269results about How to "Extend oil change intervals" patented technology

The invention discloses energy-saving diesel engine oil with ultra-long oil change mileage and a preparation method thereof. The energy-saving diesel engine oil is prepared from, by mass, 10-18% of diesel engine oil complexing agent, 0.3-0.8% of anti-wear agent, 0.5-1.5% of antioxidant, 3-8% of viscosity index improver, 0.002-0.005% of anti-foaming agent and the balance synthesized basic oil. The energy-saving diesel engine oil has high wear resistance and friction reduction performance, high oxidation stability and high thermal stability, and the oil change cycle can be effectively prolonged; by means of the anti-wear agent without sulfur and phosphorus, the wear resistance and friction reduction performance are effectively improved, and the oxidation of an oil product can not be accelerated; alkyl multi-benzyl toluene is added to basic oil, and through the good complexing effect of alkyl multi-benzyl toluene and antioxidant, the antioxidant performance of the oil product is improved, the use cycle of the oil product is greatly prolonged, and the ultra-long oil change aim is achieved.

The invention provides a vehicle engine oil additive and engine oil. The additive comprises the following components: 15 to 34 weight percent of nano WS2 powder, 0 to 24 weight percent of nano MoS2 powder, 20 to 20.5 weight percent of dispersant, 0 to 0.5 weight percent of antioxidant, 0 to 1 weight percent of metal passivant and the balance of base oil, wherein the kinematic viscosity of the base oil at 40 DEG C is 70 to 190mm2/s, and the kinematic viscosity of the base oil at 100 DEG C is 12 to 20mm2/s. The engine oil of the invention comprises 5 to 20 weight percent of additive and 80 to 95 weight percent of petrolic oil or comprises 15 to 25 weight percent of additive and 75 to 85 weight percent of diesel engine oil. The engine oil can improve the service life of engine, reduce oil consumption and has obvious energy-saving and emission-reducing effects and other effects.

The invention relates to lubricating oil containing surface modified carbon nanomaterials and a preparation method thereof, in particular to lubricating oil containing graphene, carbon nanotubes and nanocarbon fibers and a preparation method thereof. Graphene, carbon nanotubes and carbon nanofibers are coated with polydopamine and grafted with long-carbon-chain paraffins correspondingly on surfaceto obtain corresponding modified carbon nanomaterials. The modified carbon nanomaterials, base oil, and other lubricant functional additives are mixed in proportion to obtain the lubricating oil containing the surface modified carbon nanomaterials. The lubricating oil containing the surface modified carbon nanomaterials and the preparation method thereof solve problems of stability and dispersibility, produces ball effects and supporting effects, and further produce a solid-liquid dual-function lubrication mechanism and a stable porous structure, and remarkably improve performance of the lubricating oil.

The invention discloses a gasoline engine lubricating coil composition and a preparation method thereof. The gasoline engine lubricating coil composition comprises the following components in percentby weight: (A) 0.1 to 6.0 percent of an ashless dispersing agent, (B) 0.1 to 8.0 percent of a clearing agent, (C) 0.01 to 1.5 percent of oil-soluble or dispersible oil stability boron-containing compound, (D) 0.003 to 0.5 percent of oil-soluble or dispersible oil stability molybdenum-containing compound, (E) 0.02 to 3.2 percent of zinc dialkyl dithiophosphate, (F) 0.01 to 3.0 percent of an antioxidant and (G) lubricating oil base oil with a main amount, wherein the boron molybdenum mass ratio of the component (C) to the component (D) ranges from 1:5 to 10:1. The blended gasoline engine oil composition contains all of the boron-containing compound, the molybdenum-containing compound and the zinc dialkyl dithiophosphate, completely exerts the synergistic effect between the additives, improves the anti-oxidation property, the anti-wear and friction-reducing properties and the extreme pressure property of the lubricating oil composition and reduces the ash content and the thionazin contentof the lubricating oil composition.

The invention relates to a processing system aiming at the dilution problem of engine oil. The processing system comprises a heat exchanger, the engine oil, an insulating tube, an oil pump, an oil pressure sensor, an oil temperature sensor, an oil way switch and a vent pipe used for recycling fuel. When the engine is in operation, if oil pressure valve is below limiting value, an exhaust manifold is used to heat the insulating tube. The engine oil of a control pipeline and the fuel in an oil sump are used to exchange heat to lead bulk temperature to the boiling point of the fuel, thus separating the fuel from lubricant. The separated fuel goes through ventilation system and enters burning system again.

The invention relates to a solid-liquid phase composite internal combustion engine oil additive and a preparation method thereof. The additive consists of a solid lubricating material, a liquid medium and other auxiliary materials. The auxiliary materials consist of a dispersant, an oxidation and corrosion inhibitor, a detergent and a stable dispersant, which are processed into the solid-liquid phase composite internal combustion engine oil additive with a stable dispersion system by high-speed shearing emulsification, ultrasonic oscillation and sanding dispersion. The additive is added into a finished product of the internal combustion engine oil according to a certain proportion. During usage, a liquid-solid composite lubricating film is formed on the surface of a friction pair of an internal combustion engine. The composite lubricating film can improve the lubrication status of the surface of the friction pair of the internal combustion engine so as to reduce the friction and relieve the abrasion. Meanwhile, the energy is saved and the air leakage quantity of the engine is reduced. The air tightness is improved and the power property is enhanced. The service life of the engine is prolonged.

The invention relates to the technical field of lubricating oil, and particularly provides environment-friendly fully synthetic diesel engine oil which is composed of the following components in partsby weight: 77.2 parts of base oil, 5 parts of a detergent, 3 parts of an ashless dispersant, 1.2 parts of an antirust agent, 0.7 parts of an antioxidant, 4.4 parts of an extreme pressure agent, 0.5 parts of a friction modifier, 7.7 parts of a viscosity index improver, 0.3 parts of a pour point depressant, 0.3 parts of an anti-foaming agent, and 50 ppm of a demulsifying agent. The base oil is prepared by mixing mPAO8 which is catalytically synthesized by adopting metallocene, deeply hydrogenated and optimized straight-chain third-class mineral oil 250N and phthalate, and the mass ratio of mPAO8 to third-class mineral oil 250N to phthalate is 2: 2: 1. The low-viscosity diesel engine oil has the advantages that the base oil is blended according to a scientific proportion, the low-temperaturefluidity of the oil product is effectively improved, the oxidation resistance of the oil product is improved, the oil change period of the oil product is prolonged, the pollution degree of waste oilto the environment is reduced, the energy loss of the low-viscosity diesel engine oil is reduced, and the transmission efficiency of an engine is improved.

The present invention relates to a synthetic compressor lubricating oil composition and a production method thereof. The synthetic compressor lubricating oil composition is prepared by mixing the following raw materials, by weight, 80-90 parts of a liquid A and 10-20 parts of a liquid B, wherein the liquid A is prepared by mixing one or a plurality of poly alpha-olefin synthetic base oil with different viscosities, and the liquid B is prepared by mixing the following additives, by weight, 5.0-15.0 parts of an ester, 0.05-2 parts of an antioxidant, 0.01-2 parts of a rust inhibitor, 0.01-0.5 part of a metal deactivator, 0.5-3 parts of an extreme pressure wear resistance agent, 0.005-0.05 part of anti-emulsification agent, and 0.003-0.01 part of an anti-foaming agent. According to the present invention, stability is high, an oil change period is long, compressor energy consumption can be substantially reduced, a service life of the compressor can be prolonged, significant economic and social benefits are provided, and environmental pollution can not be caused.

The invention discloses a graphene-containing vegetable lubricant. The graphene-containing vegetable lubricant is prepared from the following raw materials: castor oil, modified castor oil, liquid graphene, trimethyl citrate, N,N-dimethylacetamide, modified nano cerium vanadium oxide, modified sodium carboxymethylcellulose, sucrose ester, an organic molybdenum compound, dodecyl selenium, 4-hydroxy-4-methyl-2-pentanone, benzotriazole, polymethyl methacrylate, 1-butyl-3-vinyl imidazole hexafluoroantimonate, polyurethane, cyclohexane and an organic anti-aging agent. The graphene-containing vegetable lubricant disclosed by the invention has the advantages that the castor oil and other additives are combined, an environment-friendly vegetable lubricant is prepared, the balance of properties is achieved by controlling the types and quantity of the additives, the vegetable lubricant has better oxidation resistance and self-cleaning capability and also has good lubricating property, viscosity-temperature characteristic, low temperature fluidity, low volatility, corrosion resistance, anti-foam property and anti-emulsifying property, and the overall performance is good.

A purpose of the present invention is to provide a novel environmental protection non-sulfur-phosphorus metal magnetic lubricating oil additive with characteristics of simple production method, low cost, good oil solubility and high yield, and a preparation method thereof. The novel metal magnetic lubricating oil additive is characterized in that the additive is prepared from mixed amide, molybdenum oxide, tungsten oxide, hydroxyethyl ethylene diamine and ammonia water according to a weight ratio of 100:8.5-10:8.5-10:10-15:10-15, wherein the mixed amide is prepared through carrying out a reaction of tall oil, diethanolamine and methyl oleate. The additive is an oil-soluble metal magnetic tungsten-molybdenum-nitrogen complex, is a friction modifier, an anti-wear agent and an antioxidant for internal combustion engine motor lubricating oil, has a significant oil saving effect, and does not contain sulfur and phosphorus so as to further provide advantages of energy saving and environmental protection.

The invention relates to a solid-liquid phase composite internal combustion engine oil. According to the theory of solid-liquid phase composite lubrication technology, and aimed at the requirements of the performance, characteristics, working conditions and the like of an internal combustion engine on a lubrication system, the invention provides a technical scheme for the solid-liquid phase composite internal combustion engine oil composition and a preparation method thereof. The components of the oil include solid lubricant material, liquid medium and other auxiliary materials-dispersing agent, oxidation and corrosion inhibitor, detergent additive, internal combustion engine oil complexing agent, defoaming agent and stabilizing and dispersing agent, which are processed into the solid-liquid phase composite internal combustion engine oil with a stable dispersion system by high-speed shearing emulsification, ultrasonic oscillation and sanding dispersion.

The invention relates to an anti-wear self-repairing material, especially to a graphene-based high-molecular nanometer alloy anti-wear self-repairing material and a preparation method and application thereof, belonging to the field of high-molecular materials. A graphene-based high-molecular nanometer alloy anti-wear self-repairing agent prepared in the invention realizes the breakthrough that heavy-load anti-wear anti-attrition effect almost reaches the level of zero wearing and overcomes the two world-famous problems of proneness to agglomeration and precipitation and incapability of better performing extreme-pressure anti-wear effect of a metal nanometer anti-wear material in fluid lubrication products; the agent provides core technological guarantee for development fluid lubrication technology and mechanical equipment towards impact resistance, heavy load, high carrying capacity, miniaturization, low viscosity, low energy consumption and high reliability; and the agent provides superhigh engine performance and protection effect, guarantees economic performance of vehicle combustion and has superstrong anti-wear and lubrication performance, metal deactivation performance and the performance of self-repairing of metal wearing.

A diesel engine operating on a fuel containing from about 5 to about 100 wt. % biodiesel components is lubricated with a lubricating oil composition including a major amount of oil of lubricating viscosity, and a minor amount of at least one highly grafted, multi-functional olefin copolymer. The olefin copolymer is made by reacting an acylating agent with an olefin copolymer having a number average molecular weight greater than about 1,000 in the present of a free radical initiator to provide an acylated olefin copolymer having a degree of grafting (DOG) of the acylating agent on the olefin copolymer of at least 0.5 wt.%, and reacting the acylated olefin copolymer with an amine to provide the highly grafted, multi-functional olefin copolymer. As used, the highly grafted, multi-functional olefin copolymer is effective to reduce a viscosity increase in the lubricating oil composition for the engine.

The invention relates to a biodegradable lubricating oil. The biodegradable lubricating oil is composed of base oil, an antioxidant, a corrosion inhibitor, an antifoaming agent, a metal deactivator, a demulsifier, an anti-wear agent and copper oxide powder, wherein the base oil is composed of synthetic base oil poly(alpha-olefin), synthetic base oil synthetic fat and synthetic base oil polyether; the antioxidant is anyone or a mixture of diarylamine and sterically hindered phenol, wherein the weight ratio of diarylamine to sterically hindered phenol in the mixture is 1:1; the corrosion inhibitor is a salt formed through using fatty acid and amine; the antifoaming agent is polydimethylsiloxane; the metal deactivator is a toluyltriazole derivative; the demulsifier is polyalkoxyphenol; the anti-wear agent is sulfurated triphenyl phosphate; and the copper oxide powder is nanometer powder, and the particle granularity of the powder is 25-35nm. The biodegradable lubricating oil has the advantages of simple preparation method, scientific and environmentally-friendly preparation scheme, degradability, high work temperature range, good lubricating characteristic, long service life, good protection to parts, high comprehensive performances, reasonable cost, realization of above 90% biodegradation of waste oil, extremely low gas discharge, and obvious energy saving effect.

The present invention provides an antiwear energy-saving agent containing refined mineral oil, zinc dialkyl dithiophosphate and deactivator for lubricating oil, it possesses excellent functions of reducing friction, reducing wear, resisting rust, resisting corrosion and resisting oxidation, and has strong cleaning dispersing power and good extreme pressure resistance and long-acting lubricating property and excellent compatibility with lubricant. This invention also provides its preparation method and application to lubricating oil and soaking field.

The invention provides hub bearing lubricating grease for an electric automobile. The hub bearing lubricating grease for the electric automobile is prepared from water and the following components inparts by weight: 80 to 95 parts of synthetic oil, 8 to 15 parts of higher fatty acid, 1 to 3 parts of binary acid, 1.0 to 4.5 parts of lithium hydroxide monohydrate, 0.5 to 2.5 parts of zinc dialkyl dithiophosphate, 0.5 to 2.5 parts of organic molybdenum salt, 0.02 to 1.5 parts of composite antioxidant and 0.05 to 1.5 parts of corrosion inhibitor, wherein the composite antioxidant comprises an amine antioxidant and a phenolic antioxidant. The lubricating grease prepared from the synthetic oil, the higher fatty acid, the binary acid, the lithium hydroxide monohydrate, the organic molybdenum salt, the composite antioxidant, the zinc dialkyl dithiophosphate and the corrosion inhibitor thiadiazole derivate through specific proportion can generate the synergistic effect; and the prepared lubricating grease has excellent high-temperature and low-temperature lubricating property, oxidation resistance and anti-wear extreme pressure property.

The invention relates to a lubricating oil composition for diesel engines, belonging to the technical field of addition of lubricating oil. The invention aims to provide a long-oil-change-period low-emission lubricating oil composition for diesel engines. In order to solve the technical problem, the technical scheme is as follows: the lubricating oil composition for diesel engines comprises the following components in percentage by weight: 0.4-2.5% of hindered phenol antioxidant, 0.9-2.0% of amine antioxidant, 0.8-3.0% of antioxygen anti-friction multifunctional additive, 0.2-1.5% of metal anti-friction agent, 4.0-15.0% of complexing agent and the balance of base oil. The lubricating oil composition for diesel engines has the advantages of long oil change period, low volatility and excellent stability, and can be widely used in the field of diesel engine lubrication.

The invention relates to an energy-saving environment-friendly gasoline engine lubricating oil which comprises base oil and additives. The base oil is completely-synthetic poly-alpha-olefin base oil. The additives are composed of the following components in percentage by mass: 75-87% of base oil, 3-6% of viscosity index improver, 5-9% of composite detergent, 3-6% of composite dispersing agent, 1.5-3% of composite antioxidation and anticorrosion additive, 0.06-0.1% of metal passivator, 0.05-0.3% of rust inhibitor and 0.02-0.05% of antifoaming agent. The lubricating oil is composed of the completely-synthetic poly-alpha-olefin base oil, composite antioxidation and anticorrosion additive, composite metal detergent, composite ashless dispersant, metal passivator, rust inhibitor, antifoaming agent and viscosity index improver. The lubricating oil implements energy saving and long oil change period, reduces the discharge of waste oil, waste gas and particles, has higher biodegradability than the traditional lubricating oil, prolongs the fuel economy and service life of the engine, and inhibits the oil sludge and carbon deposit in the engine from generation.

The invention discloses a Ni-P alloy nano-powder lubricant additive prepared from nickel and phosphorus recycled from electroless nickel plating waste liquid, and a using method thereof in different friction occasions, wherein Ni-P powder is subjected to in-situ dispersion and recovered from electroless nickel plating waste liquid, dispersed again and then prepared into the lubricant additive through certain steps, together with metal chemical friction modifiers, detergent-dispersant, oxygen corrosion-resistant agents, auxiliary performance regulator, stabilizer and base oil. The lubricant additive has the advantages of good suspension stability, capability of greatly reducing equipment friction and wear, greatly reducing the frequency of equipment maintenance and parts replacement and prolonging equipment lifespan and overhaul time limit, as well as good effect of saving energy and protecting environment. The lubricant additive can be widely used in gasoline/diesel internal combustion engines, general fluid machinery, mechanical chemical sealing pieces, transmission gearboxes and other occasions, can realize the recycling of nickel and phosphorus in the electroless nickel plating waste liquid with high added value in order to change pollutants into useful things, and realizes the coordination and unification of economic, environmental and social benefits.