JPH0355650B2 - - Google Patents
Info
- Publication number
- JPH0355650B2 JPH0355650B2 JP62229289A JP22928987A JPH0355650B2 JP H0355650 B2 JPH0355650 B2 JP H0355650B2 JP 62229289 A JP62229289 A JP 62229289A JP 22928987 A JP22928987 A JP 22928987A JP H0355650 B2 JPH0355650 B2 JP H0355650B2
- Authority
- JP
- Japan
- Prior art keywords
- intake
- engine
- carburetor
- passages
- connecting member
- 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 - Lifetime
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- Characterised By The Charging Evacuation (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は１つの燃焼室を有する１気筒に対し
て２つの吸気バルブへ連なるそれぞれ独立した吸
気通路と２つの気化器からの吸気通路とそれら通
路を連結する連結部材とからなる吸気装置に関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a cylinder having one combustion chamber, each having its own independent intake passages connected to two intake valves, intake passages from two carburetors, and the like. The present invention relates to an intake device including a connecting member that connects passages.
［従来の技術］
従来、１つの燃焼室を有する１気筒に対して２
つの吸気バルブを備えることによつてエンジンの
出力性能を向上させるようにしたものが普通にあ
る。このものにおいては、各吸気バルブへ連なる
それぞれ独立した吸気通路と２つの気化器からの
吸気通路とからなる吸気装置を備えている。例え
ば特開昭55−51920号公報を参照されたい。[Prior art] Conventionally, two combustion chambers were used for one cylinder with one combustion chamber.
It is common to have two intake valves to improve engine output performance. This device includes an intake system consisting of independent intake passages connected to each intake valve and intake passages from two carburetors. For example, please refer to Japanese Patent Application Laid-Open No. 55-51920.
また、複数の気化器からのそれぞれの吸気通路
をエンジン本体に接続する連結部材が、ゴム材の
一体成形のものからなり、エンジン側及び気化器
側が一連の連結部を形成し、該気化器側の連結部
を一括してバンド締め付けるものも例えば実開昭
54−18513号公報に開示されている。 Further, the connecting member connecting each intake passage from the plurality of carburetors to the engine body is made of an integrally molded rubber material, and the engine side and the carburetor side form a series of connecting parts, and the carburetor side For example, there is one that tightens the band all at once.
It is disclosed in Publication No. 54-18513.
そして、これらのものは複数の気化器からの各
吸気通路はそれぞれ略平行に形成されている。 In these devices, the intake passages from the plurality of vaporizers are formed substantially parallel to each other.
また、副燃焼室を有するエンジンにおいて、そ
れぞれの燃焼室に吸気を供給するにあたり、各気
化器からの吸気通路を略ハ字型に配置したものも
例えば実開昭51−144613号公報において公知であ
る。 Furthermore, in an engine having a sub-combustion chamber, an engine in which the intake passages from each carburetor are arranged in a substantially V-shape for supplying intake air to each combustion chamber is also known, for example, in Japanese Utility Model Application Publication No. 144613/1983. be.
［発明が解決しようとする課題］
ところで、１つの燃焼室を有する１気筒に対し
て２つの吸気バルブを設けた場合、両バルブ間の
間隔は狭くならざるを得ないものであるのに対し
て両気化器の間隔はその構成上からかなり広くな
らざるを得ないものであるので、該気化器からバ
ルブへの２つの吸気通路は、エンジンの一部で急
激なカーブで接近させざるを得ない。そのため、
各吸気通路内を通過する吸気に大きな抵抗を与え
ると共にエンジン外面に形成する空気通路用の孔
の間隔が大きくなつて隣接する気筒用の吸気通路
の形成に困難を来すという問題点があつた。[Problems to be Solved by the Invention] By the way, when two intake valves are provided for one cylinder having one combustion chamber, the interval between the two valves must become narrow. Because the distance between the two carburetors has to be quite wide due to their configuration, the two intake passages from the carburetors to the valves have to be brought close together at a part of the engine with a sharp curve. . Therefore,
There were problems in that it provided a large resistance to the intake air passing through each intake passage, and the gaps between the air passage holes formed on the outer surface of the engine became large, making it difficult to form intake passages for adjacent cylinders. .
また、エンジンと気化器との間には格別の断熱
部材が存在しないのでエンジンからの熱が気化器
に伝達される虞れもあつた。 Furthermore, since there is no special heat insulating member between the engine and the carburetor, there is a risk that heat from the engine will be transferred to the carburetor.
この発明は、従来な技術の有するこのような問
題点に鑑みてなされたものであり、その目的とす
るところは、エンジンヘの吸気の供給をスムース
に行なわせてエンジン出力の向上が図れ、その
際、気化器に対するエンジンからの熱影響の少な
いバンドによる締め付け作業の容易な優れた連結
手段を有する吸気装置を提供するものである。 This invention was made in view of the above-mentioned problems with the conventional technology, and its purpose is to improve the engine output by smoothly supplying intake air to the engine. At the same time, the present invention provides an intake device having an excellent connection means that allows easy tightening work with a band that has little heat influence from the engine on the carburetor.
［課題を解決するための手段］
上記目的を達成するため、この発明の吸気装置
は、
１つの燃焼室を有する１気筒に対して２つの吸
気バルブへ連なるそれぞれ独立した吸気通路と２
つの気化器からの吸気通路とそれら通路を連結す
る連結部材とからなる吸気装置において、前記連
結部材が前記気化器側の端部からエンジンに向つ
て間隔が狭まるように略ハ字型に形成された両吸
気通路と同じ軸線にある通路を有するゴム材の一
体成形のものからなり、該連結部材のエンジン側
が一連の連結部を形成し気化器側がそれぞれ分岐
した連結部を形成し、該分岐した連結部並びにエ
アクリーナと気化器との連結部の、バンド締め付
け部外表面をエンジン取付面と直交するようにし
たことを特徴とする、
ものである。[Means for Solving the Problems] In order to achieve the above object, the intake system of the present invention has two independent intake passages connected to two intake valves for one cylinder having one combustion chamber, and two intake passages connected to two intake valves.
In an intake device comprising intake passages from two carburetors and a connecting member connecting these passages, the connecting member is formed in a substantially V-shape so that the interval narrows from an end on the carburetor side toward the engine. The engine side of the connecting member forms a series of connecting parts, the carburetor side forms a branched connecting part, and the connecting member forms a series of connecting parts, and the connecting member forms a series of connecting parts. The outer surface of the band tightening part of the connection part and the connection part between the air cleaner and the carburetor is made perpendicular to the engine mounting surface.
［作 用］
各気化器からの吸気は連結部材に形成された通
路を経て吸気バルブへ連なる吸気通路から各吸気
バルブに供給されて燃焼に供せられる。[Function] Intake air from each carburetor is supplied to each intake valve from an intake passage connected to the intake valve via a passage formed in the connecting member, and is subjected to combustion.
この吸気装置において、連結部材が気化器側の
端部からエンジンに向つて間隔が狭まるように略
ハ字型に形成された両吸気通路と同じ軸線にある
通路を有するゴム材の一体成形のものからなり、
該連結部材のエンジン側が一連の連結部を形成し
気化器側がそれぞれ分岐した連結部を形成してい
るものからなるので、吸気通路内における急激な
カーブは全くなく且つエンジン外面に形成する吸
気通路用の孔の間隔は可及的に狭くなり連結部材
の連結強度も高くなり、エンジンからの熱は連結
部材のゴム材によつてその伝達が防止され、気化
器の連結も簡単にできる。また、前記分岐した連
結部並びにエアクリーナと気化器との連結部の、
バンド締め付け部外表面をエンジン取付面と直交
するようにしたので、バンドの締め付け作業が同
一方向で真横から簡単、確実にできる。 In this intake device, the connecting member is integrally molded of a rubber material and has a passage on the same axis as both intake passages formed in a substantially V-shape so that the distance narrows from the end on the carburetor side toward the engine. Consisting of
The engine side of the connecting member forms a series of connecting parts, and the carburetor side forms a series of connecting parts, so there is no sharp curve in the intake passage, and there is no sharp curve in the intake passage formed on the outer surface of the engine. The interval between the holes is as narrow as possible, the connection strength of the connection member is increased, heat from the engine is prevented from being transmitted by the rubber material of the connection member, and the carburetor can be easily connected. Further, the branched connection portion and the connection portion between the air cleaner and the carburetor,
Since the outer surface of the band tightening part is made perpendicular to the engine mounting surface, the band tightening work can be easily and reliably performed from the side in the same direction.
［実施例］
この発明の１実施例を以下図面を参照して説明
する。[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.
図はこの発明の実施例の断面構造を示すもので
あり、図中Ａはエンジン、Ｂは二連気化器であ
る。 The figure shows a cross-sectional structure of an embodiment of the present invention, where A is an engine and B is a dual carburetor.
前記エンジンＡは１つの燃焼室に夫々２つの吸
気バルブ１と排気バルブ２を備えると共に、前記
吸気バルブ１へ連なる独立した吸気通路３が形成
されている。 The engine A includes two intake valves 1 and two exhaust valves 2 in one combustion chamber, and an independent intake passage 3 connected to the intake valve 1.
この２つの吸気通路３は吸気バルブ１からエン
ジンＡ外面に向つてそれらの間隔が広がるように
形成され、エンジンＡ外面に開口する孔３ａに連
結部材４が取付けられている。 These two intake passages 3 are formed so that the distance between them increases from the intake valve 1 toward the outer surface of the engine A, and a connecting member 4 is attached to a hole 3a opening to the outer surface of the engine A.
連結部材４はゴム材でもつて一体に成形され、
二連気化器Ｂの各気化器ｂを連結するための分岐
した連結部４ａが設けられると共に、その連結部
４ａ内に吸気通路３および気化器ｂからの吸気通
路b1に連なる通路４ｂが形成されている。 The connecting member 4 is integrally molded from a rubber material,
A branched connecting portion 4a for connecting each carburetor b of the dual carburetor B is provided, and a passage 4b that connects to the intake passage 3 and the intake passage b1 from the carburetor b is formed within the connecting portion 4a. has been done.
前記分岐した連結部４ａは夫々エンジンＡ外面
と直交状に気化器ｂ側へ突出している。 The branched connecting portions 4a each protrude perpendicularly to the outer surface of the engine A toward the carburetor b.
また、通路４ｂは連結部４ａの気化器ｂ側の端
部からエンジンＡに向つて間隔が狭まるようにハ
字状に形成され、前記両吸気通路３，b1と軸線を
同じくしている。 Further, the passage 4b is formed in a V-shape such that the distance from the end of the connecting portion 4a on the side of the carburetor b becomes narrower toward the engine A, and has the same axis as both the intake passages 3 and b1 .
従つて、各気化器ｂから各吸気バルブ１への吸
気通路は直線的になり、且つ２つの吸気通路は気
化器ｂ側が広く吸気バルブ１へ向つて狭くなるよ
うに互いに収れんされ、エンジンＡ外面に開口す
る孔３ａの間隔は可及的に狭くなる。 Therefore, the intake passages from each carburetor b to each intake valve 1 are linear, and the two intake passages are converged with each other so that the side of the carburetor b is wide and narrows toward the intake valve 1, and the outer surface of the engine A is The distance between the holes 3a that are opened to each other is as narrow as possible.
そして、連結部材は４はゴム材で一体に成形さ
れたものであるから、前記両通路が狭い間隔に形
成されても何ら問題となるところがない。 Since the connecting member 4 is integrally molded from a rubber material, there is no problem even if the two passages are formed at a narrow interval.
一方、二連気化器Ｂは２つの気化器ｂを一体的
に連結してなり、それらの連結部B1に設けた１
つのフロート室を共用して２つの気化器ｂが夫々
連動して同時に作動するようになつている。 On the other hand, the double carburetor B is formed by integrally connecting two carburetors B, and the 1
The two carburetors b share one float chamber and operate simultaneously in conjunction with each other.
前記気化器ｂの各吸気通路b1は一端が前記エン
ジンＡの吸気通路３に接続され他端はエアクリー
ナ（図示せず）に接続されるようになつている。 One end of each intake passage b1 of the carburetor b is connected to the intake passage 3 of the engine A, and the other end is connected to an air cleaner (not shown).
この気化器ｂの各吸気通路b1は前述の如く互い
にエンジンＡ側へ向つて近付くように略ハ字型と
され、エンジンＡの吸気通路３とその軸線を同じ
くしてこれに滑らかに連続するようになつてい
る。 As mentioned above, the intake passages b1 of this carburetor b are approximately V-shaped so that they approach each other toward the engine A side, and are smoothly continuous with the intake passage 3 of the engine A, with the same axis line. It's becoming like that.
また、吸気通路b1のエンジンＡ側端部、すなわ
ちエンジンＡとの連結部b2は連結部材４の連結部
４ａと同様にエンジンＡ外面と直交状に形成さ
れ、該連結部４ａに差し込んでバンド５により締
め付け固定される。 Further, the end portion of the intake passage b 1 on the engine A side, that is, the connecting portion b 2 with the engine A is formed perpendicularly to the outer surface of the engine A, similar to the connecting portion 4a of the connecting member 4, and is inserted into the connecting portion 4a. It is tightened and fixed by a band 5.
一方、エアクリーナ側の吸気通路b1端部、すな
わちエアクリーナとの連結部b3も連結部材４の連
結部４ａと同様にエンジンＡ外面と直交に形成さ
れ、エアクリーナに連決されるゴム製の連結管６
に差し込んでバンドにより締め付け固定される。 On the other hand, the end of the intake passage b1 on the air cleaner side, that is, the connection part b3 with the air cleaner, is also formed perpendicular to the outer surface of the engine A, similar to the connection part 4a of the connection member 4, and is a rubber connection connected to the air cleaner. tube 6
Insert it into the holder and tighten it with the band.
なお、図中７は各気化器ｂの吸気通路b1におい
てそのエンジンＡ側の途中に設けられたスロツト
ル弁である。 Note that 7 in the figure is a throttle valve provided midway on the engine A side in the intake passage b1 of each carburetor b.
［発明の効果］
この発明では、連結部材が気化器側の端部から
エンジンに向つて間隔が狭まるように略ハ字型に
形成された両吸気通路と同じ軸線にある通路を有
するゴム材の一体成形のものからなり、該連結部
材のエンジン側が一連の連結部を形成し気化器側
がそれぞれ分岐した連結部を形成しているものか
らなるので、吸気通路内における急激なカーブは
全くなく、従つてエンジンへ供給される吸気は格
別の抵抗を受けることがないからエンジン出力の
向上が図れるものである。[Effects of the Invention] In the present invention, the connecting member is made of a rubber material having a passage on the same axis as both intake passages formed in a substantially V-shape so that the interval narrows from the end on the carburetor side toward the engine. The connecting member is integrally molded, and the engine side of the connecting member forms a series of connecting parts, and the carburetor side forms a series of connecting parts, so there are no sharp curves in the intake passage, and there are no sharp curves in the intake passage. Since the intake air supplied to the engine is not subjected to any particular resistance, the engine output can be improved.
また、エンジン外面に形成する吸気通路用の孔
の間隔は、前記連結部材の大きさによつて制限さ
れるものであつて、仮に該連結部材が吸気通路毎
に別部材から構成されるとするとそれぞれの連結
部材をエンジンに固定するためのスペースを必要
とすることからエンジン外面側の両連結部材の吸
気通路は離れた位置にならざるを得なく、両吸気
通路をエンジンに向つて互いに収れんさせたとし
ても、それには限度がありそれだけエンジン外面
に形成する吸気通路用の孔の間隔も大きくならざ
るを得ないが、この発明では該連結部材のエンジ
ン側が一体成形の一連のものであることと両吸気
通路が互いに収れんされたことから、これが別構
成のものに比して両吸気通路を可及的に狭くする
ことができる。その結果、エンジン外面に形成す
る吸気通路用の孔の間隔も隣接する気筒用の吸気
通路を考慮に入れないで済む程度に狭くすること
ができると共に該連結部材が、ゴム材で優れた断
熱効果を有しながらもその幅方向の距離が短く面
積も小さくなるので、連結強度が高く使用に十分
耐えることができ、気化器への熱影響も少ない。
また、略ハ字型の通路を有する分岐した連結部に
気化器側が連結され、しかも該分岐した連結部並
びにエアクリーナと気化器との連結部の、バンド
締め付け部外表面をエンジン取付面と直交するよ
うにしたので、連結スペースの大きいところでバ
ンドの締め付け作業が同一方向で真横からできる
ことから、その作業は簡単、確実となる。 Furthermore, the interval between holes for intake passages formed on the outer surface of the engine is limited by the size of the connecting member, and if the connecting member is composed of a separate member for each intake passage. Since space is required to fix each connecting member to the engine, the intake passages of both connecting members on the outside of the engine have to be located far apart, and the two intake passages are forced to converge toward the engine. However, there is a limit to this, and the interval between the holes for the intake passage formed on the outer surface of the engine must be increased accordingly.However, in this invention, the engine side of the connecting member is a series of integrally molded parts. Since both the intake passages are converged with each other, it is possible to make both the intake passages as narrow as possible compared to those having different configurations. As a result, the spacing between the holes for the intake passages formed on the outer surface of the engine can be narrowed to the extent that there is no need to take into account the intake passages for adjacent cylinders, and the connecting member is made of a rubber material that has an excellent heat insulating effect. However, since the distance in the width direction is short and the area is small, the connection strength is high and it can withstand use sufficiently, and there is little thermal influence on the vaporizer.
Further, the carburetor side is connected to a branched connection portion having a substantially V-shaped passage, and the outer surface of the band tightening portion of the branched connection portion and the connection portion between the air cleaner and the carburetor is perpendicular to the engine mounting surface. As a result, the work of tightening the band can be done from the side in the same direction in a place where the connection space is large, making the work easy and reliable.
図面はこの発明に係る吸気装置の一実施例の一
部切欠平面図を示す。
Ａ……エンジン、ｂ……気化器、１……吸気バ
ルブ、３……吸気通路、４……連結部材、４ｂ…
…通路、b1……吸気通路、b2，b3……連結部。
The drawing shows a partially cutaway plan view of an embodiment of the intake device according to the present invention. A...engine, b...carburizer, 1...intake valve, 3...intake passage, 4...connecting member, 4b...
...passage, b 1 ...intake passage, b 2 , b 3 ...connection section.
Claims (1)
吸気バルブへ連なるそれぞれ独立した吸気通路と
２つの気化器からの吸気通路とそれら通路を連結
する連結部材とからなる吸気装置において、前記
連結部材が、前記気化器側の端部からエンジンに
向つて間隔が狭まるように略ハ字型に形成された
両吸気通路と同じ軸線にある通路を有するゴム材
の一体成形のものからなり、該連結部材のエンジ
ン側が一連の連結部を形成し気化器側がそれぞれ
分岐した連結部を形成し、該分岐した連結部並び
にエアクリーナと気化器との連結部の、バンド締
め付け部外表面をエンジン取付面と直交するよう
にしたことを特徴とする吸気装置。1. In an intake system that includes independent intake passages connected to two intake valves for one cylinder having one combustion chamber, intake passages from two carburetors, and a connecting member connecting these passages, the connecting member is made of an integrally molded rubber material having a passage on the same axis as both intake passages formed in a substantially V-shape so that the interval narrows from the end on the carburetor side toward the engine; The engine side of the member forms a series of connecting parts, and the carburetor side forms branched connecting parts, and the outer surface of the band tightening part of the branched connecting parts and the connecting part between the air cleaner and the carburetor is perpendicular to the engine mounting surface. An intake device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22928987A JPS6380014A (en) | 1987-09-12 | 1987-09-12 | Suction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22928987A JPS6380014A (en) | 1987-09-12 | 1987-09-12 | Suction system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8941980A Division JPS5716254A (en) | 1980-06-30 | 1980-06-30 | Carburetor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6380014A JPS6380014A (en) | 1988-04-11 |
| JPH0355650B2 true JPH0355650B2 (en) | 1991-08-26 |
Family
ID=16889790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22928987A Granted JPS6380014A (en) | 1987-09-12 | 1987-09-12 | Suction system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6380014A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100770305B1 (en) * | 2001-09-28 | 2007-10-25 | 주식회사 포스코 | Outlet guide uneven wear prevention device of wire rod pinch roll equipment |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51144613U (en) * | 1975-05-15 | 1976-11-20 | ||
| JPS5741403Y2 (en) * | 1977-07-11 | 1982-09-10 | ||
| JPS595769B2 (en) * | 1978-10-06 | 1984-02-07 | 本田技研工業株式会社 | High output engine |
-
1987
- 1987-09-12 JP JP22928987A patent/JPS6380014A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6380014A (en) | 1988-04-11 |
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