A cylinder block and a method for forming the sliding surface of a cylinder block of an internal combustion engine

摘要

A cylinder block for an internal combustion engine has at least one cylinder provided with a cylinder bore. Said cylinder bore comprises a first bore constituting a honing release surface and a second bore of smaller diameter than the first bore and being coaxially aligned with said first bore. The second bore further comprises a plating layer being honing treated for slidingly receiving a reciprocable piston, whereby said first and second bores are separated by a transitional portion. Within said cylinder bore said plating layer is applied up to at least the border between said second bore and said transitional portion.