JPS6240123Y2 - - Google Patents
Info
- Publication number
- JPS6240123Y2 JPS6240123Y2 JP5598983U JP5598983U JPS6240123Y2 JP S6240123 Y2 JPS6240123 Y2 JP S6240123Y2 JP 5598983 U JP5598983 U JP 5598983U JP 5598983 U JP5598983 U JP 5598983U JP S6240123 Y2 JPS6240123 Y2 JP S6240123Y2
- Authority
- JP
- Japan
- Prior art keywords
- intake
- air
- intake port
- intake passage
- air cleaner
- 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
Links
- 230000001133 acceleration Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Supercharger (AREA)
- Characterised By The Charging Evacuation (AREA)
Description
本考案は、吸入系にターボチヤージヤを有する
自動車のような車両、すなわちターボチヤージヤ
付車両(以下ターボ車という)のサージ音低減装
置に関するものである。
The present invention relates to a surge noise reduction device for a vehicle such as an automobile that has a turbocharger in its intake system, that is, a vehicle with a turbocharger (hereinafter referred to as a turbo vehicle).
ターボ車では、急加速後にアクセルを全開状態
にすると、ターボチヤージヤのブロアのサージン
グによりサージ音(ため息音)が発生するので、
これを低減させることが要望されるが、従来、サ
ージ音の低減装置はなかつた。
本考案は、前述した要望に応えて、構造が簡単
で小型にまとめられるものでありながら、加速時
などにエンジンの出力が低下することがなく、サ
ージ音および通常走行時の吸入系の騒音低下が図
れるターボ車のサージ音低減装置を提供すること
を目的としている。
In a turbocharged car, when the accelerator is fully opened after sudden acceleration, a surging sound (sighing sound) is generated due to the surging of the turbocharger blower.
Although it is desired to reduce this noise, conventionally there has been no device for reducing surge noise. In response to the above-mentioned demands, this invention has a simple and compact structure, does not reduce engine output during acceleration, and reduces surge noise and intake system noise during normal driving. The purpose of the present invention is to provide a surge noise reduction device for turbo cars that can achieve the following.
この目的を達成するために、本考案によるター
ボ車のサージ音低減装置は、吸気口からエアクリ
ーナの吸入口に折返し部を介して至る通路長の長
い吸気通路を形成すると共に、加速時のような吸
入空気量不足時にのみ開く出力弁を介して大気側
と前記吸気通路の折返し部よりエアクリーナ側を
連通させたものである。
In order to achieve this purpose, the surge noise reduction device for a turbo vehicle according to the present invention forms a long intake passage from the intake port to the air cleaner intake via a folded part, and also The atmosphere side communicates with the air cleaner side from the folded portion of the intake passage through an output valve that opens only when the amount of intake air is insufficient.
以下、本考案の一実施例につき図面を参照して
説明する。
図において、符号1は吸気通路であり、この吸
気通路1は、アツパフレーム2に開口する吸気口
3からエアクリーナ4の吸入口5に至るように構
成されている。また吸気通路1は、アツパフレー
ム2とフロントホイールエプロン6の間を2つの
仕切板7,8で仕切り、これらの一方と間隔を有
し、他方に近いアツパフレーム2に固定された仕
切板9を、前記フロントホイールエプロン6とほ
ぼ平行に配置し、前記間隔を折返し部10とする
2つ折り状の通路長が長いものである。なお仕切
板9の折返し部10側の端部11は、ほぼ断面円
形状に成形して通路抵抗が小さくなるようにして
いる。そして吸気通路1は、フロントホイールエ
プロン6に設けた連通孔12およびダクト13を
介してエアクリーナ4吸入口5に連通されてい
る。前記仕切板9には、加速時のような吸入空気
量不足時にのみ開くゴムフラツパなどの出力弁1
4を有する補助吸気口15が開口され、補助吸気
口15は、吸気口3と連通孔12との間にこれら
とほぼ一直線状に配置されて、吸気通路1の連通
孔12に近い部分を出力弁14を介して大気側に
連通させている。エアクリーナ4の出口側は、エ
アフローメータ16、ブーツ17を介してターボ
チヤージヤ18の吸入側に接続され、ターボチヤ
ージヤ18の吐出側は、吸気ダクト19を介して
スロツトルボデイ20に接続されている。なお図
中、符号21はフエンダである。
本実施例は、前述のように構成されているの
で、通常の運転時には、空気が吸気口3から吸気
通路1内に入り、折返し部10で折返され、連通
孔12およびダクト13を介し、普通のこの種の
吸気通路の約2倍の通路長でエアクリーナ4に吸
入され、さらにエアフローメータ16、ブーツ1
7、ターボチヤージヤ18、吸気ダクト19を通
つてスロツトルボデイ20に導かれる。そして吸
気通路1は、通路長が長い上に折返し部10など
で曲げられており、かつ折返し部10で空気を絞
るようにしているので、吸入系の騒音の絶対値が
低下する。また、折返し部で空気を強く絞ると騒
音の低減作用は向上するが吸入空気量が減少し、
エンジンの出力が低下するという問題が生じるの
で、本実施例では、常閉の出力弁14を有する補
助吸気口15を設け、加速時などのアクセル踏込
み時に吸入負圧で出賄弁14が開くことにより、
吸気口3から補助吸気口15を経て折返し部10
を短絡する短いほぼ直線状の経路で、吸気通路1
の連通孔12に近い部分に大気側から空気が吸入
される。このため、加速時の吸入空気量が十分に
確保されて出力の低下が防止される。さらに、ア
クセル戻し時には、吸入空気は不要または少量と
なり、出力弁14がこれ自体の弾性復元力で補助
吸気口15を閉じるので、サージ音の発生防止を
図ることができる。
従つて本実施例の装置は、加速時などにエンジ
ンの出力を低下させることなく、ターボチヤージ
ヤ18のサージ音を低減させることができ、かつ
通常走行時の騒音も低減させることができる。
また本実施例の装置は、従来から自動車に用い
られている既設部品に仕切板7,8,9、および
出力弁14を付加する程度でよく、構造が簡単か
つ小型、軽量であり、フロントホイールエプロン
6内に格納されているために、外観を悪化させる
ことなく、スペースの有効な利用を図ることがで
きて安価であり、さらに構造が簡単であるため故
障が少なく、メンテナンスもほとんど必要がな
い。
なお本考案において、折返し部で吸入空気を必
ずしも絞らなくてもよく、また吸気通路の形成位
置および構成部材も前記実施例に限られることな
く、適宜変更できる。
Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes an intake passage, and this intake passage 1 is configured to extend from an intake port 3 opening in an upper frame 2 to an intake port 5 of an air cleaner 4. In addition, the intake passage 1 is partitioned between the Atsupa frame 2 and the front wheel apron 6 by two partition plates 7 and 8, and a partition plate fixed to the Atsupa frame 2 that is spaced from one of these and close to the other. 9 is disposed substantially parallel to the front wheel apron 6, and has a long bifold path with the above-mentioned interval as a folded portion 10. Note that the end portion 11 of the partition plate 9 on the side of the folded portion 10 is formed into a substantially circular cross-section to reduce passage resistance. The intake passage 1 communicates with the air cleaner 4 intake port 5 via a communication hole 12 provided in the front wheel apron 6 and a duct 13. The partition plate 9 has an output valve 1 such as a rubber flap that opens only when the amount of intake air is insufficient, such as during acceleration.
4 is opened, and the auxiliary intake port 15 is arranged between the intake port 3 and the communication hole 12 in substantially a straight line therebetween, and outputs a portion of the intake passage 1 near the communication hole 12. It is communicated with the atmosphere through a valve 14. The outlet side of the air cleaner 4 is connected to the suction side of a turbocharger 18 via an air flow meter 16 and a boot 17, and the discharge side of the turbocharger 18 is connected to a throttle body 20 via an intake duct 19. In addition, in the figure, the code|symbol 21 is a fender. Since the present embodiment is configured as described above, during normal operation, air enters the intake passage 1 from the intake port 3, is turned back at the folded part 10, and is normally transported through the communication hole 12 and the duct 13. The air is drawn into the air cleaner 4 with a passage length approximately twice that of this type of intake passage, and the air flow meter 16 and boot 1 are
7, the air is guided to the throttle body 20 through the turbocharger 18 and the intake duct 19. In addition, the intake passage 1 has a long passage length and is bent at folded parts 10, etc., and the air is squeezed at the folded parts 10, so that the absolute value of noise in the intake system is reduced. In addition, if the air is strongly squeezed at the folded part, the noise reduction effect will be improved, but the amount of intake air will be reduced.
Since a problem arises in which the output of the engine decreases, in this embodiment, an auxiliary intake port 15 having a normally closed output valve 14 is provided, and the intake valve 14 is opened by negative suction pressure when the accelerator is pressed during acceleration. According to
From the intake port 3 through the auxiliary intake port 15 to the folded part 10
A short, almost straight path short-circuiting the intake passage 1
Air is sucked into the portion near the communication hole 12 from the atmosphere side. Therefore, a sufficient amount of intake air during acceleration is ensured, and a decrease in output is prevented. Furthermore, when the accelerator is released, the amount of intake air is unnecessary or small, and the output valve 14 closes the auxiliary intake port 15 with its own elastic restoring force, so it is possible to prevent the generation of surge noise. Therefore, the device of this embodiment can reduce the surge noise of the turbocharger 18 without reducing the engine output during acceleration, and can also reduce the noise during normal driving. Furthermore, the device of this embodiment only requires adding the partition plates 7, 8, 9 and the output valve 14 to the existing parts conventionally used in automobiles, and has a simple, compact, and lightweight structure. Since it is stored inside the apron 6, it is possible to use space effectively without deteriorating the appearance, and it is inexpensive.Furthermore, the simple structure means that there are few breakdowns and almost no maintenance is required. . In the present invention, the intake air does not necessarily need to be throttled at the folded portion, and the position and constituent members of the intake passage are not limited to those in the embodiments described above, and can be changed as appropriate.
以上説明したように、本考案によるターボ車の
サージ音低減装置は、折返し部を有する通路長の
長い吸気通路でエアクリーナに空気を吸入するよ
うにしたので、エアクリーナの出口側に接続され
ているターボチヤージヤのサージ音および通常走
行時の吸気騒音を低減させることができると共
に、加速時などには出力弁を開き、前記折返し部
を通さずに短い通路長で空気を吸入するようにし
たので、エンジンの出力が低下することもなく、
また構造が簡単で小型にまとめられ、設置スペー
スが小さくてすみ、安価に提供でき、さらに故障
が少なく、メンテナンスもほとんど必要がないと
いう効果がある。
As explained above, the surge noise reduction device for a turbocharged vehicle according to the present invention sucks air into the air cleaner through a long intake passage having a folded part. In addition to reducing engine surge noise and intake noise during normal driving, the output valve is opened during acceleration, etc., and air is inhaled through a short passage length without passing through the folded part, which improves engine performance. No reduction in output,
In addition, the structure is simple and compact, requires only a small installation space, can be provided at low cost, has fewer breakdowns, and requires almost no maintenance.
図は本考案の一実施例を示す一部を断面した概
略平面図である。
1……吸気通路、2……アツパフレーム、3…
…吸気口、4……エアクリーナ、5……吸入口、
6……フロントホイールエプロン、7,8,9…
…仕切板、10……折返し部、11……端部、1
2……連通孔、13……ダクト、14……出力
弁、15……補助吸気口、16……エアフローメ
ータ、17……ブーツ、18……ターボチヤージ
ヤ、19……吸気ダクト、20……スロツトルボ
デイ、21……フエンダ。
The figure is a partially sectional schematic plan view showing an embodiment of the present invention. 1...Intake passage, 2...Atsupa frame, 3...
...Intake port, 4...Air cleaner, 5...Intake port,
6...Front wheel apron, 7, 8, 9...
...Partition plate, 10...Folded part, 11...End part, 1
2...Communication hole, 13...Duct, 14...Output valve, 15...Auxiliary intake port, 16...Air flow meter, 17...Boot, 18...Turbo charger, 19...Intake duct, 20...Throttle body , 21... Fuenda.
Claims (1)
介して至る通路長の長い吸気通路を形成すると共
に、加速時のような吸入空気量不足時にのみ開く
出力弁を介して大気側と前記吸気通路の折返し部
よりエアクリーナ側を連通させたことを特徴とす
るターボチヤージヤ付車両のサージ音低減装置。 A surge noise reduction device for a turbocharged vehicle, characterized in that a long intake passage is formed from the intake port to the intake port of the air cleaner via a turn-around section, and the atmosphere side is connected to the air cleaner side from the turn-around section of the intake passage via an output valve that opens only when the amount of intake air is insufficient, such as during acceleration.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5598983U JPS59160851U (en) | 1983-04-14 | 1983-04-14 | Surge noise reduction device for vehicles with turbo gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5598983U JPS59160851U (en) | 1983-04-14 | 1983-04-14 | Surge noise reduction device for vehicles with turbo gear |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59160851U JPS59160851U (en) | 1984-10-27 |
JPS6240123Y2 true JPS6240123Y2 (en) | 1987-10-14 |
Family
ID=30186313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5598983U Granted JPS59160851U (en) | 1983-04-14 | 1983-04-14 | Surge noise reduction device for vehicles with turbo gear |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59160851U (en) |
-
1983
- 1983-04-14 JP JP5598983U patent/JPS59160851U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS59160851U (en) | 1984-10-27 |
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