JPS6314840U - - Google Patents
Info
- Publication number
- JPS6314840U JPS6314840U JP10742886U JP10742886U JPS6314840U JP S6314840 U JPS6314840 U JP S6314840U JP 10742886 U JP10742886 U JP 10742886U JP 10742886 U JP10742886 U JP 10742886U JP S6314840 U JPS6314840 U JP S6314840U
- Authority
- JP
- Japan
- Prior art keywords
- guide plate
- spiral
- intake
- intake port
- opened
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 6
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
第１図は本考案に係わる内燃機関の吸気装置の
一実施例を示す縦断面図、第２図は第１図中―
線で示す同上実施例の横断面図、第３図Ａ，Ｂ
は夫々同上実施例における案内板の他の位置を示
す横断面図、第４図は同上実施例と従来例の効果
の相違を説明するスワール比とポート流量係数と
の関係を表すグラフ、第５図は機関回転速度とス
ワール比との関係を表すグラフ、第６図は従来の
吸気装置の一例を示す縦断面図、第７図は従来の
吸気装置の他の例を示す縦断面図、第８図は第７
図中―線で示す同上従来例の横断面図である
。
６……シリンダヘツド、７……燃焼室、８……
ヘリカル型吸気ポート、１１……渦巻部、１６…
…凹部、１７……案内板、２０……案内板回動装
置、２５……電磁アクチユエータ、２６……速度
スイツチ、２７……制御手段、２８……連通孔。
FIG. 1 is a longitudinal sectional view showing an embodiment of an intake system for an internal combustion engine according to the present invention, and FIG.
Cross-sectional view of the above embodiment shown by lines, FIGS. 3A and B
4 is a cross-sectional view showing other positions of the guide plate in the above embodiment, FIG. 4 is a graph showing the relationship between the swirl ratio and the port flow coefficient to explain the difference in effect between the above embodiment and the conventional example, and FIG. The figure is a graph showing the relationship between engine rotational speed and swirl ratio, FIG. 6 is a longitudinal sectional view showing an example of a conventional intake device, FIG. 7 is a longitudinal sectional view showing another example of a conventional intake device, and FIG. Figure 8 is the seventh
It is a cross-sectional view of the conventional example same as the above, indicated by a line in the figure. 6...Cylinder head, 7...Combustion chamber, 8...
Helical intake port, 11... spiral part, 16...
... recess, 17 ... guide plate, 20 ... guide plate rotation device, 25 ... electromagnetic actuator, 26 ... speed switch, 27 ... control means, 28 ... communication hole.
Claims (1)
してなるヘリカル型吸気ポートを備えた内燃機関
において、前記渦巻部終端部内に設けられ吸気流
を一方の側面に衝突せしめて燃焼室方向に流線を
変更させると共に前記吸気ポートの直線部と渦巻
部終端部とを直接連通する連通部を開放して該連
通部から導入される吸気流を他方の側面に衝突せ
しめて燃焼室方向に流線を変更させる位置と、渦
巻部終端部内に設けられた凹部に格納されると共
に前記連通部を閉塞する位置と、の間で回動自由
に構成された案内板及び該案内板を機関運転状態
に応じて回動しその回動位置を定める案内板回動
装置を備えたことを特徴とする内燃機関の吸気装
置。 In an internal combustion engine equipped with a helical intake port in which a spiral portion is formed around the intake valve at the end of the intake port, a helical intake port is provided within the end of the spiral to cause the intake air to collide with one side surface and flow toward the combustion chamber. At the same time, the straight line of the intake port and the terminal end of the spiral part are opened, and the communication part that directly communicates with the end part of the spiral part is opened, so that the intake air flow introduced from the communication part collides with the other side surface to create a streamline in the direction of the combustion chamber. a guide plate configured to be freely rotatable between a position for changing the flow rate and a position for storing in a recess provided in a terminal end of the spiral portion and closing the communication portion; and a guide plate for placing the guide plate in an engine operating state. 1. An intake device for an internal combustion engine, comprising a guide plate rotating device that rotates in response to the rotational position of the guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10742886U JPH0531218Y2 (en) | 1986-07-15 | 1986-07-15 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10742886U JPH0531218Y2 (en) | 1986-07-15 | 1986-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6314840U true JPS6314840U (en) | 1988-01-30 |
| JPH0531218Y2 JPH0531218Y2 (en) | 1993-08-11 |
Family
ID=30983701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10742886U Expired - Lifetime JPH0531218Y2 (en) | 1986-07-15 | 1986-07-15 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0531218Y2 (en) |
-
1986
- 1986-07-15 JP JP10742886U patent/JPH0531218Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0531218Y2 (en) | 1993-08-11 |
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