Cylinder bore wall thermal insulator, internal combustion engine, and automobile
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United States of America Patent
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Sep 15, 2020
Grant Date -
Dec 20, 2018
app pub date -
Nov 10, 2016
filing date -
Nov 12, 2015
priority date (Note) -
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Abstract
A cylinder bore wall thermal it includes bore wall insulating sections provided for each of bore walls of cylinder bores and for insulating a wall surface on the cylinder bore side of the groove-like cooling water channel and a supporting section to which the bore wall insulating sections are framed. The bore wall insulating, sections include rubber members for covering the wall surface on the cylinder bore side of the groove-like cooling water channel, rear surface pressing members provided on rear surface sides of the rubber members and for pressing the entire rubber members toward the wall surface on the cylinder bore side of the groove-like cooling water channel from the rear side, and elastic members that urge the rear surface pressing members to press the rubber members toward the wall surface on the cylinder bore side of the groove-like cooling water channel.
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