Water jacket structure
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United States of America Patent
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Mar 23, 2021
Grant Date -
Nov 14, 2019
app pub date -
Apr 2, 2019
filing date -
May 9, 2018
priority date (Note) -
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Abstract
A water jacket structure includes: a lower water jacket that is provided inside a cylinder head installed at the top of a cylinder block; and an upper water jacket that communicates with the lower water jacket, and is provided on a side away from the cylinder block than the lower water jacket; wherein the lower water jacket includes, for each space between cylinders: a communication flow passage that communicates with the upper water jacket; and a reinforcing post formation part on which a reinforcing post is installed; wherein the reinforcing post formation part is located on a downstream side in a flowing direction of cooling water along a cylinder arrangement direction than the communication flow passage.
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