JPH0261324A - Mounting structure for engine inlet system air horn - Google Patents

Mounting structure for engine inlet system air horn

Info

Publication number
JPH0261324A
JPH0261324A JP21274988A JP21274988A JPH0261324A JP H0261324 A JPH0261324 A JP H0261324A JP 21274988 A JP21274988 A JP 21274988A JP 21274988 A JP21274988 A JP 21274988A JP H0261324 A JPH0261324 A JP H0261324A
Authority
JP
Japan
Prior art keywords
air horn
surge tank
intake pipe
intake
air
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
JP21274988A
Other languages
Japanese (ja)
Other versions
JP2696352B2 (en
Inventor
Takeo Aoyama
青山 建夫
Yoshihide Takano
好秀 鷹野
Junkichi Amano
天野 順吉
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.)
Yamaha Motor Co Ltd
Original Assignee
Yamaha Motor 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 Yamaha Motor Co Ltd filed Critical Yamaha Motor Co Ltd
Priority to JP63212749A priority Critical patent/JP2696352B2/en
Publication of JPH0261324A publication Critical patent/JPH0261324A/en
Application granted granted Critical
Publication of JP2696352B2 publication Critical patent/JP2696352B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE:To make replacement of an air horn so easily as well as to facilitate a test or the like for engine performance due to a variation in intake pipe length by connecting the air horn free of detachment, in such one provided with the air horn projectingly toward the inside of a surge tank from an intake pipe. CONSTITUTION:An intake air device of an engine is provided with an intake pipe 13 extending to an intake port of a cylinder from a surge tank 6. On the other hand, an air horn 16 is installed projectingly toward the inside of the surge tank 6 from the intake pipe 13. In this case, a connecting port 18 is formed in a rear face of a front surge tank body 9, and a stud bolt 20 is locked to a wall thickness part 19 of the opening edge. On the other hand, an outer flange 21 is formed in an end of the intake pipe 13 corresponding to the connecting port 18. Then, a flange 24 of the air horn 16 is held between the wall thickness part 19 and the outer flange 21, and it is jointly tightened by the stud bolt 20 and a nut 22. With this constitution, the air horn is installed free of detachment, thereby facilitating the replacement.

Description

【発明の詳細な説明】 (産業上の利用分野) この発明は、エンジンの吸気装置に関し、より詳しくは
、エアホーンの取付構造に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an engine intake device, and more particularly to an air horn mounting structure.

(従来の技術) 従来、エンジンの吸気装置には、サージタンクと、この
サージタンクからシリンダの吸気ポートに延びる吸気管
を備え、このサージタンクに対する吸気管の連結部から
サージタンク内に向ってエアホーンを突設したものがあ
る(例えば、実開昭54−158114号公報)、。
(Prior Art) Conventionally, an engine intake system includes a surge tank and an intake pipe extending from the surge tank to the intake port of the cylinder. There are some that have a protruding structure (for example, Japanese Utility Model Application No. 54-158114).

(発明が解決しようとする問題点) ところで1例えば、エンジン性能をテストする場合に、
エアホーンの長さを変化させることにより吸気管長を変
化させて、このテストを行いたい場合がある。
(Problems to be solved by the invention) By the way, 1. For example, when testing engine performance,
It may be desirable to perform this test by varying the intake pipe length by varying the length of the air horn.

このようなテストをする場合、上記従来構成によれば、
エアホーンは吸気管の一部に一体成形されているため、
このエアホーンを他の長さのエアホーンに交換しようと
する際には、これに一体化している吸気管の一部をも交
換する必要が生じる。
When performing such a test, according to the above conventional configuration,
The air horn is integrally molded into a part of the intake pipe, so
When attempting to replace this air horn with an air horn of a different length, it becomes necessary to also replace a portion of the intake pipe that is integrated with the air horn.

しかし、エアホーンの交換のために、このような吸気管
の一部をも交換することは無駄なことである。また、こ
の交換作業時には、サージタンク側に対するエアホーン
の着脱作業に加えて、上記した吸気管の一部を同上吸気
管の他部に着脱する作業も必要となり、この交換作業は
極めて煩雑である。
However, it is wasteful to replace a portion of such an intake pipe in order to replace the air horn. Further, during this replacement work, in addition to the work of attaching and detaching the air horn to the surge tank side, it is also necessary to attach and detach a part of the above-mentioned intake pipe to another part of the same intake pipe, and this replacement work is extremely complicated.

(発明の目的) この発明は、上記のような事情に注目してなされたもの
で、エアホーンの交換が無駄なく行われるようにする・
と共に、このエアホーンの交換作業が容易にできるよう
にすることを目的とする。
(Object of the Invention) This invention was made in view of the above-mentioned circumstances, and aims to enable air horns to be replaced without waste.
It is also an object of the present invention to facilitate the replacement work of this air horn.

(発明の構成) 上記目的を達成するためのこの発明の特徴とするところ
は、サージタンクに対する吸気管の連結部からサージタ
ンク内に向ってエアホーンを突設したエンジンの吸気装
置において、上記連結部に対してエアホーンを着脱自在
とした点にある。
(Structure of the Invention) A feature of the present invention for achieving the above object is that, in an engine intake system in which an air horn is provided protruding from a connection part of an intake pipe to a surge tank toward the inside of the surge tank, the connection part The air horn is detachable from the air horn.

(実施例) 以下、この発明の実施例を図面により説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.

第2図において、1は自動車のエンジンで、このエンジ
ン1は、そのクランク軸(図示せず)が車幅方向に延び
るように車体に設けられており、このクランク軸を挟む
前シリンダ列2と後シリンダ列3とを有したV型6気筒
エンジンとされている。なお、図中矢印Frは自動車の
前方を示している。
In FIG. 2, reference numeral 1 denotes an automobile engine, which is installed in the vehicle body so that its crankshaft (not shown) extends in the width direction of the vehicle, and is connected to a front cylinder row 2 that sandwiches this crankshaft. It is a V-type six-cylinder engine with a rear cylinder row 3. Note that the arrow Fr in the figure indicates the front of the automobile.

上記エンジン1の吸気系は上記エンジンlの左側上方に
配設される第1絞り弁5を有し、この第1絞り弁5には
サージタンク6が連なっている。
The intake system of the engine 1 has a first throttle valve 5 disposed above the left side of the engine 1, and a surge tank 6 is connected to the first throttle valve 5.

このサージタンク6は平面視でエンジンl上面の外縁に
沿って延びている。そして、このサージタンク6は第1
絞り弁5から延びる平面視でY字状の分岐管7を有し、
この分岐管7の前延出端には前サージタンク本体9が連
設され、一方、後延出端には後サージタンク本体10が
連設されている。これら両サージタンク本体9.10は
いずれも車幅方向の右方に延び、これらの各右端同士は
サージタンクコネクタ11で互いに連結されてこれらの
内部は互いに連通している。
This surge tank 6 extends along the outer edge of the upper surface of the engine l in plan view. This surge tank 6 is the first surge tank.
It has a Y-shaped branch pipe 7 in plan view extending from the throttle valve 5,
A front surge tank main body 9 is connected to the front extending end of the branch pipe 7, and a rear surge tank main body 10 is connected to the rear extending end. Both surge tank bodies 9 and 10 extend to the right in the vehicle width direction, and their respective right ends are connected to each other by a surge tank connector 11, so that their interiors are in communication with each other.

上記サージタンク6と各気筒の吸気ポートとは吸気管1
3で連結される。この吸気管13は前サージタンク本体
9と後サージタンク本体10のうちいずれか一方から延
びる短尺管13aと、他方から延びる長尺管13bとを
有し、これら両管13a、13bの各延出端は互いに連
結されて、この連結部13cが上記吸気ボートに接続さ
れている。また、上記各短尺管13a内にはそれぞれ第
2絞り弁15が設けられ、更に、前、後サージタンク本
体9.10に対する短尺管13aの連結部からは同上前
、後サージタンク本体9.10の内部に向って板金製の
エアホーン16が突設されている。
The above surge tank 6 and the intake port of each cylinder are the intake pipe 1
Connected by 3. This intake pipe 13 has a short pipe 13a extending from either the front surge tank main body 9 or the rear surge tank main body 10, and a long pipe 13b extending from the other. The ends are connected to each other, and this connecting part 13c is connected to the intake boat. In addition, a second throttle valve 15 is provided in each of the short tubes 13a, and furthermore, the front and rear surge tank bodies 9.10 are connected to the front and rear surge tank bodies 9.10 from the connecting portions of the short tubes 13a to the front and rear surge tank bodies 9.10. An air horn 16 made of sheet metal is provided to protrude toward the inside of the housing.

そして、図中矢印で示すように、吸気は第1絞り弁5→
サージタンク6→エアホーン16→第2絞り弁15−吸
気管13を順次通って各気筒内に吸入される。なお、上
記第2絞り弁15はエンジン1の回転数もしくは出力に
連動して開閉し、即ち、エンジンlが低速であるときに
は閉じ、高速となったときに開くようになされている。
Then, as shown by the arrow in the figure, the intake air is transferred from the first throttle valve 5 to
The air passes through the surge tank 6 -> air horn 16 -> second throttle valve 15 - intake pipe 13 in this order and is sucked into each cylinder. The second throttle valve 15 opens and closes in conjunction with the rotational speed or output of the engine 1, that is, it closes when the engine 1 is running at low speed and opens when the engine 1 runs at high speed.

上記サージタンク6に対する短尺管13aの連結部と、
この連結部から突設されるエアホーン16についての各
構成は、それぞれ同じであるため、前サージタンク本体
9に対する短尺管13aの連結部についてのみ説明する
A connecting portion of the short pipe 13a to the surge tank 6;
Since the configurations of the air horns 16 protruding from this connecting portion are the same, only the connecting portion of the short tube 13a to the front surge tank body 9 will be described.

第1図において、前サージタンク本体9の後面には円形
の連結口18が形成されている。この連結口18の開口
縁は厚肉部19となっており、この厚肉部19にスタッ
ドポルト20がねじ付けられている。一方、この連結口
18に対応する短尺管13aの端部には外フランジ21
が形成されており、この外フランジ21が上記スタッド
ポルト20と、これにねじ付けられるナツト22とによ
り上記厚肉部19に脱着自在に締結され、これによって
前サージタンク本体9に短尺管13aが連結されている
In FIG. 1, a circular connection port 18 is formed on the rear surface of the front surge tank main body 9. The opening edge of this connection port 18 is a thick walled portion 19, and a stud port 20 is screwed into this thick walled portion 19. On the other hand, an outer flange 21 is provided at the end of the short pipe 13a corresponding to the connecting port 18.
The outer flange 21 is removably fastened to the thick wall portion 19 by the stud port 20 and the nut 22 screwed thereto, whereby the short pipe 13a is attached to the front surge tank main body 9. connected.

前記エアホーン16はフランジ24と、これに一端側が
溶接されるエアホーン本体25とで構成され、フランジ
24は上記厚肉部19と外フランジ21との間に挟まれ
て上記スタッドポルト20やナツト22により共線めさ
れている。また、エアホーン本体25の他端側は上記連
結口18を通って前サージタンク本体9の内部に突出し
ている。
The air horn 16 is composed of a flange 24 and an air horn main body 25 to which one end is welded. They are collinear. The other end of the air horn body 25 projects into the front surge tank body 9 through the connection port 18 .

−F記の場合、エアホーン本体25の外径寸法d1ま連
結口18の内径寸法りよりも小さくなされており、この
ため、エアホーン本体25は連結口18を通して前サー
ジタンク本体9内に出し入れ自在となっている。また、
上記フランジ24の前後面にはそれぞれガスヶ・ント2
6が貼り付けられており、これにより、上記連結部のシ
ールがなされている。
- In the case of item F, the outer diameter d1 of the air horn body 25 is smaller than the inner diameter of the connection port 18, so that the air horn body 25 can be freely inserted into and taken out of the front surge tank body 9 through the connection port 18. It has become. Also,
Gas ports 2 are provided on the front and rear surfaces of the flange 24, respectively.
6 is pasted, thereby sealing the connecting portion.

そうして、エアホーン16を他の長さのエアホーンに交
換しようとして、このエアホーン16を取り外そうとす
る場合には、まず、上記ナツト22を緩めて前サージタ
ンク本体9と短尺管13aとを相対的に引き離す。次に
、この両者間からエアホーン16をガスケット26.2
6と共に抜き出す。そして、他のエアホーンを上記と逆
の手順で取り付ければ、この交換作業が完了する。
When trying to remove the air horn 16 by replacing it with an air horn of a different length, first loosen the nut 22 and disconnect the front surge tank main body 9 and the short pipe 13a. relatively separate. Next, attach the air horn 16 to the gasket 26.2 from between the two.
Take it out along with 6. Then, attach the other air horn in the reverse order to complete this replacement work.

なお、以上は図示の例によるが、エアホーン16はアル
ミダイキャストの他、ゴム製等であってもよい。また、
この実施例では、各ガスケット26をフランジ24に貼
り付けたものを示したが、これは上記交換時の作業性を
向上させるための構成であって、これらガスケット26
はフランジ24とは別個に設けてもよい。
Although the above is based on the illustrated example, the air horn 16 may be made of rubber or the like in addition to aluminum die-casting. Also,
In this embodiment, each gasket 26 is attached to the flange 24, but this is a configuration for improving the workability at the time of replacing the gaskets 26.
may be provided separately from the flange 24.

(発明の効果) この発明によれば、サージタンクに吸気管を連結した連
結部に対し、エアホーンを着脱自在としたため、エアホ
ーンの交換はこのエアホーンの交換のみで足りることと
なる。即ち、従来ではエアホーンが吸気管の一部と一体
成形されており、このため、このエアホーンの交換は吸
気管の一部と共に行う必要があることに比較して、エア
ホーンの交換は無駄なく行われることとなる。
(Effects of the Invention) According to the present invention, since the air horn is detachably attached to the connecting portion where the intake pipe is connected to the surge tank, it is sufficient to replace the air horn only by replacing the air horn. In other words, in the past, the air horn was integrally molded with a part of the intake pipe, and therefore the air horn had to be replaced together with a part of the intake pipe, whereas the air horn can be replaced without waste. That will happen.

また、上記エアホーンの交換時、従来必要としていた吸
気管同士の着脱作業は不要であるため、その分、この作
業は容易となり、作業性の向上が達成されて有益である
Furthermore, when replacing the air horn, there is no need to attach or detach the intake pipes to each other, which was required in the past, so this task becomes easier and the workability is improved, which is beneficial.

【図面の簡単な説明】[Brief explanation of the drawing]

図はこの発明の実施例を示し、第1図は第2図の1−1
線矢視一部所面図、第2図は全体平面図である。 1・・エンジン、6・・サージタンク、13・・吸気管
、13a・・短尺管、16・・エアホーン。 第1図 第2図 F「
The figures show an embodiment of the invention, and Figure 1 is 1-1 in Figure 2.
A partial plan view as viewed from the line arrow, and FIG. 2 is an overall plan view. 1. Engine, 6. Surge tank, 13. Intake pipe, 13a. Short pipe, 16. Air horn. Figure 1 Figure 2 F

Claims (1)

【特許請求の範囲】[Claims] 1、サージタンクに対する吸気管の連結部からサージタ
ンク内に向ってエアホーンを突設したエンジンの吸気装
置において、上記連結部に対してエアホーンを着脱自在
としたエンジンの吸気系エアホーン取付構造。
1. An engine intake system air horn mounting structure in which an air horn is provided protruding from a connecting portion of an intake pipe to a surge tank into the surge tank, and the air horn is detachable from the connecting portion.
JP63212749A 1988-08-26 1988-08-26 Engine intake air horn mounting structure Expired - Fee Related JP2696352B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63212749A JP2696352B2 (en) 1988-08-26 1988-08-26 Engine intake air horn mounting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63212749A JP2696352B2 (en) 1988-08-26 1988-08-26 Engine intake air horn mounting structure

Publications (2)

Publication Number Publication Date
JPH0261324A true JPH0261324A (en) 1990-03-01
JP2696352B2 JP2696352B2 (en) 1998-01-14

Family

ID=16627785

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63212749A Expired - Fee Related JP2696352B2 (en) 1988-08-26 1988-08-26 Engine intake air horn mounting structure

Country Status (1)

Country Link
JP (1) JP2696352B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170041860A (en) * 2014-08-29 2017-04-17 고쿠리츠켄큐카이하츠호진 상교기쥬츠 소고켄큐쇼 Electrolyte sheet and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5681221A (en) * 1979-12-06 1981-07-03 Yamaha Motor Co Ltd Internal combustion engine
JPS5753027U (en) * 1980-09-12 1982-03-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5681221A (en) * 1979-12-06 1981-07-03 Yamaha Motor Co Ltd Internal combustion engine
JPS5753027U (en) * 1980-09-12 1982-03-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170041860A (en) * 2014-08-29 2017-04-17 고쿠리츠켄큐카이하츠호진 상교기쥬츠 소고켄큐쇼 Electrolyte sheet and manufacturing method thereof

Also Published As

Publication number Publication date
JP2696352B2 (en) 1998-01-14

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