2669 results about "Fuel tank" patented technology

The invention relates to a methanol internal combustion engine high-temperature fuel cell hybrid power system based on double-path waste heat gradient utilization. The invention relates to the technical field of internal combustion engine waste heat recovery and new energy power system integration. The system comprises a fuel tank, a first pump body, a heat exchanger, a methanol internal combustion engine, a turbine, a gas compressor, an air compressor, a reformer, a high-temperature proton exchange membrane fuel cell, an evaporator and a second pump body. A methanol-water vapor mixture generated by heat exchange of a mixed solution of methanol and water and a high-temperature fuel cell stack coolant in a heat exchanger is introduced into a reforming reactor and is subjected to catalytic reforming to produce hydrogen by utilizing waste heat of high-temperature tail gas of an engine, and the produced hydrogen is directly supplied to an anode of a high-temperature fuel cell. Through a double-path methanol distribution strategy, collaborative design of internal combustion engine waste heat recovery, electric pile heat management and reforming hydrogen production is realized, and the comprehensive energy efficiency of the system is improved.

A method includes determining a fuel amount; providing navigation directions; determining a vehicle arrival; transmitting a fuel purchase request; controlling a tank cover; receiving fuel; detecting that a tank is full; and transmitting a stop fueling request. A computer system includes a processor configured to: determine a fuel amount; provide navigation directions; determine a vehicle arrival; transmit a fuel purchase request; cause a pump to provide fuel; control a tank cover; detect that a tank is full; and transmit a stop fueling request. A non-transitory computer-readable medium storing thereon a set of instructions that, when executed on a processor, causes the processor to: determine a fuel amount; provide navigation directions; determine a vehicle arrival; transmit a fuel purchase request; cause a pump to provide fuel; control a tank cover; detect that fuel tank is full; and transmit a stop fueling request.

The invention belongs to the field of target drone fuel oil systems, and particularly relates to a self-adaptive supersonic speed target drone fuel oil system and a control method thereof. The system comprises a machine body oil tank, a first electromagnetic valve, an overflow valve, a pressurization oil tank, a fuel pump, an engine pump, a monitoring module and a control module. The body fuel tank comprises a main fuel tank and an auxiliary fuel tank which are arranged in a fuel tank in the middle of the target drone body and located in front of and behind the theoretical mass center of the target drone respectively. The pressurization oil tank is additionally arranged in the fuel oil cabin, fuel oil in the engine body oil tank enters the pressurization oil tank for pressure maintaining after being pressurized by the fuel oil pump, and then oil is supplied to the engine from the pressurization oil tank, so that stable oil supply to the engine is achieved by establishing a local pressure environment instead of a large pressure environment of the whole fuel oil cabin, and therefore when a fuel oil system works, the fuel oil can be stably supplied to the engine. The oil supply flow and pressure are controlled in a closed-loop mode in real time through the control system according to the engine state.

The invention discloses an automatic spraying control method and system for a fuel tank, and the method comprises the steps: obtaining the temperature monitoring data of the fuel tank, and carrying out the prediction, and obtaining the temperature prediction data; evaluating the high-temperature degree of the fuel tank based on the temperature prediction data to obtain a high-temperature degree evaluation value, and setting an initial control condition of the automatic spraying device according to the high-temperature degree evaluation value; determining temperature change characteristics of the fuel tank within a period of time after spraying, and determining a temperature change coefficient of the fuel tank based on the temperature change characteristics; and determining a control correction coefficient of the automatic spraying device based on the temperature change coefficient, and correcting an initial control condition of the automatic spraying device according to the control correction coefficient. By analyzing the temperature response characteristics in the spraying process and dynamically optimizing the control parameters, a complete monitoring-prediction-control-feedback closed loop is formed, the control precision is remarkably improved, timely and effective intervention is ensured when risks occur, energy and resources are saved, and unnecessary resource waste and equipment abrasion are avoided.

The invention discloses a range-extended hybrid motorboat system and a control method, and relates to the technical field of new energy engineering, and the system comprises a man-machine interaction unit which is used for receiving an operation instruction and displaying a system state; the system control unit is used for receiving a user instruction and feedback information and issuing a control instruction to the corresponding unit; the high-low voltage unit is used for storing, converting and distributing the electric energy; and the power integration unit is used for providing a fuel power source for the range extending mode and comprises an engine, an engine controller, an electric control ISG motor, an electric control driving motor, a cooling device, a fuel tank and a liquid level sensor. The range-extended hybrid power mode of fuel power generation and motor driving is adopted, the battery is continuously charged or the electric control driving motor is directly supplied with power when the electric quantity is insufficient, energy can be quickly supplemented through refueling, the problems that a pure electric motorboat is short in endurance and inconvenient to charge are effectively solved, and the service life of the pure electric motorboat is prolonged. The advantages of low noise and zero emission of pure electric drive and long endurance of fuel power are achieved.

An aircraft pylon comprising a box-section primary structure and at least one tank positioned inside the primary structure. To facilitate mounting or demounting the tank, the pylon is equipped with a guide system configured to move the tank from its mounted position toward a through-hole, including a guide rail fastened to the primary structure and positioned above the tank and a guide pin fastened to the tank cooperating with the guide rail so that the tank is supported by the guide rail and is able to slide along the latter. This guide system contributes to simplifying manipulation of the tank when mounting or demounting the tank by at least partly compensating its weight and guiding the tank.

A fuel system for a hydrogen fuelled aircraft propulsion system comprises a fuel tank configured to store hydrogen fuel, a main fuel conduit configured to provide fuel to a combustor of a gas turbine engine, a fuel heater comprising a catalytic combustor configured to catalytically combust a portion of the hydrogen fuel prior to delivery to the combustor and a heat exchanger configured to exchange heat between exhaust gases from the fuel heater and hydrogen fuel in the fuel conduit.

The invention discloses a transformer arc fault equivalent test device and a control method, and relates to the technical field of power equipment fault simulation and safety test, and the method comprises the steps: carrying out the corresponding high-pressure gas storage through a high-pressure gas storage unit according to target pressure data calculated by a choking flow dynamic coupling model; the quick release unit is used for matching fault duration according to the test trigger instruction so as to release the high-pressure gas stored in the high-pressure gas storage unit; the energy injection unit injects high-pressure gas into the test oil tank to form shock waves; the safety protection unit starts an interlocking protection mechanism based on the test data; the monitoring control unit controls each unit to act, monitors the operation process of each unit in real time, and obtains and identifies the validity of test data to optimize the test process; according to the invention, automatic test process control is realized, the arc fault key damage effect can be accurately quantified and reproduced, high-precision matching of pressure wave time domain characteristics is realized, and the reliability of a test result is ensured.

The invention discloses a construction precision control method for a thin film type fuel cabin of an LNG power-driven ship. The construction precision control method comprises the following steps that main plate pieces of the thin film cabin are segmented, the flatness is controlled, T rows are segmented and prefabricated, and main body plate pieces obtained by segmenting the plate pieces and other assemblies are subjected to component splicing, storage and transportation. Splicing a plurality of sections related to the thin film cabin, assembling the sections after splicing, and welding the sections; and carrying out total assembling and carrying on the segments according to a standard base line, and controlling local and overall flatness of the segments. Through whole-process precision control, it is ensured that the flatness of the inner surface of the film cabin meets the high-standard requirement; a special jig frame, non-welding fixation, symmetrical welding and other measures are adopted, and welding and assembling deformation is effectively restrained; and the construction efficiency is improved, rework is reduced and the production efficiency is improved by using a standardized process and a special tool.

This invention belongs to the field of helicopter design technology, and particularly relates to a method for controlling the longitudinal center of gravity of a helicopter. The method includes: acquiring characteristic data of the helicopter; determining the combined fuel weight G under the pre-limit loading state. 油前 Center of gravity C 油前 The total fuel weight G under the ultimate loading condition was determined. 油后 Center of gravity C 油后 Determine the fuel consumption ΔG of the receiving tank at the start of the transfer. 受油 Minimum value; determines the fuel consumption ΔG of the receiving tank at the start of transfer. 受油 Maximum value; determine the amount of oil transferred ΔG 输油 Minimum value; determine the amount of oil transferred ΔG 输油 Maximum value; ΔG 受油 ΔG 输油 Provides fuel system design to enable automatic transfer functionality.

A variable fuselage fuel tank structure of a high-speed aircraft comprises a fuselage fixing structure, an external flexible heat insulation skin and an internal skin bearing framework. The machine body fixing structure comprises a lower wall plate and an upper wall plate; the edges of the lower wall plate and the upper wall plate are connected, and the upper wall plate is provided with a fuel circulating hole; the outer flexible heat insulation skin is connected with the edge of the upper wall plate; the external flexible heat-insulating skin comprises a flexible fabric heat-proof outer layer and a microporous aerogel heat-insulating inner layer; the inner skin bearing framework is connected to the inner side of the outer flexible heat insulation skin and comprises reinforcing longitudinal beams, elastic elements and high-temperature-resistant rubber. The longitudinal beams are connected to the inner side of the outer flexible heat insulation skin in the longitudinal direction. A plurality of groups of elastic elements are respectively connected between two adjacent longitudinal beams, are distributed along the longitudinal direction, and are connected to the inner side of the external flexible heat insulation skin; and the high-temperature-resistant rubber is filled between the longitudinal beam and the elastic element, is filled in the elastic element and is adhered to the inner side of the external flexible heat-insulating skin.

The invention provides a vehicle fuel leakage detection method, device, system and equipment and a vehicle. In the method, when an ECU (Electronic Control Unit) monitors that a preset leakage detection condition is met during the driving of a vehicle, travel route traffic information of the travel is obtained; determining whether a preset detection duration condition is established or not according to the travel route traffic information; and if it is determined that the preset detection duration condition is met, fuel leakage detection is conducted through a fuel tank stop valve, a pressure sensor, a carbon tank desorption valve, a carbon tank stop valve and an engine. According to the scheme, in the vehicle driving process, fuel oil leakage detection is achieved according to the travel route traffic information, vehicle power-off and manual detection are not needed, and the detection efficiency is improved.

The invention discloses a non-pressure fuel oil filling system and method based on fluid driving and mining equipment, and the system comprises a fuel oil tank which is used as a fuel oil storage main body; the receiver serves as an initial channel for fuel oil to enter and comprises a filling port plug, a receiver shell and a filling reset spring, the filling port plug is movably installed at the inlet end of the receiver shell, and the filling reset spring is installed between the filling port plug and the receiver shell in a sleeved mode; the controller is fixed to the side, away from the oil gun, of the receiver, the controller comprises a switching valve element capable of moving in the axial direction, and the switching valve element can open or close an oil filling window in the controller under the action of the fluid pressure difference; the respirator is mounted at the top of the fuel tank and comprises an air intake and exhaust structure for balancing air pressure inside and outside the fuel tank and a cut-off floating ball capable of ascending and descending along with the oil level in the fuel tank; and two ends of the control oil pipe are respectively communicated with the controller and the respirator. The method is suitable for mine scenes, and has both safety and protection.

The gasoline engine generator fuel tank shell stamping die comprises a die body, a base, supporting columns, a hydraulic cylinder, a mistake-proofing structure and a waste collecting structure, the supporting columns are fixedly connected to the four corners of the bottom end of the base, a lower die is installed at the upper end of the base, a discharging port is formed in the middle of the interior of the lower die, and the hydraulic cylinder is fixedly connected with the lower die. A positioning pin is arranged on the upper surface of the lower mold, a heat conduction plate is arranged between the lower mold and the base, a refrigeration sheet is arranged at the bottom end of the heat conduction plate, the upper mold is arranged above the base, a cooling structure is arranged at the rear end of the lower mold, and the mistake-proof structure is arranged at the inner end of the lower mold. And the waste collecting structure is arranged at the bottom end of the base. By means of the structure, the problems that damageable parts of an existing stamping die are tedious to replace, waste is difficult to clean, and cooling efficiency is low can be solved, production efficiency is improved, the rejection rate is reduced, and the working environment is improved.

This invention discloses a hybrid power allocation method for range-extended electric vehicles (REEVs), relating to the field of intelligent power distribution technology. The method includes: determining the current external power demand status of the REEV; determining the current driving status of the REEV based on the engine operating status and real-time motor speed; acquiring the current state of charge of the battery and the fuel tank status of the range extender; determining the power supply mode of the REEV based on the external power demand status, driving status, battery state of charge, and fuel tank status; predicting the short-term power demand of the REEV based on its real-time speed and external power load, inputting the short-term power demand into a preset reinforcement learning model, and determining a hybrid power allocation ratio based on the power supply mode with the goal of minimizing energy consumption; and adjusting the range extender's power generation and the battery's output power through a hierarchical state machine based on the hybrid power allocation ratio.

A new tracked vehicle arrangement with a main vehicle and a trailer, where each of the main vehicle and the trailer have a track assembly on either side, and the tracks of the trailer are driven by the prime mover of the main vehicle. In the longitudinal direction of the main vehicle, only a small fraction (less than 25%) of the length of the main vehicle's cab, which is mounted above the frame, overlies the main vehicle's track assemblies, whereas the fuel tank is located between the cab and the prime mover. In a widthwise direction of the tracked vehicle, the fuel tank at least partly overlies the right and left track assemblies. This provides a counterbalance for the trailer, which has a platform attached by a first pivotable connection to the frame of the main vehicle and by a second pivotable connection to the frame of the trailer.

An in-tank fuel pump assembly and mounting system is disclosed which may be configured for mounting inside a fuel tank. The assembly includes a pump housing, pump mounted to the housing, and pressure relief valve. The housing may comprise upper and lower pump housing units coupled together. The upper housing unit is configured for mounting to a tank opening, which in one implementation may be the fuel fill opening. The lower housing unit extends into the tank to approximately the bottom of the tank. A fuel fill fluid pathway is created through the housing for adding fuel to the tank while the pump assembly remains in situ. The upper housing unit may include a removable fuel cap. The pump housing may include an integral vapor trap.

An internal combustion engine includes a fuel tank, a fuel injection valve, a fuel passage, a shut-off valve disposed in the fuel passage, and a pressure sensor that detects a passage fuel pressure that is a pressure of fuel in a portion of the fuel passage between the shut-off valve and the fuel injection valve. The controller outputs a valve closing signal to the shut-off valve, and executes a determination process of determining whether the shut-off valve is stuck open based on a decrease amount of the passage fuel pressure that occurs until an elapsed period after the valve closing signal is output reaches a predetermined specified period. The controller excludes, from the elapsed period, a period in which a fuel cutoff process for stopping fuel injection by the fuel injection valve during operation of the internal combustion engine is executed.

Composite material protection from UV degradation is disclosed by providing a co-cured composite material substrate co-cured with a UV / visible light-resistant fiberglass layer to form co-cured composite materials for exclusively imparting UV / visible light-resistant properties to co-cured composite material substrates for use in UV / visible light-resistant vehicle fuel tank assemblies.

An aircraft fuselage for releasing a fuel tank from inside the aircraft fuselage in case of emergency includes an outer structure, a mounting device to releasably secure a sled device for carrying a fuel tank in an inside of the outer structure, and a first openable release door separating the inside from an outside of the outer structure, wherein the first release door is positioned in relation to the mounting device such that the fuel tank is released through the first release door when the mounting device releases the sled device. A method is disclosed for releasing a fuel tank from inside the aircraft fuselage in case of emergency as well as an aircraft including such an aircraft fuselage.

The utility vehicle that includes a frame carrying a prime mover and extending between a first end and a second end in a longitudinal direction. The vehicle also includes ground engaging members operatively attached to the frame. At least one of the ground engaging members is powered by the prime mover to propel the frame over a ground surface. Also, the vehicle includes a control tower (supporting operator controls) located at or near a rear end of the frame, a tank positioned lateral to the control tower, and a support pad connected to the control tower and configured to contact a leg of an operator. Further, a pad surface of the support pad is configured to align with a portion of an angled surface of the tank. Therefore, an operator leaning against the pad surface and angled surface of the tank experiences a smooth transition therebetween.

The utility model discloses an integrated bidirectional hydraulic pump station for a car arrester in a tank, which comprises a valve block, a bidirectional hydraulic pump, a motor, an oil tank, a car arrester driving oil cylinder, overflow valves and one-way valves, a left oil way and a right oil way are arranged in the valve block, the left oil way is provided with a first overflow valve, a first one-way valve and a fifth one-way valve, and the fifth one-way valve is a hydraulic control one-way valve. A second overflow valve and a second one-way valve are installed on the right oil way, and the second one-way valve is a hydraulic control one-way valve and is controlled by the oil pressure of the left oil way; an oil port A1 of the two-way hydraulic pump is connected with a piston cavity oil port of the car arrester driving oil cylinder through a left oil way, and an oil port B1 of the two-way hydraulic pump is connected with a piston rod cavity oil port of the car arrester driving oil cylinder through a right oil way. The left oil way is connected with the oil tank through a fifth one-way valve, and the fifth one-way valve is used for releasing additional backpressure generated in a piston cavity in the process that the two-way hydraulic pump drives a piston rod of the car arrester driving oil cylinder to retract. According to the utility model, the power consumption is reduced, the energy is saved, and the reliability of the system is improved.

The invention discloses a lubricating oil system of an aviation turboprop engine. The lubricating oil system comprises a lubricating oil supercharging device, an oil-gas separation device, a lubricating oil return device, a lubricating oil filtering device, a lubricating oil monitoring device and a connecting guide pipe communicating all the devices. The lubricating oil supercharging device comprises a main lubricating oil pump, an auxiliary lubricating oil pump and a torque measuring pump; the oil-gas separation device comprises a ventilation oil tank, an air separator and an oil mist separator; the lubricating oil return device comprises a lubricating oil tank, a lubricating oil radiator, a middle and rear bearing oil well pump, a transmission box oil well pump and a direct-current electric lubricating oil pump; the lubricating oil filtering device comprises a lubricating oil filter and a middle-rear bearing oil return filter; the lubricating oil monitoring device comprises a temperature metal chip annunciator and a magnetic chip detection annunciator. Appropriate lubricating oil pressure and oil quantity are provided, lubrication and heat dissipation of friction surfaces of parts in an engine are improved, and the use reliability of the engine is improved.

A fuel system for a gas turbine engine including a compressor section, a combustion section, and a turbine section includes a fuel tank for storing a fuel, a plurality of heat exchangers downstream of the fuel tank, and a valve downstream of the plurality of heat exchangers. The valve includes a fuel inlet in fluid communication with the plurality of heat exchangers, a first fuel outlet in fluid communication with a first fluid pathway, and a second fuel outlet in fluid communication with a second fluid pathway. The fuel system includes a fuel cell including an anode inlet and an anode outlet. The anode inlet is in fluid communication with the first fluid pathway. The fuel system also includes a combustion chamber of the combustion section in fluid communication with the second fluid pathway and the anode outlet of the fuel cell and a controller communicatively coupled to the valve.

Example systems and methods for using multi-directional baffles in cryogenic fuel tanks are provided. An example cryogenic fuel tank comprises an inner surface defining an interior of the cryogenic fuel tank to hold a fuel and a plurality of baffles including a first baffle, the first baffle including a first member extending along a first plane and a second member extending along a second plane, the first plane different from the second plane, the second member connected to the first member, the plurality of baffles connected to the inner surface.

This application relates to an engine starting method, apparatus, storage medium, and program product, and pertains to the automotive field. The method is executed by a vehicle control unit in a hybrid vehicle, and includes: when the vehicle's engine is not started and the time difference is greater than a specified time difference, acquiring current engine fuel tank level information, total mileage information, and vehicle speed information; when the above three pieces of information meet their respective specified conditions, controlling the engine to enter a self-maintenance mode; when the engine coolant temperature is greater than a specified temperature, controlling the engine to exit the self-maintenance mode; and when at least one of the engine fuel tank level and vehicle speed information does not meet its corresponding specified condition, but the total mileage information meets its corresponding specified condition, displaying a first warning message on the vehicle's instrument panel. This solution allows the hybrid vehicle's engine to enter a self-maintenance mode without starting, thereby extending the engine's service life.

The invention relates to the technical field of high polymer material coatings, and particularly discloses a self-repairing type polyurea protective coating and a preparation method thereof. The self-repairing type polyurea protective coating comprises a component A and a component B. The component A comprises the following raw materials in parts by weight: 20-30 parts of polyaspartic acid ester, 5-8 parts of amino organic silicon resin, 1-3 parts of mesoporous silica, 1-3 parts of a self-repairing auxiliary agent and 10-20 parts of a solvent. The component B is polyether modified isocyanate; a three-phase interpenetrating network is formed through amino organic silicon resin-polyaspartic acid ester-polyether modified isocyanate, and the good self-repairing effect of the coating is kept in the high-abrasion environment of an automobile chassis, an automobile frame, a fuel tank and the like.

The utility model discloses a multi-cavity integrated type high-strength plastic fuel tank, which relates to the technical field of fuel tanks, and comprises a fuel tank, the fuel tank comprises a main fuel tank, and the top of the main fuel tank is provided with an oil filler. The honeycomb reinforcing ribs can further enhance the impact resistance of the fuel tank and ensure that enough supporting strength is provided for key parts, so that the fuel tank can bear larger external force impact, the risks of fracture and deformation are effectively reduced, and the service life of the fuel tank is prolonged. The main oil tank and the two oil storage tanks form three oil cavities, the three oil cavities are connected through the exhaust pipes and the one-way valves, shaking of fuel oil in the running process of a vehicle is effectively reduced through the multi-cavity structure, meanwhile, the fuel oil amount of all the cavities is relatively balanced, fuel oil consumption is more uniform, and the fuel oil utilization efficiency is improved.

The invention provides a vehicle fuel oil leakage detection system, a vehicle fuel oil leakage detection method and a vehicle, the vehicle fuel oil leakage detection system comprises a control assembly and an ECU, and the control assembly comprises an oil tank stop valve, a pressure sensor, a carbon tank desorption valve and a one-way controllable air pump. The fuel tank stop valve is installed in a connecting pipeline of the fuel tank and the carbon tank, the carbon tank desorption valve is installed in a connecting pipeline of the carbon tank and the engine, the one-way controllable air pump is installed on a ventilation pipe of the carbon tank, and the pressure sensor is installed in the fuel evaporation system. The ECU is used for detecting the control assembly when monitoring that a preset leakage detection condition is met, and generating an available detection result indicating whether the control assembly is available or not; if the available detection result indicates that the control assembly is available, leakage detection is conducted on the fuel evaporation system by controlling the control assembly. According to the scheme, the vehicle fuel oil leakage detection system is constructed, the ECU is adopted to carry out leakage detection on the fuel oil evaporation system, manual detection is not needed, and the detection efficiency is improved.

The invention relates to the technical field of fuel nozzle performance testing, in particular to an integrated high-precision fuel flow testing method and detection method.The testing method comprises the steps that a spraying test bed or a nozzle test bed is correspondingly selected based on whether a to-be-tested workpiece tests the spraying angle or not; after the integrated high-precision fuel oil flow testing device is in a reset state, a corresponding motor rotating speed is input to a digital control system based on the calibrated flow of the workpiece to be tested, a plunger pump of a high-pressure oil supply system is started, and oil liquid in an oil tank system is pumped to a corresponding spray test bed or nozzle test bed to run; the actual pressure difference of the workpiece to be measured is collected and transmitted to the digital control system, the actual pressure difference and the target pressure difference are compared, and the actual pressure difference is adjusted; when the preliminarily obtained actual oil flow is larger than a detection threshold value, the actual oil flow corresponding to the current flowmeter is defined as corresponding detection data; and when the preliminarily obtained actual oil flow is smaller than or equal to the detection threshold value, a weighing method is adopted for flow detection.