5465 results about "Motor oil" patented technology

A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/α-olefin interpolymer. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block copolymer has a number of unique characteristics disclosed here. Such block copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc.

An engine lubricant formulated as a complete crankcase motor oil or additive concentrate composed of a combination of chemical constituents including a base oil selected from a synthetic oil, a mineral oil or semi-synthetic base oil (hydrogenated oil) or combination thereof, an oil soluble molybdenum additive, a dispersant inhibitor containing zinc dithiophosphate, and viscosity index improvers and one or more seal swelling agents to lubricate the engine and recondition the seals of new and/or high mileage engines. Addition of a polyalphaolefin and/or one or more esters such as a diester or polyolester may also be utilized therein. The lubricant may be formulated as a complete engine oil crankcase lubricant, or concentrated into an additive for addition to conventional mineral oil based engine oil, synthetic engine oils, or blends thereof in an effective amount of up to 30 percent volume percent, typically from 20 to 25 percent by volume.

A method by which contaminant (soot) content in Diesel engine oil is determined using electrical conductivity measurements of the Diesel oil at a high frequency, or by which contaminant (soot and/or water and/or anitfreeze) content is determined using the ratio of electrical conductivity measurements of the Diesel oil at a high frequency to the electrical conductivity measurements of the Diesel oil at a low frequency. Both the conductivity ratio and the high frequency conductivity are essentially independent of the brand of oil. High frequency is defined to be above 2 MHz whereas low frequency is defined to be D.C. to about 1 kHz.

A plastic article or plastic container reclamation process if provided in which plastic containers are divided into relatively large pieces, then washed, agitated and separated using an aqueous solvent to remove residual materials. The residual materials such as motor oil are reclaimed for reuse and the aqueous solvent is regenerated for reuse in the process. Residual materials such as dirt, labels and adhesives from the plastic containers is recovered for recycling or passed to waste for disposal or reuse.

The present invention provides a working fluid composition for a refrigerator machine comprising a base oil comprising an ether-based compound, a carbodiimide compound, and an unsaturated fluorinated hydrocarbon refrigerant. The present invention also provides a refrigerating machine oil comprising a base oil containing an ether-based compound and a carbodiimide compound, the refrigerating machine oil being used together with an unsaturated fluorinated hydrocarbon refrigerant.

A thermal management system for a gas turbine powerplant with an engine oil line and an engine fuel line incorporates a heat transfer control module that includes a reversible heat pump with a heat pump compressor for circulating working fluid in forward and reverse directions through a working fluid line of the heat pump. The heat control module also includes a first heat exchanger having a heat exchange path for the working fluid between the compressor and a heat pump expansion valve and another heat exchange path for the engine oil. A second heat exchanger has a heat exchange path for the working fluid between the compressor and the expansion valve and another heat exchange path for the engine fuel. The heat pump can be operated in forward or reverse directions depending on whether heat is to be transferred from the engine oil or the fuel to the heat pump working fluid. In another embodiment an engine oil reservoir located between the first heat exchanger and the engine collects the oil before it is introduced to the engine and thus acts as a heat capacitor for the system.

A downhole pumping system includes a downhole pump that is coupled to a downhole motor. The downhole motor includes a motor protector that utilizes one or more retractable and extensible bellows, instead of an elastomeric bag, to accommodate motor oil contraction and expansion.

The invention provides engine oil of a long-service life diesel engine, which comprises basic oil and additives, wherein the additives comprise the following ingredients in percentage by weight: 4.0 percent to 6.5 percent of detergent additives, 3.0 percent to 5.5 percent of dispersing agents, 0.2 percent to 0.8 percent of corrosion inhibitors, 0.1 percent to 0.2 percent of antioxidizers, 0.01 percent to 0.15 percent of nanometer wear resistance agents, 5.0 percent to 9.0 percent of viscosity index improving agents, 0.3 percent to 0.5 percent of pour point reducers and the balance of basic oil, wherein the basic oil is semisynthesis composite basic oil consisting of API type III basic oil accounting for 45 percent to 65 percent of the mass percentage of the basic oil and 35 percent to 55 percent of poly-alpha olefin synthesis oil. The engine oil of the diesel engine provided by the invention can adapt to the requirements of various diesel engines, the performance meets the quality requirements of the engine oil of the diesel engine API CH-4, the engine can be ensured to be always in a good lubricating state, the service life of the engine oil is long, the environment pollution is little, and in addition, the cost is low.

The invention discloses energy-efficient long-life gasoline engine oil prepared from the following components: synthetic base oil, a composite antioxygen, a metal cleaning agent, an ashless dispersant, a nano-level friction improver, a viscosity improver and a pour point reducer. The gasoline engine oil provided by the invention has the following advantages: requirements of API SM, ILSAC GF-4 and SAEJ300 are met and the service life is long; the complete synthetic base oil features low pour point, high viscosity index, good economy of fuel, degradability and reduced harm to the ecological environment; the phenol type antioxygen is combined with ZDDP, the anti-oxygen and antifriction properties are good and the catalyst poisoning in a tail gas processing unit is prevented; the acid neutralization capacity is good, the cleaning dispersibility is good and the oil sludge and carbon deposit are prevented from being generated; and the nano-level friction improver is added, the frictional factor is low, and the oil film features high carrying capacity and can automatically repair abraded surface and lengthen the service life of the engine.

A compressor oil recovery device for use in removing oil from compressors typically found on condensing units used in air conditioning or refrigeration applications is disclosed. The device consists of a canister with a lid that contains a vacuum port, a suction port, a drain port, and a vacuum release port. A vacuum hose is connected at one end to the vacuum port and at the other end to an electric vacuum pump. A suction hose is connected at one end to the suction port and at the other end to the gauge manifold of a compressor. Upon activating the vacuum pump, a vacuum is created that draws the compressor oil into the canister where it is collected for disposal.

The invention provides engine oil of a long-service life gasoline engine, which comprises basic oil and additives, wherein the additives comprise the following ingredients in percentage by weight: 4.0 percent to 6.0 percent of dispersing agents, 2.5 percent to 4.5 percent of detergent additives, 0.2 percent to 0.8 percent of corrosion inhibitors, 0.1 percent to 0.2 percent of antioxidizers, 0.01 percent to 0.15 percent of nanometer copper wear resistance agents, 5.0 percent to 9.0 percent of viscosity index improving agents, 0.3 percent to 0.5 percent of pour point reducers and the balance ofbasic oil, wherein the basic oil is semisynthesis composite basic oil consisting of API type III basic oil accounting for 40 percent to 65 percent of the mass percentage of the basic oil and 35 percent to 60 percent of poly-alpha olefin synthesis oil. The engine oil can meet the requirements of high-temperature high-speed automobile and motorcycle engines, and can ensure that the engines are always in a good lubricating state, in addition, the service life is long, and the cost is low.

The invention discloses a universal oil composition for environment-friendly energy-saving engineering machinery. The universal oil composition comprises the following components according to mass percent: 85%-90% of composite base oil and 15%-10% of other additives. The universal oil composition for the environment-friendly energy-saving engineering machinery adopts a poly-alpha-olefin (PAO) and dioctyl sebacate composition as the base oil, is good in comprehensive performance, can replace diesel engine oil, hydraulic oil, gear oil, hydraulic transmission fluid and other various unit oil used in the engineering machinery, achieves multiple purposes, increases the power of a diesel engine, improves the reliability, the fuel economy and the low-temperature start performance of the diesel engine and the working efficiency and the precision of a hydraulic system, and effectively prolongs the service life and the oil draining period of the hydraulic system, the diesel engine, a gear system, a hydraulic transmission system and other various units.

The invention relates to engine oil suitable for multiple fuels, and belongs to the field of engine oil for an automobile. The engine oil comprises the following raw materials in mass portion: 33 to 36 portions of base oil 150SN, 22 to 24 portions of base oil VHVI H350 (type III), 15 to 17 portions of poly alpha-alkene, 2 to 4 portions of ester oil of C8 to C10, 11 to 13 portions of ethylene-propylene copolymer the molecular weight of which is between 63,000 and 108,000 as viscosity index improver, 0.4 to 1.2 portions of zinc dialkyl dithiophosphate as additive for resisting oxidation and corrosion as well as abrasion, 1.1 to 4.8 portions of alkyl phenol calcium and 1.9 to 2.5 portions of calcium sulfonate as detergent, 3.8 to 5.0 portions of polyisobutene succimide as dispersant, and 0.001 to 0.003 portion of methyl silicone oil as antifoaming agent. The engine oil meets performance requirements of automobile and engine manufacturers at home and abroad on gasoline engine oil and sedan diesel engine oil.

The invention relates to an air compressor oil composition, which comprises the following components in percentage by weight: 1.5 to 5 percent of antioxidant, 0.03 to 0.5 percent of ashless antirust agent, 0.01 to 0.5 percent of metal deactivator, 0.01 to 1 percent of ashless antiwear agent, 0.001 to 0.01 percent of anti-foaming agent and the balance of base oil, wherein the base oil is prepared by mixing poly alpha-olefin with ester oil in a weight ratio of 7-9:3-1 or mixing hydrogenated oil with the ester oil in the weight ratio of 7-9:3-1; and the antioxidant is the mixture of dialkylaniline, high-molecular thioether phenol and 4,4-methylenedi(2,6-di-tert-butyl phenol) in the weight ratio of 1:0.1-10:0.1-10. The air compressor oil composition has the advantages of excellent high-temperature anti-oxidation stability, anti-carbon deposition property, abrasive resistance, obvious energy-saving effect, good cost performance and low cost.

An engine control system and an engine control method are disclosed wherein a combustible component quantity of intake air, reflecting combustible components in a crankcase of an engine, is calculated on the basis of a deviation between basic injection quantity for a target rotational speed to be attained and an actual injection quantity during operation to perform idling stabilizing control. A ratio of the combustible components mixed to engine oil is calculated on the basis of the combustible component quantity of intake air and a temperature of engine oil. During a status of the engine with a given temperature of engine oil and the mixing ratio of the combustible components in engine oil, a fuel injection affect eliminating operation is executed.

The invention discloses a graphene oxide modifying method and application thereof in engine lubricating oil. The method comprises the following steps: firstly preparing graphene oxide (GO) by adopting an improved Hummers process, and modifying the graphene oxide with long-chain fatty amine and organic silicon to obtain modified graphene derivative; and secondly, taking the modified graphene oxide as A), and compounding a friction modifier with a metal cleaning agent B), a metal corrosion inhibitor C), a complex antioxidant, an anti-foaming agent, a viscosity index improver, synthetic ester base oil and base oil, so that the engine lubricating oil added with the graphene oxide modifying agent is obtained. The method disclosed by the invention has the advantages that abrasion of an engine is greatly reduced by adding the graphene oxide modifying agent, so that oil draining period of automobile engine oil is prolonged to 50000 kilometers from 5000 kilometers, and fuel oil can be saved by 7-10% in the aspect of fuel economy.

Sensorless fuel level and oil change indicators are provided in a range extender for an electric vehicle. The range extender includes an engine, and an electric generating device driven by the engine to generate electric power supplied to the vehicle. The fuel level is calculated based on the generated power. The oil change indicator indicates that the oil should be changed when the number of engine rotor revolutions exceeds a threshold value. The electric generating device may be a dynamoelectric machine coupled to the engine by a shaft to operate as a motor for starting the engine. In response to prescribed engine conditions, the dynamoelectric machine is switched to operate as a generator driven by the engine to generate the electric energy.

The invention discloses a low temperature type wind power generator accelerator oil lubricating system being able to start up under the condition of low temperature. The lubricant in the system enters an electric pump and a mechanical pump after being heated by a heater; the outlets for the electric pump and the mechanical pump are both connected to an oil filtration device; the oil filtration device is communicated with the accelerator via a pipeline system configured with an oil cooling device; the pipeline system comprises a normative open passage and a startup passage connected in parallel; the oil cooling device is positioned on the normative open passage. The normative open passage and the startup passage can switch automatically via a startup one-way valve and a normative open one-way valve; an ultra low pressure one-way valve on the normative open passage is able to provide accident protection for a high-speed axle of the accelerator; a pressure sensor can control the motor of the electric pump via a control circuit, so that the electric pump can supply oil to the system on demand. Therefore, the invention, which enhances the reliability and service life of equipment, can be best applied for the wind power generator system in harsh cold region.

Engine lubricating oils used under sustained high load conditions, such as high speed diesel or stationary natural gas engines, can have their deposit control properties enhanced by the addition to such engine oils of a minor amount of one or more neutral/low TBN or mixture of neutral/low TBN and overbased/high TBN alkali and alkaline earth metal salts of alkyl salicylates, or alkyl phenolate, a minor amount of one or more of an organo molybdenum complex in an amount sufficient to provide 25 wt. ppm to 2000 wt. ppm elemental molybdenum in the final lubricant composition.

A crank bearing is disclosed that includes a semicircular upper bearing and a semicircular lower bearing, which can be split from each other. The upper bearing includes a first oil passage for introducing engine oil from the outside to a gap between the crank bearing and a crank journal, and a second oil passage for permitting the engine oil to flow in the circumferential direction of the crank bearing. The first oil passage includes an inner circumference opening, which is open to the inner circumference of the main bearing. The upper bearing includes a non-undercut portion in which no oil passage is formed on the trailing side of the inner circumference opening in the rotational direction of the crank journal. A chamfer oil passage for discharging the engine oil in the second oil passage to the outside from the axial direction of the crank bearing is provided in at least one of the lower bearing and a region on the proceeding side of the circumference opening in the rotational direction of the crank journal.