| 摘要 |
PROBLEM TO BE SOLVED: To raise the temperature of cooling water around a cylinder bore to a appropriate value. SOLUTION: This engine cooling structure of small ship 1 has a propeller 30 driven with an engine 20, and cooling water supplied from the propeller 30 is supplied to the engine 20 for cooling. An engine cooling water passage K1 is installed to supply cooling water from a cylinder head 20b of the engine 20 and to exhaust from a cylinder body 2a for cooling.
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