JPS61118928U - - Google Patents
Info
- Publication number
- JPS61118928U JPS61118928U JP197885U JP197885U JPS61118928U JP S61118928 U JPS61118928 U JP S61118928U JP 197885 U JP197885 U JP 197885U JP 197885 U JP197885 U JP 197885U JP S61118928 U JPS61118928 U JP S61118928U
- Authority
- JP
- Japan
- Prior art keywords
- communication port
- engine
- auxiliary
- auxiliary piston
- compression ratio
- 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
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
図面において、第１図ａ，ｂ，ｃ，ｄは本考案
に係る圧縮比調整装置の一実施例を適用した内燃
機関の吸入、圧縮、膨張、排気各行程での構成態
様をそれぞれに示す要部断面図、第２図は同上補
助ピストンと作動カムとの作動タイミングを示す
説明図である。
１……シリンダ本体、１ａ……シリンダ、２…
…シリンダヘツド、３……ピストン、４……燃焼
室、５，６……吸気ポート、排気ポート、７，８
……吸気バルブ、排気バルブ、１１……カムシヤ
フト、１６……補助シリンダ、１７……補助ピス
トン、１８……可変圧縮比チヤンバ、１９……連
絡ポート、２０……補助ピストン同作動カム、２
１……ピストンスプリング。
In the drawings, FIGS. 1a, b, c, and d each show the configuration in each of the intake, compression, expansion, and exhaust strokes of an internal combustion engine to which an embodiment of the compression ratio adjusting device according to the present invention is applied. A partial sectional view and FIG. 2 are explanatory diagrams showing the operation timing of the auxiliary piston and the operation cam. 1...Cylinder body, 1a...Cylinder, 2...
...Cylinder head, 3... Piston, 4... Combustion chamber, 5, 6... Intake port, exhaust port, 7, 8
... Intake valve, exhaust valve, 11 ... Camshaft, 16 ... Auxiliary cylinder, 17 ... Auxiliary piston, 18 ... Variable compression ratio chamber, 19 ... Communication port, 20 ... Auxiliary piston synchronized cam, 2
1...Piston spring.
Claims (1)
の補助シリンダ内に挿入された補助ピストンと、
連絡ポートにより前記補助シリンダを介して前記
燃焼室内に連通された可変圧縮比チヤンバと、機
関の回転に同期するカムシヤフトに設けられて前
記補助ピストンを往復動させる補助ピストン用作
動カムとを有し、前記作動カムにより補助ピスト
ンを、機関の吸入および圧縮行程では、前記連絡
ポートを閉じ、かつ膨張行程の切期に連絡ポート
を開くと共に、排気行程に至つて再度連絡ポート
を閉じるように作動させることを特徴とする内燃
機関の圧縮比調整装置。 an auxiliary cylinder opening into the engine combustion chamber; and an auxiliary piston inserted into the auxiliary cylinder;
a variable compression ratio chamber communicated with the combustion chamber through the auxiliary cylinder by a communication port, and an auxiliary piston operating cam provided on a camshaft that synchronizes with the rotation of the engine and reciprocates the auxiliary piston; The actuation cam operates the auxiliary piston to close the communication port during the suction and compression strokes of the engine, open the communication port at the end of the expansion stroke, and close the communication port again during the exhaust stroke. A compression ratio adjustment device for an internal combustion engine, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP197885U JPS61118928U (en) | 1985-01-10 | 1985-01-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP197885U JPS61118928U (en) | 1985-01-10 | 1985-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61118928U true JPS61118928U (en) | 1986-07-26 |
Family
ID=30475220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP197885U Pending JPS61118928U (en) | 1985-01-10 | 1985-01-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61118928U (en) |
-
1985
- 1985-01-10 JP JP197885U patent/JPS61118928U/ja active Pending
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