| 摘要 |
PURPOSE: An end portion of a turbulence chamber is formed in a round shape by attaching an arc shape plate to inside of a water pump cover, thereby a coolant is circulated to water jacket efficiently. CONSTITUTION: A turbulence chamber is formed to induce a coolant pumped from a water pump to a water jacket of a cylinder block. An arc shaped plate(40) is attached to an inner side of a linear portion of a water pump cover(30) to make an end portion of the turbulence chamber roundly. The coolant pumped from a water pump(16) is flowed to a water jacket(13) of a cylinder block(11) smoothly.
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