ENGINE AND METHOD OF MANUFACTURING CYLINDER BLOCK OF ENGINE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Jan 4, 2018
app pub date -
Jul 3, 2017
filing date -
Jul 4, 2016
priority date (Note) -
Published
status (Latency Note)
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Importance

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Abstract
An engine includes a cylinder block including a cylinder hole, a crank shaft as an offset crank, and a connecting rod that connects the piston and the crank shaft. An inclined surface is provided on an entire circumference of a crank-shaft-side opening edge of one end of the cylinder hole. When viewed in the axial direction of the crank shaft, a boundary line between the inclined surface and the cylinder hole extends towards the other end of the cylinder hole as it extends toward an offset side on which the crank shaft is offset from the center axis of the cylinder hole. The offset crank engine has the entire circumference of the crank-shaft-side opening edge of the cylinder hole chamfered without any bad influence on the sliding surface and posture of the piston to avoid interference between the crank-shaft-side opening edge of the cylinder hole and the connecting rod.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
YAMAHA HATSUDOKI KABUSHIKI KAISHA | IWATA-SHI SHIZUOKA 438-8501 |
International Classification(s)

- 2017 Application Filing Year
- F02F Class
- 350 Applications Filed
- 239 Patents Issued To-Date
- 68.29 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
SAKURAI, Kenichi | Shizuoka, JP | 31 | 253 |
# of filed Patents : 31 Total Citations : 253 |
Cited Art Landscape
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Patent Citation Ranking
- 1 Citation Count
- F02F Class
- 30.67 % this patent is cited more than
- 7 Age
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