2117 results about "Diesel fuel" patented technology

A Level IV fuel-saving robot system for ACE HDTs of the present disclosure focuses on the minimization of actual fuel consumption (L / 100 km) for long-haul freight at first based on an electrical power split device (ePSD) and a mixed hybrid powertrain architecture. A basic model Level I fuel-saving robot realizes a longitudinal L1 automatic driving function through a predictive adaptive cruise (PACC) technology within an Operational Design Domain (ODD) for highways and reduces the actual fuel consumption of an ACE HDT by more than 20% compared with modern diesel HDTs, and the energy-saving and emission-reducing effect of the basic model Level I fuel-saving robot is decoupled from both the technical level of a vehicle engine and the driving level of a driver; an advanced Level IV fuel-saving robot has a L4 automatic driving function within the ODD for highways, operates in a “shadow mode” or “detached mode”, automatically generates a discrepancy report or detachment report, completes the “3R” batch validation for an L4 system on a billion mile scale quickly with high cost effectiveness on the premise of ensuring the traffic safety of existing road users and reduces the total validation expense by more than 65% compared with the modern HDT with internal combustion engine equipped with the L4 system, promoting the early commercialization of the Level IV fuel-saving robot.

The invention relates to the technical field of ship power, in particular to a dual-fuel ship fuel switching method and device and a storage medium, and the method comprises the steps that first engine performance data and engine state data corresponding to the first engine performance data are acquired; preprocessing the first engine performance data and the engine state data; the preprocessed first engine performance data are input into a target prediction control model for switching strategy prediction, and a fuel switching strategy corresponding to the engine is obtained; inputting the engine state data into the target fault prediction model for fault prediction to obtain a switching decision; a fuel switching strategy is sent to the control module according to the switching decision, so that the control module processes the fuel switching process according to the fuel switching strategy; and second engine performance data are received, and the fuel switching strategy is adjusted according to the second engine performance data. And seamless switching or cooperative use between liquefied natural gas and diesel oil of a ship can be met.

A combustor includes a housing and a combustion chamber assembly. The combustion cavity assembly comprises a cylinder part, a mounting base, a first spark plug, a second spark plug and a diesel nozzle assembly. The barrel part comprises a combustion cavity. The mounting base comprises an air inlet channel and a mounting cylinder part. The first sparking plug and the second sparking plug stretch into the combustion cavity in a protruding mode. The diesel oil nozzle assembly is installed on the installation barrel body part and used for spraying diesel oil into the combustion cavity. The diesel nozzle assembly comprises a valve needle, a first rotational flow assembly located at the bottom of the valve needle and a sleeve part located below the first rotational flow assembly, the first rotational flow assembly comprises an inlet hole and a closure spraying hole, and the sleeve part is provided with a mixing cavity communicating with the closure spraying hole. And the mixing cavity is used for mixing diesel oil and air. The closure spraying hole improves the continuity of spraying diesel oil at low power.

A combustor includes a housing and a combustion chamber assembly. The combustion cavity assembly comprises a cylinder part, a mounting base, a first spark plug, a second spark plug and a diesel nozzle assembly. The barrel part comprises a combustion cavity. The mounting base comprises an air inlet channel, a first air hole through hole and a second air hole through hole. The first sparking plug and the second sparking plug stretch into the combustion cavity in a protruding mode. A first airflow purging channel is further arranged between the first spark plug and the first wall part so that part of air can be used for purging the first spark plug. A second airflow purging channel is further arranged between the second spark plug and the second wall part so that part of air can be used for purging the second spark plug. According to the combustor, the probability of carbon deposition of the first spark plug and the second spark plug can be reduced.

The invention discloses a low-sulfur diesel oil production device and method, and belongs to the technical field of low-sulfur diesel oil production.The low-sulfur diesel oil production device comprises a production tank, a touch screen controller is arranged on the outer surface of the production tank, a feeding pipe and a supporting ring are fixedly installed on the outer surface of the production tank, and an electric heating pipe is arranged in a shell cavity of the production tank; the feeding pipe is located above the supporting ring, a plurality of supporting feet are fixedly installed on the bottom face of the supporting ring, and a bottom shell is fixedly installed on the bottom face of the production tank. According to the low-sulfur diesel oil production device, by arranging the driving assembly, the annular turbulent flow assembly and the hydrogen introduction mechanism in a matched mode, during diesel oil production, multi-angle release of hydrogen can be achieved, the production tank can be rapidly filled with the hydrogen, a desulfurization reaction can be rapidly conducted on the hydrogen and the diesel oil under the action of a catalyst, and the production efficiency of the low-sulfur diesel oil is greatly improved; meanwhile, continuous cleaning of the core area of the filtering structure can be synchronously achieved, and blockage caused by continuous accumulation of impurities on the filtering structure is avoided.

A refuse vehicle includes a chassis. The chassis includes a right frame member and a left frame member spaced apart in a lateral direction and extending lengthwise in a longitudinal direction, the right frame member being separate from the left frame member. The refuse vehicle further includes a body supported by the right frame member and the left frame member, the body defining a refuse compartment, and a hydrogen power system including a plurality of fuel cells longitudinally disposed along the chassis, positioned between the right frame member and the left frame member. The hydrogen power system may also include plurality of fuel pods for providing hydrogen to the fuel cells. The hydrogen power system can be packaged in modular pods on various locations of the refuse vehicle. The hydrogen power system can work in conjunction with other power sources or fuels (e.g., electric batteries, ultra-capacitors, diesel ICE, CNG, etc.).

According to the waste plastic double-heat-carrier circulating rapid pyrolysis fuel oil preparation device provided by the invention, a waste plastic crusher is communicated with the top of a downward pyrolysis reactor through a controllable feeder, and the upper part of the downward pyrolysis reactor is respectively communicated with a pyrolysis dry gas heat exchanger and a primary solid heat carrier return feeder; the bottom of the downward pyrolysis reactor is connected to the top of the moving bed reactor; the top of the moving bed reactor is communicated with the fractionating tower; the bottom of the moving bed is communicated with the lifting pipe heating regenerator through a to-be-generated heat carrier return feeder; a gas distributor, an ash discharge pipe and a gas inlet pipe are arranged at the bottom of the riser heating regenerator, and a first-stage gas-solid separator and a second-stage gas-solid separator are arranged at the top of the riser heating regenerator; a gas outlet of the second-stage gas-solid separator is provided with a pyrolysis dry gas heat exchanger and a waste heat boiler; a wax oil outlet, a diesel oil outlet and a gasoline outlet are formed in the bottom and the upper part of the fractionating tower, one path of tower top dry gas is connected with a water-cooling feeding pipe, the other path of tower top dry gas is communicated with a pyrolysis dry gas heat exchanger and a high-temperature gas hot melting section, and residual dry gas is delivered as a product.

The invention discloses a dual-fuel engine combustion method based on internal and external cooperative injection of a methanol engine, and belongs to the field of methanol fuel engines. The combustion method is realized on the basis of combustion of a diesel / methanol dual-fuel engine with internal and external cooperative injection of a methanol engine, a combustion chamber is formed by a cylinder cover, a cylinder and a piston, an internal and external concentric needle valve oil injector and an in-cylinder direct injection methanol injector are mounted on the cylinder cover, and a methanol port injector is mounted on an intake manifold; the high-reaction-activity diesel oil adopts a double direct injection technology; the low-reactivity methanol fuel adopts an in-cylinder high-low pressure injection and port fuel injection technology, the injection pressure, the injection timing and the injection frequency of the in-cylinder methanol injector are controlled, the gas distribution phase and the valve motion law are adjusted according to the operation condition of the engine, and mixed gas concentration layering of different gradients is formed. The ratio, the injection rule and the injection timing of the diesel oil and the methanol fuel can be flexibly adjusted, and stable operation of multi-mode combustion and high-efficiency clean combustion of the engine is achieved.

The invention discloses an air-fuel ratio control method for a high-pressure direct injection engine in a diesel-natural gas dual-fuel cylinder, and relates to the technical field of engine control, and the air-fuel ratio control method comprises the following steps: collecting diesel mass flow, natural gas volume flow and natural gas component data, and determining a diesel-natural gas mixing ratio; a basic target air-fuel ratio is obtained by combining the real-time rotating speed of an engine, the load and the diesel oil-natural gas mixing proportion; based on the pressure and temperature of the intake manifold and the rotating speed of the engine, the target air-fuel ratio after model correction is obtained; the working condition load change rate is detected, the pre-optimized air-fuel ratio trajectory MAP is called, and a transient correction target value is generated; calculating the deviation between the transient correction target value and the measured value of the air-fuel ratio sensor and the deviation change rate, and outputting an air-fuel ratio correction value; and the final target air-fuel ratio is calculated and sent to an air flow control valve to execute air inlet adjustment. The method is suitable for engine application scenes requiring high-precision and self-adaptive control to improve combustion efficiency and reduce emission.

The invention discloses a pebble coal waste heat utilization system and method of a coal-fired unit coupled heat insulation furnace, and belongs to the technical field of energy utilization and energy conservation. Comprising a heat insulation furnace body, a pebble coal crushing unit, an air supply unit, a diesel oil ignition unit, an ash blowing unit, a high-temperature flue gas mixing unit and an ash slag unit, wherein the pebble coal crushing unit, the air supply unit and the diesel oil ignition unit are connected with the feeding end of the heat insulation furnace body; the ash blowing unit and the high-temperature flue gas mixing unit are connected with the flue gas outlet end of the heat insulation furnace body; and the compressed air unit is respectively connected with the heat insulation furnace body, the soot blowing unit and the air supply unit. Based on the stable combustion characteristic of an adiabatic furnace, pebble coal is crushed and then combusted through the adiabatic furnace, after combustion, the pebble coal is mixed with a hot secondary air system of a pulverized coal furnace through hot flue gas, meanwhile, an effective pebble coal treatment mode and hot secondary air temperature rising are provided, solid waste treatment of a unit is achieved, and the flexibility of the unit is improved.

The invention relates to a method for producing high-octane gasoline through hydrocarbon catalytic cracking and a reaction system thereof, and the method comprises the following steps: in a constant linear velocity fluidized bed reactor, diesel oil and other light petroleum hydrocarbons are contacted with a high silica-alumina ratio catalytic cracking catalyst, and self-heat balance is maintained through regeneration flue gas circulation to produce liquefied gas and high-octane gasoline. According to the method disclosed by the invention, heavy oil such as naphtha, wax oil and residual oil can be processed while light hydrocarbon such as diesel oil is processed, the conversion rate of the diesel oil is high, self-heating balance can be realized, the problem of excessive diesel oil production capacity of a refinery plant is solved, and the processing benefit of crude oil is also improved.

The invention relates to the technical field of sustainable aviation fuel preparation processes, and discloses a process for producing sustainable aviation fuel by capturing carbon dioxide of an industrial boiler with an industrial byproduct hydrogen, which comprises the following steps: S1, raw material pretreatment; s2, converting hydrogen and carbon dioxide in the raw materials into Fischer-Tropsch synthesis gas by using a catalyst; s3, converting the Fischer-Tropsch synthesis gas obtained in S2 into liquid alkane; s4, the liquid alkane obtained in S3 is subjected to hydroisomerization to generate sustainable aviation fuel, industrial by-products of hydrogen and carbon dioxide can be converted into the sustainable aviation fuel through the steps of Fischer-Tropsch synthesis, hydroisomerization and the like, the fuel can serve as a substitute of petroleum fuel, dependence on traditional petroleum resources is reduced, and the sustainable aviation fuel is obtained. According to the invention, not only can sustainable aviation fuel be produced, but also light products (C5-C8 alkanes) and heavy products (C16-C24 alkanes) can be generated, and the light products and the heavy products can be respectively used for further Fischer-Tropsch synthesis reaction and can be sold as automotive second-generation biodiesel.

The invention belongs to the technical field of diesel engine tail gas aftertreatment, and particularly relates to a partitioned DPF catalyst and a preparation method thereof.The catalyst comprises a carrier, a first coating, a second coating and a third coating; the first coating is coated from the air inlet end, and the length of the first coating accounts for 100% of the length of the carrier; the first coating is coated with the second coating from the air inlet end, and the length of the second coating accounts for 60-90% of the length of the carrier; the third coating is coated on the second coating from the air inlet end, and the length of the third coating accounts for 30-50% of the length of the carrier; the first coating contains a first catalytic material; the second coating contains a second catalytic material; the third coating contains precious metal and a third catalytic material, and the content of the precious metal is 15-30 g / cfu. The DPF catalyst disclosed by the invention does not need to be matched with a diesel oxidation type catalyst, is low in precious metal consumption, good in active regeneration performance, high in aging resistance and high in particulate trapping efficiency, and can reduce the overall volume of a post-treatment device.

A retrofit mining haul truck includes a hybrid hydrogen fuel cell / battery-based powerplant in place of a carbon fuel-based powerplant. The retrofit mining haul truck includes a frame, a tray coupled to the frame, and a deck coupled to the frame forward of at least a portion of the tray. A battery system is mounted to the deck of the retrofit mining haul truck. A hydrogen storage system (HSS) is installed in an engine bay volume of the retrofit mining haul truck. The engine bay was configured to contain a combustion engine (e.g., a diesel engine) prior to retrofitting the retrofit mining haul truck. At least a portion of a fuel cell system is installed in a wheel pocket of the retrofit mining haul truck. The wheel pocket was configured to contain a diesel tank prior to retrofitting the retrofit mining haul truck.

A waste plastic and petroleum mixed feeding catalytic cracking process comprises a waste plastic self-hot melting dechlorination pretreatment process, a waste plastic molten liquid and petroleum catalytic cracking process and a cracked oil gas fractionation process. Part of recycle oil and cracking dry gas in the cracking oil-gas fractionation sub-process are cyclically returned to the waste plastic self-heating melting dechlorination pretreatment process to serve as high-temperature melting oil and feeding carrying gas, and waste plastic melting liquid in the waste plastic self-heating melting dechlorination pretreatment process is sent out to be mixed with crude oil to serve as a raw material for catalytic cracking of the waste plastic melting liquid and the crude oil; the oil gas is produced to the maximum extent through efficient dispersion atomization feeding and catalytic cracking of an atomizing nozzle, and then the cracked oil gas is subjected to fractionation to produce gasoline, diesel oil, recycle oil and cracked dry gas.

The utility model aims to disclose a mining single-armed drill carriage, which relates to the technical field of coal mine tunnel drill carriages and comprises a chassis, an anchor protection component and a power part, the anchor protection assembly is arranged at the front end of the chassis, and the power part is arranged behind the anchor protection assembly; the power part comprises a fixed plate, an explosion-proof diesel engine, a diesel oil tank, a water replenishing tank, a water washing tank, an air filter, a wireless remote control receiver, a hydraulic pump and a hydraulic oil tank; the explosion-proof diesel engine and the water washing tank are both arranged at the rear end of the fixing plate, the hydraulic pump and the hydraulic oil tank are both arranged at the front end of the fixing plate, and a smoke exhaust port of a smoke exhaust pipe of the explosion-proof diesel engine is formed in the top of the water washing tank. The device can flexibly adapt to narrow roadways; the explosion-proof diesel engine, the diesel oil tank, the water replenishing tank, the water washing tank, the hydraulic pump, the hydraulic oil tank and the like are compactly arranged, so that the power of the drill carriage is ensured under the condition of a narrow carriage body.

A system includes one or more processors and memory storing processor-executable instructions that cause the one or more processors to perform operations. The operations include generating a driving strategy for a traveling route of a train based on saved data in the system, the train comprising at least one diesel-electric locomotive (DEL) and at least one battery-electric locomotive (BEL); operating the train according to the driving strategy; receiving update data; revising the driving strategy based on the saved data and the update data including: determining an amount of energy for the train to traverse a segment of the traveling route based on the driving strategy and the update data, and determining a distribution of the amount of energy between the at least one DEL and the at least one BEL based on the driving strategy and the update data; and operating the train according to the revised driving strategy.

The invention relates to the technical field of fuel additives, in particular to a fuel additive as well as a preparation method and application thereof. Comprising the following components in parts by weight: 60 to 220 parts of bis-polyether amine, 10 to 20 parts of polyisobutene amine, 5 to 15 parts of polyether polyol, 5 to 30 parts of alkyl amine alcohol, 0.5 to 20 parts of polybasic fatty acid ester, 0.5 to 20 parts of alkyl acid ester, 10 to 30 parts of a catalyst, 2 to 7 parts of an antioxidant, 5 to 10 parts of a corrosion inhibitor and 10 to 50 parts of carrier oil. A small amount of the fuel additive is mixed with gasoline or diesel oil, and through bis-polyether amine and polyisobutene amine, combustion of fuel oil in a combustion chamber of an internal combustion engine is improved, more complete combustion of the gasoline or the diesel oil is promoted, the combustion efficiency of the fuel oil is enhanced, the oil consumption is reduced, and the economical efficiency of the fuel oil is improved; and air pollution caused by emission of hydrocarbon or combustion intermediate products is reduced.

The invention provides an environment-friendly low-sulfur diesel oil anti-wear agent, a preparation method and application thereof and a low-sulfur diesel oil anti-wear agent composition, and belongs to the technical field of anti-wear agents. The environment-friendly low-sulfur diesel oil anti-wear agent has a structure shown in the specification. The environment-friendly low-sulfur diesel oil anti-wear agent prepared by the invention has the advantages of excellent anti-wear performance, low acidity, small influence on the use performance of diesel oil, such as corrosivity, combustion performance, total acid value, oxidation stability and the like, capability of improving the oxidation resistance of the diesel oil, compatibility with engine oil, no increase of carbon deposit in an engine, and wide application prospect. # imgabs0 #

The invention relates to the technical field of gasoline processing, in particular to a method and a device for producing diesel oil with a low freezing point by taking heavy aromatics and mixed diesel oil as raw materials, the method comprises the following steps of: 1, mixing the heavy aromatics, the mixed diesel oil and hydrogen, feeding into a hydrofining unit, and carrying out hydrofining reaction under the action of a hydrofining catalyst, a hydrofining reaction product is obtained; step 2, the hydrofining reaction product enters a hydro-upgrading unit and is subjected to hydro-upgrading reaction under the action of a hydro-upgrading catalyst, and a hydro-upgrading reaction product is obtained; and 3, feeding the hydro-upgrading reaction product into a rectification unit, and carrying out rectification separation to obtain naphtha and-35 # diesel oil with a low freezing point. The heavy aromatics, the hydrogen and the mixed diesel oil are mixed, the obtained mixed material is subjected to hydrofining and hydro-upgrading treatment, the-35 # low-freezing-point diesel oil is obtained, the method has the advantages of being short in technological process and small in equipment investment, the field process does not need to be greatly transformed, and the quality improvement and efficiency improvement effects are remarkable.

The invention provides a comprehensive evaluation method and system for economical efficiency of an ammonia diesel dual-fuel generator, and relates to the technical field of generators, the method comprises the following steps: obtaining ammonia fuel and diesel mass flow and unit price in real time to generate fuel cost parameters, and combining a load state and power generation efficiency to construct a power generation income model; triggering a heat loss, ammonia escape and emission penalty calculation module based on the fuel cost and the power generation income to obtain a corresponding penalty value; and inputting the penalty values into an economic evaluation model for coupling calculation, generating economic benefit indexes, and feeding the economic benefit indexes back to a fuel proportioning controller for closed-loop optimization. According to the method, the operation benefit of the system is improved through multi-dimensional economic evaluation, the operation cost is reduced by 25%, ammonia escape is reduced by 50%, NOx emission is reduced by 40%, and the stability of the system is improved by 35%.

The invention relates to an oil-soluble viscosity reducer composition and a preparation method and application thereof.The oil-soluble viscosity reducer composition is formed by compounding alkyl pyridine and coker diesel oil and can rapidly permeate into thick oil, the viscosity of the thick oil is greatly reduced, and the fluidity of the thick oil is improved. When the oil-soluble viscosity reducer is used in heavy oil reservoir exploitation, storage and transportation processes, the use amount of thin oil for blending heavy oil with thin oil can be saved, the cost of the oil-soluble viscosity reducer is reduced, efficient exploitation, gathering and transportation of the heavy oil reservoir are guaranteed, cost-reducing and efficiency-increasing exploitation of the heavy oil reservoir is realized, and high-added-value comprehensive utilization of coker diesel oil is facilitated.

The invention discloses an injection control method and system for an ammonia fuel engine, and relates to the field of ammonia fuel engines. The method comprises the steps that when the ammonia fuel engine is switched from a pure diesel mode to an ammonia-diesel dual-fuel mode, the total energy for maintaining operation of the pure diesel mode is determined; according to the ammonia substitution rate and the total energy under the current working condition, the ammonia fuel injection amount is determined, and ammonia fuel injection is conducted according to the ammonia fuel injection amount; the ammonia concentration output after waste gas discharged by the ammonia fuel engine is treated by a post-treatment system is obtained; if the output ammonia concentration is larger than or equal to the first concentration threshold value, the ammonia concentration and the nitrogen-oxygen concentration of the input end of a mixer in the aftertreatment system are obtained; and if the ammonia concentration and the nitrogen-oxygen concentration of the input end are not zero and the absolute value of the difference value between the ammonia concentration and the nitrogen-oxygen concentration of the input end is smaller than or equal to a second concentration threshold value, the ammonia fuel injection amount is adjusted through a correction factor. According to the invention, ammonia fuel injection can be accurately controlled, and ammonia leakage and excessive emission are prevented.

The utility model relates to the technical field of diesel hydrofining, in particular to a diesel hydrofining catalytic device which comprises a diesel hydrofining catalytic device mounting box, a liquid storage barrel is arranged at the top of the diesel hydrofining catalytic device mounting box, and uniform mixing assemblies are arranged inside and outside the liquid storage barrel; the uniform mixing assembly comprises a supporting frame arranged on the outer wall of the left side of the diesel oil hydrofining catalytic device mounting box, a liquid adding tank is arranged at the top of the supporting frame, the bottom end of the liquid adding tank is connected with a connecting pipe, and a suction pump is arranged at the other end of the connecting pipe. The anchor stirrer is used for stirring liquid and a catalyst in the liquid storage barrel to enable the liquid and the catalyst to be mixed more uniformly, the temperature sensor is used for detecting temperature, the branch nozzles are used for adding the liquid, the liquid is more convenient to add, and therefore the use efficiency of the diesel hydrofining catalytic device is improved conveniently.

The invention belongs to the technical field of automobile coatings, and particularly relates to an automobile original factory exterior decoration water-based black paint and a preparation method thereof. The invention provides automobile original factory exterior decoration water-based black paint. The automobile original factory exterior decoration water-based black paint is prepared from components in parts by mass as follows: 25-50 parts of water-based polyurethane resin, 5-15 parts of water-based polyester resin, 1-5 parts of amino resin, 0.5-1 part of a first wetting agent, 0.1-0.5 parts of a defoaming agent, 3-5 parts of a thixotropic agent, 3-10 parts of a solvent, 10-20 parts of water-based black slurry, 1-3 parts of a pH regulator, 1-3 parts of a functional aid and 20-30 parts of water. The functional auxiliary agent comprises polyethylene glycol and diacetone acrylamide. The automobile original factory exterior decoration water-based black paint provided by the invention has excellent comprehensive properties such as excellent high-speed shearing resistance, stable construction performance, high-pressure water gun flushing resistance, boiling resistance, excellent heat storage performance, acid resistance, alkali resistance, gasoline resistance, diesel oil resistance, engine oil resistance, high-speed shearing resistance, water resistance, excellent adhesive force and the like.

The utility model discloses a gearbox for an oil-electricity double-engine ship. The gearbox comprises a box body, the diesel oil input component comprises a first input shaft, a first driving gear is sleeved on the first input shaft, and the first input shaft is provided with a first transmission gear and a first clutch; the reversing shaft part comprises a reversing shaft, a second driving gear is sleeved on the reversing shaft, the reversing shaft is provided with a second transmission gear and a second clutch, and the second transmission gear is meshed with the first transmission gear; the motor input component comprises a second input shaft, the second input shaft is sleeved with a third driving gear in an empty mode, the third driving gear is meshed with a first driven gear, the second driving gear is fixedly sleeved with the first driven gear, and the second input shaft is provided with a third clutch; the output shaft component comprises an output shaft and a second driven gear, and the second driven gear is meshed with the first driving gear and the second driving gear. According to the scheme, the diesel engine or the motor is independently used for driving, intelligent switching of the diesel engine and the motor can be achieved at any speed, oil consumption is reduced, and power performance is improved.

A diesel oil filter comprises a shell, a filter seat is arranged on the shell, an oil inlet hole and an oil outlet hole are formed in the filter seat, a filter layer is arranged in the shell, the filter layer comprises a filter element assembly, the filter element assembly comprises an upper end cover and a lower end cover, a cylindrical filter element is coaxially arranged between the upper end cover and the lower end cover, a center pipe is arranged in an inner cavity of the cylindrical filter element, and the center pipe is arranged in the inner cavity of the cylindrical filter element. An oil outlet channel is arranged in the upper end cover; as shown in the figure, a water absorption layer is arranged in the central pipe, and the outer side of the filter element assembly is communicated with the oil inlet hole; or the outer side of the cylindrical filter element is sleeved with a water absorption layer. The water absorption layer is used for absorbing water in diesel oil, so that a water level monitoring element and a water drainage element of the diesel oil filter are omitted, the structure is simplified, the occupied space of the filter is reduced, potential fault points are reduced, the overall reliability of the filter is improved, the filter is more convenient and rapid to install and maintain, and the service life of the filter is prolonged. And the daily drainage maintenance, water level detection and drainage element maintenance cost is saved.

A hydrogen-diesel direct injection dual-fuel system for an internal combustion engine enables retrofitting to existing diesel engines. The system comprises: a cylinder head of the engine having a first and a second injector hole; a diesel pilot injector positioned in the first injector hole; and a hydrogen injector positioned in the second injector hole; wherein the hydrogen injector comprises: a gasoline direct injector having an external shank and a distal output end; and a nozzle cap covering the distal output end, wherein the nozzle cap is welded to the external shank.

The present disclosure generally relates to systems and methods utilizing regenerative agriculture for the procurement, production, refinement and / or transformation of low carbon intensity transportation fuels, including low carbon intensity biodiesel and / or renewable diesel, low carbon intensity biogasoline, low carbon intensity aviation, marine and kerosene fuels as well as fuel oil blends, low carbon intensity ethanol, and low carbon intensity hydrogen, that may be beneficially commercialized directly to consumers. In further aspects, the systems and methods of the present disclosure advantageously generate low carbon intensity comestibles, including sustainably-sourced meal and / or feed. The disclosed systems and methods may be utilized and optimized such that the resulting fuels and foodstuffs are characterized by a reduction in greenhouse gas production and a diminution in the fertilizer, pesticide and water required for producing the associated crop feedstocks.

The invention relates to the technical field of engines, in particular to a piston combustion chamber for a diesel and natural gas engine and the engine, and the piston combustion chamber for the diesel and natural gas engine comprises an omega-shaped pit. The straight opening type omega-shaped pit structure is adopted, compared with a traditional ignition type combustion chamber, the ineffective conical volume in the center of the combustion chamber is removed, the top dead center injection diffusion combustion mode is better met, the air utilization rate is higher, the compression ratio is higher, and higher heat efficiency can be better achieved; compared with a traditional necking omega-shaped diesel engine combustion chamber, a plurality of necking structures are removed, the first annular concave face and the second annular concave face are designed, the characteristic of natural gas injection is better met, the front end space of flames is fully released, the air utilization rate is increased, the heat transfer loss is reduced, and the combustion efficiency and the heat efficiency are improved; due to the design of the large-curvature concave surface, the problems of heat load concentration and particle friction caused by a sharp structure can be avoided, and the problems of out-of-control combustion, knocking and engine damage are reduced.