JPS5540256A - Compression ratio adjusting device of internal combustion engine - Google Patents

Compression ratio adjusting device of internal combustion engine

Info

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
Application number
JP11325078A
Other languages
Japanese (ja)
Inventor
Shunichi Aoyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP11325078A priority Critical patent/JPS5540256A/en
Publication of JPS5540256A publication Critical patent/JPS5540256A/en
Pending legal-status Critical Current

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
JP11325078A 1978-09-14 1978-09-14 Compression ratio adjusting device of internal combustion engine Pending JPS5540256A (en)

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)

* Cited by examiner, † Cited by third party
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
JPS5838344A (en) * 1981-08-31 1983-03-05 Toyota Motor Corp Mechanism of variable compression ratio for internal-combustion engine
JPS5838343A (en) * 1981-08-28 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

Cited By (10)

* Cited by examiner, † Cited by third party
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

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