JPH066197Y2 - Surge tank for engine with supercharger - Google Patents
Surge tank for engine with superchargerInfo
- Publication number
- JPH066197Y2 JPH066197Y2 JP1988097501U JP9750188U JPH066197Y2 JP H066197 Y2 JPH066197 Y2 JP H066197Y2 JP 1988097501 U JP1988097501 U JP 1988097501U JP 9750188 U JP9750188 U JP 9750188U JP H066197 Y2 JPH066197 Y2 JP H066197Y2
- Authority
- JP
- Japan
- Prior art keywords
- surge tank
- partition plate
- internal space
- supercharger
- carburetor
- 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
Links
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は自動車などの車輌に搭載される過給機付きエン
ジンのサージタンクに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a surge tank for a supercharged engine mounted on a vehicle such as an automobile.
（従来の技術） 過給機付きエンジンの吸気系には、吸気脈動を低減する
ためのサージタンクが過給機と気化器との間に配されて
いる。実開昭62-20127号公報にはこのようなサージタン
クの１例が示されているが、その内部空間は一室となっ
ている。(Prior Art) In the intake system of an engine with a supercharger, a surge tank for reducing intake pulsation is arranged between the supercharger and the carburetor. Japanese Utility Model Laid-Open No. 62-20127 discloses an example of such a surge tank, but its internal space is a single chamber.
（考案が解決しようとする課題） ところで従来のサージタンクにおいては、吸気脈動を十
分に低減させるためにその容量を増大する必要がある。
しかし十分なサージタンク設置スペースをとれない場合
にはそれが不可能であるし、又容量を増大すると加速レ
スポンス性が劣るという問題がある。(Problems to be Solved by the Invention) In the conventional surge tank, it is necessary to increase its capacity in order to sufficiently reduce intake pulsation.
However, there is a problem in that it is impossible if a sufficient space for installing the surge tank cannot be secured, and if the capacity is increased, the acceleration response is deteriorated.
本考案はサージタンクの容量を増大させることなく、吸
気脈動の低減を図り、気化器の空燃比特性を良好にする
ことを目的とする。An object of the present invention is to reduce intake pulsation and improve the air-fuel ratio characteristic of the carburetor without increasing the capacity of the surge tank.
（課題を解決するたの手段） 本考案は前記目的を達成するため、過給機と気化器との
間に、夫々接続管を介して配されたサージタンクにおい
て、サージタンク内空間を連通用開口部を備えた仕切板
で２分し、且つ過給機側に連通する第１内部空間の容量
が気化器側に連通する第２内部空間の容量より大になる
ように前記仕切板を配設し、過給機側の接続管を前記仕
切板と平行方向に、気化器側の接続管を前記仕切板と直
交方向に、夫々サージタンクに接続したことを特徴とす
る。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is designed to connect a surge tank internal space to a surge tank provided between a supercharger and a carburetor through a connecting pipe, respectively. The partition plate is divided into two by a partition plate having an opening, and the partition plate is arranged such that the capacity of the first internal space communicating with the supercharger side is larger than the capacity of the second internal space communicating with the carburetor side. The connection pipe on the supercharger side is connected to the surge tank in the direction parallel to the partition plate, and the connection pipe on the carburetor side is connected to the surge tank in the direction orthogonal to the partition plate.
（作用） 本考案によると、過給機側の接続管からサージタンクに
流入する吸気の脈動波は、容量Ｖ１が大きな第１内部空
間での最初の膨張によって減衰され、次いで第１内部空
間から容量Ｖ２が小さな第２内部空間への連通用開口部
を介しての第２の膨張によって減衰されることによっ
て、効果的な脈動波の減衰が行われる。(Operation) According to the present invention, the pulsating wave of the intake air flowing into the surge tank from the connecting pipe on the supercharger side is attenuated by the first expansion in the first internal space having a large capacity V 1 , and then the first internal space. Is attenuated by the second expansion through the communication opening to the second internal space where the capacitance V 2 is small, thereby effectively dampening the pulsating wave.
そして、気化器側の接続管を介してリターンしてくる脈
動波は、気化器皮の接続管と過給機側の接続管とが互い
に直交するように配されているので、過給機側の接続管
を通してサージタンクに流入する吸気の脈動波との相互
干渉が避けられるため、脈動減衰効果を大きなものとす
ることができる。The pulsating wave returning via the connection pipe on the carburetor side is arranged so that the connection pipe on the carburetor skin and the connection pipe on the supercharger side are orthogonal to each other. Mutual interference with the pulsating wave of the intake air flowing into the surge tank through the connecting pipe is avoided, so that the pulsation damping effect can be enhanced.
上記のように、両接続管を互いに直交するようにサージ
タンクに接続することにより、大きな脈動減衰効果を得
られるが、このような構成のものにおいて、仕切板の存
在、及び第１内部空間の容量Ｖ１を第２内部空間の容量
Ｖ２より大にしたことの作用をより具体的に説明する。As described above, a large pulsation damping effect can be obtained by connecting both connecting pipes to the surge tank so that they are orthogonal to each other. However, in such a structure, the presence of the partition plate and the first internal space illustrating the operation of it has a capacity V 1 to greater than volume V 2 of the second internal space more specifically.
例えば、全容量が1.5、エンジン回転数5000rpmの全負
荷運転時において、仕切板がない場合には最大振幅が23
0mmHgとなっていたものを、V1:V2＝2:1となるように仕
切板を配した場合には最大振幅が200mmHgに低減した。V
1/V2＝αが大きい程吸気脈動低減の効果は大である傾向
があり、α＝１ではその効果がほとんど現れなかった。For example, at full load operation with a total capacity of 1.5 and an engine speed of 5000 rpm, the maximum amplitude is 23 if there is no partition plate.
The maximum amplitude was reduced to 200 mmHg when the partition plate was arranged so that V 1 : V 2 = 2: 1 instead of 0 mmHg. V
The larger 1 / V 2 = α, the greater the effect of reducing intake pulsation, and when α = 1, the effect hardly appeared.
第２図は同様の条件で仕切板がある場合とない場合のエ
ンジン回転数に対する空燃比の変化を比較したグラフを
示すが、高速回転域において両者間に顕著な差異が生ず
ることが分る。仕切板を有する場合には高速回転域（40
00rpm以上）においても空燃比が略一定に保たれる（吸
気脈動の低減による効果）ので、高速回転域のエンジン
出力の向上が図れる。FIG. 2 shows a graph comparing the changes in the air-fuel ratio with the engine speed with and without the partition plate under the same conditions, and it can be seen that there is a significant difference between the two in the high speed rotation range. High speed rotation range (40
The air-fuel ratio is kept substantially constant even at (00 rpm or more) (the effect of reducing the intake pulsation), so that the engine output in the high speed rotation range can be improved.
（実施例） 第１図に示す本考案の実施例は、ターボチャージャのコ
ンプレッサ（過給機）と気化器との間に配された扁平直
方体形状のサージタンク１に関するものである。このサ
ージタンク１の内空間は仕切板２によって第１内部空間
５と第２内部空間７とに２分されている。この仕切板２
の下辺中央には 状の切欠によって連通開口部３が形成され、第１内部空
間５と第２内部空間７とが連通するように構成される。
サージタンク１の側面には接続管４が接続され、この接
続管４を介して過給機からの空気がサージタンク１内の
第１内部空間５に流入する。又サージタンク１の端面に
は接続管６が接続され、この接続管６を介して第２内部
空間７の空気が気化器に送られる。(Embodiment) An embodiment of the present invention shown in FIG. 1 relates to a flat rectangular parallelepiped surge tank 1 arranged between a compressor (supercharger) of a turbocharger and a carburetor. The internal space of the surge tank 1 is divided into a first internal space 5 and a second internal space 7 by a partition plate 2. This partition board 2
At the bottom center The communication opening 3 is formed by the notch, and the first internal space 5 and the second internal space 7 are configured to communicate with each other.
A connection pipe 4 is connected to the side surface of the surge tank 1, and the air from the supercharger flows into the first internal space 5 in the surge tank 1 via the connection pipe 4. A connecting pipe 6 is connected to the end surface of the surge tank 1, and the air in the second internal space 7 is sent to the carburetor through the connecting pipe 6.
前記仕切板２は、第１図に示すように、過給機側の接続
管４に平行で、気化器側の接続管６に直交する方向に配
設されている。又この仕切板２は、第１内部空間５の容
量Ｖ１が第２内部空間７の容量Ｖ２より大になる位置に
配設される必要があり、図示する場合はV1:V2≒2:1とな
っている。As shown in FIG. 1, the partition plate 2 is arranged in a direction parallel to the connecting pipe 4 on the supercharger side and orthogonal to the connecting pipe 6 on the carburetor side. Further, the partition plate 2 needs to be arranged at a position where the capacity V 1 of the first internal space 5 is larger than the capacity V 2 of the second internal space 7, and in the case of the drawing, V 1 : V 2 ≈ It is 2: 1.
第２図は前記のように構成したサージタンクと仕切板を
有しないサージタンクとの性能比較をしたものである
が、本考案の構成によるものは高速回転域においても空
燃比が一定し、出力の向上が図れることが分る。FIG. 2 is a comparison of the performance of the surge tank configured as described above and the surge tank having no partition plate. The configuration of the present invention has a constant air-fuel ratio even in the high speed rotation range and the output. It can be seen that
前記仕切板２の連通開口部３の面積は小さい程吸気脈動
効果が大となるが、小さすぎると吸気絞り損失が増大し
出力が低下するので、前記面積は適宜大きさに定められ
る。又前記連通開口部３の形状は吸気脈動低減効果にほ
とんど影響を及ぼさないので、任意に定めることがで
き、例えば第３図や第４図に示す形状とすることができ
る。The smaller the area of the communication opening 3 of the partition plate 2, the greater the effect of the intake pulsation, but if it is too small, the intake throttle loss increases and the output decreases, so the area is appropriately set. Further, the shape of the communication opening 3 has almost no influence on the effect of reducing the intake pulsation, so that it can be arbitrarily set, for example, the shape shown in FIGS. 3 and 4.
（考案の効果） 本考案によれば、サージタンク容量を増大させることな
く吸気脈動を低減することができ、エンジンの高速回転
域での空燃比を良好にして出力の向上を図ることができ
る。(Effect of the Invention) According to the present invention, the intake pulsation can be reduced without increasing the surge tank capacity, and the output can be improved by improving the air-fuel ratio in the high speed rotation range of the engine.
第１図は本考案の実施例の斜視図、第２図は本考案のも
のと従来例との性能を比較したグラフ、第３図及び第４
図は夫々仕切板の変形例を示す正面図である。 ２……仕切板 ３……連通用開口部 ４……過給機側の接続管 ５……第１内部空間 ６……気化器側の接続管 ７……第２内部空間FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a graph comparing the performances of the present invention and a conventional example, FIGS. 3 and 4
Each of the drawings is a front view showing a modification of the partition plate. 2 ... Partition plate 3 ... Communication opening 4 ... Supercharger-side connection pipe 5 ... First internal space 6 ... Vaporizer-side connection pipe 7 ... Second internal space
Claims (1)
して配されたサージタンクにおいて、サージタンク内空
間を連通用開口部を備えた仕切板で２分し、且つ過給機
側に連通する第１内部空間の容量が気化器側に連通する
第２内部空間の容量より大になるように前記仕切板を配
設し、過給機側の接続管を前記仕切板と平行方向に、気
化器側の接続管を前記仕切板と直交方向に、夫々サージ
タンクに接続したことを特徴とする過給機付きエンジン
のサージタンク。1. A surge tank arranged between a supercharger and a carburetor via connecting pipes, respectively, and divides the internal space of the surge tank into two parts by a partition plate having an opening for communication. The partition plate is arranged so that the capacity of the first internal space communicating with the feeder side is larger than the capacity of the second internal space communicating with the carburetor side, and the connecting pipe on the supercharger side is connected to the partition plate. A surge tank for an engine with a supercharger, characterized in that carburetor-side connecting pipes are connected to surge tanks in a direction parallel to the partition plate and in a direction orthogonal to the partition plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988097501U JPH066197Y2 (en) | 1988-07-23 | 1988-07-23 | Surge tank for engine with supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988097501U JPH066197Y2 (en) | 1988-07-23 | 1988-07-23 | Surge tank for engine with supercharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0219832U JPH0219832U (en) | 1990-02-09 |
| JPH066197Y2 true JPH066197Y2 (en) | 1994-02-16 |
Family
ID=31323017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988097501U Expired - Lifetime JPH066197Y2 (en) | 1988-07-23 | 1988-07-23 | Surge tank for engine with supercharger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH066197Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6962873B2 (en) * | 2018-06-30 | 2021-11-05 | 株式会社クボタ | Engine intake structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912850A (en) * | 1982-07-13 | 1984-01-23 | 旭化成株式会社 | Thermoplastic-resin multilayer structure |
| JPS59119023A (en) * | 1982-12-25 | 1984-07-10 | Daihatsu Motor Co Ltd | Supercharged internal-combustion engine |
-
1988
- 1988-07-23 JP JP1988097501U patent/JPH066197Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0219832U (en) | 1990-02-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH066197Y2 (en) | Surge tank for engine with supercharger | |
| JP2003193919A (en) | Intake device for inclined engine | |
| JP2844241B2 (en) | Multi-cylinder V-type engine intake system | |
| JP2580738Y2 (en) | Structure of intake system of internal combustion engine | |
| JPH0210257Y2 (en) | ||
| JP3229728B2 (en) | Engine intake system | |
| JPH0437254Y2 (en) | ||
| JP2560393Y2 (en) | Multi-cylinder V-type engine intake system | |
| JPS6140908Y2 (en) | ||
| JPS58154826U (en) | Internal combustion engine intake system | |
| JPH0523781Y2 (en) | ||
| JP2516735Y2 (en) | Universal tilt engine | |
| JPH0643460Y2 (en) | Intake device for V-type internal combustion engine | |
| JPS6140909Y2 (en) | ||
| JPH04104134U (en) | Internal combustion engine intake system | |
| JPH0415933Y2 (en) | ||
| JPS6029638Y2 (en) | vertical internal combustion engine | |
| JPH0643459Y2 (en) | Intake device for V-type 8-cylinder engine | |
| JPS6143529B2 (en) | ||
| JPS5829156U (en) | Air cleaner for internal combustion engines | |
| JPH03149317A (en) | Vehicle engine | |
| JPH072980Y2 (en) | Intake device for V-type 8-cylinder engine | |
| JPH0730910Y2 (en) | Intake device for V-type internal combustion engine | |
| JP2877943B2 (en) | Engine intake system | |
| JPH01117921A (en) | Intake device of v-shaped engine |