Technical features of multi-function positioning pin hole

Technical characteristics:

1. A multifunctional positioning pin hole applied to the cylinder block of an engine, characterized in that it comprises a positioning pin hole section and a lubricating oil hole section in series, one end of the positioning pin hole section penetrates the surface of the cylinder block, and the other end faces the cylinder block Extension; the lubricating oil hole section extends from the end surface of the cylinder body of the positioning pin hole section to the cylinder body until it is connected to the lubricating oil passage in the cylinder body. 2. The multifunctional positioning pin hole according to claim 1, wherein the outer end surface of the positioning pin hole section is a bowl-shaped structure. 3. The multifunctional positioning pin hole according to claim 2, further comprising a bowl-shaped plug which is connected with the bowl-shaped structure on the outer end surface of the positioning pin hole section in an interference fit.

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