Title:
可変圧縮比内燃機関
Document Type and Number:
Japanese Patent JP5888108
Kind Code:
B2
Abstract:
A variable compression ratio internal combustion engine basically has a main engine body and a variable compression ratio mechanism. A housing is attached to an outside wall of the main engine body to support an actuator. The variable compression ratio mechanism varies an engine compression ratio according to a rotational position of a first control shaft by the actuator. A second control shaft links the actuator to the first control shaft. A bearing includes a pair of split bearing bodies that rotatably holds and supports the second control shaft on the housing. The split bearing body that is farther from the main engine body has higher in rigidity than the housing. The bearing is fixed to the side wall of the main engine body by fixing bolts that pass through both of the split bearing bodies and thread into the side wall of the main engine body.
Inventors:
Ryosuke Hiyoshi
Noriaki Tanaka
Yusuke Takagi
Noriaki Tanaka
Yusuke Takagi
Application Number:
JP2012114036A
Publication Date:
March 16, 2016
Filing Date:
May 18, 2012
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02B75/04; F01M5/00; F01M11/03; F02B75/32; F02B77/00; F02D15/02
Domestic Patent References:
| JP2008138607A | ||||
| JP2011169152A | ||||
| JP55104511A |
Foreign References:
| EP1433938A2 | ||||
| WO2013080673A1 |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tsuyoshi Hashimoto
Tomioka Kiyoshi
Tsuyoshi Hashimoto