MAHLE METAL LEVE S/A Patent applications |
Patent application number | Title | Published |
20150226150 | ENGINE PISTON AND A PROCESS FOR MAKING AN ENGINE PISTON - A piston for an internal combustion engine may include a substantially circular body composed of an aluminum containing base material defining a top portion having at least one cavity. At least one coating layer may be disposed on at least one area defined by at least one of the top portion and the at least one cavity. The at least one coating layer may include at least one chemical compound derived from a chemical reaction between the base material of the body and the at least one coating layer in response to friction generated by a dragging movement of a non-consumable rotary pin with the at least one coating layer. | 08-13-2015 |
20150176518 | CYLINDER FOR APPLICATION ON AN INTERNAL COMBUSTION ENGINE - A cylinder for an internal combustion engine may include a metallic cylinder body and an amorphous diamond-like hard carbon film disposed on an internal peripheral surface of the cylinder body. The amorphous diamond-like carbon film may include a roughness ranging from Rz 0.5 μm to Rz 4.0 μm. | 06-25-2015 |
20150076769 | PISTON RING - A piston ring for at least one of a piston of an internal combustion engine and a compressor may include at least one substantially annular metallic base having a nitrided layer. The base may include at least one chamfer and at least one outer surface that maintains contact with a layer of lubricating oil. The nitrided layer may exhibit a substantially constant thickness over at least one surface of the base and the at least one chamfer. The nitrided layer may include a nitrided diffusion layer that maintains direct contact with the layer of lubricating oil and has a residual tension ranging from +100 megapascal to −100 megapascal. | 03-19-2015 |
20150018254 | SLIDING ELEMENT FOR USE IN INTERNAL COMBUSTION ENGINE - A sliding element for use in an internal combustion engine may include a ferrous base having a peripheral sliding surface covered by a protective surface layer, the protective surface layer including at least one nitride applied via at least one of physical vapour deposition and a nitrided layer. The peripheral sliding surface may have a diamond like carbon (DLC) coating disposed thereon. The coating may include at least one of (a) one or more transition layers composed of WC1-x and (b) an adhesive layer of metallic chromium with a crystal structure. The coating may include an intermediate layer of metal DLC, the metal may be tungsten in a multilayer structure of a-C:H:W and a-C:H, and an outer layer of metal-free DLC. | 01-15-2015 |
20140323367 | ELEMENT COMPRISING AT LEAST ONE SLIDING SURFACE HAVING A COATING FOR USE IN AN INTERNAL COMBUSTION ENGINE OR A COMPRESSOR - 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. | 10-30-2014 |
20140318516 | CYLINDER LINER AND CASt IRON ALLOY - A cylinder liner for an internal combustion engine may include a cast iron alloy having a pearlitic structure with at least 70% of graphitization with spheroidal graphite morphology. The cast iron alloy may include at least 2.8% to 4.0% in weight of carbon; 1.8% to 3.5% in weight of silicon; 0.2% to 1.0% in weight of manganese; a maximum of 0.5% in weight of phosphorus; a maximum of 0.05% in weight of sulfur; a maximum of 0.5% in weight of vanadium; a maximum of 0.5% in weight of molybdenum; 0.2% to 1.5% in weight of nickel; a maximum of 0.3% in weight of tin; 0.005% to 0.06% in weight of magnesium. | 10-30-2014 |
20140245987 | ELEMENT PROVIDED WITH AT LEAST ONE SLIDE SURFACE FOR USE ON AN INTERNAL COMBUSTION ENGINE - The present invention relates to an element ( | 09-04-2014 |
20140220380 | SLIDE COMPONENT AND METHOD FOR PRODUCTION OF CLADDING ON A SUBSTRATE - A slide component, used in internal combustion engines, provided with a metal-based substrate material and a protective liner (R), with the slide component having at least two main elements, the first one composed by an element with high resistance to corrosion, and the second element providing increase of the resistance to wear and/or presenting lower friction than the substrate material, both of them covering at least one of the surfaces of the slide component. | 08-07-2014 |
20140102399 | ENGINE COMPONENT - 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 ( | 04-17-2014 |
20140035235 | THREE-PIECE OIL-CONTROL RING FOR AN INTERNAL COMBUSTION ENGINE - A three-piece oil control ring is provided for use in a piston groove of an internal combustion engine. The ring comprises a first annular segment and a second annular segment, associated to an expanding element. The expander has a substantially annular shape and comprises a first end facing the internal wall of the groove when the ring is mounted on the piston and a second opposite end. The ring further comprises an intermediate portion having at least one protrusion for association with the segments. Still further, the first end exhibits first thickness value (E | 02-06-2014 |
20140001113 | FUEL FILTER | 01-02-2014 |
20130221621 | PISTON RING - This invention refers to a piston ring, particularly planned for use in internal combustion engines or compressors, including at least one metallic base ( | 08-29-2013 |
20130167801 | OIL CONTROL RING OF FERROUS BODY FOR INTERNAL COMBUSTION ENGINES - An oil control ring for internal combustion engines, formed by a ferrous body having two external contact surfaces where each surface contains first and second extremity edges, two tilted faces where each tilted face starts from the respective second edge, a peripheral transversal section directed at the cylinder wall and an internal circular section directed at the side of the piston, where the projections of contact are directed, so that the respective tilted faces are turned facing the other, symmetrically, in a preferred concretization. The ring allows the maintenance of appropriate levels of contact pressure, even under reduced expanding loadings due to the use of profile that brings reduced contact of the ring with the cylinder interface. Additionally, it brings better dynamic stability and consequent distribution of the contact pressure of the set. It also makes it possible to apply superficial hardening treatments on oil rings with reduced contact surface. | 07-04-2013 |
20130049304 | NITRIDED PISTON RING RESISTANT TO THE PROPAGATION OF CRACKS - This invention refers to the solution of problem of spalling of the nitrided layer in piston rings for Flex-fuel engines, without jeopardizing the wear resistance, suggesting for such purpose a nitrided piston ring ( | 02-28-2013 |
20120248710 | PISTON RING AND PROCESS FOR MANUFACTURING A PISTON RING - The present invention refers to a piston ring, particularly for use in the piston channel of an internal combustion engine or a compressor, comprising at least a substantially ring-shaped metallic base ( | 10-04-2012 |
20120177309 | BEARING SHELL SEGMENT FOR INTERNAL COMBUSTION ENGINES OF VEHICLES - The present invention refers to a bearing shell segment ( | 07-12-2012 |
20120128284 | SLIDE BEARING, A MANUFACTURING PROCESS AND AN INTERNAL COMBUSTION ENGINE - It is described a slide bearing, particularly to constrain at least one shaft of an internal combustion engine, having a support structure or substrate ( | 05-24-2012 |
20120126488 | PISTON RING - There is described a piston ring, particularly devised for use in internal combustion engines or compressors, comprising at least a metallic base ( | 05-24-2012 |
20120112418 | OIL CONTROL RING WITH FERROUS BODY LESS THAN 2.0 MILLIMETERS HIGH FOR INTERNAL COMBUSTION ENGINES - There is described an oil control ring ( | 05-10-2012 |