Caterpillar Inc.

Aaron Claver

Donald P Clark

Trent A Simpson

Kegan Jon Luick

Thomas Parnell

Jon Shumaker

Kegan Luick

Remanufacturing a used cylinder liner includes receiving a used cylinder liner having a fillet relieved of residual compressive stress via service in an engine, and compressing a material substrate of the cylinder liner forming a fatigue sensitive fillet, such that a non-uniform profile of the fillet is reshaped via plastic deformation of the material substrate. Residual compressive stress is restored to the fillet at least in part via the plastic deformation. A mask and used cylinder liner assembly for processing the used cylinder liner during remanufacturing is also disclosed.

Method of remanufacturing used cylinder liners and mask and used cylinder liner assembly

A repaired piston includes a crown composed of base and welding filler materials, and having an annular rim extending around a combustion bowl. A finite number of repaired defects are within the annular rim, and have a spatial distribution limited by a multidirectional spacing parameter, and a size distribution limited by a unidirectional sizing parameter.

Repaired pistons and collection thereof

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Congerville, IL, United States of America

Aaron Claver