JPS63108536U - - Google Patents
Info
- Publication number
- JPS63108536U JPS63108536U JP52787U JP52787U JPS63108536U JP S63108536 U JPS63108536 U JP S63108536U JP 52787 U JP52787 U JP 52787U JP 52787 U JP52787 U JP 52787U JP S63108536 U JPS63108536 U JP S63108536U
- Authority
- JP
- Japan
- Prior art keywords
- piston
- oil chamber
- pin
- inner sleeve
- oil
- 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 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Description
第１図は本考案の実施例を示す全体構成図、第
２図は同図Ｘ―Ｘ線に沿う断面図、第３図は同図
Ｙ―Ｙ線に沿う断面図である。第４図は他の実施
例を示す全体構成図、第５図は同図Ｘ―Ｘ線に沿
う断面図、第６図は同図Ｙ―Ｙ線に沿う断面図で
ある。第７図は従来例を示す断面図である。
１……ピストン本体、２……インナピストン、
３……ピストンピン、４……コンロツド、５……
第一の油室、６……ストツパリング、７……イン
ナスリーブ、８……第二の油室。
FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line XX in the same figure, and FIG. 3 is a sectional view taken along the line YY in the same figure. FIG. 4 is an overall configuration diagram showing another embodiment, FIG. 5 is a sectional view taken along the line XX in the same figure, and FIG. 6 is a sectional view taken along the line YY in the same figure. FIG. 7 is a sectional view showing a conventional example. 1... Piston body, 2... Inner piston,
3...Piston pin, 4...Conrod, 5...
First oil chamber, 6...stopper ring, 7...inner sleeve, 8...second oil chamber.
Claims (1)
トンを設け、このインナピストンをピストンピン
を介してコンロツドに揺動自在に連結するととも
に、ピストン本体の底面とインナピストンの頂面
の間に第一の油室を形成し、第一の油室に運転条
件に応じて加圧オイルを供給する油通路を接続す
る一方、ピストン本体のスカート部にはインナピ
ストンとの間に筒状のインナスリーブを取付け、
このインナスリーブの上面とインナピストンのス
カート部との間に上記第一の油室に連通する第二
の油室を形成し、この第二の油室をピストンピン
より上方に配置するとともに、ピストンピンより
下方に位置してピストン本体のスカート部に螺合
するストツパリングを設け、このストツパリング
を介して上記インナスリーブを締結したことを特
徴とする内燃機関の圧縮比可変装置。 An inner piston is provided that is slidably fitted into the piston body, and this inner piston is swingably connected to the connecting rod via a piston pin. An oil chamber is formed, and an oil passage that supplies pressurized oil according to operating conditions is connected to the first oil chamber, while a cylindrical inner sleeve is installed between the inner piston and the skirt of the piston body. ,
A second oil chamber communicating with the first oil chamber is formed between the upper surface of the inner sleeve and the skirt portion of the inner piston, and the second oil chamber is disposed above the piston pin. 1. A variable compression ratio device for an internal combustion engine, characterized in that a stopper ring is provided below the pin and is screwed into the skirt portion of the piston body, and the inner sleeve is fastened via the stopper ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000527U JPH0612214Y2 (en) | 1987-01-06 | 1987-01-06 | Variable compression ratio device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987000527U JPH0612214Y2 (en) | 1987-01-06 | 1987-01-06 | Variable compression ratio device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63108536U true JPS63108536U (en) | 1988-07-13 |
| JPH0612214Y2 JPH0612214Y2 (en) | 1994-03-30 |
Family
ID=30777578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987000527U Expired - Lifetime JPH0612214Y2 (en) | 1987-01-06 | 1987-01-06 | Variable compression ratio device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0612214Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022182A (en) * | 1983-07-18 | 1985-02-04 | キヤノン株式会社 | Pattern output unit |
-
1987
- 1987-01-06 JP JP1987000527U patent/JPH0612214Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6022182A (en) * | 1983-07-18 | 1985-02-04 | キヤノン株式会社 | Pattern output unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0612214Y2 (en) | 1994-03-30 |