Title:
VALVE GEAR FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2017072121
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To improve a closing failure of a valve in association with the warp of a rocker shaft.SOLUTION: A valve gear for an internal combustion engine includes a first intermediate arm 20a and a first rocker arm 22a laid between a first cam part 16a and a first valve 12a, and a second intermediate arm 20b and a second rocker arm 22b laid between a second cam part 16b and a second valve 12b. The intermediate arms 20a, 20b are rockably supported by a rocker shaft 18. Hydraulic lash adjusters 36a, 36b are provided for rockably supporting the rocker arms 22a, 22b, respectively. In the axial direction of the rocker shaft 18, a distance between a bearing 26 closest to a first transmission part 32a and the first transmission part 32a is shorter than a distance between a bearing 26 closest to a first pressure receiving part 28a and the first pressure receiving part 28a, and a distance between a bearing 26 closest to a second transmission part 32b and the second transmission part 32b is similarly shorter than a distance between a bearing 26 closest to a second pressure receiving part 28b and the second pressure receiving part 28b.SELECTED DRAWING: Figure 3
Inventors:
MIYASATO YOSHIAKI
MURATA HIROKI
KIDOOKA AKIO
MURATA HIROKI
KIDOOKA AKIO
Application Number:
JP2016099738A
Publication Date:
April 13, 2017
Filing Date:
May 18, 2016
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F01L1/18; F01L13/00
Domestic Patent References:
| JP2008196497A | 2008-08-28 | |||
| JP2010019126A | 2010-01-28 |
Attorney, Agent or Firm:
Hideki Takahashi
Mamoru Takada
Hidekazu Onishi
Mamoru Takada
Hidekazu Onishi