toward the condenser 3 in the steam pipe 7, and the water vapor in the condenser 3 increases. serves to increase the condensation temperature of Therefore, the difference between the condensation temperature of the water vapor inside the condenser 3 and the temperature of the outside air flowing outside the condenser 3 increases, and the water vapor sent into the condenser 3 becomes more likely to condense.
一方、コンデンサ３とインタークーラ２との間に設けた
弁６は、コンデンサ３から押し出され給水管５内を送ら
れて来る水の通路を開閉し、インタークーラ２内の水位
とコンデンサ３内の水位とをほぼ一定に保つ役目を持つ
ものである。即ち、インタークーラ２内とコンデンサ３
内とにはそれぞれ水位センサ１０．１１が設けられてお
り、両水位センサ１０，１１の出力信号が制御器１２に
人力されている。この制御器１２は、インタークーラ２
内とコンデンサ３内との水位がほぼ一定に保たれるよう
に給水管５の途中の弁６に信号を送り、この弁６の開閉
を制御するもので、インタークーラ２内の水位が低くコ
ンデンサ３内の水位が高い場合には弁６を開き、反対に
インタークーラ２内の水位が高くコンデンサ３内の水位
が低い場合には弁６を閉じる。但し、インタークーラ２
とコンデンサ３とに貯溜された水量の和は僅と変わらな
いため、水位センサはインタークーラ２とコンデンサ３
との一方にのみ設けても良く、冷却装置内に注入する水
量さえ適当であれば、一方の水位を制御すれば他方の水
位も適正に保たれる。On the other hand, a valve 6 provided between the condenser 3 and the intercooler 2 opens and closes the passage of water pushed out from the condenser 3 and sent through the water supply pipe 5, thereby increasing the water level in the intercooler 2 and the condenser 3. It has the role of keeping the water level almost constant. That is, inside the intercooler 2 and the capacitor 3
Water level sensors 10 and 11 are provided inside and outside, respectively, and output signals from both water level sensors 10 and 11 are input manually to a controller 12. This controller 12 controls the intercooler 2
This system sends a signal to a valve 6 in the middle of the water supply pipe 5 and controls the opening and closing of this valve 6 so that the water level inside the intercooler 2 and the inside of the condenser 3 is kept almost constant. When the water level in the intercooler 3 is high, the valve 6 is opened, and conversely, when the water level in the intercooler 2 is high and the water level in the condenser 3 is low, the valve 6 is closed. However, intercooler 2
Since the sum of the amount of water stored in intercooler 2 and capacitor 3 does not change slightly, the water level sensor is connected to intercooler 2 and capacitor 3.
It may be provided only on one side, and as long as the amount of water injected into the cooling device is appropriate, controlling the water level on one side will keep the water level on the other side at an appropriate level.
（発明の作用）
−Ｌ述のように構成される本発明の水冷式空気冷却装置
の作用は次の通りである。(Operation of the invention) The operation of the water-cooled air cooling device of the present invention configured as described above is as follows.
まず、インタークーラ２内とコンデンサ３内とに適量の
水がある場合、水位センサ１０．１１からの信号に基づ
いて弁６が閉じられた状態となる。こめ状態に於いては
、モータ８により駆動される蒸気圧縮機９によってイン
タークーラ２内で発生した水蒸気が吸引され、このイン
タークーラ２内の圧力、が低下する。この結果、インタ
ークーラ２内に貯溜された水の沸騰温度が低下して水自
身の温度も低下する。この結果、インタークーラ２を通
過する空気の温度と水温との差が大きくなり、過給機ｌ
を通過して温度上昇した空気の冷却を効率良く行なえる
。First, when there is a suitable amount of water in the intercooler 2 and the condenser 3, the valve 6 is closed based on the signal from the water level sensor 10.11. In the compressed state, water vapor generated within the intercooler 2 is sucked by the vapor compressor 9 driven by the motor 8, and the pressure within the intercooler 2 is reduced. As a result, the boiling temperature of the water stored in the intercooler 2 decreases, and the temperature of the water itself also decreases. As a result, the difference between the temperature of the air passing through the intercooler 2 and the water temperature increases, causing the turbocharger l
It is possible to efficiently cool the air whose temperature has increased as it passes through the air.
一方、コンデンサ３には蒸気圧縮機９を通過して圧力が
一ヒ昇した水蒸気が送り込まれるため、このコンデンサ
３内に於ける水蒸気の凝縮温度が上昇し、凝縮温度と外
気温度との差が大きくなって水蒸気の凝縮液化が効率良
く行なわれる。On the other hand, since the steam whose pressure has been increased by passing through the vapor compressor 9 is sent to the condenser 3, the condensation temperature of the steam in the condenser 3 increases, and the difference between the condensation temperature and the outside air temperature increases. As the size increases, water vapor can be condensed and liquefied efficiently.
次いで、インタークーラ２内の水量が減少し、コンデン
サ３内の水量が増大した場合、水位センサ１０．１１か
らの信号に基いて弁６が開けられ、コンデンサ３の底部
に溜まった凝縮水がコンデンサ３内の圧力に押されてイ
ンタークーラ２内に送り込まれる。インタークーラ２内
の水位が適正値にまで上昇すると、水位センサ１０から
の信号により弁６が閉じられる。この状態では、コンデ
ンサ１２の底部には未だ凝縮水が残留しているため、こ
のコンデンサ１２内の高圧の蒸気がインタークーラ２内
にまで進入することはなく、弁６ 。Next, when the amount of water in the intercooler 2 decreases and the amount of water in the condenser 3 increases, the valve 6 is opened based on the signal from the water level sensor 10.11, and the condensed water accumulated at the bottom of the condenser 3 flows into the condenser. It is pushed by the pressure inside 3 and sent into the intercooler 2. When the water level in intercooler 2 rises to an appropriate value, valve 6 is closed by a signal from water level sensor 10. In this state, since condensed water still remains at the bottom of the condenser 12, the high-pressure steam in the condenser 12 does not enter the intercooler 2, and the valve 6.
が開いてインタークーラ２内に給水する間にこのインタ
ークーラ２内の圧力が上昇することは殆どない。The pressure inside the intercooler 2 hardly increases while it is opened and water is supplied into the intercooler 2.
なお、上述の説明に於いては、弁６として開閉のみを切
換えられるものを使用した例について述べたが、弁６と
して開閉だけでなく開度の調節自在な膨張弁のようなも
のを使用することもできる。この場合、制御器１２によ
り弁６の開度を調節し、インタークーラ２内とコンデン
サ３内との水位を一定に保つ。In addition, in the above explanation, an example was described in which a valve 6 that can only be switched between opening and closing is used, but as the valve 6, it is also possible to use something like an expansion valve that can not only open and close but also adjust the degree of opening. You can also do that. In this case, the opening degree of the valve 6 is adjusted by the controller 12 to keep the water levels in the intercooler 2 and the condenser 3 constant.
（発明の効果）
本発明の水冷式空気冷却装置は以上に述べた通り構成さ
れ作用するので、内部に注入する水量を適正にさえすれ
ば、エンジンの運転時にはインタークーラの内部は低圧
に、コンデンサの内部は高圧に保持され、インタークー
ラとコンデンサとがそれぞれ最適の条件で運転される結
果、過給機を通過後に昇温した空気の冷却を極めて効率
良く行なうことができる。(Effects of the Invention) The water-cooled air cooling device of the present invention is configured and operates as described above, so that as long as the amount of water injected into the interior is appropriate, the pressure inside the intercooler is low when the engine is running, and the pressure inside the intercooler is low. The interior of the turbocharger is maintained at high pressure, and the intercooler and condenser are each operated under optimal conditions, making it possible to extremely efficiently cool the air that has risen in temperature after passing through the supercharger.
第１図は従来の、第２図は本考案のそれぞれ空気冷却装
置を示す略図である。
１：過給機、２：インタークーラ、３：コンデンサ、４
：ポンプ、５：給水管、６：弁、７二蒸気管、８：モー
タ、９：蒸気圧縮機、１０．１１：水位センサ、１２：
制御器。FIG. 1 is a schematic diagram showing a conventional air cooling device, and FIG. 2 is a schematic diagram showing an air cooling device according to the present invention. 1: Supercharger, 2: Intercooler, 3: Capacitor, 4
: Pump, 5: Water supply pipe, 6: Valve, 7 Steam pipe, 8: Motor, 9: Steam compressor, 10.11: Water level sensor, 12:
controller.
Claims (1)
わせることにより低下させるインタークーラと、このイ
ンタークーラ内で発生した水蒸気を外気との間で熱交換
を行なわせることで凝縮させ上記インタークーラに還流
させるコンデンサとから成る水冷式空気冷却装置に於い
て、インタークーラの水蒸気出口とコンデンサの入口と
を結ぶ蒸気管の途中に蒸気圧縮機を設け、コンデンサの
底部に設けた出口とインタークーラの底部に設けた給水
口とを結ぶ給水管の途中には、インタークーラ内の水位
が低下した場合又はコンデンサ内の水位が上昇した場合
にのみ開く弁を設けたことを特徴とする水冷式空気冷却
装置。An intercooler lowers the temperature of the air after passing through the turbocharger by exchanging heat with water, and an intercooler that exchanges heat between the water vapor generated within the intercooler and the outside air. In a water-cooled air cooling device consisting of a condenser that condenses water and returns it to the intercooler, a vapor compressor is installed in the middle of a steam pipe connecting the steam outlet of the intercooler and the inlet of the condenser, and the steam compressor is installed at the bottom of the condenser. The water supply pipe connecting the outlet and the water supply port provided at the bottom of the intercooler is equipped with a valve that opens only when the water level in the intercooler drops or the water level in the condenser rises. water-cooled air cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59052214A JPS60198326A (en) | 1984-03-21 | 1984-03-21 | Water-cooled air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59052214A JPS60198326A (en) | 1984-03-21 | 1984-03-21 | Water-cooled air cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60198326A true JPS60198326A (en) | 1985-10-07 |
Family
ID=12908503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59052214A Pending JPS60198326A (en) | 1984-03-21 | 1984-03-21 | Water-cooled air cooler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60198326A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001092711A3 (en) * | 2000-05-26 | 2002-03-28 | Engelhard Corp | Low pressure exhaust gas recirculation system for supercharged diesel engines |
| CN102562258A (en) * | 2010-11-10 | 2012-07-11 | 株式会社电装 | Intake Air Cooling Device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5636348A (en) * | 1979-08-30 | 1981-04-09 | Muro Kinzoku Kogyo Kk | Feeding device of short length plate material to press |
| JPS57193718A (en) * | 1981-05-25 | 1982-11-29 | Mazda Motor Corp | Controller for intake air of automobile engine |
| JPS583187A (en) * | 1981-06-30 | 1983-01-08 | Fujitsu Ltd | Semiconductor storage device |
-
1984
- 1984-03-21 JP JP59052214A patent/JPS60198326A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5636348A (en) * | 1979-08-30 | 1981-04-09 | Muro Kinzoku Kogyo Kk | Feeding device of short length plate material to press |
| JPS57193718A (en) * | 1981-05-25 | 1982-11-29 | Mazda Motor Corp | Controller for intake air of automobile engine |
| JPS583187A (en) * | 1981-06-30 | 1983-01-08 | Fujitsu Ltd | Semiconductor storage device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001092711A3 (en) * | 2000-05-26 | 2002-03-28 | Engelhard Corp | Low pressure exhaust gas recirculation system for supercharged diesel engines |
| CN102562258A (en) * | 2010-11-10 | 2012-07-11 | 株式会社电装 | Intake Air Cooling Device |
| CN102562258B (en) * | 2010-11-10 | 2015-05-06 | 株式会社电装 | Intake air cooling device |
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