Engine
AssigneeYanmar Holdings Co., Ltd.
InventorsTakehiro Noda, Yoshimitsu Matsuura, Hiroshi Kashiwabara
Life of this patent
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Abstract
An exemplary engine is a V-type engine including a first bank and a second bank arranged side by side in a left-right direction, the engine including: a first cooling liquid passage and a second cooling liquid passage disposed between the first bank and the second bank and extending in a front-rear direction; and an exhaust passage disposed between the first bank and the second bank and extending in a front-rear direction and disposed below the first cooling liquid passage and the second cooling liquid passage.
Claims6
An engine that is a V-type engine comprising a first bank and a second bank arranged side by side in a left-right direction, the engine comprising:
- a first cooling liquid passage and a second cooling liquid passage disposed between the first bank and the second bank and extending in a front-rear direction;
- and
- an exhaust manifold passage disposed inside a space formed between the first bank and the second bank and extending in the front-rear direction and disposed below the first cooling liquid passage and the second cooling liquid passage, passage, wherein
- the first bank, the first cooling liquid passage, the exhaust manifold passage, the second cooling liquid passage, and the second bank are arranged in the stated order from one side to another side in the left-right direction,
- at least one of the first cooling liquid passage and the second cooling liquid passage includes a first wall portion extending downwards;
- and
- the cooling liquid passage including the first wall portion includes a second wall portion extending from a lower end portion of the first wall portion toward a closer one of the first bank and the second bank.
An engine that is a V-type engine comprising a first bank and a second bank arranged side by side in a left-right direction, the engine comprising:
- a first cooling liquid passage and a second cooling liquid passage disposed between the first bank and the second bank and extending in a front-rear direction,
- an exhaust manifold passage disposed between the first bank and the second bank and extending in the front-rear direction and disposed below the first cooling liquid passage and the second cooling liquid passage, wherein
- the first bank, the first cooling liquid passage, the exhaust manifold passage, the second cooling liquid passage, and the second bank are arranged in the stated order from one side to another side in the left-right direction,
- at least one of the first cooling liquid passage and the second cooling liquid passage includes a first wall portion extending downwards;
- and
- the cooling liquid passage including the first wall portion includes a second wall portion extending from a lower end portion of the first wall portion toward a closer one of the first bank and the second bank.
An engine that is a V-type engine comprising a first bank and a second bank arranged side by side in a left-right direction, the engine comprising:
- a first cooling liquid passage and a second cooling liquid passage disposed between the first bank and the second bank and extending in a front-rear direction;
- and
- an exhaust manifold passage disposed between the first bank and the second bank and extending in the front-rear direction and disposed below the first cooling liquid passage and the second cooling liquid passage, wherein
- the exhaust manifold passage includes a first exhaust passage section and a second exhaust passage section arranged side by side in the left-right direction,
- the first exhaust passage section and the second exhaust passage section are formed by connecting a plurality of portions of the exhaust manifold passage by corresponding connecting portions, and
- the first exhaust passage section and the second exhaust passage section are disposed with a position of the corresponding connecting portion of the first exhaust passage section and a position of the corresponding connecting portion of the second exhaust passage section being offset in the front-rear direction.
Dependencies are inferred from the claim text.