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US 12,044,191 B2Granted
Cylinder liner for internal combustion engine and method for installing the same
AssigneesCummins Inc., Achates Power, Inc.
InventorDavid J. Eckroth
Life of this patent
Estimating the term…
Abstract
An internal combustion engine with an engine block with at least one cylinder cavity housing a cylinder liner. The cylinder liner includes at least one aperture in a wall of the cylinder liner that is aligned with one of an intake port or an exhaust port in the engine block.
Claims20
An internal combustion engine comprising:
- an engine block with at least one cylinder cavity in the engine block, wherein the at least one cylinder cavity extends axially along a longitudinal axis, and the engine block includes at least one port that opens into the cylinder cavity;
- and
- a cylinder liner extending axially along the cylinder cavity and in contact with the engine block, the cylinder liner including a wall and at least one aperture that extends between an inner surface of the wall and an outer surface of the wall, wherein at the inner surface of the wall the at least one aperture is aligned with a projected opening of the at least one port, and at the outer surface of the wall the at least one aperture is offset outwardly from the opening of the at least one port into the cylinder cavity.
A cylinder liner for an internal combustion engine, the liner comprising:
- a cylindrical body including a first end, a second end opposite the first end, and a wall, the wall extending along a longitudinal axis from the first end to the opposite second end of the body, the wall having an inner surface and an outer surface;
- and
- at least one aperture extending between the inner surface and the outer surface, the at least one aperture being defined by a leading end surface and an opposite trailing end surface spaced from one another along the longitudinal axis, the at least one aperture further being defined by opposite side surfaces extending between the leading end surface and the trailing end surface, wherein at least one of the leading end surface and the trailing end surface is obliquely oriented to the inner surface and the outer surface of the wall.
A method for installing a cylinder liner in an internal combustion engine having an engine block with a cylinder cavity, the method comprising:
- inserting the cylinder liner into the cylinder cavity to initially align an aperture in a wall of the cylinder liner with a port in the cylinder block;
- inserting an alignment tool through the aperture of the cylinder liner to finally align the aperture and the port;
- and
- securing the cylinder liner in the cylinder cavity to the engine block while the aperture of the cylinder liner is finally aligned with the port of the engine block.
1 more element
Dependencies are inferred from the claim text.