Title:
多気筒エンジンの冷却構造
Document Type and Number:
Japanese Patent JP7206936
Kind Code:
B2
Abstract:
To provide a cooling structure of a multicylinder engine which can further effectively cool a cylinder bore wall.SOLUTION: A first peripheral wall, a step part 35b protruding to a cylinder side from a lower end of the first peripheral wall, and a second peripheral wall extending downward from an end part of the step part 35b at the cylinder side are arranged at least at a part of a peripheral wall of a spacer 30. When a portion opposing a connection portion 2f of cylinder bore walls 2e of cylinders 2 out of the first peripheral wall is defined to be an inter-bore correspondence part 139, and the first peripheral wall located in a center of the adjacent inter-bore correspondence part 139 is defined to be a bore center correspondence part 133c, the step part 35b is formed so that a protrusion amount d1 of a portion protruding to the cylinder side from the inter-bore correspondence part 139 becomes smaller than a protrusion amount d2 of a portion protruding to the cylinder side from the bore center correspondence part 133c.SELECTED DRAWING: Figure 12
Inventors:
Shinji Watanabe
▲高▼籏 達也
Yoshiaki Hayamizu
Keita Watanabe
Mikisuke Kawaguchi
▲高▼籏 達也
Yoshiaki Hayamizu
Keita Watanabe
Mikisuke Kawaguchi
Application Number:
JP2019006070A
Publication Date:
January 18, 2023
Filing Date:
January 17, 2019
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02F1/14; F01P3/02; F02F1/10
Domestic Patent References:
| JP2015108346A | ||||
| JP2016180314A | ||||
| JP2005120944A | ||||
| JP2011208527A | ||||
| JP2006242087A |
Attorney, Agent or Firm:
Masataka Kotani
Sato Ko
Sato Ko
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