Title:
INTERNAL COMBUSTION ENGINE
Document Type and Number:
WIPO Patent Application WO/2022/030219
Kind Code:
A1
Abstract:
[Problem] To suppress the generation of fretting between an inner circumferential surface of a valve arm shaft insertion hole in a valve support and an outer circumferential surface of a valve arm shaft. [Solution] The present invention comprises a lubricating oil passage 14b and a valve arm support oil-pouring hole 14e in a valve arm shaft 14 that is penetrated by a valve arm shaft insertion hole 13a provided to a valve arm support 13. The valve arm support oil-pouring hole 14e opens toward the inner circumferential surface of the valve arm shaft insertion hole 13a in the valve arm support 13.
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Inventors:
KASAZAKI SHINSUKE (JP)
UCHIBORI MASATAKA (JP)
UCHIBORI MASATAKA (JP)
Application Number:
PCT/JP2021/026759
Publication Date:
February 10, 2022
Filing Date:
July 16, 2021
Export Citation:
Assignee:
YANMAR HOLDINGS CO LTD (JP)
International Classes:
F01L1/18; F01M1/06
Foreign References:
| JPS59154811U | 1984-10-17 | |||
| CN202596826U | 2012-12-12 | |||
| JPS59196507U | 1984-12-27 | |||
| JPH03246307A | 1991-11-01 | |||
| JPS57114119U | 1982-07-15 | |||
| JPS5792816U | 1982-06-08 | |||
| US20200165941A1 | 2020-05-28 | |||
| CN202832701U | 2013-03-27 |
Attorney, Agent or Firm:
ARC PATENT ATTORNEYS' OFFICE (JP)
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