71 results about "Hybrid fuel" patented technology

Systems and methods for optimizing on-demand electric vehicle and mixed-fuel fleet operations use a learning-based system. In some embodiments, the method includes collecting real-time operational data, simulating service and charging processes, formulating assignment strategies, and adjusting assignments based on cost-to-go predictions in real time. The assignment strategy is updated in real time to account for parameters such as states of charge on the vehicles; changing context, such as weather or traffic; historical data; and constraints.

A fuel grain assembly for a hybrid rocket engine includes a hybrid fuel grain including fuel grain material, wherein an outermost portion of the fuel grain material defines an outer surface of the fuel grain, and wherein the fuel grain material includes a polymer based rocket fuel material; and a solid propellant material disposed in contact with the fuel grain material of the hybrid fuel grain, wherein the solid propellant material includes an oxidizer and a binder material, wherein a hollow combustion port extends through the fuel grain assembly, wherein at least a portion of a wall of the hollow combustion port is defined by the solid propellant material.

The invention relates to an intelligent control technology of an internal combustion engine, in particular to a multivariable cooperative control method of a dual-fuel engine, which realizes dynamic optimization matching of fuel injection and an air system through deep reinforcement learning and multivariable decoupling control technologies. According to the method, a dual-fuel engine multivariable cooperative control system based on deep reinforcement learning and dynamic decoupling is constructed, the dual-fuel engine multivariable cooperative control system is composed of an air system control layer, a multivariable decoupling layer and a fuel injection control layer, and the air system control layer controls the fuel injection control layer through a TD3-PID algorithm according to the vehicle speed, the vehicle speed and the vehicle speed. The rotating speed N, the torque T, the common rail pressure Prail, the fuel temperature Tfuel and the mixed fuel density rho mix are operated in real time to serve as state variables, data are collected and processed, and the dynamic adjustment amount of the electronic throttle valve is obtained; by means of a PSO-PID decoupling mechanism and a DDPG-PID intelligent control algorithm, decoupling regulation and control over the dual-fuel dynamic ratio, the EGR rate and the supercharging pressure according to working condition changes are achieved, the economical efficiency, the emission performance and the dynamic performance of the dual-fuel engine under the dynamic operation working condition are remarkably improved, and the method has the advantages of being high in self-adaptive capacity and high in robustness.

The invention discloses a fuel cell membrane electrode performance attenuation prediction method and system based on deep learning, and the method comprises the steps: obtaining the operation data of a fuel cell, carrying out the data feature preprocessing, and obtaining the multi-dimensional time sequence features of the operation data of the fuel cell; an optimal hyper-parameter combination is selected through Bayesian optimization, and a hybrid fuel cell voltage prediction model is constructed in combination with a multi-layer sensor, a gating circulation unit and a multi-head attention mechanism; and inputting the multi-dimensional time sequence characteristics of the fuel cell operation data into the hybrid fuel cell voltage prediction model for voltage prediction to obtain a fuel cell voltage prediction value, thereby realizing fuel cell membrane electrode performance attenuation prediction. According to the invention, short-term fluctuation and long-term evolution trends of voltage attenuation can be captured at the same time, and efficient and accurate prediction of the voltage attenuation process of the fuel cell is realized. The fuel cell membrane electrode performance attenuation prediction method and system based on deep learning can be widely applied to the field of fuel cell voltage prediction.

The invention discloses a diesel-storage hybrid energy supply control method for drilling operation, which belongs to the technical field of petroleum and natural gas drilling, and is characterized by comprising the following steps: S1, under the working condition of tripping operation, when an energy storage system is fully charged and the number of on-line running diesel generator sets is greater than or equal to 2, stopping one diesel generator set, and stopping the operation of the diesel generator set when the number of the on-line running diesel generator sets is greater than or equal to 2; the energy storage system and the remaining running diesel generating sets are jointly loaded, and first control logic is executed; s2, under the working condition of drill changing operation, when the load rate of the diesel generating set is lower than 30%, the diesel generating set charges the energy storage system, a second control logic is executed, and when the energy storage system is charged, the original operation mode is kept; and S3, supplying power to the living quarters through the energy storage system under the working condition that drilling operation is stopped. Aiming at the special working condition of low load or high load, a good hybrid energy supply effect can be achieved, and the stability of the system is guaranteed.

A hybrid fuel cell vehicle (10), comprising a vehicle body (100), a chassis (120), and an accommodating unit (110) located above the chassis (120); a vehicle-mounted power system (122), which is arranged on the chassis (120) and is used for providing kinetic energy to the hybrid fuel cell vehicle (10); an emergency power supply apparatus (126), which is arranged on the chassis (120) and is used for outputting power outward; a fuel cell module (124), which is arranged on the chassis (120) and is used for outputting power to the vehicle-mounted power system (122) and the emergency power supply apparatus (126); a hydrogen production module (112), which is arranged on the accommodating unit (110) and is used for providing hydrogen to the fuel cell module (124); and a storage box (114), which is arranged on the accommodating unit (110) and is used for storing a raw material for hydrogen production and providing the raw material for hydrogen to the hydrogen production module (112). By means of such arrangement, it is not necessary to additionally replenish other fossil fuels such as gasoline and diesel oil, and the hybrid fuel cell vehicle has flexibility in use and is applicable to different scenarios, thus reducing the costs of additionally purchasing different apparatuses.

A dual fuel system includes a first fuel supply of a first fuel, a second fuel supply of a second fuel, and a variable-output fuel pump. A fuel injector in the dual fuel system includes a combined-fuel outlet passage, a nozzle check movable to open and close the combined-fuel outlet passage to nozzle outlets, and a check valve positioned at least partially in a first fuel passage connected to the first fuel supply by way of the variable-output fuel pump. The first fuel may include a compression-ignition fuel and the second fuel may include an alcohol fuel. Varying output of the fuel pump during an off-cycle of a cam actuating a plunger in the fuel injector meters the first fuel to the fuel injector for forming a fuel charge for injection. Related apparatus and methodology is also disclosed.

The invention discloses a mixed fuel engine injection control method and device and a medium, and relates to the technical field of engine control. The method comprises the steps that a target air-fuel ratio and an actual air-fuel ratio are obtained; calculating a first deviation between the target air-fuel ratio and the actual air-fuel ratio; inputting a first calculation array corresponding to the current operation condition, a previous second deviation and a mixed fuel injection adjustment coefficient in a previous preset step length into a combustion adjustment transfer model to obtain a second deviation; and the second calculation array corresponding to the current operation condition, the first deviation and the second deviation are input into the control model, a mixed fuel injection adjustment coefficient is obtained, and under the condition that it is determined that the engine control mode is in the closed-loop control state, the injection amount of mixed fuel is obtained based on the mixed fuel injection adjustment coefficient. The engine control method and device are used for solving the problem that in the prior art, the engine is poor in operation stability and safety during multi-fuel combustion, and safe and accurate control over the engine is achieved.

Methods for blending transmix containing distillates such as diesel fuel into certified gasoline streams that can be burned in internal combustion engines without affecting the certification of the gasoline or the efficiency or operability of the engine.

A hybrid fuel cell system is disclosed. The hybrid fuel cell comprises a fuel cell adapted to supply power to a load. The hybrid fuel cell further comprises an Electrical Air Compressor (EAC) unit operatively coupled with the fuel cell. Also, the hybrid fuel cell comprises an auxiliary power source connected to the EAC unit via a Direct Current to Alternative Current (DC-AC) converter. Furthermore, the hybrid fuel cell comprises a converter circuit configured to perform at least one of enable the auxiliary power source to supplement the fuel cell to provide collective power supply to a load during the initialization phase of the fuel cell, enable the fuel cell to provide either the input power supply or a supplement power supply to the EAC unit during an operational phase of the fuel cell, or enable the fuel cell to charge the auxiliary power source.

A method for starting a hybrid fuel cell system (10), the method comprising: Providing a high-voltage electric bus (16); Providing a fuel cell stack (12) electrically coupled to the high-voltage electrical bus (16); Providing a high-voltage direct current power storage device (14) electrically coupled to the high-voltage electrical bus (16); Providing a diode (28) in the high voltage electrical bus (16) that prevents access of voltage from the high voltage storage device (14) to the fuel cell stack (12); Providing a bypass line (30) around the diode (28); Providing a fuel cell stack switch (18) between the fuel cell stack (12) and the high voltage electrical bus (16); electrical coupling of system loads to the high-voltage electrical bus; electrically coupling a low voltage / high voltage boost converter (36) to the high voltage electrical bus (16); Closing a bypass switch (32) in the bypass line (30) to allow electrical power from the high voltage direct current storage device (14) to bypass the diode (28) and operate the system loads (24); Starting the fuel cell stack (12) using the system loads (24); Determining whether an output voltage of the fuel cell stack (12) is stable; Opening the bypass switch (32) when the voltage of the fuel cell stack (12) is stable; and Closing the fuel cell stack switch (18) after opening the bypass switch (32).

The present invention presents a structure and circuit of a cell, wherein a fuel cell is used as an auxiliary device for water electrolysis in order to reduce the overvoltage required for a water electrolysis reaction, with a circuit designed to maintain the open circuit potential due to the absence of current flow, while an oxidation reaction in the fuel cell can be applied as a counter reaction to a hydrogen evolution reaction in water electrolysis. In this hybrid fuel cell-water electrolysis system presented in the present patent, the fuel cell and the water electrolysis share the same oxidation reaction to decrease the voltage difference from the hydrogen evolution reaction, thereby reducing the overvoltage for hydrogen evolution. The use of the system presented in the present patent enables the production of hydrogen at a voltage lower than a theoretical voltage of 1.23 V of a water electrolyzer by using an oxygen oxidation reaction as a counter reaction.

The present invention provides an intelligent control method, device, equipment and product for a hybrid fuel cell. The hybrid fuel cell includes: an electric motor and a fuel cell, and the electric motor and the fuel cell are respectively connected to a power mechanism of a vehicle for providing electric energy to the power mechanism. The method includes: obtaining the life cycle characteristics of the fuel cell, and adjusting the electric energy output ratio parameters of the fuel cell and the electric motor according to the life cycle characteristics of the fuel cell, wherein the fuel cell and the electric motor provide electric energy to the power mechanism according to the electric energy output ratio parameters. By evaluating the life cycle of the fuel cell and adjusting the power supply of the fuel cell and the electric motor to the vehicle according to the life cycle of the fuel cell, the present invention maximizes the output power of the fuel cell on the one hand, and ensures the safety of vehicle operation while ensuring the life of the fuel cell on the other hand.

A dual fuel system includes a first fuel supply of a first fuel, a second fuel supply of a second fuel, and a variable-output fuel pump. A fuel injector in the dual fuel system includes a combined-fuel outlet passage, a nozzle check movable to open and close the combined-fuel outlet passage to nozzle outlets, and a check valve positioned at least partially in a first fuel passage connected to the first fuel supply by way of the variable-output fuel pump. The first fuel may include a compression-ignition fuel and the second fuel may include an alcohol fuel. Varying output of the fuel pump during an off-cycle of a cam actuating a plunger in the fuel injector meters the first fuel to the fuel injector for forming a fuel charge for injection. Related apparatus and methodology is also disclosed.

The invention relates to the technical field of fluid mechanics control, and discloses a mixing enhancing device and method for achieving pulse disturbance through plasma excitation, the mixing enhancing device comprises a combustion chamber metal structure, a fuel injection hole is formed in the upstream of an inner cavity of the combustion chamber metal structure, and an electrode assembly and an electric switch are arranged on the downstream of the combustion chamber metal structure; the electrode assembly is arranged in an inner cavity of the combustion chamber metal structure; the electrical switch is externally connected to the electrode assembly from the combustion chamber metal structure; fuel is injected into the inner cavity of the metal structure of the combustion chamber through the fuel injection hole and mixed with air flow, meanwhile, the electrode assembly is controlled and adjusted through the electrical switch, then generation and annihilation of a multi-channel sliding arc plasma discharge area are achieved through high frequency, high-frequency pulse disturbance on a flow field is achieved, and mixing of the fuel and the air flow is enhanced. Through the collaborative design of the fuel injection hole and plasma excitation, high-frequency pulse disturbance is applied to a flow field to enhance fuel mixing, and the technical problems that the structure is heavy and the reliability is poor are solved.

A fuel grain assembly for a hybrid rocket engine includes a hybrid fuel grain including fuel grain material, wherein an outermost portion of the fuel grain material defines an outer surface of the fuel grain, and wherein the fuel grain material includes a polymer based rocket fuel material; and a solid propellant material disposed in contact with the fuel grain material of the hybrid fuel grain, wherein the solid propellant material includes an oxidizer and a binder material, wherein a hollow combustion port extends through the fuel grain assembly, wherein at least a portion of a wall of the hollow combustion port is defined by the solid propellant material.

1. Name of the Design Product: Tricycle (Hybrid Electric). 2. Use of the Design Product: For carrying people and transporting goods. 3. Design Key Points of the Design Product: Lies in the combination of shape and pattern. 4. Picture or Photograph Most Indicating the Design Key Points: Front View. 5. The bottom surface of this design product is a part that is not easily seen or not seen during use, and the bottom view is omitted.

The invention provides a composite biomass fuel for a fuel cell as well as a preparation method and application of the composite biomass fuel, and relates to the technical field of fuel cells. The composite biomass fuel for the fuel cell comprises a biomass material, molten carbonate and basic carbonate. According to the composite biomass fuel for the fuel cell, the electricity generation efficiency of the molten carbonate-solid oxide mixed type fuel cell can be remarkably improved, and an innovative technical solution is provided for efficient utilization of the biomass fuel cell.

The invention discloses a lithium hydrogen super-capacity hybrid fuel cell system control circuit and a controller. The control circuit comprises a power supply circuit, a CAN communication circuit, a 485 communication circuit, an analog quantity detection circuit, a PWM output circuit, a D I detection / DO output circuit, an LCD / LED display circuit and a low side / solenoid valve control circuit. The controller is of a stacked structure and comprises a control board on the upper layer and a power board on the lower layer. The control board is connected with the power board through a connector such as a pin header and a female header, and the pin header and the female header are used for transmitting sampling analog signals on the power board to the control board and providing a path for control signals issued by the control board and a power supply at the same time. The controller power supply circuit is specially developed for the use scene of the hydrogen energy moped, and the optimally designed controller power supply circuit can be easily compatible with hydrogen / lithium or hydrogen / super-capacity hybrid power application. The volume of the fuel cell controller is minimized by adopting pure digital control; rich control functions are integrated, and the system stability is good.

A propulsion system for an air vehicle includes a fan system that includes a fan that is coupled to a fan drive electric motor for generating a fan discharge airflow, an augmentor where fuel is mixed with a portion of the fan discharge airflow to generate a propulsive flow in a first operating configuration, a bypass duct for directing the fan discharge airflow into the augmentor, a duct blocker for selectively closing the bypass duct to the fan discharge airflow, a liquid oxygen system that is configured to inject liquid oxygen into the augmentor to mix with the fuel when the fan discharge airflow is closed by the duct blocker, the mixture of fuel flow and liquid oxygen generates the propulsive flow in a second operating configuration, and an electric power generation system is coupled to drive the fan drive electric motor.

A gas turbine system (1000, 2000, 3000) having a compressor section (10) configured to compress an oxidant stream and provide a compressed oxidant stream in a combustor section (20). The combustor section (20) is configured to receive an oxidant and a fuel gas mixture including at least a fuel gas and an inert gas separately, perform a diffusion flame combustion of the fuel and the oxidant in a combustion chamber, and provide a flue gas stream to a turbine section (30), which is configured to expand the flue gas stream and discharge the expanded flue gas stream at a turbine outlet. The gas turbine system also has a mixing unit (50) configured to mix at least the fuel gas and the inert gas and provide a fuel gas mixture in the combustor section (20) in a mixing ratio that depends on the flue gas content, for example on the measured or predicted NOx and / or CO and / or CO2 content of the flue gas. The mixing unit (50) is configured to mix at least the fuel gas and the inert gas under the control of a control unit (40) configured to control the operation of the gas turbine system.

A combustor for a turbine engine includes a combustion chamber for combustion of fuel and air, and the combustion of fuel and air produces heat. The mixer assembly is disposed at the front end of the combustor for receiving and mixing fuel and air and injecting the fuel and air into the combustion chamber for combustion. An insulating member is attached to the at least one structural member, and the insulating member at least partially defines a combustion chamber. The insulating member has a functional thickness and is fastened to the at least one structural member without reducing the functional thickness of the insulating member.

The invention discloses a hybrid fuel tank valve body closing height test device and test method, and relates to the technical field of fuel tank valves of fuel vehicles or hybrid vehicle fuel systems, and the hybrid fuel tank valve closing height test device comprises a support frame, and a liquid storage tank, a gas flow table and a test box used for simulating a real vehicle sealing environment which are installed on the support frame; test liquid is stored in the liquid storage box, a liquid conveying pipeline is communicated between the liquid storage box and the test box, and a pumping assembly for quantitatively conveying the test liquid is arranged on the liquid conveying pipeline; the gas flow table is communicated with the test box and quantitatively inputs required gas into the test box; a to-be-tested valve body is arranged at the top end inside the test box, the test box is provided with a liquid level sensor and a pressure sensor which are used for monitoring the liquid level and the pressure inside the test box respectively, and the pressure sensor is in electric control connection with the pumping assembly, so that the manpower part needed in the test is simplified, and the influence of subjective factors on the test is reduced; the stability and reproducibility of a test result are improved, the test efficiency is improved, and human resources are saved.

The invention discloses a main flame gathering type low nitrogen oxide burner nozzle, and belongs to the technical field of burners. The problems that thermal nitric oxide is generated due to the fact that the temperature of an existing natural gas hydrogen-doped combustor is too high, and tempering or blow-off exists in combustion of mixed fuel are solved. The air channel is coaxially arranged on the outer side of the central fuel channel in a sleeving mode, a plurality of main fuel channels are evenly distributed on the outer side of the air channel in the circumferential direction, the main fuel channels are located in the furnace body, and the main fuel sleeve is arranged on a main fuel channel conical opening in a sleeving mode. The main fuel channel inlet section, the main fuel channel conical opening and the main fuel sleeve gradually gather towards the center fuel channel along the same axis, and each main fuel sleeve is provided with a plurality of sleeve smoke inlets in the circumferential direction. Main fuel is input through the multiple main fuel channels, the uniformity of main flame can be improved, the flame temperature can be reduced, accordingly, generation of thermal nitrogen oxide is reduced, and the flame stability can be improved by means of two-stage supply of the fuel through the center fuel channel and the multiple main fuel channels.

A liquid fuel or hybrid fuel burner and method of operating the burner are described. The combustion air and / or NOx reducing medium are introduced at more than one location in the burner. A portion of the combustion air and the NOx reducing medium can be injected into the primary combustion zone through the NOx reducing medium conduit which surrounds the fuel injector which injects atomized liquid fuel or fuel gas into the primary combustion zone. Another portion of the combustion air and the NOx reducing medium can be introduced into the primary combustion zone through a passage in the burner tile surrounding the NOx reducing medium conduit. A third portion of NOx reducing medium can be injected outside the burner tile. NOx reducing medium can be introduced into any combination of the three locations.

The application relates to a power determination method and device for a hybrid fuel cell vehicle and a vehicle, and relates to the technical field of vehicles. At least the technical problem of unreasonable power distribution in the related art is solved. The method comprises the following steps: acquiring vehicle power demand information, a first current temperature of a fuel cell and a second current temperature of a power battery. A first power constraint condition of the fuel cell is obtained based on the first current temperature and a first power constraint matching strategy. A second power constraint condition of the power battery is obtained based on the second current temperature and a second power constraint matching strategy. The power of the fuel cell and the power of the power battery are determined based on the vehicle power demand information, the first power constraint condition and the second power constraint condition. In this way, the power distribution of the fuel cell and the power battery can be more reasonable.

The invention relates to a power determination method and device of a hybrid power fuel cell vehicle and the vehicle, and relates to the technical field of vehicles. The technical problem of unreasonable power distribution in related technologies is at least solved. The method comprises the following steps: acquiring vehicle power demand information, a first current temperature of a fuel cell and a second current temperature of a power cell; and obtaining a first power constraint condition of the fuel cell based on the first current temperature and the first power constraint matching strategy. And obtaining a second power constraint condition of the power battery based on the second current temperature and a second power constraint matching strategy. And determining the power of the fuel cell and the power of the power cell based on the vehicle power demand information, the first power constraint condition and the second power constraint condition. Therefore, the power distribution of the fuel cell and the power cell is more reasonable.

A control device (CL) for a gas turbine (GT) according to the present disclosure comprises: a combustor (2) having a burner (15) that burns an air-fuel mixture (F) including a main fuel (F1) and at least one auxiliary fuel (F2) having a slower burning speed than that of the main fuel (F1); a fuel flow rate adjustment unit (50) that adjusts a flow rate of the air-fuel mixture (F) supplied to the burner (15); and a load disconnection signal reception unit (51) that receives a load disconnection signal when disconnecting a load from an external power system. The fuel flow rate adjustment unit (50) reduces the fuel supply to the burner (15) after maintaining the fuel supply for a predetermined time when the co-firing ratio, which is the volume flow rate ratio of the main fuel (F1) to the auxiliary fuel (F2), is less than a predetermined value and the load disconnection signal is received, and reduces the fuel supply to the burner (15) when the co-firing ratio is equal to or greater than the predetermined value and the load disconnection signal is received.

The invention relates to the field of combustion heating and heat exchange, and discloses a multi-stage combustion heating and efficient heat exchange combined system which comprises an air bellow and an evaporation barrel, the interior of a lining barrel of the air bellow is connected with an air combing barrel through a sealing bottom plate, the top of the lining barrel is connected with a combustion barrel A in a sealed mode, and the combustion barrel A is sleeved with a combustion barrel B; the combustion cylinder B is sleeved with a combustion cylinder C, the combustion cylinder C is connected to the cylinder bottom plate in a sealed mode, and the combustion cylinder C is located in an evaporation cylinder cavity of the evaporation cylinder; the lining cylinder is provided with a fuel conveying pipe and an igniter; and the combustion cylinder C is connected with a flue gas heat exchange coil pipe. Internal air is combed and guided into required air flow to be fully mixed with fuel in the mixing chamber, the fuel is conveyed step by step in the mixing chamber, the combustion chamber A, the combustion chamber B and the combustion chamber C and is fully combusted, and combusted flames and high-temperature flue gas are collected into an inner chamber of the combustion chamber C to participate in heat exchange. And the fuel heat efficiency and heat exchange efficiency are improved.

The invention discloses a bipolar hydrogen production acid-base hybrid fuel cell, and belongs to the technical field of fuel cells. The bipolar hydrogen production acid-base hybrid fuel cell comprises a bipolar plate, a negative electrode, a positive electrode, a cation exchange membrane, a positive electrode electrolyte and a negative electrode electrolyte, wherein the positive electrode electrolyte is an acidic electrolyte; the negative electrolyte is alkaline electrolyte; the alkaline electrolyte contains formaldehyde; the negative electrode is loaded with an alkaline formaldehyde selective electrocatalytic oxidation catalyst; and the positive electrode is loaded with an acidic electrocatalytic hydrogen evolution catalyst. The bipolar hydrogen production acid-base hybrid fuel cell disclosed by the invention does not need an external oxidant or a high-temperature condition, can directly utilize the low oxidation-reduction potential (-0.2 V vs.RHE) of formaldehyde to realize efficient conversion, and avoids the problems of secondary pollution and carbon emission from the source.