JPS5982567A - Suction system support construction for engine - Google Patents
Suction system support construction for engineInfo
- Publication number
- JPS5982567A JPS5982567A JP19282882A JP19282882A JPS5982567A JP S5982567 A JPS5982567 A JP S5982567A JP 19282882 A JP19282882 A JP 19282882A JP 19282882 A JP19282882 A JP 19282882A JP S5982567 A JPS5982567 A JP S5982567A
- Authority
- JP
- Japan
- Prior art keywords
- engine
- carburetor
- intake
- air cleaner
- vibration
- 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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10078—Connections of intake systems to the engine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/1015—Air intakes; Induction systems characterised by the engine type
- F02M35/10196—Carburetted engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
- F02M35/10295—Damping means, e.g. tranquillising chamber to dampen air oscillations
-
- 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
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/20—SOHC [Single overhead camshaft]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
- F02M35/161—Arrangement of the air intake system in the engine compartment, e.g. with respect to the bonnet or the vehicle front face
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vibration Prevention Devices (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は車両のエンジンに付設される吸気系の支持構造
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support structure for an intake system attached to a vehicle engine.
車両のエンジンに付設される吸気系は、気化器の吸気通
路が縦向のダウンドラフト型が多く、従ってエアクリー
ナは上方に配設され、ボンネットラインを低く抑えるに
は気化器及びエアクリーナの配置構造が複雑になシ易い
。Most of the intake systems attached to vehicle engines are of the downdraft type in which the intake passage of the carburetor is vertical, so the air cleaner is placed upwards, and in order to keep the bonnet line low, the arrangement structure of the carburetor and air cleaner must be adjusted. Easy to get complicated.
一方、吸気管及び気化器の吸気通路が横向のサイドドラ
フト型の気化器を用いた場合はエアクリーナを含む吸気
系は横方向に延出し、高さが大きくならないことから上
記した不利を解決することができる。On the other hand, if a side-draft type carburetor is used in which the intake pipe and the intake passage of the carburetor are horizontal, the intake system including the air cleaner extends horizontally and the height does not increase, which solves the above-mentioned disadvantage. I can do it.
ところでかかるタイプの吸気系は、吸気管、気化器の吸
気通路は略水平で、略水平に形成されたシリンダヘッド
の吸気通路上流端に略水平に延出される吸気管を、又こ
れに気化器を、更にエアクリーナを順次連結することに
より吸気系か構成されることとなる。従って例えば横置
エンジンでは吸気系はエンジン上部の後方に略水平に延
出される如く設けられることとなシ、ために吸気系はエ
ンジンの回転振動及び車両全体の上下振動の影響を受け
、振動の影響で気化器の油面が変動し、円滑な態別供給
を図る上で改善が望丑しく、特に可変ベンチュリ式気化
器を採用した場合には上記振動の影響で混合比（Ａ／’
Ｆ）が変化して甚だしくはエンジン不調を招く虞れがあ
る。By the way, in this type of intake system, the intake pipe and the intake passage of the carburetor are approximately horizontal, and the intake pipe extending approximately horizontally from the upstream end of the intake passage of the cylinder head, which is formed approximately horizontally, is also connected to the carburetor. An intake system is constructed by sequentially connecting these and an air cleaner. Therefore, for example, in a horizontally mounted engine, the intake system is installed so as to extend approximately horizontally to the rear of the upper part of the engine.Therefore, the intake system is affected by the rotational vibration of the engine and the vertical vibration of the entire vehicle. As a result, the oil level in the carburetor fluctuates, and improvement is desirable in order to ensure smooth supply. Especially when a variable venturi type carburetor is adopted, the mixing ratio (A/'
F) may change, which may even cause engine malfunction.
従って上記吸気系の防振支持構造の改良が望まれるが、
車両用エンジンではエンジンマウントの防振弾性支持等
の関係から上記吸気系端をなすエアクリーナ側で約±３
０ 程度回転振動するため、車体部分に吸気系を支持す
ることは困難であり、一方、シリンダヘッド、吸気管、
気化器、エアクリーナの各連結部の強化のみでは略水平
に延びる吸気系全体の重量を支持し、且つ振動を吸収す
ることは困難である。Therefore, it is desired to improve the vibration-proof support structure of the intake system.
In vehicle engines, due to vibration-proof elastic support of the engine mount, etc., the air cleaner side that forms the end of the intake system is approximately ±3
It is difficult to support the intake system on the car body due to rotational vibration of about 0.
It is difficult to support the weight of the entire intake system, which extends substantially horizontally, and to absorb vibrations only by strengthening the connecting parts of the carburetor and the air cleaner.
本発明は以上の吸気系における不利を克服すべくなされ
たものである。The present invention has been made to overcome the above disadvantages in the intake system.
本発明の目的とする処は、前記型式の吸気系の確実な支
持と高い防振性とを実現し、以上を簡素な構造で企図し
得る如くした吸気系の支持構造を提供し、以上の目的を
達成するため本発明は、気化器と吸気管とを弾性部材で
連結し、エンジンとエアクリーナとを弾性部材を介して
支持部材によシ連結するように構成した。It is an object of the present invention to provide a support structure for an intake system that achieves reliable support and high vibration isolation for the above-mentioned type of intake system, and that allows the above to be achieved with a simple structure. In order to achieve the object, the present invention is configured such that a carburetor and an intake pipe are connected by an elastic member, and an engine and an air cleaner are connected to a support member via an elastic member.
次に本発明の好適一実施例を添付図面を参照しつつ詳述
する。Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
第１図は車両１の前部に搭載されるエンジン２の概略側
面図で、車両１の前部１０１にはボンネット１０３で開
閉自在なエンジンルーム１０２が設けられ、エンジンル
ーム１０２は車室側１０４と隔壁１０５で区画されてい
る。FIG. 1 is a schematic side view of an engine 2 mounted on the front part of a vehicle 1. An engine compartment 102 is provided in the front part 101 of the vehicle 1 and can be opened and closed with a bonnet 103. and a partition wall 105.
吸気系を含むエンジン２を第２図で拡大して示し、エン
ジン２はクランクケース２０１、この上に設けられたシ
リンダブロック２０２、この」二に設けられたシリンダ
ヘッド２０３等からなり、実施例ではエンジン２は横置
に配設され、フロントエンジン、フロントドライブ式の
車両を示している。エンジン２は上部が若干前傾する如
く配設され、シリンダヘッド２０３に設けられる吸気ボ
ー１−２０４は後方に開口し、ポート２０４は上流部で
はその軸線が略水平をなす。かかる吸気ポート２０４が
開口する端面２０５に吸気管３の下流端３０１をこれの
吸気通路３０２の軸線がポート上流部の軸線と同一なる
如く略水平に構成してボルト３０３等で結着する。The engine 2 including the intake system is shown in an enlarged view in FIG. 2, and the engine 2 consists of a crankcase 201, a cylinder block 202 provided on the crankcase 201, a cylinder head 203 provided on the top of the crankcase 201, and the like. The engine 2 is disposed horizontally, and the vehicle is of a front engine and front drive type. The engine 2 is arranged so that the upper part thereof is slightly inclined forward, the intake bows 1-204 provided in the cylinder head 203 open rearward, and the axis of the port 204 is approximately horizontal in the upstream portion. The downstream end 301 of the intake pipe 3 is arranged substantially horizontally to the end surface 205 where the intake port 204 opens so that the axis of the intake passage 302 is the same as the axis of the upstream portion of the port, and is connected with bolts 303 or the like.
吸気管３の上流端には部分的に数句フランジ部３０４を
設け、これに吸気通路３０２と同内径を有するゴム等の
防振弾性部材からなる連結管４の上流端部を結着する。A flange portion 304 is partially provided at the upstream end of the intake pipe 3, and an upstream end portion of a connecting pipe 4 made of a vibration-proof elastic member such as rubber and having the same inner diameter as the intake passage 302 is connected to this flange portion 304.
連結管４は上流端部に環状のフランジ部材４０１を部分
的に焼付埋設する如くして一体に備え、フランジ部材４
０１の当面４０２を吸気管３の上流端壁３０５にシール
用Ｏリング３０６等を介して突き当て、ボルトナツト４
０３等でフランジ部材４０１をフランジ部３０４に結着
し、連結管４の軸線は略水平で吸気管３の吸気通路３０
２の軸線と一致する。The connecting pipe 4 is integrally provided with an annular flange member 401 at the upstream end by partially burning and embedding the flange member 401.
01 to the upstream end wall 305 of the intake pipe 3 via a sealing O-ring 306, etc., and then tighten the bolt/nut 4.
The flange member 401 is connected to the flange portion 304 with a wire such as 03, and the axis of the connecting pipe 4 is approximately horizontal, and the intake passage 30 of the intake pipe 3 is
It coincides with the axis of 2.
な吸気道５０１を形成するボディ５０２の下流部を嵌合
し、連結管４の中央部乃至上流部外周にバンド４０６を
巻回締着し、吸気管の上流部とボディ５０２の下流部５
０３を結着する。これにより吸気管３と気化器５のボデ
ィ下流部との間は防振弾性機能を有する連結管４で連通
接続されることと々る０気化器５の吸気道５０１はその
軸線が略水平で吸気通路３０２と軸線が一致し、気化器
５は実施例ではベンチュリにピストン５０４が臨む可変
ベンチュリ式のものを採用し、気化器５のボディ５０２
上流端にエアクリーナ６を結合する。エアクリーナ６は
略垂直なボディ上流端壁５０５に結着される略垂直な板
状のベース部月６０１と、これに被冠結着される帽状の
カバー６０２と、この間に介設されるトーナツツ状のエ
レメント６０３とからなり、エレメント６０３は内径部
の軸線が略水平をなす。The downstream part of the body 502 that forms the intake pipe 501 is fitted, and the band 406 is wound and tightened around the outer circumference of the central part to the upstream part of the connecting pipe 4, thereby connecting the upstream part of the intake pipe and the downstream part 5 of the body 502.
Bind 03. As a result, the intake pipe 3 and the downstream part of the body of the carburetor 5 are connected to each other by the connecting pipe 4 having a vibration-proof elastic function.The axis of the intake pipe 501 of the carburetor 5 is approximately horizontal. The axis of the carburetor 5 coincides with the intake passage 302, and the carburetor 5 adopts a variable venturi type in which a piston 504 faces the venturi in the embodiment.
An air cleaner 6 is connected to the upstream end. The air cleaner 6 includes a substantially vertical plate-shaped base part 601 fixed to a substantially vertical body upstream end wall 505, a cap-shaped cover 602 fixed to the base part 601, and a tornado interposed therebetween. The element 603 has an inner diameter portion whose axis is substantially horizontal.
以上によシ吸気系の上流側のニレメンｌ−６０３内部空
間、気化器吸気道５０１、連結管４、吸気管の吸気通路
３０２、吸気ポート２０４の上流部は略水平な連続した
吸気通路系を形成し、実施例はエンジン２が若干」二前
傾しているため下流側が上流側に比し若干下傾している
。かかるエアクリーナ６のベース部材６０１の気化器ボ
ディ５０２下方に延びる中間下部外底面６０４の一部に
は側面り型のブラケット６０５を結合し、ブラケツｌ−
６０５は外形がアングル状の部材をＬ型に折曲した形状
をなし２、一方、エンジン２の剛性の高い部分、例えば
シリンダブロック２０３の下部でクランクケースの上半
部をなす部分２０６にボス部２０７を後方に突設し、こ
れにアングル状断面の支持部材７の基部７０１をボルト
７０２笠で結着する。支持部材７は後上方に延出し、高
位の先端部７０３にはフラットな座部７０４を備え、前
記ブラケッ） ６０５にはペース部材の前記外底面６０
４から略水平方向に突出する座部６０６を備え、座部６
０６と７０４間にラバーブツシュの如き防振弾性部材８
を介装し、該部材８、座部６０６ 、７０４にボルト６
０７を通し、ナラ） ６０８で結着する。尚実施例に代
えて支持部材７０基部７０１とエンジン側のボス部２０
７の間に弾性部材８を介設しても良く、更に双方に弾性
部材を介設しても良い。As described above, the upstream part of the Niremen l-603 internal space on the upstream side of the intake system, the carburetor intake passage 501, the connecting pipe 4, the intake passage 302 of the intake pipe, and the intake port 204 form a substantially horizontal continuous intake passage system. In the embodiment, the engine 2 is slightly tilted forward, so that the downstream side is slightly tilted downward compared to the upstream side. A side-mounted bracket 605 is coupled to a part of the intermediate lower outer bottom surface 604 extending below the carburetor body 502 of the base member 601 of the air cleaner 6.
Reference numeral 605 has a shape in which an angle-shaped member is bent into an L shape 2. On the other hand, there is a boss portion in a highly rigid part of the engine 2, for example, a part 206 which is the lower part of the cylinder block 203 and forms the upper half of the crankcase. 207 is provided to protrude rearward, and the base 701 of the support member 7 having an angled cross section is connected to this with a bolt 702 cap. The support member 7 extends rearwardly and upwardly and has a flat seat 704 at a higher distal end 703, and the outer bottom surface 60 of the pace member at the bracket 605.
4, the seat 606 is provided with a seat 606 that protrudes substantially horizontally from the
A vibration-proof elastic member 8 such as a rubber bushing is installed between 06 and 704.
are interposed, and bolts 6 are attached to the member 8 and the seats 606 and 704.
Pass through 07 and tie at 608. Note that instead of the embodiment, the support member 70 base 701 and the engine side boss portion 20
An elastic member 8 may be interposed between 7, or elastic members may be interposed between both.
次にその作用、効果を詳述すると、エンジン２は車体に
対して既知の如く防振支持されているが、エンジンには
クランクシャフトの回転に起因して回転振動が発生し、
これが吸気系に伝えられるが、気化器５とシリンダヘッ
ド側に直ちに固定された吸気管３との間には防振弾性機
能を有する連結管４が介装され、この部分でエンジン側
の振動は吸収、減衰されることとなる。そしてこの間を
連結管でつなぐことにより上流側の気化器、エアクリー
ナの重量支持が問題とカるが、エアクリーナ６及びこれ
に剛に結合された気化器５は、エアクリーナのベース部
層６０１がエンジンから延出された支持部材７で支持さ
れることから確実に支持され、支持部材７とベース部材
６０１との間には防振弾性体８を介装していることから
、支持部材７を経由してエアクリーナ、気化器に伝えら
れる振動は該弾性体８により吸収、減衰されることとな
る。かくして吸気系は重量支持上有利に、又エンジンか
らの振動を遮断する如く支持されることとなる。Next, to explain the operation and effect in detail, the engine 2 is supported against the vehicle body in a known vibration-proof manner, but rotational vibration occurs in the engine due to the rotation of the crankshaft.
This is transmitted to the intake system, but a connecting pipe 4 with a vibration-proof elastic function is interposed between the carburetor 5 and the intake pipe 3 which is immediately fixed to the cylinder head side, and this part prevents vibrations on the engine side. It will be absorbed and attenuated. By connecting these with a connecting pipe, the weight support of the upstream carburetor and air cleaner becomes a problem, but the air cleaner 6 and the carburetor 5 rigidly connected to it are designed so that the base layer 601 of the air cleaner is separated from the engine. Since it is supported by the extended support member 7, it is reliably supported, and since the vibration-proof elastic body 8 is interposed between the support member 7 and the base member 601, the vibration is transmitted through the support member 7. The vibrations transmitted to the air cleaner and the carburetor are absorbed and attenuated by the elastic body 8. In this way, the intake system is supported in a manner advantageous in terms of weight support and in a manner that isolates vibrations from the engine.
そしてこれにより気化器燃料供給の円滑を保障し、かか
る利点を得つつ吸気系の吸気通路系横向きによるボンイ
、ットラインの高さの抑制等の所期の目的を達成するこ
とができる他、吸気管と気化器との間を弾性体からなる
連結管で連結し、エンジン側から支持部月を出してエア
クリーナに弾性体を介して結合するという簡素な構造で
上記を図ることができる。This ensures smooth fuel supply to the carburetor, and while obtaining these advantages, it is possible to achieve the desired purpose such as suppressing the height of the bonito line by oriented the intake passage sideways in the intake system. The above can be achieved with a simple structure in which the air cleaner and the carburetor are connected by a connecting pipe made of an elastic body, and the supporting portion is extended from the engine side and connected to the air cleaner via the elastic body.
本発明は以上の如き多大の利点を有する。The present invention has many advantages as described above.
第１図は車両前部の説明的側面図、第２図は吸気系を含
むエンジンの拡大側面図で、要部を破断した図である。
尚図面中２はエンジン、２ｏ３はシリンダヘッド、３は
吸気管、４は連結管、５は気化器、６はエアクリーナ、
７は支持部材、８ｒ／′ｉ弾性体である。
特許出願人 本田技研工業株式会社FIG. 1 is an explanatory side view of the front part of the vehicle, and FIG. 2 is an enlarged side view of the engine including the intake system, with main parts cut away. In the drawing, 2 is the engine, 2o3 is the cylinder head, 3 is the intake pipe, 4 is the connecting pipe, 5 is the carburetor, 6 is the air cleaner,
7 is a support member, and 8r/'i is an elastic body. Patent applicant Honda Motor Co., Ltd.
Claims (1)
れた気化器、該気化器に連結されたエアクリーナで吸気
系を構成し、該吸気系の吸気通路を略水平に構成すると
ともに、前記吸気管と気化器とを弾性体からなる連結管
で連結し、エアクリーナをエンジン本体と弾性体を介し
て支持部材により連結したことを特徴とするエンジンの
吸気系支持構造。An intake system is composed of an intake pipe fixed to the cylinder head, a carburetor connected to the intake pipe, and an air cleaner connected to the carburetor. An engine intake system support structure characterized in that a pipe and a carburetor are connected by a connecting pipe made of an elastic body, and an air cleaner is connected to an engine main body by a support member via the elastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19282882A JPS5982567A (en) | 1982-11-02 | 1982-11-02 | Suction system support construction for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19282882A JPS5982567A (en) | 1982-11-02 | 1982-11-02 | Suction system support construction for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5982567A true JPS5982567A (en) | 1984-05-12 |
Family
ID=16297649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19282882A Pending JPS5982567A (en) | 1982-11-02 | 1982-11-02 | Suction system support construction for engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5982567A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63168262U (en) * | 1987-04-24 | 1988-11-01 | ||
| US5035211A (en) * | 1990-04-23 | 1991-07-30 | Outboard Marine Corporation | Internal combustion engine |
| US5220889A (en) * | 1991-05-22 | 1993-06-22 | Dr. Ing. H.C.F. Porsche Ag | Intake system for a multi-cylinder internal-combustion engine |
| US5231957A (en) * | 1991-07-31 | 1993-08-03 | Firma Carl Freudenberg | Resilient connecting device between an internal combustion engine and an intake pipe thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5020177U (en) * | 1973-06-16 | 1975-03-07 | ||
| JPS5742159B2 (en) * | 1978-10-13 | 1982-09-07 |
-
1982
- 1982-11-02 JP JP19282882A patent/JPS5982567A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5020177U (en) * | 1973-06-16 | 1975-03-07 | ||
| JPS5742159B2 (en) * | 1978-10-13 | 1982-09-07 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63168262U (en) * | 1987-04-24 | 1988-11-01 | ||
| US5035211A (en) * | 1990-04-23 | 1991-07-30 | Outboard Marine Corporation | Internal combustion engine |
| US5220889A (en) * | 1991-05-22 | 1993-06-22 | Dr. Ing. H.C.F. Porsche Ag | Intake system for a multi-cylinder internal-combustion engine |
| US5231957A (en) * | 1991-07-31 | 1993-08-03 | Firma Carl Freudenberg | Resilient connecting device between an internal combustion engine and an intake pipe thereof |
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