416 results about "Liquid fuel" patented technology

An integrated process having an ultra-low GHG footprint for converting Camelina based biomass to liquid fuels and lubricant base stocks in which a Camelina based biomass feed is converted to liquids by a multistep hydroprocessing method and the liquids are upgraded to produce premium hydrocarbon fuels and lubricants.

A gas turbine engine, comprising: a compressor section, a combustion section, and a turbine section in a serial flow arrangement, with the combustion section comprising: a combustor liner that at least partially defines a combustion chamber; and a fuel nozzle assembly, comprising: a liquid fuel supply to supply a liquid fuel; a hydrogen fuel supply to supply a gaseous hydrogen fuel; and a fuel nozzle body defining a fuel nozzle assembly centerline, the fuel nozzle body fluidly coupled with the liquid fuel supply and the hydrogen fuel supply to provide the liquid fuel and the gaseous hydrogen fuel to the combustion chamber.

The utility model belongs to the field of hypersonic propulsion, particularly relates to a preheated liquid fuel single droplet generation system under a high-speed incoming flow condition, and aims to solve the problem that in the prior art, a system capable of illustrating different broken forms of preheated liquid fuel single droplets and a droplet breaking kinetic model under the high-speed incoming flow condition is lacked. The kerosene instillation test bench comprises a test bench, a high-speed incoming flow generation system and a kerosene instillation controller, the high-speed incoming flow generation system and the kerosene instillation controller are both fixedly arranged on the test bench, and the input end of the high-speed incoming flow generation system is communicated with the output end of the kerosene instillation controller. According to the method, different broken forms of a single droplet of the preheated liquid fuel and a droplet breaking kinetic model under the high-speed incoming flow condition are clarified, the understanding of the physical process of secondary atomization of transverse injection of different preheated liquid fuels under the high-speed incoming flow condition can be deepened, and meanwhile, a reference is provided for engineering application of an engine injection scheme.

A gas turbine engine, comprising: a compressor section, combustion section, and turbine section in serial flow arrangement, with the combustion section comprising: a combustor liner that at least partially defines a combustion chamber; and a fuel nozzle assembly, comprising: a liquid fuel supply to supply a liquid fuel; a hydrogen fuel supply to supply a gaseous hydrogen fuel; and a fuel nozzle body fluidly coupled with the liquid fuel supply and the hydrogen fuel supply to provide the liquid fuel and the gaseous hydrogen fuel to the combustion chamber.

The invention discloses a rotating detonation afterburner based on centrifugal nozzle discrete injection, and belongs to the technical field of detonation propulsion. The combustion chamber comprises a gas collecting cavity, an injection unit, a centrifugal nozzle, an outer ring and an inner column, wherein an annular detonation combustion chamber is formed between the inner wall surface of the outer ring and the outer wall surface of the inner column. The centrifugal nozzles are uniformly arranged at the intersection of the gas collection cavity and the injection unit in the circumferential direction to realize primary atomization of the fuel oil; the air is accelerated by the injection unit from the air collection cavity and then is mixed with the atomized fuel oil, secondary atomization is achieved, the particle size of liquid drops is remarkably reduced, and the fuel activity and mixing uniformity are improved. The injection unit adopts a Laval nozzle profile, air is accelerated to supersonic speed in the injection unit, and pressure of a combustion chamber is prevented from being transmitted forwards. The rotary detonation engine is suitable for the high-temperature low-oxygen environment, supports the annular combustion chamber configuration and the empty cylinder combustion chamber configuration, can achieve stable rotary detonation detonation and propagation of liquid fuel and air, and provides technical support for engineering application of the rotary detonation engine.

A combustion device and a method for operating the same are disclosed. The combustion device uses at least 90 wt% of a propylene glycol-based liquid fuel and includes a first fuel tank, a second fuel tank, a pipe, and a driving unit. The first fuel tank is configured to contain the propylene glycol-based liquid fuel and is provided with a metal wick. A sensing unit is disposed in the first fuel tank and is configured to receive a start signal and to sense a liquid level of the propylene glycol-based liquid fuel in the first fuel tank, and to send a refueling signal. The second fuel tank is configured to contain the propylene glycol-based liquid fuel. The pipe is configured to communicate the first fuel tank and the second fuel tank. The driving unit is disposed on the pipe and is configured to receive the refueling signal, and to supplement the propylene glycol-based liquid fuel in the second fuel tank to the first fuel tank via the pipe, so as to achieve the effects of automatic refueling and cooling the wick.

The present invention relates to particular combustors, and e.g., to a combustor comprising a central primary fuel lance, a pilot fuel conduit, a primary oxidant conduit, a secondary oxidant conduit, and optionally a secondary fuel conduit, which are arranged in a particular and advantageous manner so as to surround each other at least in their downstream sections. The invention also relates to a furnace comprising the burner and a method of operating the burner. The burner according to the invention provides, in particular, a particularly advantageous way that comprises a pilot burner as part of the main burner in order to ignite a liquid fuel flame in a cold furnace. If desired, the pilot flame may help extend the flammability limit or operating range of the liquid fuel burner.

The utility model relates to the technical field of kitchen utensils, and provides a novel furnace end which comprises a furnace end body provided with a combustion cavity, an ignition needle used for igniting liquid fuel and a heating device used for preheating the liquid fuel to promote gasification of the liquid fuel are arranged on the combustion cavity, and the furnace end body is provided with an air inlet device. A plurality of circles of air inlet channels which are arranged at intervals in the circumferential direction and penetrate through the side portion of the combustion cavity are formed in the side portion of the combustion cavity, the input end of the air inlet device communicates with outside air, the output end of the air inlet device communicates with the air inlet channels, and the outside air enters the combustion cavity through the air inlet device and the air inlet channels and forms spiral airflow spirally flowing in the combustion cavity. After being gasified, the liquid fuel is mixed with the spiral air flow, so that the gasified liquid fuel is fully combusted, and the technical problem that carbon black is easily generated in a combustion cavity due to insufficient combustion after the liquid fuel of an existing furnace end is gasified is effectively solved.

The application relates to the technical field of quick connectors, in particular to a liquid fuel loading and unloading quick connector capable of reducing residual liquid discharge, which comprises a connector pipe, a valve core, a telescopic mechanism arranged on one end of the valve core close to an outlet of the connector pipe, and a control mechanism arranged on the connector pipe and in transmission connection with the valve core and the telescopic mechanism. The control mechanism is used for controlling displacement of the valve core, so that a sealing surface of the valve core is in contact with or separated from a counter connector, the connector pipe is blocked or opened, and the telescopic mechanism is synchronously controlled to be retracted or extended by the control mechanism when the valve core is displaced. In use, the control mechanism is used for controlling displacement of the valve core, the connector pipe is blocked and opened, the telescopic mechanism is used for changing a flow area of the liquid fuel in the connector pipe, the liquid fuel is conveniently passed, and residual liquid is discharged.

The application discloses a kind of adjustable liquid fuel atomizing nozzles, multiple tangential grooves are formed uniformly in the circumferential direction in the inner wall of the core swirl part of swirl core before core swirl part;Center body adjusting surface part and swirl chamber main part wall and swirl chamber contraction part wall form swirl chamber cavity, liquid is sprayed into swirl chamber from tangential groove, and does centrifugal motion in swirl chamber cavity, and finally is sprayed from nozzle outlet;Center body adjusting surface part is inserted into the core swirl part of swirl core and cooperates with the gap between the inner wall of core swirl part, increase the depth of center body adjusting surface part inserted into the core swirl part of swirl core, can reduce the cross-sectional area of tangential groove, make swirl intensity strengthen, atomization angle increase, atomization effect is improved.The adjustable liquid fuel atomizing nozzle of the application can be applied to various occasions, can make the application range of various products wider, more flexible, and can adjust atomization characteristics according to actual situation.

The utility model discloses a kind of vaporization combustion furnace heads, the furnace head is divided into two parts, different materials can be prepared, a vaporization cavity is provided in each part, two vaporization cavities are communicated by external elbow connector pipe, by setting two vaporization cavities to sufficiently vaporize liquid fuel, improve combustion quality, liquid fuel connector, gas nozzle, ignition needle, safety needle and electrode are set on the lower end head located below, install steel sleeve in combustion space to protect upper connector, simultaneously block the gap between upper connector and lower end head, improve the use experience of furnace head whole.

The invention discloses a fuel cell air supply system based on liquid fuel reforming and an operation method. The system comprises an air filter, the output end of the air filter is connected with an air compressor through a gas pipeline, and the outlet end of the air compressor is connected with a cooler through a gas pipeline; the outlet end of the cooler is connected with a gas buffer tank, the output end of the gas buffer tank is connected with two types of output pipelines, the first type is a fuel cell gas supply pipeline and comprises a first fuel cell air path regulating valve, a second fuel cell air path regulating valve, a third fuel cell air path regulating valve and an Nth fuel cell air path regulating valve, and the Nth fuel cell air path regulating valve is a fuel cell gas supply pipeline. And the second type is a fuel processor gas supply path. According to the system, a single air compressor is matched with a plurality of high-temperature proton exchange membrane fuel cells and a fuel processor, so that the system process is simplified, parts are reduced, and the system reliability is improved; in the starting stage, the rotating speed of the air compressor is adjusted to be matched with the effective drift diameter of the fuel processor air path adjusting valve, surge of the air compressor is avoided, and the service life of the system is prolonged.

The present invention provides a system (1) to prevent the formation of fuel vapors comprising a containment tank (10) and a variable volume tank (12) accommodatable within the containment tank (10), wherein the variable volume tank (12) is configured to receive liquid fuel. Our invention can be used in any tanks or reservoirs of liquid products that attack the ozone layer, preventing the formation of vapors that are extremely harmful to nature and the environment.

The invention belongs to the technical field of ignition, and discloses a three-component pintle rotational flow torch igniter. According to the three-component pintle rotational flow torch igniter, liquid fuel is jetted through the central pintle rotational flow nozzle, and a gas oxidizing agent is jetted through the peripheral rotational flow nozzle. The liquid fuel from the pintle swirl nozzle moves in the radial direction, and the gas oxidizing agent from the swirl nozzle rotates in the axial direction, so that the interaction between the liquid fuel and the gas oxidizing agent is enhanced, the atomization quality is improved, and the ignition success rate is further improved. Besides, the flame temperature of the torch igniter is increased through secondary oxygen or air jetted from the body part of the torch igniter, and meanwhile, the wide-range adjustment of the flame temperature of the torch igniter is realized. The device is suitable for large combustion devices such as liquid rocket engines, gas generators and combustion heaters.

This invention discloses a temperature control system suitable for liquefied fuel tanks. It is characterized by comprising: a cold source, which is the usable cold energy generated during the liquid-to-gas conversion of liquid fuel in the liquefied fuel tank or cold energy provided by electricity; a cooling branch, where the cold source and temperature control medium flow simultaneously into the cooling branch, and the cold source cools the temperature control medium; and a temperature control medium circulation pipeline, which allows the temperature control medium to circulate between the compartments surrounding the liquefied fuel tank and the cooling branch, thereby lowering the ambient temperature in the compartments surrounding the liquefied fuel tank and maintaining the external environment of the liquefied fuel tank located in the compartments surrounding the liquefied fuel tank at a lower temperature. This invention reduces the generation of evaporative gases, avoiding excessive waste of evaporative gases under low-load ship conditions; the system is simple, has low initial investment, occupies little space, and consumes little electricity.

An injector assembly for a gas turbine for introducing a gaseous fuel, liquid fuel and air into a combustion chamber, includes an injector shaft and an injector main body aligned along an injector longitudinal axis. The injector main body includes a first gas duct arranged centrally on the injector longitudinal axis, for introducing a gas flow into the combustion chamber; an air duct arranged radially around the outside of the first gas duct, and a liquid fuel injection arranged radially around the first gas duct for introducing the liquid fuel into the combustion chamber. The injector assembly introduces the gaseous fuel. The injector assembly is switchable between two configurations during operation: in a first configuration, air flows through the first gas duct, as an air injection; in a second configuration, the gaseous fuel flows through, as a gas fuel injection.

The invention relates to a method (100) for cooling a fuel (B) for a vessel (80), the vessel (80) having at least one fuel tank (12) and a liquefied gas storage tank (14), comprising the following steps:-(102) extracting a fuel flow (BS) from the liquid phase of the fuel (B) contained in the fuel tank (12),-(104) guiding the fuel flow (BS) into a cooling unit (20); -(106) cooling the liquid fuel flow (BS) in the cooling unit (20), the fuel flow (BS) in the cooling unit (20) being cooled relative to a BOG flow (BGr) which is conducted from the liquefied gas storage tank (14), is reliquefied and is conducted through the cooling unit (20), and-(108) conducting the cooled fuel flow (BSk) back into the fuel tank (12).

The present application relates to the field of liquid fuel pipeline simulation, and discloses a kind of multi-variety liquid pipeline sequential transport hydraulic simulation method and system based on dynamic interpolation method, can be in the multiple division pipe sections of multi-variety liquid fuel pipeline sequential transport simulation model, select the two adjacent pipe sections for transporting different varieties of liquid fuel. According to the maximum fuel wave speed in the model, each adjacent pipe section is respectively grid divided, and at least one grid node in each adjacent pipe section is determined. The relative position relationship between the oil mixing interface and the grid node in the two adjacent pipe sections is monitored. According to the relative position relationship, the fuel wave speed of the grid node, the maximum fuel wave speed and the dynamic interpolation method, the flow and pressure head of at least one grid node are determined. The present application can accurately depict the multi-variety liquid fuel pipeline sequential transport process, realize the accurate simulation of sequential transport scene, and effectively enrich the multi-variety liquid pipeline sequential transport hydraulic simulation method.

This application relates to an oil-gas balance valve assembly, belonging to the field of dual-fuel control technology. It includes: a valve body with an interconnected inlet and outlet channel, and a valve core connected within the valve body for adjusting the flow area between the inlet and outlet channels; an upper valve cover sealed to the valve body, forming a chamber with the valve body, and a diaphragm dividing the chamber into an upper and lower diaphragm chamber; one end of the valve core extending into the lower diaphragm chamber; and an inlet on the upper valve cover for injecting liquid fuel into the upper diaphragm chamber. The diaphragm reciprocates according to the pressure of the liquid fuel in the upper diaphragm chamber. The diaphragm of this application can expand and contract according to the pressure change of the liquid fuel in the upper diaphragm chamber, thereby pushing the valve core to reciprocate and adjusting the flow area between the inlet and outlet channels. This achieves automatic adjustment of the gaseous fuel intake flow based on the pressure of the liquid fuel, solving the problem of large fluctuations in natural gas pressure control.

This utility model discloses a liquid fuel oil gasification burner head, including an outer shell, an inner liner, a multi-layered sleeve-type gasification core, and a high-pressure ignition needle. The inner liner is nested inside the outer shell to form a U-shaped annular sealed space, and the inner liner wall is provided with upwardly inclined air injection holes. The core is vertically arranged at the center of the inner liner and consists of an inner thin tube, a middle coarse tube, and an outer conical sleeve, forming a two-stage oil passage: the inner thin tube and the middle coarse tube form a first oil passage, and the outer conical sleeve and the middle coarse tube form a second oil passage. An oil outlet is opened at the bottom of the outer conical sleeve, and the tube wall is provided with upwardly inclined air holes. The tip of the high-pressure ignition needle is directly opposite the oil outlet. The technical solution of this utility model can extend the heating path of fuel oil through the multi-layered sleeve, realize the complete gasification of high / low flash point fuel oil (such as ethylene glycol, light white oil, alcohol-based fuels, etc.), and solve the problems of traditional burners not being able to achieve small-flame combustion, incomplete combustion, and black smoke after ignition and shutdown.

The utility model discloses an efficient energy-saving liquid fuel burner which comprises an operation table, a burning assembly is installed on the top of an inner cavity of the operation table, a liquid supply assembly is connected to the bottom of the burning assembly, and a gas supply assembly is connected to one side of the burning assembly. The combustion assembly comprises a combustion chamber installed at the top of an inner cavity of the operation table in a penetrating mode, the air supply assembly comprises a supporting plate fixedly installed on the inner side wall of the operation table, and an air blower is installed at the top of the supporting plate. Air is exhausted into the annular pipe in the combustion chamber through the air inlet pipe and finally exhausted into the combustion chamber through the multiple sets of air outlet pipes, the air forms an airflow vortex in the combustion chamber by means of the inclined connection relation between the multiple sets of air outlet pipes and the outer side of the annular pipe, and the effect of fully mixing the air and atomized liquid is achieved; the combustion efficiency of the liquid fuel is improved.

An internal combustion engine includes a tank that stores liquid fuel, a cylinder, an intake port connected to the cylinder, a port injection valve that injects fuel into the intake port, a pressurizer that pressurizes fuel vapor in the tank, and a low-pressure passage that connects the pressurizer and the port injection valve to each other.

The invention relates to the technical field of renewable energy sources, and discloses a biomass catalytic pyrolysis coupling online upgrading liquid fuel preparation reaction device which comprises a base, the upper surface of the base is fixedly connected with a discharging mechanism, the upper surface of the base is provided with a feeding assembly, and the feeding assembly is located at the bottom end of the discharging mechanism; a first pyrolysis mechanism is fixedly connected to the lower surface of the first fixing shell, the bottom end of the first pyrolysis mechanism is fixedly connected to the upper surface of the base, a reaction mechanism is arranged at one end of the connecting pipe, an auxiliary assembly is fixedly connected to the upper surface of the reaction mechanism, and a storage tank is arranged at the bottom end of the reaction mechanism. And a filtering mechanism is mounted in the base. When a material distributing plate of the feeding assembly rotates to a connecting frame, a sliding plate is driven to compress a spring and press an injection pipe button, after the material distributing plate leaves, the spring pushes a component to reset, injection pauses, medium injection is matched with raw material conveying rhythm, and it is ensured that pyrolysis oil gas and media are fully mixed and reacted.

The utility model discloses an oil vaporization combustion structure of liquid fuel combustion body's, including base, vaporization combustion cylinder and cyclone air inlet cylinder, the export of oil inlet is equipped with atomization combustion net in, be equipped with vaporization combustion sticky net in vaporization combustion chamber, vaporization combustion sticky net is close to the inside wall of vaporization combustion cylinder, be equipped with the through -hole of being convenient for liquid fuel ejection on vaporization combustion sticky net. Compared with prior art, the atomization combustion net in the oil inlet meets the primary ignition condition of liquid fuel, after ignition success, liquid fuel is directly sprayed into vaporization combustion chamber, and under the cyclone effect, can be dispersed more widely, and the area of vaporization combustion sticky net is larger, and it is easier to disperse and form oil film, and the liquid fuel that is not completely vaporized will be thrown on vaporization combustion sticky net, and form oil film and burn, be favorable to the vaporization combustion of liquid fuel, and the double -deck vaporization combustion sticky net structure design can realize liquid fuel better dispersion and vaporization combustion, and adapt to high temperature environment.

The invention relates to the technical field of vehicles, and discloses a carbon-free tank type oil gas recovery system and a vehicle, the carbon-free tank type oil gas recovery system comprises a high-pressure fuel tank, the high-pressure fuel tank is used for storing fuel oil and sealing gasoline steam in the fuel tank; the condenser is connected with an internal gas chamber of the high-pressure fuel tank through a gas inlet pipe and is used for receiving and condensing fuel steam from the high-pressure fuel tank; the recovery pipeline is connected between the condenser and the high-pressure fuel tank and is used for guiding liquid fuel formed after condensation into the high-pressure fuel tank; the one-way valve is arranged on the recovery pipeline and is used for preventing the fuel steam from flowing back through the recovery pipeline; and the high-pressure fuel tank isolation valve is communicated to one end, close to the recovery pipeline, of the condenser, and is used for controlling the pressure release and sealing of the high-pressure fuel tank. Oil gas is recovered for the plug-in hybrid electric vehicle through the design of the carbon-free tank.

This invention relates to the field of chemical / energy fuel technology, specifically disclosing a method for upgrading and recycling waste plastics to prepare renewable liquid hydrocarbon fuels. This method integrates steps such as pretreatment, solvent dissolution, impurity separation, catalytic degradation, and product separation and purification. On one hand, it precisely controls the molecular chain breaking process of various types of waste plastics through catalytic degradation, ensuring that the carbon number of the degradation products is mainly concentrated in the C5~C5 range. 18+ Within this range, high-quality components, mainly liquid hydrocarbon fractions, are obtained that can be directly used as recycled gasoline and sustainable aviation fuel. On the other hand, through the efficient separation and recycling of solvents and ionic liquid catalysts, the closed-loop use of solvents / ionic liquid catalysts and the high selective enrichment of products are realized, forming a closed-loop path of "waste plastics - liquid fuels - carbon cycle", realizing the high-value and low-carbon transformation of waste plastics into renewable liquid hydrocarbon fuels.

The application relates to a solid oxide co-electrolysis driven carbon cycle liquid fuel preparation system, which comprises a solid oxide electrolysis device configured to produce synthetic gas; a Fischer-Tropsch device in pipeline communication with the solid oxide electrolysis device; a multi-component separator in pipeline communication with the Fischer-Tropsch device; a feeding device in pipeline communication with the multi-component separator; and a combustion device in pipeline communication with the multi-component separator and the Fischer-Tropsch device. Hydrogen and the like can be sent into the feeding device to form gas raw material supplement and recycling, carbon monoxide and hydrogen can also be sent into the combustion device to generate high-temperature combustion products, the high-temperature combustion products are transported to the solid oxide electrolysis device, the gas raw material can be heated, high-temperature heat recovery is realized, and a high-grade heat source is provided for the solid oxide electrolysis device; therefore, the energy utilization efficiency of the system and the yield of the synthetic liquid fuel are remarkably improved.

The objective is to provide a burner that can suppress the generation of soot. [Solution] A burner comprising: a first air passage that supplies combustion air from an air supply unit to a first air outlet; a second air passage that supplies combustion air from the air supply unit to a plurality of second air outlets arranged to surround the first air outlet; a liquid fuel supply pipe provided in the first air passage for ejecting liquid fuel; and a rectifier plate that obstructs a predetermined portion of the second air passage to control the amount of combustion air ejected from each of the plurality of second air outlets.

A fuel composition for producing an emulsion explosive composition comprises a mixture of a liquid fuel and an emulsifying agent, wherein the emulsifying agent comprises nanoparticles in a weight % that is from about 0.05% to about 2% of the weight of the fuel composition.

A gas-liquid two-phase rotating detonation combustion chamber for inhibiting pressure back transmission relates to the technical field of combustion chamber pressure back transmission inhibition of air-breathing rotating detonation engine, and aims to solve the problem that the existing rotating detonation combustion cannot simultaneously consider pressure back transmission inhibition and ram loss. The utility model discloses the communication of air inlet pressure stabilizing section, pressure inhibition section and combustion section in proper order, one side of the Tesla valve flow channel in the pressure inhibition section is communicated with the gas oxidant channel of air inlet pressure stabilizing section, the other side is communicated with the combustion channel of combustion section, the clearance between the Tesla valve shell and the pressure inhibition section shell forms the main flow channel of the Tesla valve flow channel, the clearance between the Tesla valve shell and the combustion chamber inner column forms the pressure back transmission channel of the Tesla valve flow channel, and the liquid fuel cavity is located between the Tesla valve flow channel and the combustion channel. The utility model utilizes the 'fluid diode' characteristics of the Tesla valve to effectively inhibit the detonation pressure back transmission, reduces the total pressure loss of inlet air, and improves the performance of the rotating detonation combustion chamber.