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Title:
ACTUATOR FOR VARIABLE COMPRESSION RATIO MECHANISM OF INTERNAL COMBUSTION ENGINE AND VARIABLE COMPRESSION RATIO DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2018/168619
Kind Code:
A1
Abstract:
The actuator is provided with: an arm link 13 for changing the orientation of a variable compression ratio mechanism of an internal combustion engine; a second control shaft 11 fastened to the arm link 13; and a housing 20 having a first bearing hole 301a for supporting the second control shaft 11. The housing 20 has a lubrication oil supply passage 202 which opens to a pressure-receiving area where the first bearing hole 301a receives a surface pressure from the second control shaft 11 during the expansion stroke of the internal combustion engine.

Inventors:
NAGAI, Kishiro (4-7-1, Onna, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
SUDA, Yoshihiro (4-7-1, Onna, Atsugi-sh, Kanagawa 10, 〒2438510, JP)
Application Number:
JP2018/008895
Publication Date:
September 20, 2018
Filing Date:
March 08, 2018
Export Citation:
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Assignee:
HITACHI AUTOMOTIVE SYSTEMS, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
International Classes:
F02B75/04; F02B75/32; F02D15/02; F16C7/06
Domestic Patent References:
WO2016024308A12016-02-18
Foreign References:
JP2017025856A2017-02-02
JP2017032070A2017-02-09
JP2002115571A2002-04-19
JP2013011206A2013-01-17
JPH06346913A1994-12-20
Attorney, Agent or Firm:
ONO, Shinjiro et al. (YUASA AND HARA, Section 206 New Ohtemachi Bldg., 2-1, Ohtemachi 2-chome, Chiyoda-k, Tokyo 04, 〒1000004, JP)
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