Cooling device for multi-cylinder engine
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United States of America Patent
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Apr 18, 2017
Grant Date -
Jan 14, 2016
app pub date -
Feb 7, 2014
filing date -
Feb 21, 2013
priority date (Note) -
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Abstract
A cylinder block (3) includes an inlet portion (36), a narrow portion (42), and an inclined portion (43). A cylinder head includes a head-side discharge portion. The inlet portion is formed on the first cylinder side of a cylinder array, and introduces coolant to a block-side water jacket (33). The narrow portion is formed in the vicinity of the inlet portion, and restricts the coolant introduced through the inlet portion from flowing to an intake-side channel (35) of the block-side water jacket. The inclined portion is formed in the vicinity of the inlet portion, and guides the coolant introduced through the inlet portion toward the head. The head-side discharge portion is formed on the fourth cylinder side of the cylinder array, and discharges the coolant from a head-side water jacket. A communication path for communicating between the water jackets is formed on the head side of the inclined portion.
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