Cummins Intellectual Property, Inc.

Cummins Inc.

Keith A Gunter

Joseph A Worthington

Ian W McGiffen

David Paul Genter

Mark G Luehrmann

Dan E Richardson

Terry M Shaw

Jason Robert Griffin

Stephen Sunadh Gidla

Gregory S Franks

Michael T Stanley

Alex Edward Priestley

Ryan Nelson Knight

Benjamin Dodman

Timothy Andrew Solzak

John Mathias Winter, Ii

Ryan Vincent Larcom

Edwin B Hopkins, Iii

Lucy Anne Baker

Rodney Lee Steele

Adrian Constantin Ciobota

Dave Genter

Keith Edward Barber

A cylinder liner and piston configuration for an internal combustion engine includes features for improving the cooling of the piston. Specific ratios and dimensions are included to optimize the features of the cylinder liner and piston. Also included are unique piston features that assist in achieving some of the specified dimensions and ratios.

Engine arrangement for enhanced cooling

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

An improved cooling fluid passage configuration provides for uniformity of cooling about the entire periphery of a cylinder liner of an internal combustion engine in addition to improved cooling by increasing the flow in an upper water jacket of a split water jacket design. The cooling fluid passage configuration also provides a reduced pressure drop between a cylinder liner cooling fluid inlet and a cylinder head cooling fluid outlet when compared to conventional designs with a single head feed line, permitting use of a smaller cooling fluid pump and leading to increased efficiency of the engine.

Internal combustion engine having improved cooling arrangement

Engine

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Long Buckby, United Kingdom

Keith A Gunter