Abstract: The invention relates to a water-based biodegradable and non-toxic functional fluid for mechanical drives, preferably for use in steam engines. The object of providing such functional fluids for use in mechanical drives, particularly for the hydrodynamic lubrication of plain bearings, preferably for crankshafts of superheated steam engines, having customary bearing play which is not overly precise, is achieved. It should be capable of being used in closed power plant systems also at sump temperatures higher than 120° C., e.g. in the crankcase under a crank shaft, and should be water-based or water-dilutable. According to the invention, this is achieved by addition of a low percentage of polyaspartic acid to water or to water/glycol mixtures, preferably polyaspartic acid having a molar mass of from greater than 1 000 to 10 000 g/mol being used.

Abstract: The invention relates to a water-based biodegradable and non-toxic functional fluid for mechanical drives, preferably for use in steam engines. The object of providing such functional fluids for use in mechanical drives, particularly for the hydrodynamic lubrication of plain bearings, preferably for crankshafts of superheated steam engines, having customary bearing play which is not overly precise, is achieved. It should be capable of being used in closed power plant systems also at sump temperatures higher than 120° C., e.g. in the crankcase under a crank shaft, and should be water-based or water-dilutable. According to the invention, this is achieved by addition of a low percentage of polyaspartic acid to water or to water/glycol mixtures, preferably polyaspartic acid having a molar mass of from greater than 1,000 to 10,000 g/mol being used.

Abstract: The invention relates to a water-based biodegradable and non-toxic functional fluid for mechanical drives, preferably for use in steam engines. The object of providing such functional fluids for use in mechanical drives, particularly for the hydrodynamic lubrication of plain bearings, preferably for crankshafts of superheated steam engines, having customary bearing play which is not overly precise, is achieved. It should be capable of being used in closed power plant systems also at sump temperatures higher than 120° C., e.g. in the crankcase under a crank shaft, and should be water-based or water-dilutable. According to the invention, this is achieved by addition of a low percentage of polyaspartic acid to water or to water/glycol mixtures, preferably polyaspartic acid having a molar mass of from greater than 1 000 to 10 000 g/mol being used.

Abstract: This invention relates to a system, especially adapted for high-power motors, comprising at least one rotor (1a; 1b) and means (4a, 4b; 5a, 5b) comprising active elements (7, 8) capable of rotating the rotor(s) (1a; 1b) by their synchronized deformation; said rotating means of the rotor(s) comprising at least one petal (6) comprising a hot top (11), characterized in that the material of each hot top (11) is such that it has a thermal mass capacity (Cp22C) of greater than 0.35 [J/g/K], and/or the material of each rotor (1a; 1b) is such that it has a thermal capacity of greater than 2 [J/cm3/K].

Abstract: This invention relates to a system, especially adapted for high-power motors, comprising at least one rotor (1a; 1b) and means (4a, 4b; 5a, 5b) comprising active elements (7, 8) capable of rotating the rotor(s) (1a; 1b) by their synchronized deformation; said rotating means of the rotor(s) comprising at least one petal (6) comprising a hot top (11), characterized in that the material of each hot top (11) is such that it has a thermal mass capacity (Cp22C) of greater than 0.35 [J/g/K], and/or the material of each rotor (1a; 1b) is such that it has a thermal capacity of greater than 2 [J/cm3/K].

Abstract: The invention relates to a water-based biodegradable functional fluid for mechanical drives, preferably for use in steam engines. The aim of the invention is to create functional fluids for use in mechanical drives, particularly for hydrodynamically lubricating plain bearings, preferably for crankshafts of superheated steam engines having customary non-overly precise bearing play. The inventive fluids should be able to be used in closed power pack systems also in the existence of sump temperatures exceeding 120 ° C., e.g. in the lubricant pan located under a crank drive and be water-based or able to be diluted with water. According to the invention, this is achieved by a percentually low addition of polyaspartic acid to water or to water-glycol mixtures, whereby polyaspartic acid having a molar mass greater than 1,000 and up to 10,000 g/mol is preferably used.

Abstract: The invention relates to pairs of sliding elements having one carbon-based sliding element.

Abstract: In carbon reinforcements, in particular when used in carbon-fiber reinforced materials, sulfur-complex forming substances are chemically adsorbed, at least in part, at potential oxidation locations of an hexagonal carbon lattice to provide internal protection against oxidation.

Abstract: A hinge assembly for a vehicle track, conveyor chain or the like has at least one bearing lacquer coated onto at least one of the mutually contacting surfaces of the pin or bushing and having a binder or carrier of the polyamide/polyimide type or of a molecular structure with alternating amide and imide monomers. A filler of molybdenum disulfide, molybdenum oxides and/or hydroxides and graphite is provided in the carrier or binder. Other lubrication is not required and the bearing lacquer has a long life.

Abstract: In carbon reinforcements, in particular when used in carbon-fiber reinforced materials, sulfur-complex forming substances are chemically adsorbed, at least in part, at potential oxidation locations of an hexagonal carbon lattice to provide internal protection against oxidation.

Abstract: The operational fluid according to the invention is well suited for the lifelong lubrication and cooling of combustion engines. It comprises as the basic fluid a polyalkylene glycol produced from ethylene oxide and propylene oxide and an additive mixture comprising a) 0.012-1.0 percent by weight of a reaction product of diphenyl amine and 2,4,4-trimethyl pentene; b) 0.01-1.0 percent by weight of a pentaerythritol partially or completely esterified with an alkyl-substituted p-hydroxy propionic acid; c) 0.01-1.0 percent by weight of a mono- or di-(C4-C8) alkyl phosphoric acid (C10-C15) alkyl amide; d) 0.01-1.0 percent by weight of triphenyl thiophosphate; e) 0.01-0.1 percent by weight of a tolutriazol amino-methylated with a straight-chain or branched alkyl group with 2-10 carbon atoms, and/or f) 0.01-0.1 percent by weight of 1H-benzotriazol.

Abstract: A tribo-system comprises a first structural component part and a second structural component part which are in dry frictional contact with one another, each through a surface layer. For this purpose, the surface layer of the first structural component part is based on oxides or mixed oxides in monoclinic, triclinic or tetragonal crystal structure formed from MeO.sub.6 octahedrons with planar oxygen defects.

Abstract: A tribo-system comprises a first structural component part and a second structural component part which are in dry frictional contact with one another, each through a surface layer. For this purpose, the surface layer of the first structural component part is based on oxides or mixed oxides in monoclinic, triclinic or tetragonal crystal structure formed from MeO.sub.6 octahedrons with planar oxygen defects.

Abstract: A track system for a track vehicle which has a crawler chain and a driving sprocket wheel. The chain has links each of which has a pin assembly with a bushing or one piece bolt the outer periphery of which at least is composed of a material consisting of Si.sub.3 N.sub.4 silicon nitride or a zirconium oxide with at most 15% of sintering additives. The driving sprocket wheel can have segments formed with the teeth and bolted to a disk, the segments being composed of a material consisting of Si.sub.3 N.sub.4 silicon nitride or zirconium oxide with less than 15% of sintering additives.