TEMPERATURE MAINTAINING MEMBER FOR CYLINDER-BORE WALL

摘要

A temperature maintaining member for a cylinder-bore wall, said member being characterized by: the inclusion of a contact surface that is contacted to a wall surface on the groove-shaped cooling-fluid channel side of the cylinder-bore wall of an internal combustion engine cylinder block; the section that forms the contact surface comprising a rubber material or a resin material; and the ratio ((surface area of actual contact/surface area of the region forming the contact surface)×100) of the surface area in which there is actual contact with respect to the surface area of the region forming the contact surface is 1-50%. The present invention provides a temperature maintaining member for a cylinder-bore wall, said member being easy to install in the groove-shaped cooling-fluid channel.