Title:
内燃機関の複リンク式ピストンクランク機構
Document Type and Number:
Japanese Patent JP6923083
Kind Code:
B2
Abstract:
A lower link (7) is formed of two components by being divided at a dividing surface (14) including the central axis of a crank pin bearing portion (11), the two components including a lower link upper (15) with an upper pin bearing portion (12) and a lower link lower (16) with a control pin bearing portion (13). The dividing surface (14) includes a first dividing surface (14a) located more on the upper link side than the crank pin bearing portion (11) and a second dividing surface (14b) located more on the control link side than the crank pin bearing portion (11). In the lower link (7), the first dividing surface (14a) has a surface roughness larger than a surface roughness of the second dividing surface (14b).
Inventors:
Tomoya Tojo
Takashi Tanabe
Makoto Kobayashi
Takashi Tanabe
Makoto Kobayashi
Application Number:
JP2020523926A
Publication Date:
August 18, 2021
Filing Date:
June 07, 2018
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02B75/04; F02B75/32
Domestic Patent References:
| JP200663995A | ||||
| JP2005147376A | ||||
| JP201542849A | ||||
| JP201689991A |
Foreign References:
| WO2016035127A1 |
Attorney, Agent or Firm:
Hiromichi Kobayashi
Tomioka Kiyoshi
Tomioka Kiyoshi