Cooling structure of multi-cylinder engine
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United States of America Patent
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Oct 31, 2017
Grant Date -
Dec 3, 2015
app pub date -
May 27, 2015
filing date -
May 30, 2014
priority date (Note) -
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Abstract
A cooling structure of a multi-cylinder engine is provided. The engine has cylinders and a cylinder block formed with a cylinder bore wall. The cooling structure includes a water jacket formed in the cylinder block and defined by the cylinder bore wall and a jacket outer surface surrounding the cylinder bore wall, a water pump for feeding a coolant to the water jacket, an introduction portion formed in the cylinder block, having an introduction port opening to the jacket outer surface, and for introducing the coolant to the water jacket, and a spacer member accommodated inside the water jacket. The spacer member has a spacer main body surrounding the cylinder bore wall, and a dividing wall protruding toward the jacket outer surface from an outer circumferential surface of the spacer main body. The dividing wall extends in a circumferential direction at a position opposing the introduction port.
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