JP2005282399A - Supercharging air cooling device - Google Patents

Supercharging air cooling device Download PDF

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Publication number
JP2005282399A
JP2005282399A JP2004094696A JP2004094696A JP2005282399A JP 2005282399 A JP2005282399 A JP 2005282399A JP 2004094696 A JP2004094696 A JP 2004094696A JP 2004094696 A JP2004094696 A JP 2004094696A JP 2005282399 A JP2005282399 A JP 2005282399A
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Japan
Prior art keywords
vehicle
intercooler
cover
cooling air
cooling device
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JP2004094696A
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JP4470551B2 (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
Teruo Ozaki
照夫 尾崎
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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 JP2004094696A priority Critical patent/JP4470551B2/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)
  • Supercharger (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 an opening 8 facing forward of the vehicle is formed in the inter-cooler cover 7 forward of the vehicle more than the cooling air inlet 6. <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装置、とくに、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の冷却装置に関する。   The present invention relates to a device that cools supercharged air of an engine that has been compressed and heated by a supercharger, and more particularly, to a cooling device when an intercooler that cools supercharged air is disposed under the floor of a 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 or the like is provided, the introduction of the cooling air is hindered, and there is a problem that the cooling efficiency of the intercooler tends to decrease.

特開平８−１３２８９５号公報JP-A-8-132895 特開平２−２６４１１７号公報JP-A-2-264117

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、本発明にかかる過給空気冷却装置は、車両の床下で略水平に配置され冷却風の導入口が下方に面したインタークーラと、上記導入口を下方から間隔をおいて覆うと共に上記導入口より車両前方で車両前方側に向かう開口が形成されたインタークーラカバーとを有している。   For this reason, the supercharged air cooling device according to the present invention covers an intercooler that is disposed substantially horizontally under the floor of a vehicle and has an inlet for cooling air facing downward, and covers the inlet from below at an interval. And an intercooler cover in which an opening toward the vehicle front side is formed in front of the vehicle from the introduction port.

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、その導入口の下方に配置されたインタークーラカバーに車両前方側へ向かう開口が形成されているので、上記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結果、インタークーラの冷却効率を良好に保持できる一方、上記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確実に防止することができる。   That is, even if the cooling air inlet of the intercooler arranged substantially horizontally under the floor of the vehicle faces downward, an opening toward the vehicle front side is formed in the intercooler cover arranged below the inlet. Therefore, the traveling wind of the vehicle can be efficiently introduced from the opening into the intercooler cover, and the traveling wind is guided to the intercooler as the cooling air, so that the cooling efficiency of the intercooler can be maintained well. On the other hand, since the intercooler cover covers the introduction port with an interval from below, it is possible to reliably prevent the intercooler from being damaged by flying stones wound up by wheels.

図面において、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 drawing, a horizontal engine 2 is mounted below a 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.

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に向かう格子状開口８がインタークーラカバー７に形成されている。   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. Are formed in the intercooler cover 7 at intervals from the bottom, and a lattice-shaped opening 8 is formed in the intercooler cover 7 from the cooling air introduction port 6 toward the vehicle front side in front of the vehicle.

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は車両前方側から格子状開口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、格子状開口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 lattice opening 8. The lower end 10 of the under cover 9 is 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、開口８からインタークーラカバー７内へ取り入れられ、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 described above, the supercharged air is cooled by being taken into the intercooler cover 7 from the opening 8 and passing through the intercooler 4 substantially upward from the cooling air inlet 6 as cooling air, and the upper part of the transmission 3 is moved to the rear of the vehicle. Flow away.

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の開口８が車両前方側に向いているので、開口８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 opening 8 of the intercooler cover 7 disposed below the cooling air inlet 6 faces the front side of the vehicle. As a result, the traveling wind of the vehicle can be efficiently introduced into the intercooler cover 7 from 8 and the traveling wind is guided to the intercooler 4 as cooling air. As a result, the cooling efficiency of the intercooler 4 can be kept good. become able to.

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インタークーラカバー開口８内へ取り込まれにくく、従って、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。   In addition, 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 opening 8 of the intercooler cover 7 faces the vehicle front side, The muddy water flowing toward the rear of the vehicle along the lower end 11 of the cover 9 is difficult to be taken into the intercooler cover opening 8, so that the muddy water collides with the intercooler 4 and damages the intercooler 4. It is possible to easily prevent clogging.

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.

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. 上記実施例の要部拡大斜視図。The principal part expansion perspective view of the said Example.

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
５ ブラケット
６ 冷却風導入口
７ インタークーラカバー
８ 開口
９ アンダーカバー
１３ 過給機 2 Engine 3 Transmission 4 Intercooler 5 Bracket 6 Cooling air inlet 7 Intercooler cover 8 Opening 9 Under cover 13 Supercharger

Claims (4)

車両の床下で略水平に配置され冷却風の導入口が下方に面したインタークーラと、上記導入口を下方から間隔をおいて覆うと共に上記導入口より車両前方で車両前方側に向かう開口が形成されたインタークーラカバーとを有する過給空気冷却装置。 An intercooler that is disposed substantially horizontally under the vehicle floor and has an inlet for cooling air facing downward, and covers the inlet at a distance from below, and an opening from the inlet toward the front of the vehicle in front of the vehicle is formed. And a supercharged air cooling device. 請求項１において、上記インタークーラカバーの車両前方側に配置され車両前方側から上記導入口の上端付近に向かって車両後上方へ傾斜したアンダーカバーを有し、上記開口の下端が上記アンダーカバーの下端より上方に位置した過給空気冷却装置。 2. The under cover according to claim 1, further comprising an under cover that is disposed on the vehicle front side of the intercooler cover and is inclined rearward and upward toward the vicinity of the upper end of the introduction port from the vehicle front side. A supercharged air cooling device located above the lower end. 請求項１または請求項２において、横置きエンジンの車幅方向に設置されたトランスミッションの車両前方側に上記インタークーラが配置された過給空気冷却装置。 The supercharged air cooling device according to claim 1 or 2, wherein the intercooler is disposed on a vehicle front side of a transmission installed in a vehicle width direction of a horizontally mounted engine. 請求項３において、上記インタークーラがブラケットを介して上記トランスミッションに固定された過給空気冷却装置。 The supercharged air cooling device according to claim 3, wherein the intercooler is fixed to the transmission via a bracket.
JP2004094696A 2004-03-29 2004-03-29 Supercharged air cooler Expired - Fee Related JP4470551B2 (en)

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JP4470551B2 JP4470551B2 (en) 2010-06-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019002357A (en) * 2017-06-16 2019-01-10 本田技研工業株式会社 Internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019002357A (en) * 2017-06-16 2019-01-10 本田技研工業株式会社 Internal combustion engine
US10364741B2 (en) 2017-06-16 2019-07-30 Honda Motor Co., Ltd. Internal combustion engine provided with turbocharger

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