Abstract: A cylinder liner for an internal combustion engine may include a cylinder. The cylinder may include a first cylindrical portion coupled to a second cylindrical portion. The second portion may be positioned towards a region of combustion in relation to the first portion and define at least in part a combustion chamber. The first portion may include a length at least one half of a length of the cylinder. At least one of the first portion and the second portion may be composed of a ferrous alloy.

Abstract: An element with at least one slide surface with a coating for use on an internal combustion engine may include a base of a metallic alloy and at least one inner surface provided with a hard ceramic coating generated by physical vapor deposition. The element may include a porosity with a rate lower than 2 percent by volume, a Vickers hardness ranging from 1500 to 3000HV, and a compressive inner tension lower than 500 MPa.

Abstract: The present invention relates to an element (1) that works sliding, of an internal combustion engine and/or a compressor that undergoes friction and receives a coating of chrome nitride having an equiaxial morphology, with low porosity (lower than 1%) and with a crystallographic orientation predominantly (111), maintaining some reticulate in the orientation (200), so as to improve its resistance to wear and its toughness, prolonging the useful life of the element (1) that works sliding.

Abstract: The present invention has the objective of solving the problems encountered in coating engine components (engine blocks or sleeves, either fixed or movable) having at least one cylindrical cavity and composed mainly by iron or aluminum, providing them with a coating (3) that is subdivided into three different layers, which are deposited onto the metallic substrate (1), which are first sub-layer (21) comprising at least 80% silicon deposited onto the substrate (1) with the function of providing interface with good adhesion between the substrate (1) and the subsequent sub-layers, which contain hydrogenated amorphous carbon, second sub-layer (22) of transition comprising a percentage of silicon and of hydrogenated amorphous carbon (a-C:H:Si) and, finally, on the working surface, third sub-layer (23) having a pure composition of hydrogenated amorphous carbon (a-C:H), wherein such coating (3) is generated by the hollow cathode effect (HCE) by plasma-enhanced chemical vapor deposition (PECVD).

Abstract: It is described a slide bearing, particularly to constrain at least one shaft of an internal combustion engine, having a support structure or substrate (2) to which a lining (3) is applied by a Cold Spray or Cold Gas Dynamic Spray process, the lining being comprised of at least one composite material comprising at least one alloy powder with ceramic particles and anti-seizure material.