Cummins Intellectual Property, Inc.

Cummins Inc.

Dan E Richardson

Joseph A Worthington

Ian W McGiffen

Keith A Gunter

Mark G Luehrmann

Terry M Shaw

David Paul Genter

Jeffrey K Colvill

Dave Genter

Douglas C Doup

Stephen W Brooks

Systems, apparatuses, and methods disclosed provide for estimating the remaining life for an engine. The method includes determining a correlation between a quantity of burned fuel and a level of wear of a piston ring for an engine. The level of wear of the piston ring is indicative of a remaining life of the engine. The method also includes determining a current quantity of burned fuel by the engine, and determining the remaining life of the engine based on the correlation and the current quantity of burned fuel by the engine.

Tool to predict engine life using ring wear and fuel burned

A cylinder liner sealing arrangement for an internal combustion engine including a cylinder block having cylinder bores, a cylinder head, a cylinder liner within each cylinder bore and a circumferential cut-out formed in the upper and outer surfaces of the cylinder liner. A circular sealing ring is positioned in the circumferential cut-out with the sealing ring contacting at least the cylinder block and the cylinder liner to form a coolant seal therebetween. The sealing ring includes a seal enhancing configuration formed on at least an outer circumferential surface of the sealing ring with the seal enhancing configuration including at least one of an arcuate portion of a 'D' ring seal or a plurality of circumferentially extending ribs. Replacing the cylinder liner seal includes removing the cylinder head while maintaining the position of the cylinder liner within the respective cylinder bore, removing an upper liner seal from within the circumferential cut-out while maintaining the position of the cylinder liner within the cylinder bore, positioning a replacement sealing ring in the circumferential cut-out while maintaining the position of the cylinder liner within the cylinder bore and replacing the cylinder head on the cylinder block of the engine.

Cylinder liner seal arrangement and method of providing the same

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Columbus, IN, United States of America

Dan E Richardson