Piston cylinder system and method
AssigneeInnio Waukesha Gas Engines Inc.
InventorsPhillip J. Knoebel, Jeffrey S. Jagusch
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Abstract
A system includes a block having a cylinder, a cylinder head, a cylinder liner, and a gasket. The cylinder liner includes a recess formed into a top surface of the cylinder liner. The cylinder liner is configured to line the cylinder about a piston. The gasket is disposed in the recess between the cylinder head and the cylinder liner. The recess includes a bottom surface. At least a portion of the bottom surface includes a tapered portion and a depth of the tapered portion increases along an inward radial direction of the cylinder liner.
Claims20
A system, comprising:
- a cylinder liner configured to mount in a cylinder of a piston-cylinder assembly, wherein the cylinder liner comprises:
- a liner portion extending circumferentially about and axially along a central axis;
- and
- a top portion extending circumferentially about the central axis and coupled to the liner portion, wherein the top portion comprises:
- a first surface facing axially upward relative to the central axis, wherein the first surface is configured to contact a bottom surface of a gasket;
- and
- a second surface facing axially upward relative to the central axis, wherein the second surface is disposed radially inward relative to the first surface, the second surface is axially recessed relative to the first surface, and the second surface is configured to not contact the bottom surface of the gasket to define a gap.
A method, comprising:
- providing a cylinder liner configured to mount in a cylinder of a piston-cylinder assembly, wherein the cylinder liner comprises:
- a liner portion extending circumferentially about and axially along a central axis;
- and
- a top portion extending circumferentially about the central axis and coupled to the liner portion, wherein the top portion comprises:
- a first surface facing axially upward relative to the central axis, wherein the first surface is configured to contact a bottom surface of a gasket;
- and
- a second surface facing axially upward relative to the central axis, wherein the second surface is disposed radially inward relative to the first surface, the second surface is axially recessed relative to the first surface, and the second surface is configured to not contact the bottom surface of the gasket to define a gap.
A method, comprising:
- forming a second surface axially recessed relative to a first surface of a top portion of a cylinder liner configured to mount in a cylinder of a piston-cylinder assembly, wherein the cylinder liner extends circumferentially about a central axis and comprises a liner portion that extends axially along the central axis away from the top portion, wherein the top surface has:
- the first surface facing axially upward relative to the central axis, wherein the first surface is configured to contact a bottom surface of a gasket;
- and
- the second surface facing axially upward relative to the central axis, wherein the second surface is disposed radially inward relative to the first surface, and the second surface is configured to not contact the bottom surface of the gasket to define a gap.
Dependencies are inferred from the claim text.