Title:
ENGINE
Document Type and Number:
WIPO Patent Application WO/2024/070361
Kind Code:
A1
Abstract:
Provided is an engine that does not have a shaft but does not cause a problem in lubrication of a cam (5a) of a cam shaft (5) when a cylinder block (2) is shared in an engine having different specifications distinguished according to the presence or absence of a prescribed rotation shaft (R). A cam shaft chamber front wall (2b) is provided with a front bearing hole (2d) of the cam shaft (5) and a front hole (2e) disposed under the front bearing hole (2d). A cam shaft chamber rear wall (2f) is provided with a rear hole (2g) coaxial with the front hole (2e). A cylinder block front wall (2a) is provided with an oil supply path (8) having a path exit (8a) formed on an inner circumferential surface of the front hole (2e). In the front hole (2e) of the cam shaft chamber front wall (2b), a fitting component (9) that covers the path exit (8a) of the oil supply path (8) is fitted. The fitting component (9) is provided with a cam shaft oil jet hole (9a) that jets engine oil (7) from the oil supply path (8) to the cam shaft (5).
Inventors:
FUJITA KENSUKE (JP)
OSO HIROKI (JP)
KOMAGATA RINA (JP)
TADA YOSHIHIRO (JP)
NAGAI NAOTARO (JP)
TAGASHIRA YUKI (JP)
OSO HIROKI (JP)
KOMAGATA RINA (JP)
TADA YOSHIHIRO (JP)
NAGAI NAOTARO (JP)
TAGASHIRA YUKI (JP)
Application Number:
PCT/JP2023/030515
Publication Date:
April 04, 2024
Filing Date:
August 24, 2023
Export Citation:
Assignee:
KUBOTA KK (JP)
International Classes:
F01M1/08; F01M1/06; F01M9/10
Foreign References:
| JPH0542617U | 1993-06-11 | |||
| JPS56117009U | 1981-09-08 | |||
| JPS6238406U | 1987-03-07 | |||
| JP2015068249A | 2015-04-13 |
Attorney, Agent or Firm:
SUZUE Shoji (JP)
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