JPH02105540U - - Google Patents
Info
- Publication number
- JPH02105540U JPH02105540U JP1266989U JP1266989U JPH02105540U JP H02105540 U JPH02105540 U JP H02105540U JP 1266989 U JP1266989 U JP 1266989U JP 1266989 U JP1266989 U JP 1266989U JP H02105540 U JPH02105540 U JP H02105540U
- Authority
- JP
- Japan
- Prior art keywords
- throttle valve
- port
- engine
- cylinder
- opens
- 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
- 239000000446 fuel Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 2
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
Landscapes
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Description
第1図は本考案に係るスロツトルバルブを適用
したエンジンの吸気ポートの一実施例を示す要部
断面図、第2図は第1図の吸気ポートの矢線―
に沿う断面図、第3図は本考案の第2実施例を
示す断面図、第4図乃至第7図は本考案の第3実
施例を示し、第4図は吸気ポートの配置を示す図
、第5図は第4図の矢線―に沿う断面図、第
6図a,b,cは夫々第4図の吸気ポートの側面
図、平面図、斜視図、第7図は第6図の各部の断
面図である。
1……吸気ポート、1d,1n……ヘリカルポ
ート部、1e,1m……ストレートポート部、2
……インレツトバルブ、3……スロツトルバルブ
、5,5′……マスキング部、6……燃料噴射弁
、10……シリンダ。
Fig. 1 is a sectional view of a main part showing an example of an intake port of an engine to which a throttle valve according to the present invention is applied, and Fig. 2 shows an arrow line of the intake port in Fig. 1.
3 is a sectional view showing a second embodiment of the present invention, FIGS. 4 to 7 show a third embodiment of the present invention, and FIG. 4 is a diagram showing the arrangement of intake ports. , FIG. 5 is a sectional view taken along the arrow line - in FIG. 4, FIGS. 6 a, b, and c are side views, plan views, and perspective views of the intake port in FIG. 4, respectively, and FIG. FIG. 1...Intake port, 1d, 1n...Helical port section, 1e, 1m...Straight port section, 2
...Inlet valve, 3...Throttle valve, 5, 5'...Masking section, 6...Fuel injection valve, 10...Cylinder.
Claims (1)
を与えるヘリカルポート部と、前記混合気をその
まま前記シリンダに流入させるストレートポート
部とを備える吸気ポートの、インレツトバルブの
直ぐ上流位置に、且つ前記エンジンの低速度域に
おいて前記ヘリカルポート部を開口し前記ストレ
ートポート部を閉塞し、中高速度域において吸気
ポート全体を開口するスロツトルバルブを配置し
、当該スロツトルバルブをスワールコントロール
バルブと兼用させることを特徴とするスロツトル
バルブ。 The engine is located at a position immediately upstream of the inlet valve of an intake port, which has a helical port section that provides a swirling flow to the air-fuel mixture flowing into the cylinder of the engine, and a straight port section that allows the air-fuel mixture to flow directly into the cylinder. A throttle valve is disposed that opens the helical port portion and closes the straight port portion in a low speed range, and opens the entire intake port in a medium and high speed range, and the throttle valve is also used as a swirl control valve. Features a throttle valve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1266989U JPH02105540U (en) | 1989-02-07 | 1989-02-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1266989U JPH02105540U (en) | 1989-02-07 | 1989-02-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02105540U true JPH02105540U (en) | 1990-08-22 |
Family
ID=31222317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1266989U Pending JPH02105540U (en) | 1989-02-07 | 1989-02-07 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02105540U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005047668A1 (en) * | 2003-11-12 | 2005-05-26 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine |
US11053896B2 (en) | 2017-03-27 | 2021-07-06 | Honda Motor Co., Ltd. | Intake passage structure |
-
1989
- 1989-02-07 JP JP1266989U patent/JPH02105540U/ja active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005047668A1 (en) * | 2003-11-12 | 2005-05-26 | Yamaha Hatsudoki Kabushiki Kaisha | Internal combustion engine |
US11053896B2 (en) | 2017-03-27 | 2021-07-06 | Honda Motor Co., Ltd. | Intake passage structure |
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