JPS6212863Y2 - - Google Patents
Info
- Publication number
- JPS6212863Y2 JPS6212863Y2 JP16165682U JP16165682U JPS6212863Y2 JP S6212863 Y2 JPS6212863 Y2 JP S6212863Y2 JP 16165682 U JP16165682 U JP 16165682U JP 16165682 U JP16165682 U JP 16165682U JP S6212863 Y2 JPS6212863 Y2 JP S6212863Y2
- Authority
- JP
- Japan
- Prior art keywords
- intake
- intake manifold
- box
- air
- intake pipe
- 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
Landscapes
- Characterised By The Charging Evacuation (AREA)
Description
【考案の詳細な説明】 本考案は箱型吸気マニホールドに関する。[Detailed explanation of the idea] The present invention relates to a box-type intake manifold.
吸気マニホールドには各吸気ポートに対応した
分岐部を有するものがあるが、分岐部のない箱型
のものも使用される。箱型のものは形状が簡単で
コストは低い。 Some intake manifolds have branch parts corresponding to each intake port, but box-shaped ones without branch parts are also used. Box-shaped ones have a simple shape and are low in cost.
従来の箱型マニホールドについて、第１図を参
照して説明すると、シリンダヘツド１には複数の
吸気ポート２が形成され、各吸気ポート２の開口
部２ａを覆うようにして箱型の吸気マニホールド
３が固着され、吸気マニホールド３には吸気パイ
プ４が連通される。吸気パイプ４はエンジンを車
両に搭載するスペースから実線で示すように曲管
状のものが多く使用され、又破線４′で示すよう
な直管状のものもある。吸気パイプ４は第１図に
示すように吸気マニホールド３との結合部付近４
ａは一定の断面で形成されている。 A conventional box-shaped manifold will be described with reference to FIG. 1. A plurality of intake ports 2 are formed in a cylinder head 1, and a box-shaped intake manifold 3 is formed to cover the opening 2a of each intake port 2. is fixed, and an intake pipe 4 is communicated with the intake manifold 3. The intake pipe 4 is often curved, as shown by the solid line, to accommodate the space in which the engine is mounted on the vehicle, and there is also a straight pipe, as shown by the broken line 4'. The intake pipe 4 is located near the joint with the intake manifold 3 as shown in FIG.
a is formed with a constant cross section.
今矢印ＡあるいはA′で示すように空気が吸気
パイプ４，４′に入ると、空気は結合部付近４ａ
で方向性がつけられ、その方向性が強いので矢印
Ｂで示すようにシリンダヘツド１の表面１ａに衝
突した後、矢印Ｃで示すように各ポート２に導入
されるため、各気筒間で空気流の抵抗等の条件が
異つて、空気流の乱れ、空気量等のバラツキが大
きくなつていた。 When air enters the intake pipes 4, 4' as shown by arrow A or A', the air flows near the joint 4a.
Since the directionality is strong, the air collides with the surface 1a of the cylinder head 1 as shown by arrow B, and is then introduced into each port 2 as shown by arrow C, so that air is distributed between each cylinder. Conditions such as flow resistance were different, leading to turbulence in the air flow and large variations in the amount of air.
本考案の目的は、上記欠点を克服し、吸気マニ
ホールドをよりコンパクトにして、吸気マニホー
ルドと吸気パイプとの結合部付近に、吸気パイプ
より断面の大きな部分を設け吸気マニホールドに
流入する空気の方向性を減少させ、各吸気ポート
へ空気流の乱れおよび空気量の気筒間のバラツキ
を少なくするように改善した箱型吸気マニホール
ドを提供するにある。 The purpose of the present invention is to overcome the above drawbacks, make the intake manifold more compact, and provide a section with a larger cross section than the intake pipe near the joint between the intake manifold and the intake pipe to improve the direction of air flowing into the intake manifold. To provide a box-type intake manifold which is improved so as to reduce the turbulence of air flow to each intake port and the variation in air amount between cylinders.
つぎに、本考案を実施例により図面を参照して
説明する。 Next, the present invention will be described by way of examples with reference to the drawings.
第２図は本考案の実施例の断面図で、この図に
おいて、シリンダヘツド１１には複数の吸気ポー
ト１２が形成され、各吸気ポート１２の開口部１
２ａを覆うようによりコンパクトにした箱型吸気
マニホールド１３が固着され、吸気マニホールド
１３には吸気パイプ１４が連通される。吸気パイ
プ１４は実線で示すように曲管状のものがあり配
線１４′で示す直管状のものもある。 FIG. 2 is a sectional view of an embodiment of the present invention, in which a plurality of intake ports 12 are formed in the cylinder head 11, and an opening 1 of each intake port 12 is formed in the cylinder head 11.
A more compact box-shaped intake manifold 13 is fixed to cover 2a, and an intake pipe 14 is communicated with the intake manifold 13. The intake pipe 14 may be curved as shown by the solid line, or straight as shown by the wiring 14'.
本考案においては、吸気マニホールド１３と吸
気パイプ１４との結合部付近１４ａは、吸気パイ
プ１４の断面より大きく形成され、すなわち、結
合部付近１４ａには大容積部１５が形成されてい
る。特に吸気マニホールド１３には角部１３ａが
設けられ吸気パイプ１４には直線部１４ｂが設け
られている。 In the present invention, a portion 14a near the joint between the intake manifold 13 and the intake pipe 14 is formed to be larger than the cross section of the intake pipe 14, that is, a large volume portion 15 is formed near the joint 14a. In particular, the intake manifold 13 is provided with a corner portion 13a, and the intake pipe 14 is provided with a straight portion 14b.
今空気が吸気パイプ１４より矢印×で示すよう
に流入されると大容積部１５において流入空気は
矢印Y1，Y2で示すように拡がつて、その方向性
は大巾に緩和され各吸気ポート１２へ最短距離で
流れることができる。そして直線部１４ｂは流入
空気のＸの強い方向性を緩和し又角部１３は大容
積部１５で拡げられた流れを調節しY1とY2が同
等になるように作用する。そのため、従来の箱型
吸気ポートで発生したような不具合は解消され、
空気流の乱、空気量の各気筒間のバラツキが少な
くなるように改善される。従つて形状が簡単でコ
ンパクトに出来且コストが低く、又性能的にも充
分なものが出来る。 Now, when air flows in from the intake pipe 14 as shown by the arrow X, the incoming air spreads out in the large volume section 15 as shown by the arrows Y 1 and Y 2 , and its directionality is greatly relaxed and each intake air It can flow to port 12 in the shortest distance. The straight portion 14b acts to alleviate the strong directionality of the X direction of the incoming air, and the corner portion 13 adjusts the flow expanded in the large volume portion 15 so that Y 1 and Y 2 become equal. Therefore, the problems that occur with conventional box-shaped intake ports are eliminated.
The turbulence in airflow and the variation in air amount between cylinders are reduced. Therefore, the shape is simple and compact, the cost is low, and the performance is sufficient.
第１図は従来の箱型吸気マニホールドの断面
図、第２図Ａ，Ｂは本考案の断面図である。
１１……シリンダヘツド、１２……吸気ポー
ト、１３……吸気マニホールド、１４……吸気パ
イプ、１５……大容積部。
FIG. 1 is a sectional view of a conventional box-type intake manifold, and FIGS. 2A and 2B are sectional views of the present invention. 11... Cylinder head, 12... Intake port, 13... Intake manifold, 14... Intake pipe, 15... Large volume part.
Claims (1)
ールドと吸気パイプとの結合部に、該吸気パイプ
の断面積より大きい断面積を有し、流入空気の方
向性を緩和するようにした大容積部を設けたこと
を特徴とする箱型吸気マニホールド。 In a box-shaped intake manifold, a large volume part is provided at a joint between the intake manifold and the intake pipe, the part having a cross-sectional area larger than the cross-sectional area of the intake pipe, and designed to alleviate the directionality of incoming air. A box-shaped intake manifold featuring
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16165682U JPS5965972U (en) | 1982-10-27 | 1982-10-27 | Box-shaped intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16165682U JPS5965972U (en) | 1982-10-27 | 1982-10-27 | Box-shaped intake manifold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5965972U JPS5965972U (en) | 1984-05-02 |
| JPS6212863Y2 true JPS6212863Y2 (en) | 1987-04-03 |
Family
ID=30355210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16165682U Granted JPS5965972U (en) | 1982-10-27 | 1982-10-27 | Box-shaped intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5965972U (en) |
-
1982
- 1982-10-27 JP JP16165682U patent/JPS5965972U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5965972U (en) | 1984-05-02 |
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