Internal combustion engine, especially reciprocating internal combustion engine
AssigneeMan Truck & Bus AG
InventorsPeter Scharf, Stefan Schmidt
Life of this patent
Estimating the term…
Abstract
An internal combustion engine with at least one cylinder having a cylinder barrel that forms a guide for a piston associated with the cylinder. The cylinder barrel is only partially formed by a cylinder wall of a crankcase or of a cylinder liner fastened to the crankcase. The cylinder barrel, in a central region as seen in the cylinder axial direction, is formed by the cylinder wall. The cylinder wall, in an upper region of the cylinder barrel adjoining the central region and/or in a lower region adjoining the central region, has an encompassing recess into which is inserted a one-piece or multi-piece annular sliding element, the radially inner wall of which forms a part of the cylinder barrel.
Claims22
An internal combustion engine, comprising:
- a piston;
- a crankcase;
- at least one cylinder having a cylinder barrel, the cylinder barrel forms a guide for the piston associated with the cylinder, the cylinder barrel is only partially formed by a cylinder wall of the crankcase or a cylinder liner fastened to the crankcase;
- and
- one of a one-piece and a multi-piece annular sliding element,
- wherein the cylinder barrel, in a central region as seen in a cylinder axial direction, is formed by the cylinder wall, wherein the cylinder wall, in an upper region of the cylinder barrel adjoining the central region towards the top and/or in a lower region of the cylinder barrel adjoining the central region towards the bottom, has an encompassing recess, extending in a circumferential direction of the cylinder, into which is inserted in each case the one of the one-piece and multi-piece annular sliding element, a radially inner wall of which forms a part of the cylinder barrel;
- wherein the annular sliding element is coated on the inner side with a slide coating,
- wherein a single support layer is provided between the slide coating and a base material formed by aluminium, and
- wherein the single support layer is formed by a chemical nickel coating.
A cylinder liner set for an internal combustion engine comprising
- a cylinder liner forming a cylinder barrel that is only partially formed by a cylinder wall of the cylinder liner;
- a central region of the cylinder barrel, in as seen in a cylinder axial direction, is formed by the cylinder wall of the cylinder liner;
- an encompassing recess extending in the cylinder circumferential direction arranged in at least one of an upper region of the cylinder barrel adjoining the central region towards the top and in a lower region of the cylinder barrel adjoining the central region towards the bottom;
- and
- a one-piece or multi-piece annular sliding element configured to be inserted into a respective encompassing recess, wherein a radially inner wall of the inserted sliding element forms a part of the cylinder barrel;
- wherein the annular sliding element is coated on the inner side with a slide coating,
- wherein a single support layer is provided between the slide coating and a base material formed by aluminium, and
- wherein the single support layer is formed by a chemical nickel coating.
A vehicle, comprising, an internal combustion engine internal combustion engine, comprising:
- a piston;
- a crankcase;
- at least one cylinder having a cylinder barrel, the cylinder barrel forms a guide for the piston associated with the cylinder, the cylinder barrel is only partially formed by a cylinder wall of the crankcase or a cylinder liner fastened to the crankcase;
- and
- one of a one-piece and a multi-piece annular sliding element,
- wherein the cylinder barrel, in a central region as seen in the cylinder axial direction, is formed by the cylinder wall, wherein the cylinder wall, in an upper region of the cylinder barrel adjoining the central region towards the top and/or in a lower region of the cylinder barrel adjoining the central region towards the bottom, has an encompassing recess, extending in a circumferential direction of the cylinder, into which is inserted in each case the one of the one-piece and multi-piece annular sliding element, a radially inner wall of which forms a part of the cylinder barrel;
- wherein the annular sliding element is coated on the inner side with a slide coating,
- wherein a single support layer is provided between the slide coating and a base material formed by aluminium, and
- wherein the single support layer is formed by a chemical nickel coating.
Dependencies are inferred from the claim text.