Gm Global Technolgoy Operations, Inc.

Bala Krishna Sela

Lokesh Choudhary

Tiruttani Munikamal

Paul J Boone

Kevin E Eckerle

Ramachandra K Rao

Govindu Echarla

A number of variations which may include a product including a combustion engine cylinder block having a first snap channel having first multi-radii fillet profile, and methods of making the same.

Block snap channel having multi-radii fillet profile

An apparatus for a motor vehicle engine block made of aluminum includes an insert having a first surface and a second surface spaced apart from the first surface, the first surface being substantially flat, and a plurality of projections extending from the second surface, the plurality of projections being inserted into a portion of the engine block to secure the insert to the portion of the engine block. The first surface of the insert is configured to mate with another component, other than the engine block, made of steel or cast iron to avoid fatigue fretting of the aluminum engine block.

Apparatus and method to avoid fretting fatigue in an engine block

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Rochester Hills, MI, United States of America

Bala Krishna Sela