12 results about "Viscosity grade" patented technology

This invention relates to a method for reducing abnormal combustion events during engine operation of a hydrogen-fired internal combustion engine (HICE), the method comprising the steps of: a) providing the hydrogen-fired internal combustion engine with a lubricating oil composition comprising or a mixture of the following components: i) a base oil having a KV100 of less than or equal to 12 cSt and comprising more than 50% by weight of the composition, and comprising Group I, Group II, Group III, Group IV base oils or combinations thereof; ii) at least one aromatic amine antioxidant comprising 0.1% to 10.0% by weight of the composition; iii) at least one over-alkaline metal-containing detergent having a total base number (KOH / g) of greater than or equal to 9 and less than or equal to 500, and comprising a treatment level providing the composition with 100 to 5000 ppm of total metals and 0.15% to 8.0% by weight of total soap; and iv) The lubricating oil composition has a total sulfate ash content of less than or equal to 2.5% by weight, a total phosphorus level of less than or equal to 0.120% by weight, and an SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X, or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50, or 60; b) supplying hydrogen-containing fuel to the HICE; and c) burning the fuel in the HICE. The present invention also provides lubricating oil compositions and concentrates for use in HICE to reduce the tendency for malfunctions.

The present application relates to the technical field of hydraulic transmission oil, and particularly relates to a hydraulic transmission oil composition with high shear stability and a preparation method thereof. The hydraulic transmission oil composition comprises the following components in parts by weight: base oil 85-99 parts, composite additive 0.1-5 parts, viscosity index improver 1-10 parts, pour point depressant 0.1-2 parts, and anti-foaming agent 0.001-0.1 part. The base oil is at least one of type I, type II and type III base oil. The viscosity grade of the base oil is No. 4, No. 6 or No. 8. The hydraulic transmission oil composition has high shear stability, good low-temperature performance, good copper strip corrosion resistance and good rust prevention, and can be used in vehicle hydraulic couplings and hydraulic torque converters, and can also be used in the hydraulic transmission system of engineering machinery.

This invention discloses a method and system for assessing the viscosity of liquid feed materials in pig farms. The method includes: real-time acquisition of pressure and flow time-series signals, and continuous acquisition of video streams of material outflow, generating a multimodal raw dataset containing physical sensor data and visual images; heterogeneous feature extraction from the multimodal raw dataset, fusing them to form a multidimensional feature vector characterizing the rheological properties of the material; inputting the high-dimensional feature vector into a pre-trained deep multimodal fusion network, outputting estimated values ​​of the material rheological parameters; and assessing the viscosity grade of the material based on the estimated values ​​of the material rheological parameters and a preset viscosity grade determination rule, thereby obtaining a viscosity grade assessment result. Using this invention, a non-contact, real-time online assessment of the viscosity of liquid feed materials can be achieved, providing reliable data support for the precise control of feed concentration.

This invention relates to a method for reducing abnormal combustion events during engine operation of a hydrogen-fired internal combustion engine (HICE), the method comprising the steps of: a) providing the hydrogen-fired internal combustion engine with a lubricating oil composition comprising or a mixture of the following components: i) a base oil having a KV100 of less than or equal to 12 cSt and comprising more than 50% by weight of the composition, and comprising Group I, Group II, Group III, Group IV base oils or combinations thereof; ii) at least one over-alkaline metal-containing detergent having a total base number (KOH / g) of greater than or equal to 9 and less than or equal to 500, and comprising a treatment level providing the composition with 100 to 5000 ppm of total metals and 0.15% to 8.0% by weight of total soap; iii) at least one molybdenum-containing compound comprising a treatment level providing the composition with 20 to 2000 ppm of total molybdenum by weight; and iv) The lubricating oil composition has a total sulfate ash content of less than or equal to 2.0% by weight, a total phosphorus level of less than or equal to 0.120% by weight, and an SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X, or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50, or 60; b) supplying hydrogen-containing fuel to the HICE; and c) burning the fuel in the HICE. The present invention also provides lubricating oil compositions and concentrates for use in HICE to reduce the tendency for malfunctions.

This invention relates to a method of reducing abnormal combustion events in a hydrogen fueled internal combustion engine (HICE) during operation of the engine. The method includes the steps of: a) providing to the HICE a lubricating oil composition including or resulting from the admixing of: i) a base oil having a KV100 of less than or equal to 12 cSt and included at greater than 50 wt. % of the composition and comprising a Group I base oil, a Group II base oil, a Group III base oil, a Group IV base oil, or combinations thereof; ii) at least one overbased metal containing detergent with a Total Base Number (KOH / g) greater than or equal to 9 and less than or equal to 500 and included at a treat level to deliver between 100 to 5000 ppm by weight of total metal and between 0.15 wt. % to 8.0 wt. % of total soap to the composition; iii) at least one silicon containing compound included at a treat level to deliver between 50 to 900 ppm by weight of total silicon to the composition; and iv) the lubricating oil composition having a total sulfated ash of less than or equal to 2.0 wt. %, a total phosphorous level of less than or equal to 0.120 wt. %, and a SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50 or 60; b) providing a fuel comprising hydrogen to the HICE; and c) combusting the fuel in the HICE. Also provided are a lubricating oil composition and a concentrate for use in a HICE to reduce the propensity for abnormal combustion events.

This invention relates to a method for reducing abnormal combustion events during engine operation of a hydrogen-fired internal combustion engine (HICE). The method includes the steps of: a) providing the HICE with a lubricating oil composition comprising or a mixture of the following components: i) a base oil having a KV100 of less than or equal to 12 cSt and an amount greater than 50% by weight of the composition, and containing Group I, Group II, Group III, Group IV base oils, or combinations thereof; ii) a super-alkaline metal-containing detergent comprising a super-alkaline metal salicylate detergent, a super-alkaline metal phenolate detergent, or a combination thereof, having a total base number (KOH / g) greater than or equal to 9 and less than or equal to 500, and being contained at a treatment level providing the composition with a total metal content between 100 and 5000 ppm by weight and a total soap content between 0.15% by weight and 8.0% by weight; and iii) The lubricating oil composition has a total sulfate ash content of less than or equal to 2.0% by weight, a total phosphorus level of less than or equal to 0.120% by weight, and an SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X, or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50, or 60; b) supplying hydrogen-containing fuel to the HICE; and c) burning the fuel in the HICE. Lubricating oil compositions and concentrates for reducing the tendency for abnormal combustion events in HICE are also provided.

The application provides a lubricating oil, a preparation method and application thereof. The lubricating oil comprises, in parts by weight, 49-80 parts of coal-based base oil, 15-30 parts of PAO 40 base oil, 8-10 parts of composite additive and 0.1-0.3 parts of pour point depressant; wherein the coal-based base oil is a type III base oil obtained by Fischer-Tropsch synthesis-hydrorefining of coal, and the lubricating oil does not contain a viscosity index improver. The coal-based base oil and the PAO 40 base oil are mixed and blended at low cost, the excellent high and low temperature performance and multiple viscosity levels of the coal-based base oil are utilized, different viscosity grades of lubricating oil are directly blended, and the viscosity index improver is not needed, so that the problem of viscosity deterioration of the lubricating oil caused by addition of the viscosity index improver is fundamentally eliminated, the lubricating oil can have excellent high and low temperature performance while keeping the oil viscosity stable for a long time, and the oil change cycle of the lubricating oil is prolonged.

The invention relates to the technical field of petrochemical engineering, and provides a storage tank bottom plate oil sludge cleaning method and device. The storage tank bottom plate oil sludge cleaning method comprises the following steps that the actual oil sludge viscosity grade in a storage tank is determined based on the actual oil sludge viscosity value in the storage tank; determining the actual oil sludge content grade in the storage tank based on the actual oil sludge thickness value in the storage tank; and based on the actual oil sludge viscosity grade and the actual oil sludge content grade, the cleaning robot calls different replaceable cleaning modules. By means of the cleaning method, the replaceable cleaning module needing to be called by the cleaning robot can be determined according to the actual oil sludge viscosity grade and the actual oil sludge content grade in the storage tank, then the cleaning robot drives the corresponding replaceable cleaning module to move on the storage tank bottom plate, and cleaning of the oil sludge in the storage tank is achieved. Therefore, compared with a manual oil sludge cleaning means, the labor intensity can be reduced, the cleaning efficiency can be improved, and the life safety of workers can be guaranteed.

This invention relates to a method for reducing abnormal combustion events during engine operation of a hydrogen-fired internal combustion engine (HICE). The method includes the steps of: a) providing the HICE with a lubricating oil composition comprising or a mixture of the following components: i) a base oil having a viscosity KV100 of less than or equal to 12 cSt and comprising more than 50% by weight of the composition, and containing Group I, Group II, Group III, Group IV base oils, or combinations thereof; ii) a super-alkaline magnesium detergent comprising super-alkaline magnesium salicylate, super-alkaline magnesium sulfonate, super-alkaline magnesium phenolate, or combinations thereof, having a total base number (KOH / g) greater than or equal to 9 and less than or equal to 500, and containing at a treatment level providing total magnesium between 100 and 5000 ppm by weight; iii) The super-alkaline metal-containing detergent comprises a super-alkaline metal salicylate detergent, a super-alkaline metal phenolate detergent, or a combination thereof, having a total base number (KOH / g) greater than or equal to 9 and less than or equal to 500 and containing at a treatment level providing a total metal content between 100 and 5000 ppm by weight; and wherein the super-alkaline magnesium-containing detergent of ii) and the super-alkaline metal-containing detergent of iii) together provide the composition with a total soap content between 0.15% by weight and 8.0% by weight; iv) at least one dialkyl dithiophosphate zinc compound containing at a treatment level providing the composition with a zinc content greater than 100 ppm by weight and a phosphorus content less than 800 ppm by weight; v) at least one molybdenum-containing compound containing at a treatment level providing the composition with a total molybdenum content between 20 and 2000 ppm by weight; vi) at least one silicon-containing compound containing at a treatment level providing the composition with a total silicon content between 5 and 1000 ppm by weight; and vii) The lubricating oil composition has a total sulfate ash content of less than or equal to 2.0% by weight, a total phosphorus level of less than or equal to 800 ppm by weight, and an SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X, or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50, or 60; b) supplying hydrogen-containing fuel to the HICE; and c) burning the fuel in the HICE. Lubricating oil compositions and concentrates for reducing the tendency for abnormal combustion events in HICE are also provided.

This invention relates to a method for reducing abnormal combustion events during engine operation of a hydrogen-fired internal combustion engine (HICE). The method includes the steps of: a) providing the HICE with a lubricating oil composition comprising or a mixture of the following components: i) a base oil having a KV100 of less than or equal to 12 cSt and an amount greater than 50% by weight of the composition, and containing Group I, Group II, Group III, Group IV base oils, or combinations thereof; ii) at least one boronized polyisobutylene succinimide (PIBSA-PAM) dispersant in an amount of 0.25% to 8.0% by weight of the composition to provide the composition with 30 to 1000 ppm by weight of total boron, wherein the boronized PIBSA-PAM dispersant is selected from lower molecular weight PIBSA-PAM dispersants (Mn less than 1600 g / mol), higher molecular weight PIBSA-PAM dispersants (Mn 1600 g / mol or greater), and combinations thereof; iii) At least one over-alkaline metal-containing detergent having a total base number (KOH / g) greater than or equal to 9 and less than or equal to 500 and being contained at a treatment level providing the composition with total metals between 100 and 5000 ppm by weight and total soaps between 0.15% by weight and 8.0% by weight; and iv) the lubricating oil composition having a total sulfate ash content less than or equal to 2.5% by weight, a total phosphorus level less than or equal to 0.120% by weight, and an SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X, or 0W-X, wherein X represents any one of 8, 12, 16, 20, 30, 40, 50, or 60; b) providing the HICE with hydrogen-containing fuel; and c) burning the fuel in the HICE. Lubricating oil compositions and concentrates for reducing the tendency for undesirable combustion events in HICE are also provided.

The present invention relates to a method of reducing abnormal combustion events in a hydrogen-fueled internal combustion engine (HICE) during engine operation. The method comprises the steps of: a) providing to the HICE a lubricating oil composition comprising or resulting from admixing: i) a base oil having a KV100 of less than or equal to 12 cSt and a content of greater than 50 wt% of the composition and comprising a Group I base oil, a Group II base oil, a Group III base oil, a Group IV base oil, or a combination thereof; ii) an overbased magnesium-containing detergent comprising an overbased magnesium salicylate, an overbased magnesium sulfonate, an overbased magnesium phenate, or a combination thereof having a total base number (KOH / g) of greater than or equal to 9 and less than or equal to 500 and included at a treat level to the composition providing between 100 and 5000 ppm by weight of total magnesium and between 0.15 wt% and 8.0 wt% of total soap; iii) at least one overbased calcium-containing detergent having a total base number (KOH / g) of greater than or equal to 9 and of less than or equal to 500 and included at a treat level to the composition providing greater than 100 ppm by weight of total calcium; and iv) the lubricating oil composition having less than or equal to 2.0 wt% of total sulfated ash, less than or equal to 0.120 wt% of total phosphorus level, and a SAE viscosity grade of 25W-X, 20W-X, 15W-X, 10W-X, 5W-X, or 0W-X, where X represents any one of 8, 12, 16, 20, 30, 40, 50, or 60; b) providing to the HICE a hydrogen-containing fuel; and c) combusting the fuel in the HICE. Also provided are lubricating oil compositions and concentrates for reducing the propensity for abnormal combustion events in a HICE.