JPS6332336Y2 - - Google Patents
Info
- Publication number
- JPS6332336Y2 JPS6332336Y2 JP4323681U JP4323681U JPS6332336Y2 JP S6332336 Y2 JPS6332336 Y2 JP S6332336Y2 JP 4323681 U JP4323681 U JP 4323681U JP 4323681 U JP4323681 U JP 4323681U JP S6332336 Y2 JPS6332336 Y2 JP S6332336Y2
- Authority
- JP
- Japan
- Prior art keywords
- air
- wall
- combustion chamber
- flow
- intake port
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
【考案の詳細な説明】 本考案は吸気装置に関するものである。[Detailed explanation of the idea] The present invention relates to an air intake device.
第１図は本考案の一実施例を示し、２は燃焼室
４に連通する吸気ポート、６は同吸気ポート２の
外側壁、８は内側壁である。外側壁６は燃焼室４
の周壁１０に接する方向に指向して形成され、内
側壁８は燃焼室４の中央方向に指向して形成され
る。１２は外側壁６に配置された空気噴出孔、１
４は同空気噴出孔１２に制御装置１６を介して空
気を吐出するエアポンプである。１８は空気噴出
孔１２に対向して内側壁８に配置された空気吸引
孔で、エアポンプ１４の吸入孔に連通されてい
る。２０は、吸気ポート２内において内側壁８寄
りに配置された仕切壁で、上流端縁２２は空気噴
出孔１２よりやや下流に位置している。 FIG. 1 shows an embodiment of the present invention, where 2 is an intake port communicating with a combustion chamber 4, 6 is an outer wall of the intake port 2, and 8 is an inner wall. The outer wall 6 is the combustion chamber 4
The inner wall 8 is formed so as to be oriented toward the center of the combustion chamber 4 . 12 is an air jet hole arranged on the outer wall 6;
4 is an air pump that discharges air to the air outlet 12 via the control device 16. Reference numeral 18 denotes an air suction hole arranged on the inner wall 8 opposite to the air jet hole 12, and communicates with the suction hole of the air pump 14. Reference numeral 20 denotes a partition wall disposed close to the inner wall 8 in the intake port 2, and the upstream edge 22 is located slightly downstream of the air jet hole 12.
上記構成により、空気を供給しないときには吸
気ポート２内の流れA1，A2，A3は、実線矢印で
示すように主として内側壁８及び外側壁６に沿つ
て流れる。 With the above configuration, when air is not supplied, the flows A 1 , A 2 , A 3 in the intake port 2 mainly flow along the inner wall 8 and the outer wall 6 as shown by solid arrows.
内側壁８に沿つた流れA1は燃焼室４の中央方
向に指向して抵抗少なく吸入される。 The flow A 1 along the inner wall 8 is directed towards the center of the combustion chamber 4 and is sucked in with less resistance.
中央の流れA2及び外側壁６に沿つた流れA3は
外側壁６及び仕切壁２０に案内され、燃焼室４の
周壁１０に接するように吸入されてスワールを強
化する。 The central flow A 2 and the flow A 3 along the outer wall 6 are guided by the outer wall 6 and the partition wall 20 and sucked into contact with the peripheral wall 10 of the combustion chamber 4 to strengthen the swirl.
空気噴出孔１２より二重破線で示すように空気
をを噴出し、且つ空気吸引孔１８から空気を吸引
すると、各流れは破線で示すように偏向される。
特に内側壁８に沿う流れA1は、空気噴出孔１２
からの噴出空気に押圧されて偏向すると、仕切壁
２０により強制的に流れ方向が維持され、全体と
して外側壁６側に押圧された流れとなり燃焼室４
内のスワールを強化する。 When air is ejected from the air ejection hole 12 as shown by the double broken line and air is sucked from the air suction hole 18, each flow is deflected as shown by the broken line.
In particular, the flow A 1 along the inner wall 8 is caused by the air outlet 12
When the air is pressed and deflected by the air ejected from the combustion chamber 4, the flow direction is forcibly maintained by the partition wall 20, resulting in a flow that is pushed toward the outer wall 6 as a whole.
Strengthen the inner swirl.
上記制御装置１６は、第２図に示す燃焼室４内
の要求スワール強さに応じて空気噴出量を制御
し、低回転速度高負荷時に空気噴出量を最大とし
てスワールを強化し、中回転速度中〜高負荷時に
は空気噴出量を低減してスワールを低減し、低回
転速度低負荷時〜高回転速度時には空気噴出を停
止してスワールをより低減する。 The control device 16 controls the amount of air ejected according to the required swirl strength in the combustion chamber 4 shown in FIG. At medium to high loads, the amount of air ejected is reduced to reduce swirl, and at low rotational speeds and low loads to high rotational speeds, air ejection is stopped to further reduce swirl.
従つて本実施例によれば、全回転速度全負荷範
囲において適切な燃焼室内スワールを得ることが
でき燃焼が改善され、出力が向上し、燃費が良好
となる効果を奏する。 Therefore, according to this embodiment, it is possible to obtain an appropriate swirl in the combustion chamber in all rotation speeds and all load ranges, improving combustion, increasing output, and improving fuel efficiency.
第３図は上記一実施例の変形例を示し、吸気ポ
ート２上壁２４に空気噴出孔１２を設け、下壁２
６に空気吸入孔１８を設けたもので、上壁２４に
沿う流れB1は抵抗少なく燃焼室４中央に流入し、
中央部分の流れB2と下壁２６に沿う流れB3は燃
焼室４の周壁１０に沿う方向に指向して強向なス
ワールを伴なつて流入する。 FIG. 3 shows a modification of the above-mentioned embodiment, in which an air jet hole 12 is provided in the upper wall 24 of the intake port 2, and the lower wall 2
6 is provided with an air intake hole 18, and the flow B1 along the upper wall 24 flows into the center of the combustion chamber 4 with less resistance.
The flow B 2 in the central portion and the flow B 3 along the lower wall 26 flow in a direction along the peripheral wall 10 of the combustion chamber 4 with a strong swirl.
空気噴出孔１２からの空気噴出及び空気吸入孔
１８により吸入によつて、各流れB1，B2，B3は
破線で示すように下壁２６方向に押圧され、燃焼
室４内のスワールを強化する。 Due to the air jetting out from the air jetting hole 12 and being sucked in through the air suction hole 18, each of the flows B 1 , B 2 , B 3 is pushed toward the lower wall 26 as shown by the broken line, causing a swirl in the combustion chamber 4 . Strengthen.
従つて本変形例によつても上記実施例同様の作
用効果を奏する。 Therefore, this modification also provides the same effects as the above embodiment.
第１図は本考案の一実施例を示す概略説明図、
第２図はスワール特性図、第３図は一実施例の変
形例を示す概略説明図である。
２……吸気ポート、４……燃焼室、６……外側
壁、８……内側壁、１２……空気噴出孔、１８…
…空気吸入孔。
FIG. 1 is a schematic explanatory diagram showing an embodiment of the present invention;
FIG. 2 is a swirl characteristic diagram, and FIG. 3 is a schematic explanatory diagram showing a modification of one embodiment. 2...Intake port, 4...Combustion chamber, 6...Outer wall, 8...Inner wall, 12...Air jet hole, 18...
...Air intake hole.
Claims (1)
気ポートの周壁において互いに対向した位置に配
置された一対の空気噴出孔及び空気吸引孔、上記
空気噴出孔及び空気吸引孔に連通するポンプ装置
を備えたことを特徴とする吸気装置。 An intake port that communicates with a combustion chamber of the engine, a pair of air injection holes and an air suction hole that are arranged opposite to each other on a peripheral wall of the intake port, and a pump device that communicates with the air injection hole and the air suction hole. An intake device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4323681U JPS6332336Y2 (en) | 1981-03-26 | 1981-03-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4323681U JPS6332336Y2 (en) | 1981-03-26 | 1981-03-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57156027U JPS57156027U (en) | 1982-09-30 |
| JPS6332336Y2 true JPS6332336Y2 (en) | 1988-08-29 |
Family
ID=29840232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4323681U Expired JPS6332336Y2 (en) | 1981-03-26 | 1981-03-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6332336Y2 (en) |
-
1981
- 1981-03-26 JP JP4323681U patent/JPS6332336Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57156027U (en) | 1982-09-30 |
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