Importance

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Abstract

A reinforced piston assembly provides a piston having a corrugated insert supporting an outer piston layer. The corrugated insert can include lateral, concentric or radial corrugations and can include regular or irregular corrugation spacing. The corrugated insert in some embodiments forms a circular disk and can include a plurality of insert holes defined in the disk. A laminated connecting rod having at least two rod layers is pivotally attached to the piston in some embodiments. The laminated connecting rod provides a first end having a diverging section with first and second rod prongs each forming a wrist pin socket. A wrist pin can extend through each socket, and a sleeve is disposed about the wrist pin between the wrist pin sockets. Additionally, one or more flanges can extend from the opposite end of the connecting rod, and a base cap including one or more flange recesses is positioned on the connecting rod for securing the connecting rod to a crankshaft.

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First Claim