Abstract:
The present disclosure describes compositions and a method for forming such compositions. More specifically, inorganic microparticles and surface modified silica nanoparticles are mixed to form a composition. The surface modified silica nanoparticles are present in the composition in an amount sufficient to decrease the coefficient of friction relative to a comparable composition that is free of surface modified silica nanoparticles.
Abstract:
An antifriction and wear-resistant compound for mechanical groups, such as speed gears, differential groups and the like, comprising a solid phase and a liquid phase wherein said solid phase is in suspension and is characterised in that it comprises at least one from among the following elements: silicon, silica, silicon nitride, graphite, diamond, copper, nickel, zinc, aluminium and alumina, all present in nanopowder form.
Abstract:
A combination nano and microparticle treatment for engines enhances fuel efficiency and life duration and reduces exhaust emissions. The nanoparticles are chosen from a class of hard materials, preferably alumina, silica, ceria, titania, diamond, cubic boron nitride, and molybdenum oxide. The microparticles are chosen from a class of materials of layered structures, preferably graphite, hexagonal boron nitride, magnesium silicates (talc) and molybdenum disulphide. The nano-micro combination can be chosen from the same materials. This group of materials includes zinc oxide, copper oxide, molybdenum oxide, graphite, talc, and hexagonal boron nitride. The ratio of nano to micro in the proposed combination varies with the engine characteristics and driving conditions. A laser synthesis method can be used to disperse nanoparticles in engine oil or other compatible medium. The nano and microparticle combination when used in engine oil can effect surface morphology changes such as smoothening and polishing of engine wear surfaces, improvement in coefficient of friction, and fuel efficiency enhancement up to 35% in a variety of vehicles (cars and trucks) under actual road conditions, and reduction in exhaust emissions up to 90%.
Abstract:
Disclosed is a treatment liquid for improving formability of aluminum alloy materials which forms a coating film when applied onto the surface of an aluminum alloy material and dried thereon. The coating film covering the aluminum alloy material exhibits excellent lubricating effects when the coated aluminum alloy material is subjected to a forming process. Specifically disclosed is a treatment liquid for improving formability of aluminum alloy materials, which contains a water-soluble urethane resin, a water-soluble polyester resin, a water-soluble acrylic resin, a water-soluble epoxy resin, and one or more of resins obtained by modifying those organic resins. The treatment liquid may further contain, in addition to the above-mentioned resins, a silane coupling agent, a colloidal silica, a lubricant, a metal alkoxide, a heat resistance-imparting agent and the like.
Abstract:
A lubrication system having an oil filter modified to replace or supplement the performance of lubricant additives that may be used within an internal combustion engine to increase the performance of a lubricant is described. The formulation of the lubricant is changed in accordance with the chemicals placed in the oil filter. For example, when the oil filter contains a strong base, the lubricant concentration of detergent will decrease, in some cases to zero, while the dispersant concentration in the lubricant will increase. The dispersant is the ideal weak base to neutralize combustion acid at the piston ring zone, carry the resultant weak base- combustion acid complex to the strong base in the oil filter, undergo ion exchange with the strong base, immobilize the acid in the oil filter and recycle the dispersant back to the piston ring zone for reuse as an acid neutralization agent. The reduction or elimination of detergent from the lubricant will reduce the fouling of the emission filter and of deposit formation on engine parts such as the piston. The oil filter may also contain an additive which is slowly released into the lubricant. For example, a ZnDDP anti-wear additive may be slowly released from the oil filter to the lubricant. Because the ZnDDP has low molecular weight alkyl groups it has limited solubility in the lubricant. The rate of release is limited by the equilibrium concentration of the additive in the lubricant. As a result, a relatively constant concentration of the additive may be maintained in the lubricant. The resultant closed system allows the oil drain intervals to be significantly extended.
Abstract:
The lubricants of the present invention comprise: 1) at least one vegetable oil selected from the group comprising: natural vegetable oil, synthetic vegetable oil, genetically modified vegetable oil, and mixtures thereof: 2) at least one FTGTL synthetic base oil having a sulfur content equal to or less than 0.03 percent, saturates equal to or greater than 90 percent, and a viscosity index equal to or greater than 120: and 3) at least one antioxidant.
Abstract:
An additive composition containing an antioxidant and a dispersant that reduces the soot content in lubricating oil in an engine and/or the emission of an engine. Further, a process for employing the additive composition to decrease the amount of soot in the lubricating oil of an engine and/or decrease the emissions from an engine.
Abstract:
The invention relates to stabilized foam compositions for lubricating compositions and their use in lubricating compositions, particularly metal working fluids.
Abstract:
Magnetorheological devices, including damping devices, rotary devices, and haptic systems constructed with said devices are disclosed. The devices contain dry magnetically-responsive particles, or MR fluids containing the magnetically responsive particles. The magnetically soft particles characterized by a single process yield population of atomized particles having a cumulative 10 %, 50 % and 90 % by volume, fraction within specified size, i.e., D 10 of from 2 up to and including a D 10 of 5 µm, a D 50 8 µm up to and including a D 50 of 15 µm, a D 90 of 25 µm up to and including a D 90 of 40 µm, and characterized by a least squares regression of log normal particles size against cumulative volume % fraction of greater than or equal to 0.77.