JPH02141641U - - Google Patents
Info
- Publication number
- JPH02141641U JPH02141641U JP5224789U JP5224789U JPH02141641U JP H02141641 U JPH02141641 U JP H02141641U JP 5224789 U JP5224789 U JP 5224789U JP 5224789 U JP5224789 U JP 5224789U JP H02141641 U JPH02141641 U JP H02141641U
- Authority
- JP
- Japan
- Prior art keywords
- intake passage
- internal combustion
- combustion engine
- main
- intake
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 10
Description
第１図は本考案の吸気通路開閉装置の一例を備
えた内燃機関の要部の説明的断面図、第２図は第
１図の−線断面図、第３図はその作動を説明
するための線図、第４図は従来の吸気通路開閉装
置を備えた内燃機関の要部の説明的断面図である
。
１……主吸気通路、１ａ……第１吸気通路、１
ｂ……第２吸気通路、２……燃焼室、５……遮蔽
板、６……揺動軸、７……揺動手段、８ａ，８ｂ
……吸気弁、Ｐ……分岐位置。
Fig. 1 is an explanatory sectional view of the main parts of an internal combustion engine equipped with an example of the intake passage opening/closing device of the present invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, and Fig. 3 is for explaining its operation. FIG. 4 is an explanatory sectional view of the main parts of an internal combustion engine equipped with a conventional intake passage opening/closing device. 1... Main intake passage, 1a... First intake passage, 1
b... Second intake passage, 2... Combustion chamber, 5... Shielding plate, 6... Rocking shaft, 7... Rocking means, 8a, 8b
...Intake valve, P...branch position.
Claims (1)
して成る第１及び第２吸気通路が該燃焼室に吸気
弁を介して連通された内燃機関において該第２吸
気通路を開閉する装置であつて、前記第２吸気通
路を閉塞する位置で前記主吸気通路の分岐位置か
ら該主吸気通路の吸気口側に向かつて斜めに延び
て該主吸気通路に略直交する揺動軸に固定されて
該軸により揺動自在に設けられる遮蔽板と、該遮
蔽板をその揺動軸の回りに揺動させて該第２吸気
通路を内燃機関の高速回転時に開くと共に低中速
回転時に閉じる揺動手段とから成ることを特徴と
する内燃機関の吸気通路開閉装置。 ２ 前記遮蔽板が前記第２吸気通路を閉塞する位
置で前記主吸気通路の分岐位置から該主吸気通路
の吸気口まで斜めに延びて設けられていることを
特徴とする請求項１記載の内燃機関の吸気通路開
閉装置。[Claims for Utility Model Registration] 1. At least the second intake passage in an internal combustion engine in which first and second intake passages formed by branching off from a main intake passage toward a combustion chamber are communicated with the combustion chamber via an intake valve. The device is a device for opening and closing the second intake passage, and includes a swing that extends obliquely from a branching position of the main intake passage toward the intake port side of the main intake passage and is substantially orthogonal to the main intake passage at a position where the second intake passage is closed. A shield plate is fixed to a moving shaft and is swingable by the shaft, and the second intake passage is opened when the internal combustion engine rotates at high speed by swinging the shield plate around the swing shaft, and the second intake passage is opened during high speed rotation of the internal combustion engine. An intake passage opening/closing device for an internal combustion engine, comprising a swinging means that closes when rotating at high speed. 2. The internal combustion engine according to claim 1, wherein the shielding plate is provided to obliquely extend from a branching position of the main intake passage to an intake port of the main intake passage at a position where the shielding plate closes the second intake passage. Engine intake passage opening/closing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5224789U JPH02141641U (en) | 1989-05-01 | 1989-05-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5224789U JPH02141641U (en) | 1989-05-01 | 1989-05-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02141641U true JPH02141641U (en) | 1990-11-29 |
Family
ID=31572391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5224789U Pending JPH02141641U (en) | 1989-05-01 | 1989-05-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02141641U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60122250A (en) * | 1983-12-05 | 1985-06-29 | Toyota Motor Corp | Double suction valve engine |
-
1989
- 1989-05-01 JP JP5224789U patent/JPH02141641U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60122250A (en) * | 1983-12-05 | 1985-06-29 | Toyota Motor Corp | Double suction valve engine |
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