JPS63208663A - Intake device for engine - Google Patents
Intake device for engineInfo
- Publication number
- JPS63208663A JPS63208663A JP3981087A JP3981087A JPS63208663A JP S63208663 A JPS63208663 A JP S63208663A JP 3981087 A JP3981087 A JP 3981087A JP 3981087 A JP3981087 A JP 3981087A JP S63208663 A JPS63208663 A JP S63208663A
- Authority
- JP
- Japan
- Prior art keywords
- surge tank
- intake
- port
- tank
- 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
Links
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 11
- 239000000057 synthetic resin Substances 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 230000010349 pulsation Effects 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 description 6
- 239000013585 weight reducing agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
- F05C2225/08—Thermoplastics
Landscapes
- Characterised By The Charging Evacuation (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、味気通路に合成樹脂製のサージタンクを備え
たエンジンの吸気装置に関し、特にそのサージタンクの
構造に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an intake system for an engine equipped with a surge tank made of synthetic resin in an air intake passage, and particularly to the structure of the surge tank.
（従来技術及びその問題点）
所謂慣性過給を利用するエンジンの場合、吸気通路にあ
る程度の長さが必共になる為、エンジンル−ム内のレイ
アウト−に、クランクンヤフトから離れた位置に＋■ｒ
ｌ）の重い吸気関係部品が取付けられる傾向がある。こ
の場合、クランクシャツｌ中心としたエンジンのローリ
ングによって吸気通路中のシール而のシール性が９化し
たり／ａ裂が生ずる惧れがあることから、特開昭５７−
１８１９６４号公報開示の如く、吸気通路の一部を合成
樹脂化して軽４１化を図るようにしたものか提案されて
いる。このうち、特に合成樹脂のｌ１ｌｉ４熱性や屯；
−面を考慮してエンジンから最も遠い位置に取付けられ
るサージタンクの合成樹脂化が考えられる。(Prior art and its problems) In the case of an engine that uses so-called inertia supercharging, the intake passage must have a certain length. ＋■r
l) Heavy intake-related parts tend to be installed. In this case, there is a risk that the sealing performance of the seal in the intake passage may become 9/A crack due to the rolling of the engine around the crankshaft.
As disclosed in Japanese Patent No. 181964, it has been proposed that a part of the intake passage be made of synthetic resin to reduce the weight of the engine. Among these, especially the l1li4 thermal properties of synthetic resins;
- Considering this aspect, it is conceivable to use synthetic resin for the surge tank, which is installed at the farthest position from the engine.
しかし乍ら、サージタンクを合成樹脂化する場合、従来
の金属性に比へて剛性、特にスロットルボディから空気
を導入するポート、或いは燃焼室に空気を供給するポー
トのいずれも接合されていない面の剛性が弱い、この為
、吸気脈動により前記剛性の弱いタンク面が振動して吸
気放射１Ｙｔｌ−発生するという問題が生じる。However, when the surge tank is made of synthetic resin, it is more rigid than conventional metal materials, especially the ports that introduce air from the throttle body or the ports that supply air to the combustion chamber. This causes a problem in that the tank surface, which has weak rigidity, vibrates due to intake pulsation and intake air radiation 1Ytl- is generated.
（９，明のＬ１的）
本発明は、上記の如き・バ情に鑑み、軽量化を損なうこ
となく合成樹脂製サージタンクの剛性の弱い面の剛性を
高めて吸気放射音の低減を図ったエンジンの吸気装置の
提供をその目的とする。(9, Ming's L1) In view of the above-mentioned circumstances, the present invention aims to reduce intake radiation noise by increasing the rigidity of the weakly rigid side of the synthetic resin surge tank without sacrificing weight reduction. Its purpose is to provide an intake system for engines.
（発明の構成）
本発明に係るエンジンの吸気装置は、吸気通路に設けた
合成樹脂製のサージタ／りに、スロットルホディから空
気を導入するポートと燃焼室に空気を供給するポートの
いずれもが連結されない面回十を連結する少なくとも一
つの中空リブ部を設け、この中空リブ部によりサージタ
ンクの低剛性部分の剛性を向−トさせることにより１軽
賃化を損なうことなく吸気脈動に伴うサージタンク面の
振動を抑制して吸気放射１キを低減するように構成した
ものである。(Structure of the Invention) In the engine intake system according to the present invention, both the port for introducing air from the throttle body and the port for supplying air to the combustion chamber are connected to the synthetic resin surgitator provided in the intake passage. At least one hollow rib section is provided to connect the unconnected surfaces, and this hollow rib section increases the rigidity of the low-rigidity portion of the surge tank, thereby suppressing surges caused by intake pulsation without sacrificing lightness. This structure is designed to suppress vibrations on the tank surface and reduce intake air radiation.
（発明の実施例）
図示吸気装置は、燃料噴射方式の４気筒エンジンに適用
したものであるり、ｌはシリングヘッド２及びシリンダ
ブロック３等を備えたエンジン本体で、シリンダブミッ
ク３に設けた吸気ポート４に、インテークマニホールド
５、サージタ／り６及びスロー／ トルボディ７等を接
続してＪ字状トに形成された吸気通路８が連通接続して
いる。尚、９はインジェクタ、１０はフユーエルティス
である。(Embodiment of the Invention) The illustrated intake system is applied to a four-cylinder fuel injection type engine, and l is an engine body equipped with a cylinder head 2, a cylinder block 3, etc. The intake port 4 is connected to an intake passage 8 formed in a J-shape by connecting an intake manifold 5, a surgitator/rear 6, a throw/torque body 7, and the like. Note that 9 is an injector, and 10 is a fuel.
前記サージタック６は合成樹脂製であり、各吸気ポート
４・・・に連通する各インテークマニホールド５・・・
に夫々接続されるポート部６Ａ・・・及びスロットルボ
ディ取材用フテンジ６Ｂが一体成形されている。メ、各
ポート部６Ａ・・・間には、タンク上面６Ｃとタンク下
面６Ｄとを連結するリブ部６Ｅ・・・が設けられている
。このリブ部６Ｅ・・・はいずれも、タンクｋ１面６Ｃ
の外方空間とタンク下面６Ｄの外方空間とを連通すべく
中空状になっている。The surge tack 6 is made of synthetic resin, and each intake manifold 5 communicates with each intake port 4.
The port portions 6A, which are respectively connected to the throttle body, and the throttle body coverage flange 6B are integrally molded. A rib portion 6E connecting the tank upper surface 6C and the tank lower surface 6D is provided between each port portion 6A. These rib portions 6E... are all on the tank k1 side 6C.
It has a hollow shape to communicate the outer space of the tank with the outer space of the tank lower surface 6D.
」二記の如く構成すると、サージタンク６内に複数の支
柱が所定間隔で設置されることとなるので、−Ｌド方向
の剛性が向ヒして吸気脈動に伴う夕／り上・下面６Ｃ・
６Ｄの振動が抑制され、サージタンク６からの吸気放射
音の発生が防止され、汀つ上記支柱が中空である為サー
ジタンクの軽量化を損なうことはない。又、各ポート部
６Ａ・・・間にリブ部６Ｅ・・・を設けている為、吸気
抵抗の増大も殆どない。2, since a plurality of struts are installed at predetermined intervals in the surge tank 6, the rigidity in the -L direction is increased, and the upper and lower surfaces 6C due to intake pulsation are improved.・
The vibration of the surge tank 6D is suppressed, the generation of intake radiation noise from the surge tank 6 is prevented, and since the above-mentioned supporting column is hollow, the weight reduction of the surge tank is not impaired. Furthermore, since the rib portions 6E are provided between the port portions 6A, there is almost no increase in intake resistance.
更に１本実施例のような３字状の吸気通路８の場合、サ
ージタンク６とインテークマニホールド５との間の′Ｊ
μ間部に熱気が滞留し易く、この熱気によってインジェ
クタ９内の燃料が気化して熱間再始動性能を悪化させる
傾向があるが、サージタンク６の中空リブ部６Ｅ・・・
でタンク−Ｅ・ド面６Ｃ・６Ｄの外方空間を相１Ｆ、に
連通させたことによって、サージタンク６′Ｆ′方空間
の熱気をＬ方に逃がすことができ、インジェクタ９周囲
温度の低減を図ることが出来る為、熱＋１１１ ＋Ｔｒ
始動性を向上できるという効果がある。Furthermore, in the case of the three-shaped intake passage 8 as in this embodiment, 'J' between the surge tank 6 and the intake manifold 5 is
Hot air tends to stay in the area between μ, and this hot air tends to vaporize the fuel in the injector 9 and deteriorate hot restart performance, but the hollow rib portion 6E of the surge tank 6...
By communicating the outer space of the tank-E and do faces 6C and 6D with the phase 1F, the hot air in the surge tank 6'F' space can be released to the L direction, reducing the ambient temperature of the injector 9. Heat +111 +Tr
This has the effect of improving starting performance.
尚、吸気通路形状及び中空リブ部の数乃至配η茅は本実
施例に限定されるものではなく、中央域に一つの中空リ
ブ部を設ける丈でも吸気放射音は相当低減されるもので
ある。Note that the shape of the intake passage and the number and arrangement of the hollow ribs are not limited to those of this embodiment, and intake radiation noise can be considerably reduced even with a length in which one hollow rib is provided in the central region. .
（発り１の効果）
上記の如き本発明に係るエンジンの吸気装置に依れば、
軽量化の為合Ｊ＆樹脂製のサージタンクを採用した場合
でも軽量化を損なうことなく剛性の弱い面を連結して高
い剛性が得られるので、吸気脈動に伴うサージタンク面
の振動が抑制されて吸気放射音を低減することか出来る
。(Effect of Origin 1) According to the engine intake device according to the present invention as described above,
Even if a composite J& resin surge tank is used to reduce weight, high rigidity can be obtained by connecting weakly rigid surfaces without sacrificing weight reduction, so vibrations on the surge tank surface due to intake pulsation are suppressed. It is possible to reduce intake radiation noise.
第１図は本発明に係る吸気装置の一実施例を示すａ略構
成図、第２図は第１図のＡ矢視図、ｍ３図は第１図の■
−ｍ線断面図である。Fig. 1 is a schematic configuration diagram showing one embodiment of the intake device according to the present invention, Fig. 2 is a view taken in the direction of arrow A in Fig. 1, and Fig. m3 is a schematic diagram of Fig. 1.
-m line sectional view.
Claims (1)
空気を供給するポートとを有した合成樹脂製のサージタ
ンクを備えたエンジンにおいて、前記サージタンクに、
前記両ポートのいずれもが接合されていない面を連結す
る少なくとも一つの中空リブ部を設けたこと、を特徴と
するエンジンの吸気装置。In an engine equipped with a synthetic resin surge tank having a port for introducing air from a throttle body and a port for supplying air to a combustion chamber, the surge tank includes:
An intake device for an engine, characterized in that at least one hollow rib portion is provided that connects surfaces where neither of the ports is joined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3981087A JPH081156B2 (en) | 1987-02-23 | 1987-02-23 | Engine intake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3981087A JPH081156B2 (en) | 1987-02-23 | 1987-02-23 | Engine intake system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63208663A true JPS63208663A (en) | 1988-08-30 |
| JPH081156B2 JPH081156B2 (en) | 1996-01-10 |
Family
ID=12563320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3981087A Expired - Lifetime JPH081156B2 (en) | 1987-02-23 | 1987-02-23 | Engine intake system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081156B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010002323A (en) * | 1999-06-14 | 2001-01-15 | 정몽규 | Surge tank of engine for automobile |
| KR20040049083A (en) * | 2002-12-03 | 2004-06-11 | 현대자동차주식회사 | Intake system of gasoline engine |
-
1987
- 1987-02-23 JP JP3981087A patent/JPH081156B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010002323A (en) * | 1999-06-14 | 2001-01-15 | 정몽규 | Surge tank of engine for automobile |
| KR20040049083A (en) * | 2002-12-03 | 2004-06-11 | 현대자동차주식회사 | Intake system of gasoline engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH081156B2 (en) | 1996-01-10 |
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