JPH0264723U - - Google Patents
Info
- Publication number
- JPH0264723U JPH0264723U JP14443888U JP14443888U JPH0264723U JP H0264723 U JPH0264723 U JP H0264723U JP 14443888 U JP14443888 U JP 14443888U JP 14443888 U JP14443888 U JP 14443888U JP H0264723 U JPH0264723 U JP H0264723U
- Authority
- JP
- Japan
- Prior art keywords
- port
- helical
- bypass
- intake
- bypass 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.)
- Pending
Links
- 238000013459 approach Methods 0.000 claims 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
第１図は本考案の第１実施例に係るヘリカル型
吸気ポート３０の平面図、第２図は第１図のヘリ
カル型吸気ポート３０の側面図、第３図は第１図
の―線に沿う断面図、第４図は第１図の―
線に沿う断面図、第５図は本考案の第２実施例
に係るヘリカル型吸気ポート９０の平面図、第６
図イはバイパスポートを有しない、吸気１弁に利
用される、従来のヘリカル型吸気ポート２の概略
平面図、第６図ロはバイパスポートを有する、吸
気１弁に利用される、従来のヘリカル型吸気ポー
ト６の概略平面図、第６図ハはバイパスポートを
有する、吸気２弁に利用される、従来のヘリカル
型吸気ポート１６の概略平面図、である。
３０…（吸気１弁に適用される第１実施例の）
ヘリカル型吸気ポート、３２…ポート入口端面、
３４…スロート部、３８…バルブガイド、４０…
垂下壁、４２…ヘリカルポート、４４…バイパス
ポート、４６…（ヘリカルポート４２の）直線部
、４８…（ヘリカルポート４２の）渦巻部、５０
…スワールコントロールバルブ、５２…ヘリカル
ポート終端、５４…バルブガイド軸心、５６…バ
ルブガイド軸心５４を含みポート入口端面３２に
平行な面、５８…（渦巻部４８の）最小絞り部、
６０…（渦巻部４８の）拡大部、６４…（垂下壁
４０の）下端、６８…（バイパスポート４４の）
上壁面、７２…（バイパスポート４４の上壁面と
外側側壁面との）交線、７２ａ…交線７２の延長
線、７６…スロート部３４のポート入口から最も
遠い部分、７８…（バイパスポート４４の）下壁
面、８０…つなぎ面、Ｄ，Ｅ，Ｆ…つなぎ面８０
のほぼ三角形状の頂点、Ｆｈ…ヘリカルポート４
２の流れ、Ｆｂ…バイパスポート４４の流れ、９
０…（吸気２弁に適用される第２実施例の）ヘリ
カル型吸気ポート、９２…ヘリカル型吸気ポート
９０の一方のポートで第１実施例のヘリカル型吸
気ポート３０に準じる構成をもつポート、９４…
ヘリカル型吸気ポートの他方のポート。
1 is a plan view of a helical intake port 30 according to a first embodiment of the present invention, FIG. 2 is a side view of the helical intake port 30 of FIG. 1, and FIG. Figure 4 is a cross-sectional view along the line of Figure 1.
5 is a sectional view taken along the line, and FIG. 5 is a plan view of a helical intake port 90 according to the second embodiment of the present invention.
Figure A is a schematic plan view of a conventional helical intake port 2 that does not have a bypass port and is used for the intake valve 1. Figure 6B is a schematic plan view of a conventional helical intake port 2 that does not have a bypass port and is used for the intake valve 1. FIG. 6C is a schematic plan view of a conventional helical-type intake port 16, which has a bypass port and is used for two intake valves. 30... (of the first embodiment applied to one intake valve)
Helical intake port, 32... port inlet end surface,
34... Throat part, 38... Valve guide, 40...
Hanging wall, 42... Helical port, 44... Bypass port, 46... Straight part (of helical port 42), 48... Spiral part (of helical port 42), 50
...Swirl control valve, 52... Helical port end, 54... Valve guide axis, 56... A plane that includes the valve guide axis 54 and is parallel to the port inlet end surface 32, 58... (The spiral portion 48) minimum throttle part,
60... Enlarged part (of the spiral part 48), 64... Lower end (of the hanging wall 40), 68... (of the bypass port 44)
Upper wall surface, 72... Line of intersection (between the upper wall surface of the bypass port 44 and the outer side wall surface), 72a... An extension of the line of intersection 72, 76... The farthest part from the port entrance of the throat portion 34, 78... (The bypass port 44) ) Lower wall surface, 80...Connection surface, D, E, F...Connection surface 80
Almost triangular apex, Fh...Helical port 4
Flow of 2, Fb...Flow of bypass port 44, 9
0...Helical type intake port (of the second embodiment applied to two intake valves), 92...One port of the helical type intake port 90 having a configuration similar to the helical type intake port 30 of the first embodiment, 94...
The other port of the helical intake port.
Claims (1)
トとに２分され、バイパスポートにはスワールコ
ントロールバルブがバイパスポートを開閉可能に
設けられている吸気ポートにおいて、 ヘリカルポートは、ヘリカルポート終端がバル
ブガイド軸心を含みポート入口端面に平行な面よ
りもポート入口側に位置するように、延ばされて
おり、 バイパスポートの上壁面はバイパスポート外側
部から垂下壁に近づくにつれて低くなるように構
成されており、 ヘリカルポートの上壁面の終端線とバイパスポ
ートの上壁面の終端線とをつなぐ、平面視でほぼ
三角形状の、つなぎ面は、ヘリカルポートからの
流れをバルブガイドに導くように傾斜されている
、 ことを特徴とするヘリカル型吸気ポート。[Scope of claim for utility model registration] In an intake port that is divided into a helical port and a bypass port by a hanging wall, and the bypass port is equipped with a swirl control valve that can open and close the bypass port, the helical port is The end of the helical port is extended so that it is located closer to the port entrance than the plane that includes the valve guide axis and is parallel to the port entrance end surface, and the upper wall surface of the bypass port extends as it approaches the hanging wall from the outside of the bypass port. The connection surface, which is approximately triangular in plan view and connects the termination line on the upper wall of the helical port and the termination line on the upper wall of the bypass port, guides the flow from the helical port to the valve. A helical intake port that is slanted to guide the air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14443888U JPH0264723U (en) | 1988-11-07 | 1988-11-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14443888U JPH0264723U (en) | 1988-11-07 | 1988-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0264723U true JPH0264723U (en) | 1990-05-15 |
Family
ID=31412154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14443888U Pending JPH0264723U (en) | 1988-11-07 | 1988-11-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0264723U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008038656A (en) * | 2006-08-02 | 2008-02-21 | Toyota Motor Corp | Intake port of internal combustion engine |
-
1988
- 1988-11-07 JP JP14443888U patent/JPH0264723U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008038656A (en) * | 2006-08-02 | 2008-02-21 | Toyota Motor Corp | Intake port of internal combustion engine |
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