JP3598002B2 - Intake device for vehicle internal combustion engine - Google Patents

Intake device for vehicle internal combustion engine Download PDF

Info

Publication number
JP3598002B2
JP3598002B2 JP28395698A JP28395698A JP3598002B2 JP 3598002 B2 JP3598002 B2 JP 3598002B2 JP 28395698 A JP28395698 A JP 28395698A JP 28395698 A JP28395698 A JP 28395698A JP 3598002 B2 JP3598002 B2 JP 3598002B2
Authority
JP
Japan
Prior art keywords
air cleaner
internal combustion
combustion engine
vehicle
intake device
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 - Fee Related
Application number
JP28395698A
Other languages
Japanese (ja)
Other versions
JP2000110677A (en
Inventor
伸一 難波
宏昭 中野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daihatsu Motor Co Ltd
Toyota Motor Corp
Original Assignee
Daihatsu Motor Co Ltd
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Daihatsu Motor Co Ltd, Toyota Motor Corp filed Critical Daihatsu Motor Co Ltd
Priority to JP28395698A priority Critical patent/JP3598002B2/en
Publication of JP2000110677A publication Critical patent/JP2000110677A/en
Application granted granted Critical
Publication of JP3598002B2 publication Critical patent/JP3598002B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

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

Description

【０００１】
【発明の属する技術分野】
本発明は、車両に搭載した内燃機関において、これに大気空気を導入するための吸気装置に関するものである。
【０００２】
【従来の技術】
最近における車両用内燃機関では、例えば、実開平２−１４７８５５号公報等に記載されているように、エアクリーナを、内燃機関の上面に、当該エアクリーナにおけるクリーンサイドが前記内燃機関における左右両長手側面のうち一方の長手側面に取付けた吸気マニホールドに接続するようにして配設しているが、このようにエアクリーナを内燃機関の上面に配設する場合、エアクリーナは、その高さを低くするように偏平な形状に構成しなければならない。
【０００３】
【発明が解決しようとする課題】
しかし、エアクリーナを、その高さを低くするように偏平な形状に構成すると、その一部が、内燃機関における左右両長手側面のうち他方の長手側面より外向きにはみ出すことになるが、内燃機関における他方の長手側面には、排気マニホールド等のように高温に加熱されたる排気系部品が取付けられていることにより、前記エアクリーナのうち内燃機関における他方の長手側面より外向きにはみ出した部分には、前記排気系部品からの輻射熱が及ぶことに加えて、前記排気系部品で加熱された空気が当って、高い温度に温められ、ひいては、このエアクリーナ内における吸気も、高い温度に温められるから、内燃機関に対する空気の充填効率の低下、ひいては、内燃機関の出力の低下を招来すると言う問題があった。
【０００４】
また、エアクリーナを、高さの低い偏平な形状にすると、その底板が膜振動し易くなるから、吸気騒音が増大すると言う問題もあった。
本発明は、これらの問題を解消した吸気装置を提供することを技術的課題とするものである。
【０００５】
【課題を解決するための手段】
この技術的課題を達成するため本発明は、
「車両に搭載した内燃機関における左右両長手側面のうち一方の長手側面に吸気マニホールドを他方の長手側面に排気系部品を各々装着する一方、前記内燃機関の上面に、前記吸気マニホールドに接続されるエアクリーナを、当該エアクリーナの一部が前記内燃機関における他方の長手側面より外向きにはみ出すように配設して成る吸気装置において、
前記エアクリーナの下面のうち少なくとも前記内燃機関における他方の長手側面からはみ出した部分に、エアクリーナの下面に近接してこれと略平行に延びる遮熱板を、当該遮熱板と前記エアクリーナの下面との間に車両の前後方向に延びる通風路を形成するように一体に設ける。」
と言う構成にした。
【０００６】
【発明の作用・効果】
このように構成することにより、エアクリーナの下面と遮熱板との間における通風路内には、車両の走行に際して発生する走行風が吹き抜けることになるから、排気系部品からエアクリーナへの輻射熱、及び排気系部品で加熱された空気がエアクリーナに当たることを、この走行風の吹き抜けと、前記遮熱板とで確実に遮断することができることに加えて、前記通風路内を吹き抜ける走行風にて、エアクリーナを積極的に冷却することができるのである。
【０００７】
従って、本発明によると、内燃機関の上面に配設したエアクリーナの一部が排気系部品の方向にはみ出している場合において、このエアクリーナが排気系部品によって温めことを確実に防止できると共に、このエアクリーナをより低い温度に冷却できるから、内燃機関に対する空気の充填効率を向上でき、ひいては、内燃機関の出力を向上できる効果を有する。
【０００８】
特に、請求項２に記載したように、遮熱板を、エアクリーナの下面に対して、当該下面に沿って車両の横方向に適宜間隔で配設した複数枚のリブ板を介して一体的に連結することにより、エアクリーナにおける底板を、前記遮熱板及び複数枚のリプ板にて補強することができて、その膜振動を抑制できるから、吸気騒音の低減を確実に達成できる効果を有する。
【０００９】
【発明の実施の形態】
以下、本発明の実施の形態を、図１〜図４の図面について説明する。
この図において、符号１は内燃機関を示し、この内燃機関１は、車両の車体フレーム２におけるフロントエンジンルーム３内に、平面視においてそのクランク軸線４が車両の走行方向に対して略直角になるように横向きにして搭載されている。
【００１０】
また、前記内燃機関１における左右両長手側面５，６のうち車両の走行方向に対して後ろ向きになる一方の長手側面５に吸気マニホールド７が、車両の走行方向に対して前向きになる他方の長手側面６に排気マニホールド８が各々装着され、且つ、この内燃機関１の前方の部位に、当該内燃機関１に対する冷却用のラジエータ９が配設されている。
【００１１】
更にまた、前記内燃機関１の上面には、エアクリーナ１０が、そのクリーンサイドを前記吸気マニホールド７に接続するようにして配設されている。
このエアクリーナ１０におけるダストサイドには、大気空気の導入ダクト１１が接続され、且つ、このエアクリーナ１０は、高さの低い偏平状で、そのダストサイドの一部が、前記内燃機関における左右両長手側面５，６のうち車両の走行方向に対して前向きに他方の長手側面６から前方にはみ出すように構成されている。
【００１２】
そして、前記エアクリーナ１０の下面１０ａのうち少なくとも前記内燃機関１における他方の長手側面６からはみ出した部分に、エアクリーナ１０の下面１０ａに近接してこれと略平行に延びる遮熱板１１を、当該遮熱板１１と前記エアクリーナ１０の下面１０ａとの間に車両の前後方向に延びる通風路１２を形成するように一体に設けて、この遮熱板１１を、エアクリーナ１０の下面１０ａに対して、当該下面１０ａに沿って車両の横方向に適宜間隔で配設した複数枚のリブ板１３を介して一体的に連結する。
【００１３】
なお、前記エアクリーナ１０を金属板製にする場合には、これに遮熱板１１及び各リブ板１３を溶接にて一体的に接合するが、前記エアクリーナ１０を合成樹脂製にする場合には、このエアクリーナを合成樹脂にて成形するとき同時に、これに遮熱板１１及び各リブ板１３を一体化して成形すれば良い。
このように構成することにより、エアクリーナ１０の下面１０ａと遮熱板１１との間における通風路１２内には、車両の走行に際して発生する走行風が矢印で示すように吹き抜けることになるから、排気マニホールド８からエアクリーナ１０への輻射熱、及び排気マニホールド８で加熱された空気がエアクリーナ１０に当たることを、この走行風の吹き抜けと、前記遮熱板１１とで確実に遮断することができることに加えて、前記通風路１２内を吹き抜ける走行風にて、エアクリーナ１０を積極的に冷却することができるのである。
【００１４】
また、前記遮熱板１１を、エアクリーナ１０の下面１０ａに対して、当該下面１０ａに沿って車両の横方向に適宜間隔で配設した複数枚のリブ板１３を介して一体的に連結したことにより、エアクリーナ１０における底板１０ｂを、前記遮熱板１１及び複数枚のリプ板１３にて補強することができるから、その膜振動を抑制できる。
【図面の簡単な説明】
【図１】本発明の実施の形態を示す平面図である。
【図２】図１のＩＩ−ＩＩ視側面図である。
【図３】図２のＩＩＩ −ＩＩＩ 視拡大側面図である。
【図４】図３のＩＶ−ＩＶ視断面図である。
【符号の説明】
１ 内燃機関
２ 車体フレーム
３ フロントエンジンルーム
４ クランク軸線
５，６ 長手側面
７ 吸気マニホールド
８ 排気マニホールド
９ ラジエータ
１０ エアクリーナ
１０ａ エアクリーナの下面
１０ｂ エアクリーナの底板
１１ 遮熱板
１２ 通風路
１３ リブ板[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an intake device for introducing atmospheric air into an internal combustion engine mounted on a vehicle.
[0002]
[Prior art]
In a recent internal combustion engine for a vehicle, for example, as described in Japanese Utility Model Laid-Open No. 2-147855, an air cleaner is provided on an upper surface of the internal combustion engine, and a clean side of the air cleaner is provided on both left and right longitudinal side surfaces of the internal combustion engine. The air cleaner is arranged so as to be connected to the intake manifold attached to one of the longitudinal side surfaces.However, when the air cleaner is arranged on the upper surface of the internal combustion engine in this manner, the air cleaner is flattened so as to reduce its height. It must be configured in a suitable shape.
[0003]
[Problems to be solved by the invention]
However, when the air cleaner is formed into a flat shape so as to reduce its height, a part thereof protrudes outward from the other of the left and right long side surfaces of the internal combustion engine. On the other longitudinal side surface of the air cleaner, an exhaust system component that is heated to a high temperature such as an exhaust manifold is attached, so that a portion of the air cleaner that protrudes outward from the other longitudinal side surface of the internal combustion engine is In addition to the radiant heat from the exhaust system components, the air heated by the exhaust system components hits and is heated to a high temperature, and thus the intake air in the air cleaner is also heated to a high temperature. There has been a problem that the efficiency of charging the internal combustion engine with air is reduced, and the output of the internal combustion engine is reduced.
[0004]
Further, when the air cleaner has a flat shape with a low height, the bottom plate is liable to vibrate the membrane, so that there is a problem that the intake noise increases.
An object of the present invention is to provide an intake device that solves these problems.
[0005]
[Means for Solving the Problems]
To achieve this technical problem, the present invention
"The intake manifold is mounted on one of the left and right longitudinal sides of the internal combustion engine mounted on the vehicle, and the exhaust system components are mounted on the other longitudinal side, while the upper surface of the internal combustion engine is connected to the intake manifold. An air intake device, wherein an air cleaner is disposed such that a part of the air cleaner protrudes outward from the other longitudinal side surface of the internal combustion engine.
At least a portion of the lower surface of the air cleaner that protrudes from the other longitudinal side surface of the internal combustion engine is provided with a heat shield plate that is proximate to the lower surface of the air cleaner and extends substantially parallel thereto, between the heat shield plate and the lower surface of the air cleaner. It is provided integrally so as to form a ventilation path extending in the front-rear direction of the vehicle. "
It was configured to say.
[0006]
[Action and Effect of the Invention]
With this configuration, the traveling wind generated when the vehicle travels flows through the ventilation path between the lower surface of the air cleaner and the heat shield plate, so that radiant heat from the exhaust system components to the air cleaner, and In addition to being able to reliably block the air heated by the exhaust system components from hitting the air cleaner by the blow-by of the traveling wind and the heat shield plate, the air-cleaning is performed by the traveling wind blowing through the ventilation path. Can be actively cooled.
[0007]
Therefore, according to the present invention, when a part of the air cleaner disposed on the upper surface of the internal combustion engine protrudes in the direction of the exhaust system components, the air cleaner can be reliably prevented from being heated by the exhaust system components, and the air cleaner can be prevented. Can be cooled to a lower temperature, so that the efficiency of charging the internal combustion engine with air can be improved, and the output of the internal combustion engine can be improved.
[0008]
In particular, as described in claim 2, the heat shield plate is integrally formed with the lower surface of the air cleaner via a plurality of rib plates disposed at appropriate intervals in the lateral direction of the vehicle along the lower surface. By the connection, the bottom plate of the air cleaner can be reinforced by the heat shield plate and the plurality of lip plates, and the film vibration thereof can be suppressed, so that the effect of reliably reducing the intake noise can be achieved.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to FIGS.
In this figure, reference numeral 1 denotes an internal combustion engine. In the internal combustion engine 1, a crank axis 4 is substantially perpendicular to a traveling direction of the vehicle in a front engine room 3 of a vehicle body frame 2 in a plan view. It is mounted horizontally.
[0010]
An intake manifold 7 is provided on one of the left and right longitudinal side surfaces 5 and 6 of the internal combustion engine 1 which faces rearward with respect to the traveling direction of the vehicle, and the other longitudinal side which faces forward with respect to the traveling direction of the vehicle. An exhaust manifold 8 is mounted on each of the side surfaces 6, and a radiator 9 for cooling the internal combustion engine 1 is provided at a position in front of the internal combustion engine 1.
[0011]
Furthermore, an air cleaner 10 is provided on the upper surface of the internal combustion engine 1 so that its clean side is connected to the intake manifold 7.
An air duct 10 is connected to a dust side of the air cleaner 10. The air cleaner 10 has a flat shape with a low height, and a part of the dust side is formed on both left and right longitudinal side surfaces of the internal combustion engine. 5 and 6 are configured to protrude forward from the other longitudinal side surface 6 in the forward direction with respect to the traveling direction of the vehicle.
[0012]
At least a portion of the lower surface 10a of the air cleaner 10 protruding from the other longitudinal side surface 6 of the internal combustion engine 1 is provided with a heat shield plate 11 which is close to the lower surface 10a of the air cleaner 10 and extends substantially parallel thereto. An air passage 12 extending in the front-rear direction of the vehicle is provided integrally between the hot plate 11 and the lower surface 10 a of the air cleaner 10. They are integrally connected via a plurality of rib plates 13 arranged at appropriate intervals in the lateral direction of the vehicle along the lower surface 10a.
[0013]
When the air cleaner 10 is made of a metal plate, the heat shield plate 11 and each rib plate 13 are integrally joined to the air cleaner 10 by welding, but when the air cleaner 10 is made of a synthetic resin, When the air cleaner is formed of synthetic resin, the heat shield plate 11 and each rib plate 13 may be formed integrally with the air cleaner.
With this configuration, the traveling wind generated when the vehicle travels flows through the ventilation path 12 between the lower surface 10a of the air cleaner 10 and the heat shield plate 11 as shown by the arrow, so that the exhaust air is exhausted. In addition to being able to reliably block the radiant heat from the manifold 8 to the air cleaner 10 and the air heated by the exhaust manifold 8 from hitting the air cleaner 10, the blow-by of the traveling wind and the heat shield plate 11 can reliably block the air. The air cleaner 10 can be actively cooled by the traveling wind flowing through the ventilation passage 12.
[0014]
Further, the heat shield plate 11 is integrally connected to the lower surface 10a of the air cleaner 10 via a plurality of rib plates 13 arranged at appropriate intervals in the lateral direction of the vehicle along the lower surface 10a. Thereby, the bottom plate 10b of the air cleaner 10 can be reinforced by the heat shield plate 11 and the plurality of lip plates 13, so that the film vibration can be suppressed.
[Brief description of the drawings]
FIG. 1 is a plan view showing an embodiment of the present invention.
FIG. 2 is a side view taken along the line II-II of FIG.
FIG. 3 is an enlarged side view taken along the line III-III of FIG. 2;
FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Internal combustion engine 2 Body frame 3 Front engine room 4 Crank axis 5, 6 Longitudinal side 7 Intake manifold 8 Exhaust manifold 9 Radiator 10 Air cleaner 10a Lower surface of air cleaner 10b Bottom plate of air cleaner 11 Heat shield plate 12 Ventilation passage 13 Rib plate

Claims (2)

車両に搭載した内燃機関における左右両長手側面のうち一方の長手側面に吸気マニホールドを他方の長手側面に排気系部品を各々装着する一方、前記内燃機関の上面に、前記吸気マニホールドに接続されるエアクリーナを、当該エアクリーナの一部が前記内燃機関における他方の長手側面より外向きにはみ出すように配設して成る吸気装置において、
前記エアクリーナの下面のうち少なくとも前記内燃機関における他方の長手側面からはみ出した部分に、エアクリーナの下面に近接してこれと略平行に延びる遮熱板を、当該遮熱板と前記エアクリーナの下面との間に車両の前後方向に延びる通風路を形成するように一体に設けたことを特徴とする車両用内燃機関における吸気装置。An air cleaner connected to the intake manifold is mounted on an upper surface of the internal combustion engine while an intake manifold is mounted on one of the left and right longitudinal sides of an internal combustion engine mounted on a vehicle, and an exhaust system component is mounted on the other longitudinal side. In the intake device, a part of the air cleaner is disposed so as to protrude outward from the other longitudinal side surface of the internal combustion engine,
At least a portion of the lower surface of the air cleaner that protrudes from the other longitudinal side surface of the internal combustion engine is provided with a heat shield plate that is proximate to the lower surface of the air cleaner and extends substantially parallel thereto, between the heat shield plate and the lower surface of the air cleaner. An intake device for an internal combustion engine for a vehicle, wherein the intake device is integrally provided so as to form a ventilation path extending in the front-rear direction of the vehicle. 前記遮熱板を、エアクリーナの下面に対して、当該下面に沿って車両の横方向に適宜間隔で配設した複数枚のリブ板を介して一体的に連結したことを特徴とする請求項１に記載した車両用内燃機関における吸気装置。2. The heat shield plate is integrally connected to the lower surface of the air cleaner via a plurality of rib plates disposed at appropriate intervals in the lateral direction of the vehicle along the lower surface. An intake device for an internal combustion engine for a vehicle according to the above.
JP28395698A 1998-10-06 1998-10-06 Intake device for vehicle internal combustion engine Expired - Fee Related JP3598002B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28395698A JP3598002B2 (en) 1998-10-06 1998-10-06 Intake device for vehicle internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28395698A JP3598002B2 (en) 1998-10-06 1998-10-06 Intake device for vehicle internal combustion engine

Publications (2)

Publication Number Publication Date
JP2000110677A JP2000110677A (en) 2000-04-18
JP3598002B2 true JP3598002B2 (en) 2004-12-08

Family

ID=17672412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28395698A Expired - Fee Related JP3598002B2 (en) 1998-10-06 1998-10-06 Intake device for vehicle internal combustion engine

Country Status (1)

Country Link
JP (1) JP3598002B2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4253824B2 (en) * 1999-02-04 2009-04-15 マツダ株式会社 Engine intake system
JP5077568B2 (en) * 2008-08-25 2012-11-21 スズキ株式会社 Engine intake system
JP6761130B2 (en) * 2017-08-09 2020-09-23 本田技研工業株式会社 Engine intake structure
CN112502871A (en) * 2021-01-14 2021-03-16 河南平和滤清器有限公司 Overhead air filter heat insulation cotton connecting and fixing structure

Also Published As

Publication number Publication date
JP2000110677A (en) 2000-04-18

Similar Documents

Publication Publication Date Title
JP4429429B2 (en) Motorcycle cowling device
US7654357B2 (en) Radiator coil mounted on a motorcycle
US20030183432A1 (en) Engine cooling system for rear-engine vehicle
JP6549642B2 (en) Vehicle intake structure
JP3598002B2 (en) Intake device for vehicle internal combustion engine
JP5397769B2 (en) Cooling device for vehicle engine
JP2007308000A (en) Engine air-intake duct structure
JPH0565086A (en) Motor scooter engine cooling device
JP2004075020A (en) Vehicle front structure
JP4378604B2 (en) Vehicle cooling device
JP4216098B2 (en) Exhaust system for motorcycles
JPH10141157A (en) Intake-air temperature reducing structure for vehicle engine
JP2725185B2 (en) Radiator for motorcycles
JPH1067340A (en) Cooling structure using enginehood for vehicle
JP2539200B2 (en) Air-cooled engine structure for motorcycles
JP2010216348A (en) Air-cooled cooling device of internal combustion engine for vehicle
JP2516549Y2 (en) Front bumper for vehicle
JP2569200B2 (en) Cooling air intake structure at the front of the car
JP4258056B2 (en) Front body structure of automobile
JP7524749B2 (en) Vehicle front structure
JPH08169243A (en) Intercooler
JP6930814B2 (en) Vehicle intake introduction device
JP2001341534A (en) Cooling device for automobile
JPH0512150Y2 (en)
JP4038760B2 (en) Underfloor engine cooling structure

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20040305

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20040316

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20040513

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20040810

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20040910

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20070917

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080917

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080917

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090917

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100917

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110917

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110917

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120917

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120917

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130917

Year of fee payment: 9

LAPS Cancellation because of no payment of annual fees