JPS5540256A - Compression ratio adjusting device of internal combustion engine - Google Patents
Compression ratio adjusting device of internal combustion engineInfo
- Publication number
- JPS5540256A JPS5540256A JP11325078A JP11325078A JPS5540256A JP S5540256 A JPS5540256 A JP S5540256A JP 11325078 A JP11325078 A JP 11325078A JP 11325078 A JP11325078 A JP 11325078A JP S5540256 A JPS5540256 A JP S5540256A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- pressure chamber
- oil pressure
- pin
- 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
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
PURPOSE: To sharply improve fuel cost, by controlling the relative location relationship of a piston and a rod by utilizing both relative, angular displacement momentum, and by changing the compression ratio of an engine in response to operational conditions.
CONSTITUTION: A piston 1 and a connecting rod 2 are connected by means of a piston pin body 3, the pin body 3 is formed by an offset pin portion 4, bearing portions 5a, 5b and piston pins 6a, 6b and said pin portions 4, 6 are identically made eccentric to a bearing portion 5. The pin portion 4 is inscribed with one portion of a shaft hole 8, and an A oil pressure chamber 9 and an atmospheric chamber 10 are made up by means of a sliding partition wall 11. A B oil pressure chamber 17 to which a free piston 18 is housed is built up in the axial direction of the pin portion 6a, and oil from a lubricating groove 28 in a crank-shaft 27 is properly supplied through an oil path 14 with said oil pressure chamber 9 and a C oil pressure chamber 12 in the sliding partition wall 11.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11325078A JPS5540256A (en) | 1978-09-14 | 1978-09-14 | Compression ratio adjusting device of internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11325078A JPS5540256A (en) | 1978-09-14 | 1978-09-14 | Compression ratio adjusting device of internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5540256A true JPS5540256A (en) | 1980-03-21 |
Family
ID=14607376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11325078A Pending JPS5540256A (en) | 1978-09-14 | 1978-09-14 | Compression ratio adjusting device of internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5540256A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57195834A (en) * | 1981-05-22 | 1982-12-01 | Us Government | Compression ratio automatic changing type internal combustion engine |
JPS5838343A (en) * | 1981-08-28 | 1983-03-05 | Toyota Motor Corp | Mechanism of variable compression ratio for internal-combustion engine |
JPS5838344A (en) * | 1981-08-31 | 1983-03-05 | Toyota Motor Corp | Mechanism of variable compression ratio for internal-combustion engine |
JPS5857040A (en) * | 1981-09-29 | 1983-04-05 | Toyota Motor Corp | Variable compression ratio mechanism of internal- combustion engine |
JPS5891340A (en) * | 1981-11-26 | 1983-05-31 | Toyota Motor Corp | Variable compression mechanism for internal-combustion engine |
JPS5882440U (en) * | 1981-11-28 | 1983-06-03 | トヨタ自動車株式会社 | Variable compression ratio mechanism for internal combustion engines |
JPS5940537U (en) * | 1982-09-03 | 1984-03-15 | トヨタ自動車株式会社 | Variable compression ratio mechanism for internal combustion engines |
JPS5940538U (en) * | 1982-09-04 | 1984-03-15 | トヨタ自動車株式会社 | Variable compression ratio mechanism for internal combustion engines |
US4721073A (en) * | 1985-10-25 | 1988-01-26 | Toyota Jidosha Kabushiki Kaisha | Compression ratio changing device using an eccentric bearing for an internal combustion engine |
CN105756781A (en) * | 2016-04-20 | 2016-07-13 | 吉林大学 | Two-level compression ratio variable piston-connecting rod assembly |
-
1978
- 1978-09-14 JP JP11325078A patent/JPS5540256A/en active Pending
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57195834A (en) * | 1981-05-22 | 1982-12-01 | Us Government | Compression ratio automatic changing type internal combustion engine |
JPS6335816B2 (en) * | 1981-05-22 | 1988-07-18 | Us Energy | |
JPS6332972B2 (en) * | 1981-08-28 | 1988-07-04 | Toyota Motor Co Ltd | |
JPS5838343A (en) * | 1981-08-28 | 1983-03-05 | Toyota Motor Corp | Mechanism of variable compression ratio for internal-combustion engine |
JPS5838344A (en) * | 1981-08-31 | 1983-03-05 | Toyota Motor Corp | Mechanism of variable compression ratio for internal-combustion engine |
JPS6334299B2 (en) * | 1981-08-31 | 1988-07-08 | Toyota Motor Co Ltd | |
JPS5857040A (en) * | 1981-09-29 | 1983-04-05 | Toyota Motor Corp | Variable compression ratio mechanism of internal- combustion engine |
JPS6349057B2 (en) * | 1981-11-26 | 1988-10-03 | Toyota Motor Co Ltd | |
JPS5891340A (en) * | 1981-11-26 | 1983-05-31 | Toyota Motor Corp | Variable compression mechanism for internal-combustion engine |
JPS5882440U (en) * | 1981-11-28 | 1983-06-03 | トヨタ自動車株式会社 | Variable compression ratio mechanism for internal combustion engines |
JPS5940537U (en) * | 1982-09-03 | 1984-03-15 | トヨタ自動車株式会社 | Variable compression ratio mechanism for internal combustion engines |
JPS6343397Y2 (en) * | 1982-09-03 | 1988-11-11 | ||
JPS5940538U (en) * | 1982-09-04 | 1984-03-15 | トヨタ自動車株式会社 | Variable compression ratio mechanism for internal combustion engines |
JPS6343398Y2 (en) * | 1982-09-04 | 1988-11-11 | ||
US4721073A (en) * | 1985-10-25 | 1988-01-26 | Toyota Jidosha Kabushiki Kaisha | Compression ratio changing device using an eccentric bearing for an internal combustion engine |
CN105756781A (en) * | 2016-04-20 | 2016-07-13 | 吉林大学 | Two-level compression ratio variable piston-connecting rod assembly |
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