Title:
可変圧縮比内燃機関
Document Type and Number:
Japanese Patent JP7172536
Kind Code:
B2
Abstract:
To raise a compression ratio at a high load in order to further improve fuel economy, in a variable compression ratio internal combustion engine.SOLUTION: An internal combustion engine 1 lowers a compression ratio at an engine high load, and raises the compression ratio at an engine low load. The internal combustion engine 1 has an upper link 15 whose one end is connected to a piston pin 18, and the other end is rotatably connected to a crankpin 21 of a crankshaft 20, and which is connected to a lower link 16. The upper link 15 has a penetration hole 45 which is formed so as to make a lubricant injected from a lower link oil passage 51 in a piston ascending stoke at the engine high load pass therethrough, and to introduce the lubricant which has passed to a crown face backside at a side at which an exhaust valve 6 is located in a crankshaft axial view.SELECTED DRAWING: Figure 1
Inventors:
Satoru Okuma
Katsuya Mogi
Katsuya Mogi
Application Number:
JP2018231236A
Publication Date:
November 16, 2022
Filing Date:
December 11, 2018
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02B75/04; F01M1/08; F01P3/08; F02B75/32; F02D15/02
Domestic Patent References:
| JP2010185396A | ||||
| JP2010116777A | ||||
| JP2004116434A |
Foreign References:
| WO2015029670A1 |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Kiyoshi Tomioka
Kiyoshi Tomioka
Previous Patent: Thermoforming food packaging film, thermoforming multi-layer food packaging film, deep drawing packa...
Next Patent: CONVEYING DEVICE
Next Patent: CONVEYING DEVICE