Cylinder liner, apparatus for extracting a cylinder liner and method for extracting a cylinder liner

A system, comprising:

• a cylinder liner, comprising
• a cylindrical portion having an outer diameter and an inner diameter, wherein the inner diameter at least partly defines a cylinder wall for a reciprocating piston;
• a circumferential recess at the inner diameter of the cylindrical portion, wherein the circumferential recess comprises a diameter larger than the inner diameter of the cylinder wall;
• at least one groove in the circumferential recess;
• and
• a removable scraper ring configured to fit into the circumferential recess and to cover the at least one groove;
• and
• a tool configured to extract the cylinder liner from a machine, wherein the tool comprises:
• a central segment;
• and
• a plurality of outer segments, wherein the central segment is configured to move in an axial direction to transfer a force to the plurality of outer segments to drive the plurality of outer segments in a radial direction into the at least one groove.

A system, comprising:

• a tool configured to extract a cylinder liner from a machine, wherein the tool comprises:
• a central segment;
• and
• a plurality of outer segments, wherein the central segment is configured to move in an axial direction to transfer a force to the plurality of outer segments to drive the plurality of outer segments in a radial direction into at least one groove in the cylinder liner.