JP2005282401A - Cooling air lead-in device - Google Patents

Cooling air lead-in device Download PDF

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Publication number
JP2005282401A
JP2005282401A JP2004094734A JP2004094734A JP2005282401A JP 2005282401 A JP2005282401 A JP 2005282401A JP 2004094734 A JP2004094734 A JP 2004094734A JP 2004094734 A JP2004094734 A JP 2004094734A JP 2005282401 A JP2005282401 A JP 2005282401A
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vehicle
intercooler
cooling air
cover
air inlet
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JP4396353B2 (en
Inventor
Isato Nishimura
勇人 西村
Shinji Miyawaki
伸二 宮脇
Kazuhiko Watanabe
一彦 渡辺
Yoshio Kubota
義雄 久保田
Koichi Takada
耕一 高田
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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Priority to JP2004094734A priority Critical patent/JP4396353B2/en
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    • 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

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  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To prevent an inter-cooler from being damaged by a scattering stone while well maintaining the cooling efficiency of the inter-cooler installed under the floor of a vehicle. <P>SOLUTION: The inter-cooler 4 is approximately horizontally installed under the floor of the vehicle. The cooling air inlet 6 thereof is faced downward, an inter-cooler cover 7 covers the cooling air inlet 6 from the underside, and a main opening 8 facing the forward of the vehicle is formed in the inter-cooler cover 7 forward of the vehicle more than the cooling air inlet 6 and an auxiliary opening 20 facing forward of the vehicle is formed at the bottom part of the inter-cooler cover 7. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、過給機により圧縮されて昇温したエンジンの過給空気を冷却するインタークーラが車両の床下に配置された場合に、そのインタークーラへ冷却空気を導入するための装置に関する。   The present invention relates to an apparatus for introducing cooling air into an intercooler when an intercooler that cools the supercharged air of an engine that has been compressed and heated by a supercharger is disposed under the floor of the vehicle.

過給空気を冷却するインタークーラを車両の床下で略水平に配置した場合には、回転する車輪で巻き上げられた飛石等によりインタークーラが破損する危険があるので、インタークーラを覆うカバー等を付設する必要があるが、このカバー等を設けると冷却風の導入が阻害されて、インタークーラの冷却効率が低下しやすいという問題があり、また、インタークーラへ単に効率良く冷却空気を取り入れようとすれば、上記飛石等によりインタークーラが破損するおそれがあった。   If the intercooler that cools the supercharged air is placed almost horizontally under the floor of the vehicle, there is a risk of damage to the intercooler due to flying stones rolled up by the rotating wheels. However, if this cover is provided, the introduction of cooling air is hindered, and there is a problem that the cooling efficiency of the intercooler tends to decrease. In this case, the intercooler may be damaged by the above-mentioned stepping stones.

特開平７−１０１２５４号公報JP-A-7-101254

本発明は、車両の床下に配置されたインタークーラの冷却効率を良好に保持しながら、飛石等によるインタークーラの破損を防止しようとするものである。   The present invention is intended to prevent damage to the intercooler due to flying stones or the like while maintaining good cooling efficiency of the intercooler arranged under the floor of the vehicle.

このため、本発明にかかる冷却空気導入装置は、車両の床下で略水平に配置されたインタークーラの下方に面した冷却風導入口を下方から間隔をおいて覆うインタークーラカバーを有し、上記インタークーラカバーは上記冷却風導入口より車両前方に形成されて車両前方側へ向いた主開口をそなえていると共に、底部に車両前方側へ向いた副開口が形成されている。   For this reason, the cooling air introduction device according to the present invention has an intercooler cover that covers the cooling air introduction port facing the lower side of the intercooler disposed substantially horizontally under the floor of the vehicle at an interval from below, The intercooler cover is formed in front of the vehicle from the cooling air inlet and has a main opening facing the vehicle front side, and a sub-opening facing the vehicle front side is formed at the bottom.

すなわち、車両の床下で略水平に配置されたインタークーラの冷却風導入口が下方に面していても、冷却風導入口の下方に配置されたインタークーラカバーの主開口が冷却風導入口より車両前方に形成されて車両前方側へ向いているので、主開口からインタークーラカバー内へ車両の走行風を効率良く導入させることができて、その走行風が冷却風としてインタークーラへ導かれると同時に、インタークーラカバーの底部に形成されて車両前方側へ向いた副開口からもインタークーラカバー内へ走行風が取り入れられ、冷却風としてインタークーラへ導かれる結果、インタークーラの冷却効率を良好に保持することができる一方、冷却風導入口を下方から間隔をおいてインタークーラカバーが覆っているため、車輪で巻き上げられた飛石等によりインタークーラが破損することを防止することができ、また、車両の走行に伴って主開口からインタークーラカバー内へ泥水が侵入することがあっても、上記泥水はインタークーラカバーの底部に形成された副開口から下方へ排出されるので、上記泥水がインタークーラの冷却風導入口へ到達して、インタークーラに目詰まりを起こさせるといった不具合の発生を抑制できる利点がある。   That is, even if the cooling air introduction port of the intercooler arranged substantially horizontally under the floor of the vehicle faces downward, the main opening of the intercooler cover arranged below the cooling air introduction port is more than the cooling air introduction port. Since it is formed in the front of the vehicle and faces the front side of the vehicle, the traveling wind of the vehicle can be efficiently introduced from the main opening into the intercooler cover, and the traveling wind is guided to the intercooler as cooling air. At the same time, traveling air is also taken into the intercooler cover from the sub-opening that is formed at the bottom of the intercooler cover and faces the front of the vehicle, and is guided to the intercooler as cooling air, which improves the cooling efficiency of the intercooler On the other hand, the cooling air inlet is covered by the intercooler cover with a gap from below, so that The intercooler can be prevented from being damaged, and even if muddy water enters the intercooler cover from the main opening as the vehicle travels, the muddy water is formed at the bottom of the intercooler cover. Since the muddy water reaches the cooling air inlet of the intercooler and causes the intercooler to be clogged, there is an advantage that it is possible to suppress the occurrence of problems such as clogging of the intercooler.

以下、図面に示す本発明の各実施例について、同等部分にはそれぞれ同一符号を付けて説明する。
図１〜図４において、車両後部のリヤフロア１の下方に横置きエンジン２が装備されていると共に、横置きエンジン２の車幅方向にトランスミッション３がエンジン２と一体的に設置され、トランスミッション３の車両前方側でインタークーラ４がブラケット５を介してトランスミッション３に固定されている。 In the following, each embodiment of the present invention shown in the drawings will be described with the same reference numerals given to the equivalent parts.
1 to 4, a horizontal engine 2 is mounted below the rear floor 1 at the rear of the vehicle, and a transmission 3 is installed integrally with the engine 2 in the vehicle width direction of the horizontal engine 2. An intercooler 4 is fixed to the transmission 3 via a bracket 5 on the front side of the vehicle.

インタークーラ４は車両の床下において略水平でやや車両後方へ傾斜するように配置され、その冷却風導入口６が下方に面しているが、樹脂製のインタークーラカバー７が冷却風導入口６を下方から間隔をおいて覆い、かつ、冷却風導入口６より車両前方で車両前方側へ向いた格子状の主開口８がインタークーラカバー７に形成されていると共に、インタークーラカバー７の底部には、車両前方側へ向いた副開口２０が形成されていて、副開口２０の車両前方側端縁２１と車両後方側端縁２２とが、車幅方向に間隔をおいて形成された複数の支持部２３により連結されている。   The intercooler 4 is disposed so as to be substantially horizontal and slightly inclined to the rear of the vehicle under the floor of the vehicle, and its cooling air inlet 6 faces downward, but the resin-made intercooler cover 7 is provided with the cooling air inlet 6. Is formed in the intercooler cover 7 with a lattice-shaped main opening 8 facing the vehicle front side in front of the cooling air from the cooling air inlet 6 and the bottom portion of the intercooler cover 7. A plurality of sub-openings 20 are formed in the vehicle front side, and a vehicle front side edge 21 and a vehicle rear side edge 22 of the sub-opening 20 are formed at intervals in the vehicle width direction. Are connected by a support portion 23.

インタークーラカバー７の車両前方側にアンダーカバー９が配置され、アンダーカバー９は車両前方側から主開口８の上端付近に向かって車両後上方へゆるやかに傾斜しているが、主開口８の下端１０がアンダーカバー９の下端１１よりわずか上方、例えば、上下間隔Ｓ＝１０ｍｍだけ上方に位置するように構成されている。
なお、１２は車両骨格を形成するクロスメンバ、１３はエンジン２の上部に設置された過給機である。 An under cover 9 is disposed on the vehicle front side of the intercooler cover 7, and the under cover 9 is gently inclined upward from the vehicle front side toward the vicinity of the upper end of the main opening 8. 10 is configured to be positioned slightly above the lower end 11 of the under cover 9, for example, above the vertical distance S = 10 mm.
In addition, 12 is a cross member which forms a vehicle skeleton, and 13 is a supercharger installed on the upper part of the engine 2.

上記装置において、過給機１３により圧縮されて昇温したエンジン２の過給空気は、図示しない導管を通ってインタークーラ４へ導かれてから、図示しない導管を通ってエンジン２へ吸気として送給され、他方、冷却風導入口６の上端付近に向かい車両後上方へゆるやかに傾斜しているアンダーカバー９の下面に沿って車両後方へ流れる車両の走行風は、図１の矢印Ａが示すように、主開口８からインタークーラカバー７内へ取り入れられると同時に、図３及び図４の矢印Ｂがそれぞれ示すように、底部の副開口２０からもインタークーラカバー７内へ取り入れられて、冷却風として冷却風導入口６から略上方へインタークーラ４を通過することにより過給空気を冷却し、トランスミッション３の上方を車両後方へ流れ去る。   In the above apparatus, the supercharged air of the engine 2 which has been compressed and heated by the supercharger 13 is guided to the intercooler 4 through a conduit (not shown) and then sent as intake air to the engine 2 through a conduit (not shown). On the other hand, the traveling wind of the vehicle that flows toward the rear of the vehicle along the lower surface of the under cover 9 that is gradually inclined upward toward the rear of the vehicle toward the vicinity of the upper end of the cooling air inlet 6 is indicated by an arrow A in FIG. As shown in FIG. 3 and FIG. 4, arrows B are also taken into the intercooler cover 7 from the main opening 8 into the intercooler cover 7 and cooled. The supercharged air is cooled by passing through the intercooler 4 substantially upward from the cooling air inlet 6 as the wind, and then flows over the transmission 3 to the rear of the vehicle.

このとき、インタークーラ４の冷却風導入口６が下方に面していても、冷却風導入口６の下方に配置されたインタークーラカバー７の主開口８及びインタークーラカバー７底部の副開口２０がそれぞれ車両前方側に向いているので、主開口８及び副開口２０からインタークーラカバー７内へ車両の走行風を効率良く導入させることができて、その走行風が冷却風としてインタークーラ４へ導かれる結果、インタークーラ４の冷却効率を良好に保持することができるようになる。   At this time, even if the cooling air inlet 6 of the intercooler 4 faces downward, the main opening 8 of the intercooler cover 7 and the sub-opening 20 at the bottom of the intercooler cover 7 disposed below the cooling air inlet 6. Are directed to the front side of the vehicle, so that it is possible to efficiently introduce the traveling wind of the vehicle from the main opening 8 and the sub opening 20 into the intercooler cover 7, and the traveling wind is supplied to the intercooler 4 as cooling air. As a result, the cooling efficiency of the intercooler 4 can be maintained satisfactorily.

また、横置きエンジン２の車幅方向に設置されたトランスミッション３は、エンジン２と比較して一般に高さが小さく、従って、リヤフロア１の下面とトランスミッション３の上面との間には比較的大きな空間１４が形成されているので、トランスミッション３の車両前方側に固定されたインタークーラ４から略上方へ放出された冷却風は、上記空間１４を通って車両後方へ流れることとなるため、インタークーラ４の上方に背圧が生じにくくて、冷却風のスムースな流れを確保することができ、この面からもインタークーラ４の冷却効率を向上させることができることとなる。   Further, the transmission 3 installed in the vehicle width direction of the horizontally mounted engine 2 is generally smaller in height than the engine 2, so that a relatively large space is provided between the lower surface of the rear floor 1 and the upper surface of the transmission 3. 14 is formed, the cooling air discharged substantially upward from the intercooler 4 fixed to the vehicle front side of the transmission 3 flows through the space 14 to the rear of the vehicle. As a result, back pressure is unlikely to be generated above and a smooth flow of cooling air can be secured, and the cooling efficiency of the intercooler 4 can also be improved from this surface.

さらに、インタークーラ４の冷却風導入口６が下方に面していても、インタークーラカバー７が冷却風導入口６を下方から間隔をおいて覆っているため、車輪で巻き上げられた飛石等によりインタークーラ４が破損することを確実に防止することができる利点がある。   Furthermore, even if the cooling air introduction port 6 of the intercooler 4 faces downward, the intercooler cover 7 covers the cooling air introduction port 6 with an interval from the lower side. There is an advantage that damage to the intercooler 4 can be reliably prevented.

しかも、冷却風導入口６の下端１０がアンダーカバー９の下端１１よりわずか上方に位置しているため、インタークーラカバー７の主開口８が車両前方側に向いていても、車両の走行に伴いアンダーカバー９の下端１１に沿って車両後方へ流れる泥水は主開口８内へ取り込まれにくく、また仮に、泥水が主開口８内へ侵入することがあっても、その泥水はインタークーラカバー７の底部に形成された副開口２０から下方へ排出されて、インタークーラ４の冷却風導入口６へ到達することを抑制できるので、インタークーラ４に泥水が衝突してインタークーラ４を損傷させたり、インタークーラ４が泥水により目詰まりを起こすことを容易に防止することができる。   Moreover, since the lower end 10 of the cooling air inlet 6 is located slightly above the lower end 11 of the under cover 9, even if the main opening 8 of the intercooler cover 7 faces the front side of the vehicle, The muddy water flowing toward the rear of the vehicle along the lower end 11 of the under cover 9 is difficult to be taken into the main opening 8, and even if muddy water may enter the main opening 8, the muddy water Since it can be controlled to be discharged downward from the sub-opening 20 formed at the bottom and reach the cooling air inlet 6 of the intercooler 4, muddy water collides with the intercooler 4 to damage the intercooler 4, It is possible to easily prevent the intercooler 4 from being clogged with muddy water.

また、インタークーラ４はブラケット５を介してトランスミッション３に固定されていて、車体側へ取り付ける必要がないため、過給機１３からの過給空気がインタークーラ４を通過することによりインタークーラ４に振動が生じても、この振動は車体側へ直接伝達されることを制止できるので、車室内の静粛性を容易に向上させることが可能となる。   Since the intercooler 4 is fixed to the transmission 3 via the bracket 5 and does not need to be attached to the vehicle body side, the supercooled air from the supercharger 13 passes through the intercooler 4 to the intercooler 4. Even if vibration occurs, this vibration can be prevented from being directly transmitted to the vehicle body side, so that it is possible to easily improve the quietness of the passenger compartment.

図５及び図６に示す実施例では、インタークーラカバー７の底部に形成された副開口２０の車両前方側端縁２１が上方へ大きく湾曲していて、他の構造は上記実施例ととくに変わるところがないが、車両前方側に向いた副開口２０が比較的大きく形成され、かつ、車両前方側端縁２１が上方へ大きく湾曲しているため、副開口２０からインタークーラカバー７内へ走行風を一層効率良く導入させることができて、上記実施例の場合と同様に、インタークーラ４の冷却効率を良好に保持することができるようになる。   In the embodiment shown in FIGS. 5 and 6, the vehicle front side edge 21 of the sub-opening 20 formed at the bottom of the intercooler cover 7 is greatly curved upward, and the other structure is particularly different from the above embodiment. However, since the sub-opening 20 facing the front side of the vehicle is formed relatively large and the front edge 21 of the vehicle is greatly curved upward, the traveling wind enters the intercooler cover 7 from the sub-opening 20. Can be introduced more efficiently, and the cooling efficiency of the intercooler 4 can be satisfactorily maintained as in the case of the above embodiment.

本発明の実施例における概略縦断面図。The schematic longitudinal cross-sectional view in the Example of this invention. 図１のII矢視図。The II arrow line view of FIG. 上記実施例の要部縦断面拡大図。The principal part longitudinal cross-sectional enlarged view of the said Example. 図３に示す要部の概略後方斜視図。FIG. 4 is a schematic rear perspective view of the main part shown in FIG. 3. 本発明の他の実施例における要部縦断面図。The principal part longitudinal cross-sectional view in the other Example of this invention. 図５に示す要部の概略後方斜視図。The schematic rear perspective view of the principal part shown in FIG.

符号の説明Explanation of symbols

２ エンジン
３ トランスミッション
４ インタークーラ
６ 冷却風導入口
７ インタークーラカバー
８ 主開口
１３ 過給機
２０ 副開口
２１ 車両前方側端縁 2 Engine 3 Transmission 4 Intercooler 6 Cooling air inlet 7 Intercooler cover 8 Main opening 13 Supercharger 20 Sub opening 21 Front edge of vehicle

Claims (2)

車両の床下で略水平に配置されたインタークーラの下方に面した冷却風導入口を下方から間隔をおいて覆うインタークーラカバーを有し、上記インタークーラカバーは上記冷却風導入口より車両前方に形成されて車両前方側へ向いた主開口をそなえていると共に、底部に車両前方側へ向いた副開口が形成された冷却空気導入装置。 There is an intercooler cover that covers the cooling air inlet facing the lower side of the intercooler arranged substantially horizontally under the floor of the vehicle at an interval from below, and the intercooler cover is located in front of the vehicle from the cooling air inlet. A cooling air introduction device that has a main opening that is formed and faces the front side of the vehicle, and a sub-opening that faces the front side of the vehicle is formed at the bottom. 請求項１において、上記副開口の車両前方側端縁が上方へ湾曲した冷却空気導入装置。 The cooling air introduction device according to claim 1, wherein a vehicle front side edge of the sub opening is curved upward.
JP2004094734A 2004-03-29 2004-03-29 Cooling air introduction device Expired - Fee Related JP4396353B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012137002A (en) * 2010-12-27 2012-07-19 Suzuki Motor Corp Cooling device for intercooler of vehicle
JP2015087045A (en) * 2013-10-29 2015-05-07 株式会社デンソー Heat exchanger
CN114837800A (en) * 2022-06-10 2022-08-02 奇瑞汽车股份有限公司 Intercooler air guide structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012137002A (en) * 2010-12-27 2012-07-19 Suzuki Motor Corp Cooling device for intercooler of vehicle
JP2015087045A (en) * 2013-10-29 2015-05-07 株式会社デンソー Heat exchanger
CN114837800A (en) * 2022-06-10 2022-08-02 奇瑞汽车股份有限公司 Intercooler air guide structure

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