Title:
VALVE TIMING CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2020/162016
Kind Code:
A1
Abstract:
The present invention is provided with: a reduction gear 13 that rotates a driven member 9 relatively to a sprocket 1 through rotation of an eccentric shaft 21; an electric motor 12 that has a motor shaft 17 for rotating the eccentric shaft via an Oldham's coupling 20; and a cam bolt 14 that links the driven member to a cam shaft 2. The cam bolt has, formed therein so as to penetrate in the internal axis direction thereof, an oil passage hole 35 that is connected with an oil supply passage 34 for supplying lubricating oil to the inside of the internal combustion engine. The oil passage hole has first and second oil holes 38, 39 having small diameters on the downstream side of a main passage hole 37a having a large diameter. The Oldham's coupling and/or the reduction gear is directly lubricated by the lubricating oil discharged from the two oil holes.
Inventors:
YAMANAKA ATSUSHI (JP)
ARIGA KENJI (JP)
ARIGA KENJI (JP)
Application Number:
PCT/JP2019/047363
Publication Date:
August 13, 2020
Filing Date:
December 04, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F01M1/06; F01L1/352; F01M9/10
Domestic Patent References:
| WO2018092390A1 | 2018-05-24 |
Foreign References:
| JPH062512A | 1994-01-11 | |||
| JPH02241914A | 1990-09-26 | |||
| US20180238200A1 | 2018-08-23 | |||
| JP2010090889A | 2010-04-22 | |||
| US20180283231A1 | 2018-10-04 | |||
| JP2009293576A | 2009-12-17 |
Attorney, Agent or Firm:
KOBAYASHI, Hiromichi et al. (JP)
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