JPS5873430A - Construction of undercover in engine compartment - Google Patents
Construction of undercover in engine compartmentInfo
- Publication number
- JPS5873430A JPS5873430A JP17081781A JP17081781A JPS5873430A JP S5873430 A JPS5873430 A JP S5873430A JP 17081781 A JP17081781 A JP 17081781A JP 17081781 A JP17081781 A JP 17081781A JP S5873430 A JPS5873430 A JP S5873430A
- Authority
- JP
- Japan
- Prior art keywords
- undercover
- engine room
- engine compartment
- engine
- rear end
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K11/00—Arrangement in connection with cooling of propulsion units
- B60K11/02—Arrangement in connection with cooling of propulsion units with liquid cooling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は自動車用エンジンルームのアンダーカバー構造
、特にエンジンルーム内での空気の滞溜を防止し、通風
を良くする様改良したアンダーカバー構造に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an undercover structure for an automobile engine compartment, and more particularly to an improved undercover structure that prevents air from stagnation in the engine compartment and improves ventilation.
車両には、エンジンルームの齢下方から泥水等が侵入す
るのを防止するため、エンジンルームの下部にアンダー
カバーが取付けであるが、このようなエンジンルームの
アンダーカバー構造の従来例としては例えば第１図乃至
第３図に示すようなものがある。これは車両１の前方部
分に設けたエンジンルーム１３の内部を概略的に示した
ものであるが、このエンジンルーム１６内罠はラジゴー
タコアサポート７の後側に位置しフロントグリル６から
流入した空気を受けるラジェータ６と、空気吸引用のフ
ァン９會有しサスペンションメンバ１０に架設したエン
ジン８とが配置してあり、このエンジンルーム１３の下
部にはフロントクロスメンバ５に前端部が接合したアン
ダーカバー４を支持し、てい乏。従来のアンダーカバー
４は、第１図及び第２図に示すよウニ、フロントクロス
メンバ５からエンジン８の下部を覆うオイルパン１４の
前端部下方まで延び、第３図に示すような前端部及び左
右両側部に取付フランジ４ａを有し、中央部に前端から
後端にかけてゆるやかに垂れ下ったカバ一本体４ｂを有
する一体構造物から成る。なお図中、符号２はフードパ
ネル、符号１１はダツシュロアパネル、符号１２はバン
パである。Vehicles are equipped with an undercover at the bottom of the engine compartment to prevent muddy water from entering from below the engine compartment. There are those shown in Figures 1 to 3. This schematically shows the inside of the engine room 13 provided in the front part of the vehicle 1. The trap inside the engine room 16 is located behind the radigota core support 7 and flows in from the front grille 6. A radiator 6 that receives air and an engine 8 that has nine fans for sucking air and are installed on a suspension member 10 are disposed.At the bottom of this engine room 13 is an undercarriage whose front end is joined to the front cross member 5. Supports cover 4 and is lacking. The conventional undercover 4 extends from the front cross member 5 to below the front end of the oil pan 14 that covers the lower part of the engine 8 as shown in FIGS. It is an integral structure having mounting flanges 4a on both left and right sides, and a cover main body 4b in the center that hangs down gently from the front end to the rear end. In the figure, numeral 2 is a hood panel, numeral 11 is a darts lower panel, and numeral 12 is a bumper.
しかしながら、このような従来のエンジンルームのアン
ダーカバー構造にあっては、アンダーカバー４０後端が
オイルパン１４の前端部まで延びた場所で終っているた
め、ラジェータ６を通過した空気流はエンジンルーム１
３の前側部分より下方に抜は出てしまい、エンジンルー
ム１３俵側部位置では第２図中符号１５で示すように熱
気の滞溜部分が出来てエンジンルーム１３内ノ温度を高
くず木恐れがあった。このため、場合によっては、エン
ジンルーム１３内に配設する各種部品に対して迩熱板を
取付け、これらの部品の高温劣化を防ぐ必要があシ、製
作作業性の低下を招来する上、車体重量及び製造コスト
の増大を招くという不具合があった。However, in such a conventional engine room undercover structure, the rear end of the undercover 40 ends at a place where it extends to the front end of the oil pan 14, so the airflow that has passed through the radiator 6 flows into the engine room. 1
As a result, hot air accumulates at the side of the engine room 13, as shown by reference numeral 15 in Figure 2, and the temperature inside the engine room 13 does not rise, causing the risk of wood burning. was there. For this reason, in some cases, it may be necessary to attach heat plates to various parts installed in the engine room 13 to prevent these parts from deteriorating at high temperatures. There was a problem in that the weight and manufacturing cost increased.
本発明はこのような従来の問題点に着目して行ったもの
で、その目的は、エンジンルーム全体に空気流が行きわ
たるよう整゛流を行うことが出来、且つ一部に空気流に
よって負圧を発生させる部分を設けて成るアンダーカバ
ー、をエンジンルームの下部に取付けたアンダーカバー
構造とすることにより、エンジンルーム内の空気循環性
能を向上させることである。The present invention was developed by focusing on such conventional problems, and its purpose is to be able to regulate the airflow so that it spreads throughout the engine room, and to eliminate the negative effects caused by the airflow in some parts. The purpose is to improve the air circulation performance in the engine room by using an undercover structure in which an undercover provided with a pressure generating part is attached to the lower part of the engine room.
本発明の要旨は、アンダーカバーを従来のものよりも長
Ｒ寸法に設定して、車体に取付けたときサスペンション
メンバの近辺またはこれの後方位置まで延在させる一方
、このアンダーカバーの後部位置に、車両が走行するに
つれてアンダーカバーに沿って流れる外気によって負圧
領域を作る制御部材を設ける点にある。アンダーカバー
はエンジンの下部に設けたオイルパンのＸ下まで延び、
後端がサスペンションメンバ近辺で自由端となって開放
した構造になっていテモよいし、或は又サスペンション
メンバヨＤも更に後方のダッシュクロスメンバ部まで延
び、この部分で車体パネルに接合固定してあってもよい
。“アンダーカバーの後部位置に設けた制御部材は、ア
ンダーカバーの後端部分を下方へ突出して折り曲けたフ
ランジ部から構成したものや、アンダーカバーの後方部
分を一部〈υ抜いて開口を形成し、この開口内に数列の
ルーパを配設したもの等、種々のものを考えることがで
きる。かかる構成を有するアンダーカバー構造とするこ
とによシ、７０ントグリルからニンジンルーム内に流入
した空気流れを当該エンジンルームの後方位置まで導く
と共に、この後方位置に達した空気流れ全制御部材によ
って形成した負圧の作用によってエンジンルーム下方へ
向けて導引し、外部へ流出させることができる。The gist of the present invention is that the undercover is set to have a longer R dimension than conventional ones, so that when it is attached to the vehicle body, it extends to the vicinity of the suspension member or to the rear of the suspension member, and at the rear of the undercover, The present invention is characterized in that a control member is provided that creates a negative pressure region by outside air flowing along the undercover as the vehicle travels. The undercover extends to the bottom of the oil pan located at the bottom of the engine.
It is possible to have an open structure with the rear end becoming a free end near the suspension member, or alternatively, the suspension member D extends further to the rear dash cross member and is fixed to the vehicle body panel at this part. There may be. “The control member installed at the rear of the undercover may consist of a flange that protrudes downward from the rear end of the undercover and is bent, or an opening may be formed by removing a portion of the rear end of the undercover. However, various configurations can be considered, such as one in which several rows of loopers are arranged within this opening.By adopting an undercover structure having such a configuration, the air flow flowing into the carrot room from the 70-inch grill can be reduced. It is possible to guide the air to a rear position of the engine room, and to draw it downward in the engine room by the action of the negative pressure created by the air flow control member that has reached this rear position, and to flow it out to the outside.
これにより、エンジンルーム全体にわたる空気の流れを
作ることが可能になシ、当該エンジンルーム内の所々に
熱気が滞溜して各種部品の性能低下を招くことはなくな
る。This makes it possible to create a flow of air throughout the engine room, and prevents hot air from accumulating in some places in the engine room and causing deterioration in the performance of various parts.
本発明の実施例を添付の図面を参照して詳細に説明する
。Embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第４図乃至第６図は本発明の第１の実施例を示す図であ
る。こめ実施例に係るエンジンルームのアンダーカバー
構造は、取付７ランジ１６ｍとカバ一本体１６ｂとを一
体構造に成形したアンダーカバー１６ｔ−エンジンルー
ム１６の、下部において車体１に接合固定して成る。ア
ンダーカバー１６は前端がフロントクロスメンバ５の下
面部分に接合する一方、後端はサスペンションメンバ１
゜の−後方位置まで延びて開放構填になっておシ、当該
後端部分に・おいてがバ一本体１６ｂを下方へ折り返し
て制御部材即ちフランジ１７ヲ形成している。4 to 6 are diagrams showing a first embodiment of the present invention. The engine room undercover structure according to the embodiment is formed by joining and fixing the undercover 16t to the vehicle body 1 at the lower part of the engine room 16, which is formed by integrally molding the mounting 7 flange 16m and the cover main body 16b. The front end of the undercover 16 is joined to the lower surface of the front cross member 5, while the rear end is connected to the suspension member 1.
The main body 16b of the main body 16b is bent downward at the rear end thereof to form a control member or flange 17.
かかる構成を有するため、フロントグリル６からラジェ
ータ６を通過してエンジンルーム１３内に流入した空気
流は、エンジンルーム１３の前部下側から外へ抜叶出る
ことなく、後端譬即ちダツシュロアパネル１１部付近へ
達する。又、泥水等もアンダーカベ−１６によってエン
ジンルーム１６の前）方からエンジンルーム内へ侵入す
るのを妨げらｊ１エンジン８０Ｆ方に配置したコンプレ
ッサ等の汚損が防ＩＦされる。また、車両走行中、７ラ
ンジ１７の作用によって、エンジンルーム１６の下側を
流れる風が７ランジ１７の後部に負圧領域を発生させる
。この負圧は、上記エンジンルーム１６内、で後端壁部
付近に達した空気流を第５図中矢印Ｔ１で示すようｅこ
下方へ向けて導引しエンジンルーム１３円から外へ空気
を吸い出す。これにより、エンジンルーム１３の後方部
分に滞溜する熱気を吸い出して、当該部分における空気
温を下げる。したがって、エンジンルーム１３の稜部位
置に配設する各種部品に遮熱板を取付ける必要はなく、
車体重量の軽減等を来示す図である。この実施例に係る
エンジンルームのアンダーカバー構造は、取付７ランシ
１８ａとカバ一本体１８ｂとを一体構造に成したアンダ
ーカバー１６ヲエンジンルーム１３の下部において車体
１に接合固定して成る。アンダーカバー１８は、上記第
１の実施例におけるアンダーカバー１６と同様、前端が
フロントクロスメンバ５の下面部分に接合する一方、後
端はサスペンションメンバ１０の後方、はぼダツシュロ
アパネル１１の位置まで延びて開放構造になっている。With such a configuration, the airflow flowing from the front grille 6 through the radiator 6 into the engine compartment 13 does not flow out from the front lower side of the engine compartment 13, but instead passes through the rear end, i.e., the rear panel. It reaches around 11 parts. Furthermore, muddy water and the like are prevented from entering the engine room from the front side of the engine room 16 by the undercave 16, thereby preventing contamination of the compressor and the like disposed on the j1 engine 80F side. Further, while the vehicle is running, the wind flowing under the engine compartment 16 generates a negative pressure region at the rear of the seven lunges 17 due to the action of the seven lunges 17 . This negative pressure guides the airflow that has reached the vicinity of the rear end wall in the engine room 16 downwards as shown by the arrow T1 in FIG. suck it out. Thereby, the hot air accumulated in the rear part of the engine room 13 is sucked out, and the air temperature in that part is lowered. Therefore, there is no need to attach heat shield plates to various parts arranged at the ridge position of the engine room 13.
FIG. 3 is a diagram illustrating reduction in vehicle weight, etc. The undercover structure of the engine room according to this embodiment is formed by joining and fixing an undercover 16 to the vehicle body 1 at the lower part of the engine room 13, which is an integral structure of a mounting lance 18a and a cover main body 18b. Similar to the undercover 16 in the first embodiment, the undercover 18 has a front end joined to the lower surface of the front cross member 5, and a rear end that extends to the rear of the suspension member 10 and to the bottom lower panel 11. It is extended and has an open structure.
しかし第１の実施例と異なシ、アンダーカバ−１８０後
端部分には当該アンダーカバー１８の幅方向に延びるス
リット溝２０ヲ複数形成すると共に、各スリット溝２０
の前側縁にはカバ一本体１８ｂから下方へ突き出たルー
バ部１９を設けて制御部材を構成している。However, different from the first embodiment, a plurality of slit grooves 20 extending in the width direction of the under cover 18 are formed in the rear end portion of the under cover 180, and each slit groove 20 is formed in the rear end portion of the under cover 180.
A louver portion 19 protruding downward from the cover body 18b is provided on the front edge of the cover body 18b to constitute a control member.
し九かつて、フロントグリル３からラジェータ６ｔＡ４
し、てエンジンルーム３内へ流入した空気流は、エンジ
ンルーム１３の前部下側かう外へ抜は出ることなく後端
壁部付近へ達し、そこで制御部材の作用によつ七アンダ
ーカバー１８の下面に出来た負圧によって導引され゛、
第７図中矢印Ｔ２で示すようにエンジンルーム１３から
外へと流出する。これＫよジエンジンルーム１３は全体
にわたって仝控が循環し熱気の滞溜を防止する。またこ
のアンダーカバー１８ｒｉ泥水等がエンジンルーム１６
の前下方からエンジンルーム内へ侵入するのを防止し、
コンプレツサ等の部品の汚損を防ぐ。Once upon a time, the radiator 6tA4 was installed from the front grill 3.
The airflow flowing into the engine room 3 reaches the vicinity of the rear end wall of the engine room 13 without exiting outside the front lower part thereof, and there, due to the action of the control member, the airflow reaches the rear end wall of the engine room 13. It is guided by the negative pressure created on the bottom surface.
It flows out from the engine room 13 as shown by arrow T2 in FIG. Air is circulated throughout the engine room 13 to prevent hot air from accumulating. Also, this under cover 18ri muddy water etc. is in the engine room 16.
prevents entry into the engine compartment from the lower front of the
Prevents contamination of parts such as compressor.
なお、アンダーカバー１８は後端部が開放構造になって
いるが、この後端部分をダツシュロアパネル下面に当て
、一体的に接合してもよい。Although the undercover 18 has an open structure at the rear end, the rear end may be brought into contact with the lower surface of the darts lower panel and joined integrally.
又スリット溝２０に設けたルーバ部１９はカバ一本体１
８ｂと一体構造となっているが、力・（゛゛一本体１８
ｂ部分に着脱可能としてもよい。In addition, the louver portion 19 provided in the slit groove 20 is connected to the cover body 1.
Although it has an integral structure with 8b, the force (゛゛1 body 18
It may be possible to attach and detach the part b.
以上説明したように、本発明によれば、アンダーカバー
を従来に比べて長尺構造とする一方、当該アンダーカバ
ーの後端部分に制御部材を設けてエンジンルーム内の空
気を下向きに導引するようにしたため、エンジンルーム
内の全体にわたって空気の循環ヲ行わせることができる
ようになって熱気の滞溜を防Ｉ卜することが可能とかっ
た。これにより、高温に弱い部品に清熱板を取付ける必
要はなくなり、構造を簡単にすると共に草体重量の軽減
と製造コストの低減を図ることができる。As explained above, according to the present invention, the undercover has a longer structure than the conventional one, and a control member is provided at the rear end portion of the undercover to guide air in the engine room downward. As a result, air can be circulated throughout the engine room, making it possible to prevent hot air from accumulating. This eliminates the need to attach a heat-cleaning plate to components that are sensitive to high temperatures, making it possible to simplify the structure, reduce the weight of plants, and reduce manufacturing costs.
４〜１図はエンジンルームのアンダーカッ５−構造の一
従来例を示す平面図、第２図は第１図に示す従来例の構
造を示す、第１図中用−Ｍ＃！における断面図、ｖｇ３
図は従来例において用いるアンダーカバーを示す斜視図
、第４図は本発明の第１の実施例に係るエンジンルーム
のアンダーカバー構造の平面図、第５図は本発明の第１
の実施例の構造を示す第４図中ｖ−Ｖ線における断′面
図、４２６図は本発明の第■の実施例に用いるアンダー
カバーの斜視図、第７図は本発明の第２の夾施し°り勿
示す断面に＋、第８図は本発明の第２の火ｔＪ、！１例
に用いるアンターカバーを示す斜視図である。
１・・・車体 ６・・・フロントグリル４．１
６．１８・・アンダーカバー
５・・・フロントクロスメンバ
１０・・・サスペンション１メンバ
１７・・・フランジ（制御部材）１９・・・ルーバ部（
制動部材）２０・・・ ス リ ン ト ４４
特許出願人 日産目動車株式会社
第１１
第２図
第４図
第５ＦＩＪFigures 4 to 1 are plan views showing a conventional example of an engine room undercut 5 structure, and Figure 2 shows the structure of the conventional example shown in Figure 1. Cross-sectional view at vg3
The figure is a perspective view showing the undercover used in the conventional example, FIG. 4 is a plan view of the undercover structure of the engine room according to the first embodiment of the present invention, and FIG. 5 is the first embodiment of the present invention.
FIG. 4 is a cross-sectional view taken along the line v-V in FIG. 4 showing the structure of the embodiment, FIG. Figure 8 shows the second flame of the present invention, ! It is a perspective view showing an undercover used in one example. 1... Vehicle body 6... Front grill 4.1
6.18... Undercover 5... Front cross member 10... Suspension 1 member 17... Flange (control member) 19... Louver part (
Braking member) 20... Slint 44 Patent applicant Nissan Motor Co., Ltd. No. 11 Figure 2 Figure 4 Figure 5 FIJ
Claims (1)
スペンションメンバ位置又はサスペンションメンバの後
方位置まで延びるアンダーカバーを取付け、このアンダ
ーカバーの後端部にエンジンルーム内の空気を下方へ導
引する制御部材を設けたことを特徴とするエンジンルー
ムのアンダーカバー構造。An undercover extending from the front cross member position to the suspension member position or the rear position of the suspension member is installed at the bottom of the engine room, and a control member is provided at the rear end of the undercover to guide the air in the engine room downward. An undercover structure in the engine room featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17081781A JPS5873430A (en) | 1981-10-27 | 1981-10-27 | Construction of undercover in engine compartment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17081781A JPS5873430A (en) | 1981-10-27 | 1981-10-27 | Construction of undercover in engine compartment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5873430A true JPS5873430A (en) | 1983-05-02 |
Family
ID=15911876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17081781A Pending JPS5873430A (en) | 1981-10-27 | 1981-10-27 | Construction of undercover in engine compartment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5873430A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62157680U (en) * | 1986-03-28 | 1987-10-06 | ||
| JPH11189153A (en) * | 1997-12-25 | 1999-07-13 | Mitsubishi Electric Corp | On-vehicle cooler |
| JP2011121528A (en) * | 2009-12-11 | 2011-06-23 | Nippon Plast Co Ltd | Vehicle panel structure |
| JP2015054588A (en) * | 2013-09-11 | 2015-03-23 | トヨタ自動車株式会社 | Vehicle lower part structure |
-
1981
- 1981-10-27 JP JP17081781A patent/JPS5873430A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62157680U (en) * | 1986-03-28 | 1987-10-06 | ||
| JPH11189153A (en) * | 1997-12-25 | 1999-07-13 | Mitsubishi Electric Corp | On-vehicle cooler |
| JP2011121528A (en) * | 2009-12-11 | 2011-06-23 | Nippon Plast Co Ltd | Vehicle panel structure |
| JP2015054588A (en) * | 2013-09-11 | 2015-03-23 | トヨタ自動車株式会社 | Vehicle lower part structure |
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