JPH07133746A - Intake device for engine - Google Patents

Intake device for engine

Info

Publication number
JPH07133746A
JPH07133746A JP5303543A JP30354393A JPH07133746A JP H07133746 A JPH07133746 A JP H07133746A JP 5303543 A JP5303543 A JP 5303543A JP 30354393 A JP30354393 A JP 30354393A JP H07133746 A JPH07133746 A JP H07133746A
Authority
JP
Japan
Prior art keywords
intake
manifold
inlet pipe
butterfly valve
engine
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.)
Granted
Application number
JP5303543A
Other languages
Japanese (ja)
Other versions
JP2785661B2 (en
Inventor
Yasuhiro Yokoyama
泰弘 横山
Seiji Okada
誠二 岡田
Shinichi Amimoto
真一 網本
Sohei Takahashi
宗平 高橋
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.)
Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
Original Assignee
Mitsubishi Motors Corp
Mitsubishi Automotive Engineering Co Ltd
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 Mitsubishi Motors Corp, Mitsubishi Automotive Engineering Co Ltd filed Critical Mitsubishi Motors Corp
Priority to JP5303543A priority Critical patent/JP2785661B2/en
Publication of JPH07133746A publication Critical patent/JPH07133746A/en
Application granted granted Critical
Publication of JP2785661B2 publication Critical patent/JP2785661B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

PURPOSE:To miniaturize an intake manifold in a compact size while suppressing increase of intake air resistance and maintaining noise eliminating effect of the intake air, in a vehicle engine such as an automobile. CONSTITUTION:The inlet pipe 23 of an intake manifold 1 is projected in a manifold 1, a butterfly valve 4 is supported by the projection part, intake fluid motion direction of the projection part is cut so as to ensure an intake fluid motion area, the rotary supporting shaft 24 of the butterfly valve 4 is penetrated in the manifold 1, and the rotary supporting shaft 24 is connected to a driving device arranged on the outside of a manifold 1 side wall 21e.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はエンジン、特に自動車用
エンジンにおいて、吸気マニホールドの入口管部に入口
管路面積を制御するバタフライ弁を備えたエンジンの吸
気装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine, particularly an automobile engine, which is provided with an intake system for an engine provided with a butterfly valve for controlling an area of an inlet pipe line in an inlet pipe portion of an intake manifold.

【0002】[0002]

【従来の技術】図3〜図4に自動車用エンジンにおける
吸気マニホールド近傍の構造図を示す。図において1は
吸気マニホールド、2は各シリンダ(この例の場合は4
シリンダ)に連結される吸気枝管、3はマニホールドの
入口管部である。
2. Description of the Related Art FIGS. 3 to 4 are structural views in the vicinity of an intake manifold in an automobile engine. In the figure, 1 is an intake manifold, 2 is each cylinder (in this example, 4
The intake branch pipe 3 connected to the cylinder) is an inlet pipe portion of the manifold.

【0003】前記マニホールドの入口管部3内には、該
入口管路の開度即ち通路面積を調整するバタフライ弁4
が設けられている。該バタフライ弁4はこれの回転支軸
4a,4bを入口管部3のボス部3aの支持穴3b内に
嵌合することにより、該支持部に回動自在に支持され
る。
In the inlet pipe portion 3 of the manifold, a butterfly valve 4 for adjusting the opening of the inlet pipe, that is, the passage area.
Is provided. The butterfly valve 4 is rotatably supported by the supporting portion by fitting the rotation supporting shafts 4a and 4b into the supporting hole 3b of the boss portion 3a of the inlet pipe portion 3.

【0004】前記バタフライ弁4の回転支軸の一方4b
には入口管部3の側壁外部に取付けられた弁駆動用アク
チュエータ5の出力軸が連結され、該アクチュエータ5
によりバタフライ弁4が入口管部3内において回動せし
められ、入口管部3の通路面積を調節することにより、
吸気マニホールド1における吸気の消音効果を調節して
いる。
One of the rotating shafts 4b of the butterfly valve 4
An output shaft of a valve driving actuator 5 mounted outside the side wall of the inlet pipe portion 3 is connected to the actuator 5.
The butterfly valve 4 is rotated in the inlet pipe portion 3 by the above, and the passage area of the inlet pipe portion 3 is adjusted,
The muffling effect of intake air in the intake manifold 1 is adjusted.

【0005】[0005]

【発明が解決しようとする課題】自動車等の車両用エン
ジンは、狭いボンネット内に収納されるため、コンパク
ト性が強く要求される。殊に吸気マニホールド部は、吸
気抵抗の低減、吸気の消音効果等の面から比較的大きな
スペースを必要とすることから、吸気抵抗を増大するこ
となくかつ吸気の消音効果を低下させることなく、小型
コンパクト化を図る必要がある。
Since an engine for a vehicle such as an automobile is housed in a narrow bonnet, compactness is strongly required. In particular, since the intake manifold portion requires a relatively large space in terms of reduction of intake resistance, intake noise muffling effect, etc., it is small in size without increasing intake resistance and reducing intake noise muffling effect. It is necessary to make it compact.

【0006】図3〜図4に示す従来の吸気装置において
は、入口管部3内にバタフライ弁4を設けているため、
該バタフライ弁3及び入口管部3の外側に設けられたア
クチュエータ5の設置スペース分だけ入口管部3を反シ
リンダ側へ突出せざる得ない構造となる。これにより、
吸気マニホールド1の全高Hが高くなってこれの設置ス
ペースが増大し、コンパクト性を欠く構造となるととも
に、吸気抵抗も改善されないという問題点が生起され
る。
In the conventional intake device shown in FIGS. 3 to 4, since the butterfly valve 4 is provided in the inlet pipe portion 3,
The structure is such that the inlet pipe portion 3 has to be projected to the side opposite to the cylinder side by the installation space of the actuator 5 provided outside the butterfly valve 3 and the inlet pipe portion 3. This allows
The total height H of the intake manifold 1 is increased, the installation space for the intake manifold 1 is increased, the structure is not compact, and the intake resistance is not improved.

【0007】本発明の目的は、車両用エンジンにおい
て、吸気抵抗の増加を抑制しかつ吸気の消音効果を維持
しつつ吸気マニホールドの全高を低減し、小型コンパク
トな吸気装置を提供することである。
An object of the present invention is to provide a small and compact intake device for a vehicle engine, which suppresses an increase in intake resistance and maintains the effect of silencing intake air while reducing the overall height of the intake manifold.

【0008】[0008]

【課題を解決するための手段】本発明は前記問題点を解
決するため、吸気マニホールドの入口管部をマニホール
ド内に突出せしめて該突出部のうちの吸気流出口側に向
いた方の面をバタフライ弁の回転支軸に略平行な切断面
となるように削り落してカット部を形成し、バタフライ
弁の回転支軸をマニホールド内を貫通させてマニホール
ド側部外側に設けた駆動装置(アクチュエータ)に連結
したことを特徴とする。
According to the present invention, in order to solve the above-mentioned problems, the inlet pipe portion of the intake manifold is made to project into the manifold, and the surface of the protruding portion facing the intake air outlet side is formed. Drive device (actuator) provided outside the side of the manifold by cutting the butterfly shaft of the butterfly valve so that it cuts into a cut surface that is substantially parallel to the rotary shaft of the butterfly valve and penetrating the rotary shaft of the butterfly valve inside the manifold. It is characterized by being connected to.

【0009】[0009]

【作用】バタフライ弁がマニホールド内に突出された入
口管部に取付けられているので、従来のものに較べ該バ
タフライ弁がマニホールド内部に位置することとなり、
マニホールドの高さが減少し、マニホールドの小形、コ
ンパクト化が実現できる。
Since the butterfly valve is attached to the inlet pipe portion protruding into the manifold, the butterfly valve is located inside the manifold as compared with the conventional one.
The height of the manifold is reduced, and the manifold can be made smaller and more compact.

【0010】一方、マニホールド内における入口管部の
突出部は、吸気後流方向にカット部を形成しているの
で、この部位の通路面積は充分に確保され、吸気の流れ
はスムーズになされることにより吸気抵抗の増加はな
く、また吸気マニホールドにおける吸気の消音効果の低
下もない。
On the other hand, since the projecting portion of the inlet pipe portion inside the manifold forms a cut portion in the intake wake direction, the passage area of this portion is sufficiently secured and the intake air flow can be made smooth. Therefore, the intake resistance is not increased, and the muffling effect of intake air in the intake manifold is not reduced.

【0011】[0011]

【実施例】以下図1〜図2を参照して本発明の実施例に
つき詳細に説明する。但し、この実施例に記載されてい
る構成部品の寸法、材質、形状、その相対的配置等は特
に特定的な記載がないかぎりは、この発明の範囲をそれ
に限定する趣旨ではなく、単なる説明例にすぎない。
Embodiments of the present invention will be described in detail below with reference to FIGS. However, unless otherwise specified, the dimensions, materials, shapes, relative positions, etc. of the components described in this embodiment are not intended to limit the scope of the present invention thereto, but merely illustrative examples. Nothing more.

【0012】図において1は吸気マニホールド、21は
該マニホールドのチャンバ部、22は各シリンダ(この
実施例の場合は4シリンダ)に接続されるブランチ部で
あり、両者はフランジ部23においてボルトにより締着
されている。
In the figure, 1 is an intake manifold, 21 is a chamber portion of the manifold, and 22 is a branch portion connected to each cylinder (4 cylinders in this embodiment). It is worn.

【0013】前記チャンバ部21の長手方向ほぼ中央部
には吸気の入口管部23が設けられている。該入口管部
23には、図2に示すように、吸気マニホールドのチャ
ンバ部21内に突出した突出部23aが形成されてい
る。
An inlet pipe section 23 for intake air is provided at a substantially central portion in the longitudinal direction of the chamber section 21. As shown in FIG. 2, the inlet pipe portion 23 is formed with a protrusion portion 23a that protrudes into the chamber portion 21 of the intake manifold.

【0014】前記入口管部23の突出部23aの内部に
はバタフライ弁4が設けられている。該バタフライ弁4
は、図1に示すように、これの回転支軸24を入口管部
23のボス部に設けられた支持穴23b,23c内に嵌
合することにより、吸気マニホールド1に回転自在に支
持される。
A butterfly valve 4 is provided inside the projecting portion 23a of the inlet pipe portion 23. The butterfly valve 4
1, the rotary support shaft 24 is rotatably supported by the intake manifold 1 by fitting the rotary support shaft 24 into support holes 23b and 23c provided in the boss portion of the inlet pipe portion 23. .

【0015】前記バタフライ弁4の回転支軸24は、図
1に示すように、マニホールド1のチャンバ部21内を
貫通して側壁21eへと延設され、さらに側壁21eを
貫通して、該側壁21eの外部に装着されたアクチュエ
ータ5に連結されている。
As shown in FIG. 1, the rotary support shaft 24 of the butterfly valve 4 extends through the chamber portion 21 of the manifold 1 to a side wall 21e, and further penetrates the side wall 21e. 21e is connected to an actuator 5 mounted on the outside.

【0016】また前記マニホールドの入口管部23の突
出部23aは、図2に示すように、吸気流の下流側即ち
吸気のチャンバ部21からの出口部21f側の部位がバ
タフライ弁の回転支軸24の軸線にほぼ平行な方向の切
断面となるように削り落され、カット部23iを形成し
ている。
As shown in FIG. 2, the protrusion 23a of the inlet pipe portion 23 of the manifold has a rotary shaft of the butterfly valve at a portion on the downstream side of the intake flow, that is, on the outlet portion 21f side from the intake chamber portion 21. The cut portion 23i is cut off so as to form a cut surface in a direction substantially parallel to the axis of 24.

【0017】これにより、チャンバ部21は、入口管部
23の吸気マニホールド長手方向両側には充分大きな容
積21g,21hを備えることとなり、吸気の通路面積
が増加するとともに、消音のための容積も増大する。
As a result, the chamber portion 21 is provided with sufficiently large volumes 21g and 21h on both sides of the inlet pipe portion 23 in the longitudinal direction of the intake manifold, which increases the intake passage area and the volume for silencing. To do.

【0018】前記のように構成された自動車用エンジン
において、吸気は入口管部23から吸気マニホールド1
のチャンバ部21内に入り、ここに一たん貯められ消音
された後、その出口21fを通ってブランチ部22に入
り、吸気弁(図示せず)の開弁とともに該ブランチ部2
2を高速で通過して各シリンダへと導かれる。
In the automobile engine constructed as described above, intake air is introduced from the inlet pipe portion 23 into the intake manifold 1.
After it is stored in the chamber portion 21 of the above and is silenced there, it enters the branch portion 22 through its outlet 21f, and the branch portion 2 is opened together with the opening of the intake valve (not shown).
2 is passed at high speed and is guided to each cylinder.

【0019】前記バタフライ弁4は、図示しない制御装
置で制御されるアクチュエータ5により、回転支軸24
を介して回転駆動され、入口管部3の通路面積を調節す
る。吸気は、該バタフライ弁4により面積を調節された
入口管部3内通路を通過してチャンバ部21内に流入す
るが、この際において入口管部3の出口にカット部23
iが設けられているので、吸気の通路面積は充分に大き
く採れ、吸気はスムーズにチャンバ部21内に流入す
る。
The butterfly valve 4 is rotated by the actuator 5 controlled by a controller (not shown).
It is rotatably driven via the valve to adjust the passage area of the inlet pipe section 3. The intake air passes through the passage in the inlet pipe portion 3 whose area is adjusted by the butterfly valve 4 and flows into the chamber portion 21. At this time, the cut portion 23 is provided at the outlet of the inlet pipe portion 3.
Since i is provided, the passage area of the intake air can be made sufficiently large, and the intake air smoothly flows into the chamber portion 21.

【0020】またチャンバ部21の入口管部3の長手方
向両側に大きな容積21g,21hが形成できるので、
該部の容積により大きな消音効果が得られるとともに、
吸気流の通路面積も拡大される。
Further, since large volumes 21g and 21h can be formed on both sides in the longitudinal direction of the inlet pipe portion 3 of the chamber portion 21,
Due to the volume of the part, a great silencing effect can be obtained,
The passage area of the intake air flow is also expanded.

【0021】[0021]

【発明の効果】以上のように本発明によれば、バタフラ
イ弁を吸気マニホールド内に突出させた入口管部に設け
るとともに、バタフライ弁の回転支軸を、マニホールド
内を貫通させてマニホールド側壁外部に設置した駆動装
置に連結したので、従来のものに較べ吸気マニホールド
の高さが減少し、マニホールドの小形、コンパクト化を
実現することができる。
As described above, according to the present invention, the butterfly valve is provided in the inlet pipe portion projecting into the intake manifold, and the rotary spindle of the butterfly valve is passed through the manifold to the outside of the manifold side wall. Since it is connected to the installed drive device, the height of the intake manifold is reduced as compared with the conventional one, and the manifold can be made smaller and more compact.

【0022】また吸気マニホールド内の入口管部突出部
の吸気の流動方向にカット部を設けたので、吸気の通路
面積は充分に確保され吸気通路の抵抗の増加が抑制され
るとともに、入口管部の両側に大きな容積部が形成され
るので充分な消音効果が得られる。
Further, since the cut portion is provided in the intake pipe projecting portion in the intake manifold in the flow direction of the intake air, the intake passage area is sufficiently secured, the increase in the resistance of the intake passage is suppressed, and the inlet pipe portion is suppressed. Since a large volume is formed on both sides of the, a sufficient silencing effect can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例に係る自動車用エンジンの吸気
装置の構造図。
FIG. 1 is a structural diagram of an intake system for an automobile engine according to an embodiment of the present invention.

【図2】本発明の実施例に係る、図1のII−II線断面
図。
FIG. 2 is a sectional view taken along line II-II of FIG. 1 according to the embodiment of the present invention.

【図3】従来の吸気マニホールドの1例を示す外観構造
図。
FIG. 3 is an external structural view showing an example of a conventional intake manifold.

【図4】本発明の実施例に係る、バタフライ弁の取付部
構造断面図。
FIG. 4 is a sectional view of a structure of a mounting portion of a butterfly valve according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1 吸気マニホールド 4 バタフライ弁 5 アクチュエータ 21 チャンバ部 22 ブランチ部 23 入口管部 23a 突出部 23i カット部 24 回転支軸 1 Intake Manifold 4 Butterfly Valve 5 Actuator 21 Chamber Section 22 Branch Section 23 Inlet Pipe Section 23a Projection Section 23i Cut Section 24 Rotation Spindle

───────────────────────────────────────────────────── フロントページの続き (72)発明者 網本 真一 東京都港区芝五丁目33番8号 三菱自動車 工業株式会社内 (72)発明者 高橋 宗平 神奈川県川崎市中原区大倉町10番地 三菱 自動車エンジニアリング株式会社東京事業 所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Shinichi Amimoto 5-3-33 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation (72) Inventor Sohei Takahashi 10 Okuramachi, Nakahara-ku, Kawasaki-shi, Kanagawa Mitsubishi Automotive Engineering Co., Ltd. Tokyo office

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 吸気マニホールドの吸気入口の通路面積
を制御するバタフライ弁を備えたエンジンの吸気装置に
おいて、前記吸気マニホールドの入口管部をマニホール
ドの内部に突出せしめて該突出部に前記バタフライ弁の
回転支軸を支承する支持部を設けるとともに、前記突出
部の吸気マニホールドの吸気流出口側に向いた部位を、
前記回転支軸の軸線にほぼ平行な方向の切断面となるよ
うに削り落してカット部を形成し、前記回転支軸を前記
吸気マニホールド内を貫通せしめて、該マニホールド側
壁の外部に装着した駆動装置に連結せしめたことを特徴
とするエンジンの吸気装置。
1. An intake system for an engine, comprising: a butterfly valve for controlling a passage area of an intake inlet of an intake manifold; While providing a support portion for supporting the rotation support shaft, a portion of the protruding portion facing the intake air outlet side of the intake manifold,
A drive mounted on the outside of the manifold side wall by scraping off to form a cut portion so as to form a cut surface in a direction substantially parallel to the axis of the rotation spindle. An engine intake device characterized by being connected to the device.
JP5303543A 1993-11-09 1993-11-09 Engine intake system Expired - Fee Related JP2785661B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5303543A JP2785661B2 (en) 1993-11-09 1993-11-09 Engine intake system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5303543A JP2785661B2 (en) 1993-11-09 1993-11-09 Engine intake system

Publications (2)

Publication Number Publication Date
JPH07133746A true JPH07133746A (en) 1995-05-23
JP2785661B2 JP2785661B2 (en) 1998-08-13

Family

ID=17922271

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5303543A Expired - Fee Related JP2785661B2 (en) 1993-11-09 1993-11-09 Engine intake system

Country Status (1)

Country Link
JP (1) JP2785661B2 (en)

Also Published As

Publication number Publication date
JP2785661B2 (en) 1998-08-13

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