Cummins Engine Company, Inc.

Cummins Intellectual Property, Inc.

Peter E Jackson

Andrew Guy Kitchen

Michael T Stanley

Benjamin Carl Myers

An interface between an engine block and a cylinder head is provided. The interface includes a ferrule that accommodates relative movement between the cylinder head and the engine block while maintaining sealing of fluid passages that extend between the cylinder head and the engine block. The interface thus forms a fluid passage seal assembly.

Engine with fluid passage seal assembly

A replaceable cylinder liner for an internal combustion engine having a liner stop positioned within a cylinder cavity at a point intermediate the extremes of travel of a piston disposed for reciprocating travel within the cylinder cavity. The liner includes a hollow cylinder body having an inner end portion and an outer end portion. The liner further includes a liner support for axially supporting the hollow cylindrical body within the cylinder cavity with the liner support including a liner stop engaging surface for engaging the liner stop when the liner is placed within the cylinder cavity. Formed in an outside surface of the outer end portion between the end boss and liner support is an annular recess extending over substantially an entire length of the outer end portion to form a liner coolant passage when the liner is positioned in the cylinder cavity. Additionally, provided within the recess is a plurality of thickened regions or lands circumferentially spaced about an outside surface of the outer end portion. Each of the lands frictionally engages the inside surface of the cylinder cavity in that the lands include an effective outside diameter which slightly greater than an inside diameter of corresponding portions of the cylinder cavity into which the plurality of the thickened regions are press fitted.

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Columbus, IN, United States of America

Peter E Jackson