JPS6435029A - Compression ratio varying device for internal combustion engine - Google Patents
Compression ratio varying device for internal combustion engineInfo
- Publication number
- JPS6435029A JPS6435029A JP19095387A JP19095387A JPS6435029A JP S6435029 A JPS6435029 A JP S6435029A JP 19095387 A JP19095387 A JP 19095387A JP 19095387 A JP19095387 A JP 19095387A JP S6435029 A JPS6435029 A JP S6435029A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- cylinder
- connecting rod
- compression ratio
- end portion
- 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 title abstract 3
- 238000007906 compression Methods 0.000 title abstract 3
- 238000002485 combustion reaction Methods 0.000 title 1
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
PURPOSE:To facilitate switching of compression ratio by forming a cylinder at the end portion of a connecting rod where a piston is coupled, and containing a plunger for hydraulically pushing the piston slidably upward in the cylinder. CONSTITUTION:An eccentric bearing 16 splitted in the center into two is placed between a cylindrical piston pin 15 having opposite ends 15a born in pin holes 11a of a piston 11 and a bearing hole 14 formed at small end portion 13 of a connecting rod 12. A cylinder 18 having one end opened to the bearing hole 14 is formed axially at the inside of the small end portion 13 of the shaft section 17 of the connecting rod 12, then a bottomed cylindrical plunger 19 is contained slidably therein and energized upward through a spring 20. Hydraulic pressure for pushing the plunger 19 upward while resisting against the spring 20 is fed from a hydraulic circuit 23 into the cylinder 16 so as to vary the height of the top face of piston with respect to the connecting rod 12 thus varying compression ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19095387A JPS6435029A (en) | 1987-07-30 | 1987-07-30 | Compression ratio varying device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19095387A JPS6435029A (en) | 1987-07-30 | 1987-07-30 | Compression ratio varying device for internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6435029A true JPS6435029A (en) | 1989-02-06 |
Family
ID=16266426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19095387A Pending JPS6435029A (en) | 1987-07-30 | 1987-07-30 | Compression ratio varying device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6435029A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100783314B1 (en) * | 2001-07-10 | 2007-12-10 | 현대자동차주식회사 | Piston mechanism |
| JP2014020375A (en) * | 2012-07-17 | 2014-02-03 | Waertsilae Schweiz Ag | Large reciprocating piston combustion engine, and control apparatus and method for controlling such engine |
| WO2016182000A1 (en) * | 2015-05-11 | 2016-11-17 | 株式会社Ihi | Crosshead engine |
| AT518647B1 (en) * | 2016-09-20 | 2017-12-15 | Avl List Gmbh | Internal combustion engine |
-
1987
- 1987-07-30 JP JP19095387A patent/JPS6435029A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100783314B1 (en) * | 2001-07-10 | 2007-12-10 | 현대자동차주식회사 | Piston mechanism |
| JP2014020375A (en) * | 2012-07-17 | 2014-02-03 | Waertsilae Schweiz Ag | Large reciprocating piston combustion engine, and control apparatus and method for controlling such engine |
| JP2019002406A (en) * | 2012-07-17 | 2019-01-10 | ヴェルトジィレ シュヴァイツ アクチェンゲゼルシャフト | Large reciprocating piston combustion engine and control apparatus and method for controlling such an engine |
| JP2021008885A (en) * | 2012-07-17 | 2021-01-28 | ヴェルトジィレ シュヴァイツ アクチェンゲゼルシャフト | Large reciprocating piston combustion engines, as well as control equipment and methods to control such engines |
| WO2016182000A1 (en) * | 2015-05-11 | 2016-11-17 | 株式会社Ihi | Crosshead engine |
| JP2016211680A (en) * | 2015-05-11 | 2016-12-15 | 株式会社Ihi | Crosshead type engine |
| AT518647B1 (en) * | 2016-09-20 | 2017-12-15 | Avl List Gmbh | Internal combustion engine |
| AT518647A4 (en) * | 2016-09-20 | 2017-12-15 | Avl List Gmbh | Internal combustion engine |
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