489 results about "Fuel delivery" patented technology

A method is provided for operating a powerplant. During this method, a hydrocarbon fuel is delivered to a turbine engine for combustion within a combustion chamber of the turbine engine during initial startup operation of the turbine engine. Ammonia is at least partially cracked into hydrogen gas and nitrogen gas. A non-hydrocarbon fuel is delivered to the turbine engine for combustion within the combustion chamber of the turbine engine during post-startup operation of the turbine engine. The non-hydrocarbon fuel is or otherwise includes the hydrogen gas or a combination of the hydrogen gas and the nitrogen gas.

The invention discloses a storage and supply system for enhancing flexible operation of a coal power unit by a pulverized coal bunker, particularly relates to the field of thermal power generation, and is used for solving the problem that fuel conveying and combustion are asynchronous during rapid load adjustment of the coal power unit. Coordination control is carried out with the unified fuel demand as the center, the lag effect of pulverized coal storage and release is accurately predicted and counteracted before pulverized coal enters a boiler, and the pulverized coal conveying rhythm is closely aligned with the actual coal use demand. In this way, the oxygen amount and temperature fluctuation in the boiler combustion process are greatly reduced, and the problems that due to the fact that fuel supply is fast and slow, combustion in the boiler is not stable, and pollutant emission is increased are solved; meanwhile, the whole control method can automatically learn and adjust, frequent human intervention is not needed, operation is simpler, more convenient and safer, the capacity of a power plant for rapidly adapting to power grid load changes is remarkably improved, and the flexible advantage of pulverized coal storage and supply is fully played.

The invention discloses a metal product surface sealing device based on an underwater explosion cladding technology, and belongs to the technical field of metal surface treatment. A pressure-resistant cavity is formed in the sealing box body, a buffer supporting structure is arranged at the bottom of the sealing box body, and a fuel tank and a combustion-supporting gas input connector are arranged at the top of the sealing box body; the two oppositely-arranged fixing assemblies are arranged in the pressure-resistant cavity, and a base plate and a covering plate are arranged between the two fixing assemblies; the ignition assembly comprises a mounting shell, a pulse igniter, a safety interlocking module and a power management unit are integrally mounted in the mounting shell, and the gas circuit control system comprises a fuel conveying pipeline and a combustion-supporting gas input pipeline which communicate with a fuel tank. According to the device, efficient and safe operation of underwater explosion compounding is achieved through collaborative innovation of multiple assemblies, the adjustable fixing assembly guarantees the positioning precision of the base plate / covering plate, the intelligent ignition system avoids the ignition failure risk, gas path closed-loop control optimizes the explosion energy stability, and the service life of the device is prolonged through a buffer supporting structure.

Disclosed in the present invention is an integrated reforming power generation test system having wide-range fuel adaptability, comprising a fuel supply subsystem, a catalytic reforming subsystem, a hydrogen purification subsystem, a power generation subsystem, and a test monitoring subsystem. A fuel pump and a fuel delivery pump are connected to a water-gas shift reactor by means of an evaporator and a reformer, the water-gas shift reactor is connected to a pressure swing adsorption device by means of a first gas-liquid separator, the pressure swing adsorption device is connected to a fuel cell stack by means of a hydrogen buffer tank, and a gas chromatograph is connected to the reformer by means of a third gas-liquid separator and to the water-gas shift reactor by means of a second gas-liquid separator. By using a variety of fuel resources to produce electricity, the present invention breaks through the limitation of the scope of traditional single-fuel reforming power generation systems, ensures the reliability of electricity supply, gets rid of the dependence on specific fuels, enhances regional energy safety, and improves the flexibility of energy supply.

A control system for a fuel cell electric vehicle (FCEV) includes a controller that is configured to control a fuel delivery system to release fuel via an injector with a selected fuel tank valve among a plurality of fuel tank valves controlled to be in an open state and with the other fuel tank valves controlled to be in a closed state. The control is further configured to cause a corrective action in response to a fuel characteristic indicating the selected fuel tank valve is stuck closed.

The invention relates to the technical field of aviation aircraft power systems, and discloses an aero-engine liquid hydrogen fuel conveying system and a control method thereof, which adopt multi-branch high-precision metering to realize wide-range high-precision flow regulation requirements, determine branch through-flow capability by a root order method, and realize high-precision flow regulation of the aero-engine liquid hydrogen fuel conveying system. The number of hydrogen supply branches, the available regulation ratio of the regulating valve and the total flow regulation ratio demand are matched, and the problem of high-precision fuel conveying in an extremely wide flow regulation range is solved. The circulating coupling heat exchanger is adopted to reasonably utilize waste heat of the system to raise the temperature of hydrogen fuel to the level suitable for combustion, reasonable optimization of heat / energy utilization of the system is achieved, fuel consumption is reduced, and circulating heat efficiency is improved. The hydrogen temporary storage tank is adopted to solve the problem that the supply flow of an upstream liquid hydrogen pump and a heat exchanger is not matched with the flow required by a downstream regulating valve due to hysteresis in the heat exchange process in the fuel flow regulation transient process.

This invention discloses a high-disturbance spray boom structure based on plasma-excited coupled aerodynamically assisted atomization, relating to the field of afterburner technology for aero-engines. It includes: a shell with an air inlet; a fuel pipe with a fuel delivery channel; the fuel pipe extending into the shell and forming an air channel with it; a first insulating platform with a collision atomization zone and an atomization development zone; the first insulating platform is connected to the output end of the fuel pipe, and its neck has several fuel-gas atomization channels; a second insulating platform with a plasma discharge region; the second insulating platform is snapped into the first insulating platform; a high-voltage electrode located between the first and second insulating platforms; and a grounding electrode located between the second insulating platform and the shell. This invention employs the coupling of plasma excitation with aerodynamically assisted atomization and cross-collision to perform three consecutive actions on the fuel spray, thereby improving the fuel atomization performance of the high-disturbance spray boom.

The invention discloses a fuel treatment system of a V-shaped methanol fuel engine for a ship. The fuel treatment system comprises a split-flow conveying module, a fuel supply module, a fuel injection module, a leakage collection module, a leakage alarm module, a nitrogen purging module and a forced exhaust module. The fuel supply modules are divided into a column A and a column B, the split-flow conveying module conveys fuel to the column A and the column B of the fuel supply modules, and the columns of the fuel supply modules are connected through pipelines; each fuel supply module is connected with the multiple fuel injection modules and used for supplying methanol fuel in the main pipeline to the fuel injection modules to complete fuel conveying; according to the fuel treatment system of the V-shaped methanol fuel engine for the ship, the functions of stable-pressure supply of the V-shaped methanol fuel engine, safety protection of key leakage parts, monitoring and treatment of gas-liquid two-state leaked fuel, fuel emptying in the processes of shutdown maintenance and the like are achieved, safe use of fuel in the whole use process of the engine is achieved, and personnel safety is guaranteed.

In one example, a gas turbine system, includes a pressurized fluid delivery system configured to deliver into a combustor system, which includes a pressurized fuel fluid, a pressurized oxidant fluid; and a pressurized diluent fluid comprising a diluent. The gas turbine system also includes an oxidant fluid discharge system configured to control a first flow of the pressurized oxidant fluid incoming from the pressurized fuel delivery system into the combustor system, and a pressurized diluent injection system configured to control a second flow of the pressurized diluent fluid incoming from the pressurized fuel delivery system into an upstream diluted fuel rich combustion stage included in the combustor system, and into a. downstream diluted oxidant combustion stage included in the combustor system, wherein the pressurized diluent fluid comprises a. superheated fluid. The gas turbine system additionally includes a control system.

An engine can utilize a combustor to combust fuel to drive the engine. A fuel nozzle assembly can supply fuel to the combustor for combustion or ignition of the fuel. The fuel nozzle assembly can include a swirler and a fuel nozzle to supply a mixture of fuel and air for combustion. Increasing efficiency and meeting emission needs can be met with the use of alternative fuels, which combust at higher temperatures or higher speeds than traditional fuels, requiring improved fuel introduction without the occurrence of flame holding or flashback.

A hydrogen fuel system including a fuel delivery assembly, a purge gas source, and a vent. The fuel delivery assembly is configured to receive hydrogen fuel from a hydrogen fuel source and to provide the hydrogen fuel from the hydrogen fuel source to a power generator. The purge gas source is fluidly coupled to the fuel delivery assembly and configured to provide a purge gas to the fuel delivery assembly. The vent is fluidly coupled to the fuel delivery assembly and configured to vent hydrogen fuel from the fuel delivery assembly when the purge gas is provided to the fuel delivery assembly.

A turbine engine for an aircraft includes a fuel delivery assembly for a hydrocarbon fuel to flow therethrough, a combustor combusting the fuel to generate combustion gases, and a core air exhaust nozzle exhausting the combustion gases from the turbine engine. The turbine engine also includes a contrail mitigation system having a heater and a fuel precipitate separator. The heater is selectively operable to heat the hydrocarbon fuel and to generate fuel precipitates in the hydrocarbon fuel, and the fuel precipitate separator separates the fuel precipitates generated by the heater from the fuel. A controller is coupled to the heater to operate the heater to heat the hydrocarbon fuel and to generate fuel precipitates in the hydrocarbon fuel in response to a contrail mitigation input.

The invention provides a boiler combustion optimization method. The boiler combustion optimization method comprises the steps that operation parameters of all key nodes in the combustion process are collected; determining an energy input item, an energy output item and a heat storage energy change item based on the collected operation parameters, establishing a load prediction model, and predicting a load change trend at a future preset moment; a fuel quantity optimization model based on the load change rate is established, the fuel conveying process is optimized, and the ideal fuel quantity is generated; an air quantity optimization model based on the flue gas oxygen content is established, the combustion process is optimized, and the ideal air quantity is generated; establishing a coal-water ratio optimization model based on the steam temperature, optimizing a steam generation process, and generating an ideal coal-water ratio; and controlling a corresponding execution mechanism to act according to an optimization result to realize optimization control of the combustion process of the boiler. By constructing the load prediction model and the combustion parameter optimization model, the dynamic optimization of the fuel quantity, the air quantity and the coal-water ratio is realized, the response speed of the boiler to the load change is improved, and the combustion efficiency and the steam quality are improved.

The utility model belongs to the field of aircraft fuel systems, and relates to an anti-negative overload oil supply device which comprises an oil tank, an oil delivery pipe connector is arranged at the top of the oil tank, an oil supply pipe connector is arranged on the side face of the oil tank, an oil suction pipe is arranged in the oil tank, and an oil outlet of the oil suction pipe is communicated with the oil supply pipe connector. Due to the fact that the three partition plates are distributed on the periphery of the oil suction port in the oil tank, air can be effectively prevented from entering the oil suction port. Therefore, the negative overload resistant small box can still supply oil continuously under the negative overload condition, and the negative overload resistant oil supply capacity is high.

The present invention relates to a hot zone gas processing unit for a solid oxide fuel cell. It is used for gas processing in a fuel cell stack, comprising a combustion tube with a mixer placed horizontally inside, a combustion chamber formed at the lower end of the mixer, an anode exhaust gas delivery pipe and a cathode exhaust gas delivery pipe provided at the upper end of the mixer, both of which are connected to the fuel cell stack and whose lower end is connected to the combustion chamber, and an igniter placed in the combustion chamber; a preheating tube and a heat exchanger are fitted onto the combustion tube, a deionized water delivery pipe, a fuel delivery pipe, and a mixed gas delivery pipe provided on the outside of the preheating tube, the mixed gas delivery pipe being connected to a reformer, a reforming delivery pipe at the lower end of the reformer passing through the heat exchanger and connected to the fuel cell stack, and an air pipe passing through the heat exchanger and then connected to the fuel cell stack. The present invention generates heat by burning the exhaust gas transported by the anode exhaust gas delivery pipe and the cathode exhaust gas delivery pipe in the combustion chamber, vaporizing the preheated fuel and deionized water, and then, after mixing, the fuel and vaporized deionized water enter the reformer, are heated by the heat exchanger, and then enter the fuel cell stack, thereby achieving heat recovery and utilization.

A gas turbine engine fuel system includes a fuel delivery system, an oil cooling subsystem, a fuel delivery conditioning system, and one or more optical coking sensors. The fuel delivery subsystem delivers fuel to a gas turbine engine and the oil cooling subsystem receives heated oil from the gas turbine engine. The fuel delivery conditioning system includes a fuel / oil cooler that is in fluid communication with the fuel delivery subsystem to receive the fuel and is in fluid communication with the oil cooling subsystem to receive the heated oil. The fuel / oil cooler transfers heat from the oil to the fuel to increase a temperature of the fuel, and the optical coking sensors output a signal indicating a thermal stress of the fuel that occurs with a changing temperature of the fuel. A controller receives the voltage signal determines an onset of coking in the fuel based on the signal.

A fuel delivery system and method for controlling a fuel delivery system includes a fuel control device including a valve and an electronic sensor assembly integrated to the fuel control device and is arranged to detect an operational positioning of the valve, to generate a record of the real-time activation of the valve, and to compare records of real-time activation against a schedule of fuel deliveries to detect unauthorized fuel access.

A fuel delivery arrangement for a generator can include a throttle-mixing assembly including a mixer body defining a main port extending between an air inlet end and a mixed air-fuel outlet end and defining a fuel inlet port extending into the main port, a Venturi structure located within the main port and being configured to mix fuel received from the fuel inlet port with air received from the air inlet end and to deliver an air-fuel mixture to the air-fuel outlet, a fuel control valve assembly, mounted to the mixer body, including a first valve and a first actuator arranged to control a flow of the fuel passing through the fuel inlet port, and a throttle control valve assembly, mounted to the mixer body, including a second valve and a second actuator arranged to control a flow of the air-fuel mixture passing through the main port.

The invention relates to an aircraft linear refueling platform, and belongs to the technical field of aircraft refueling, the aircraft linear refueling platform comprises a ground well pit body, a refueling unit, a lifting body, a folding refueling arm, a movable connecting arm, a well lid body and a lifting mechanism, the refueling unit is arranged in the ground well pit body, and the refueling unit is connected with a pre-buried oil pipe below an airport apron; the refueling unit is used for filtering fuel oil, the lifting body is slidably arranged in a ground well pit body in the vertical direction, the folding refueling arm is arranged on the lifting body, and the folding refueling arm is used for being unfolded to an aircraft refueling port for refueling or folded on the lifting body for storage. One end of the movable connecting arm is connected with the refueling unit, the other end of the movable connecting arm is connected with the folding refueling arm, and the movable connecting arm is used for conveying fuel oil. The refueling platform has the advantages that when refueling is not conducted, the refueling platform does not occupy the space of the airport additionally, and the possibility that the refueling platform interferes with other equipment of the airport is reduced.

This invention relates to a gaseous fuel delivery arrangement for a vehicle. The fuel delivery arrangement comprises a compressor for compressing gaseous vehicle fuel and a control arrangement configured to operate the compressor. The compressor comprises a piston arrangement arranged for reciprocating movement along a piston axis, and at least one compression chamber in which gaseous fuel is compressed by movement of the piston arrangement along the piston axis, in use. The control arrangement is configured to operate the compressor so that the piston arrangement performs a partial stroke during compression, so that an unswept portion of the compression chamber, that is not swept by the piston arrangement, is larger than if the piston arrangement performs a full stroke during compression.

A pumping assembly for a fuel delivery vehicle having main and auxiliary inlets, an outlet, and one or more hose connections. A pump moves fluid through the assembly, and the fluid can pass through a filter separator to remove contaminants. A specific manifold in combination with multiple, two-way valves enable control of the fluid flow to produce multiple fluid pathways. At least ten different configurations are available depending on the need. The assembly is mounted in a frame that is mounted to a vehicle, such as a fuel truck. In some cases, sensors are employed to measure and monitor various parameters throughout the assembly.

A aircraft gas turbine engine and operation method, the engine including: a staged combustion system having pilot and main fuel injectors, and operates in a pilot-only range wherein fuel delivers to pilot fuel injectors, and a pilot-and-main operation range wherein fuel is delivered to at least the main fuel injectors. The engine further includes a fuel delivery regulator to pilot and main fuel injectors, which receives fuel from a first and second source containing fuels each with different characteristics. The staged combustion system switches between pilot-only and pilot-and-main range operation when in steady cruise mode, the mode defining a boundary between first and second engine cruise operation range. The fuel delivery regulator delivers fuel to pilot fuel injectors during at least part of the first engine cruise operation with different fuel characteristics from fuel delivered to one or both pilot and main fuel injectors the second engine cruise operation range.

The invention provides a high-Mach-number boron powder ramjet engine based on air fluidization. The high-Mach-number boron powder ramjet engine comprises a boron powder conveying module and a kerosene conveying module. The boron powder conveying module can convey boron powder to the combustion part; the kerosene conveying module can convey kerosene to the combustion part; and the combustion part is provided with a stable combustion support plate. The problems of boron powder conveying and ignition stable combustion of the high-Mach-number boron powder ramjet engine based on air fluidization are solved, and incoming flow air is directly used as driving gas and fluidizing gas to fluidize boron powder fuel; kerosene is combusted, and injected fluidized air generates a high-temperature low-speed oxygen-enriched area behind the stable combustion support plate, so that removal of an oxide layer on the surface of the boron powder fuel is accelerated, and the combustion effect of the boron powder fuel is improved. The problem that in the prior art, a boron powder fuel conveying system is too complex to be integrated with an engine system is solved, the defects that reliable ignition and stable combustion are difficult to achieve due to the poor ignition combustion characteristic of boron powder fuel are overcome, and high integration of the boron powder fuel conveying system and the engine and ignition stable combustion of the boron powder fuel are achieved.

The novel oiling machine oil gun comprises an oil gun shell, the oil gun shell comprises a connecting part and a handheld part from top to bottom, an oil conveying inner pipe corresponding to an oil inlet of an airplane is arranged on the inner side of the connecting part, and an oil conveying outer pipe corresponding to an oil outlet of the airplane is arranged on the outer side of the connecting part. A clamping head which is clamped and fixed with a clamping groove in the outer side of an airplane oil inlet is arranged on the connecting part in a sliding manner, and a thrust assembly is arranged on the connecting part and is used for clamping the clamping head; and a pressing valve for controlling fuel delivery is arranged on the handheld part. The aircraft fuel oil filling device has the beneficial effects that through cooperation of the clamping head and the thrust assembly, the clamping head can be rapidly and stably fixed in the clamping groove in the outer side of the aircraft fuel oil inlet, the loosening risk in the fuel oil filling process is reduced through reliable fixation of the clamping head, and therefore fuel oil leakage is avoided, and the overall safety in the fuel oil filling process is greatly improved; and potential safety hazards are reduced.

The utility model discloses a black-start pump skid for a marine generator set, and relates to the technical field of auxiliary starting of generator sets. A pneumatic pipeline is arranged on one side of the top end of the base and comprises an electromagnetic valve, a pump unit is arranged at the top end of the base and comprises a pneumatic motor and a pump body, the electromagnetic valve is connected with the pneumatic motor, and a medium conveying pipeline is arranged on the side, away from the pneumatic pipeline, of the top end of the base. And the pneumatic motor is used for driving the pump body to convey a medium in the medium conveying pipeline. Air in the air bottle of the ship body is processed through the pneumatic pipeline and connected with the pneumatic motor, pressure energy of compressed air is converted into mechanical energy through the pneumatic motor, the mechanical energy is supplied to the pump body connected with the pneumatic motor, and the pump body obtains power to drive media in the medium conveying pipeline connected with the pump body. Therefore, the purpose of stably conveying power fuel oil to the generator is achieved.

According to an aspect of the present application, there is provided a radially deformable volume splitter (100; 200) for a fuel injection system (1) of a spark-ignition engine (2). The volume splitter (100; 200) can be tubular and elongate, extending along a longitudinal axis from a first end (102) to a second end (104). The volume splitter (100; 200) can comprise a deformable longitudinal slot (116) operable to deform the volume splitter (100; 200) radially from a first state for insertion into a cavity (18; 218) of the emulsion injection common rail (10) to a second state for use within the cavity (18; 218), and a set of slots (112a-112k) arranged on an outer surface (106) of the volume splitter (100; 200) to connect, in use, an inlet (20) of the cavity (18; 218) to one or more outlets (22a-22d) of the cavity (18; 218).

Fuel delivery vessels and vehicles are described. Some embodiments include nozzles for access by an operator. Some embodiments include optimized size and material characteristics. Some embodiments include various dispensing systems.

A fuel injector (10, fig.1) for delivering gaseous fuel to an internal combustion engine, the fuel injector (10) comprising a valve needle (30, fig.1) which is engageable with a valve needle seat (20,

The invention relates to the technical field of fuel conveying devices, and discloses a conveying device for thermal power plant fuel treatment and a method thereof.The conveying device comprises conveying equipment, partition plates and a storage bin, the storage bin is arranged outside the conveying equipment, the partition plates are evenly arranged in an inner cavity of the conveying equipment, and a servo motor is arranged at the top of the storage bin; the output end of the servo motor is connected with the stirring rod, the servo motor drives the stirring rod to rotate, the fuel in the storage bin can be stirred, the fuel is prevented from caking due to accumulation, the looseness of the fuel is guaranteed, and follow-up quantitative feeding is facilitated. According to the conveying device and method for fuel treatment of the thermal power plant, the collection box at the bottom of the hollow column facilitates collection and cleaning of filtered dust, stable rotation of the fan blade set can be guaranteed through the spherical bearing, the dust removal effect is further improved, and the whole device is more stable through the synergistic effect of all mechanisms; the stability, the high efficiency and the environmental protection property of fuel treatment and conveying are enhanced, and meanwhile, the use convenience is improved.

A diagnostic system for an engine system comprising a plurality of engine cylinders (30) and an air intake manifold (44) for receiving an intake of air during an intake phase of an engine cycle, the diagnostic system comprising; a plurality of fuel injectors (46), each for delivering fuel to an associated one of the engine cylinders (30) via the air intake manifold (44), wherein each of the plurality of fuel injectors (46) has an injector-open state when the fuel injector (46) is delivering fuel during the air intake phase of the associated engine cylinder (30) and an injector-closed state when the fuel injector (46) is not delivering fuel; and a sensor configured to measure the air pressure in the air intake manifold. The diagnostic system further comprises a controller (18) configured to determine an occurrence of a backfire event in the air intake manifold (44) on the basis of the measured air pressure; measure the number of backfire events in the air intake manifold which are associated with one of the fuel injectors (46); compare the number of backfire events with a predetermined count threshold, and, if the measured number of backfire events is greater than the predetermined count threshold, output a warning signal.