707results about "Gaseous engine fuels" patented technology

A fuel reforming system for a vehicle on which a reciprocating engine is mounted is provided can comprise a decomposer to decompose hydrocarbon fuel into carbon and hydrogen gas by using heat and a pressure of combustion gas and a catalyst and to hold carbon. The decomposer can communicate with a combustion chamber via an openable / closable third port. A reforming space in which a reforming member including the catalyst is installed can be on the side of a connection portion of the decomposer with the third port. On an opposite side of interior of the connection portion of the decomposer with the third port, an additional space is provided to accommodate residual gas that remains in the third port and the decomposer when combustion gas is introduced into the decomposer through the third port.

The present invention relates, in general, to systems and methods for generating hydrogen from ammonia on-board vehicles, where the produced hydrogen is used as fuel source for an internal combustion engine. The present invention utilizes an electric catalyst unit operating in series with a plate-type heat exchange catalyst unit. The electric catalyst unit is used to initiate an ammonia cracking process on-board during a cold start or low load operating condition of the internal combustion engine, where the ammonia cracking process occurs in the heat exchange catalyst unit once exhaust gas from the internal combustion engine has been heated to a threshold temperature suitable to perform the ammonia cracking process.

The invention relates to the technical field of hydrogen internal combustion engines, in particular to a water-hydrogen combined supply internal combustion engine which comprises a first power generation unit driven by hydrogen and air combusted by a hydrogen internal combustion engine unit. The gas recovery unit converts water vapor in exhausted gas into liquid water through a condensation driving module and drives the second power generation unit at the same time; the fuel supply unit adjusts the hydrogen injection amount through a generated adjusting instruction based on multi-dimensional data detected by the monitoring unit and processed by the data processing unit and the confidence decision-making unit, and then generation of nitric oxide is inhibited. Condensate water recovery and combustion control of the hydrogen internal combustion engine are deeply combined, the actual exhaust humidity is reversely deduced by monitoring the flow of the condensate water, the gas detection error tolerance range is dynamically corrected, the hydrogen-oxygen combustion ratio judgment result is linked, safety amplitude limiting control over hydrogen fuel supply is achieved, and nitrogen oxide generation of the hydrogen internal combustion engine is reduced.

An ammonia-rich combustion coupled dual-mode prechamber ammonia-fueled engine control system is provided, including an ammonia-fueled engine and an electronic control unit. The ammonia-fueled engine includes a combustion chamber, a dual-mode jet ignition device, and an ammonia injector. The dual-mode jet ignition device includes a prechamber, an air injector, and a fuel injector. When the engine operates, ammonia fuel is firstly injected into the combustion chamber by the ammonia injector to form a rich ammonia-air mixture with air in the combustion chamber. During a compression stroke of the engine, the rich ammonia-air mixture in the combustion chamber is entered into the prechamber through a jet hole. The air injector performs scavenging in the prechamber until a equivalence ratio of prechamber gas mixture is less than 1.0, and then the fuel injector injects fuel into the prechamber forming target mixture. Finally, the target mixture is ignited by the spark plug.

The invention discloses a catalytic combustion auxiliary preheating ammonia-hydrogen engine system and an operation method, the catalytic combustion auxiliary preheating ammonia-hydrogen engine system comprises an ammonia decomposition system, a NOx decomposition system, an ammonia-hydrogen engine, a flameless combustion system, an air source and an ammonia gas source, a preheating cooling cavity rapidly heats the inner wall surface of a combustion cavity to reach the temperature required by flameless combustion; tail gas generated by combustion further preheats all parts of the ammonia decomposition system and the NOx decomposition system, the response speed in the starting stage is increased, and in the normal operation stage, high-temperature combustion tail gas generated by flameless combustion is sequentially introduced into the heating cavity and the combustion tail gas heat supply cavity to heat the ammonia decomposition cavity so as to decompose ammonia gas in the ammonia decomposition cavity into hydrogen, and the hydrogen is converted into nitrogen; and the NOx decomposition cavity is heated to decompose NOx in the tail gas of the engine into NO, the combustion-supporting mixed gas is preheated through the preheating cooling cavity and then sprayed into the combustion cavity, the combustion-supporting mixed gas is mixed with ammonia gas for flameless combustion, and flameless combustion is further assisted.

A method for mitigating preignition events in a hydrogen internal combustion engine. The method includes providing a dosing system in fluid communication with a dosing cylinder of a cylinder block of the hydrogen internal combustion engine; introducing a lubricant including a base oil, a polymer, or mixtures thereof to an intake area of the dosing cylinder via the dosing system; and initiating operating conditions for the hydrogen internal combustion engine.

The invention relates to the technical field of hydrogen internal combustion engines, and discloses a hydrogen internal combustion engine power generation system and method based on AI control, and the system comprises the following modules: a receiving module which is used for receiving an operation instruction from a driver, and the operation instruction comprises an expressway power generation instruction and a static charging instruction; the coupling control module comprises a processor unit and an AI control unit; the processor unit is responsible for data transmission operation; the AI control unit is used for receiving the operation instruction, responding to the operation instruction and controlling operation of a vehicle-mounted generator; and the vehicle-mounted generator is connected with the coupling control module and is used for converting hydrogen energy into electric energy. The invention discloses an AI-controlled hydrogen internal combustion engine power generation system and method, and mainly solves the problems of low energy utilization efficiency, poor operation flexibility and incapability of effectively relieving mileage anxiety caused by the fact that a vehicle-mounted range extender of an existing electric vehicle is passively started only by depending on a preset charging state threshold value of a main battery and does not consider the intention of a driver and a stroke situation.

An engine device supplies a low GHG fuel having low greenhouse gas emissions to drive an engine. The engine device 1 includes a liquid fuel tank, which is a storage unit that stores a fuel in a liquid state. Waste heat from the engine is utilized to vaporize the fuel supplied from the liquid fuel tank to the engine.

An ammonia mixed combustion engine 1 that operates by burning ammonia and a hydrocarbon liquid fuel causes a control unit 2 to implement at least one of decrease or increase in an air excess ratio in fuel, advance or retard in injection timing of the liquid fuel, and decrease or increase in injection pressure of the liquid fuel in accordance with increase or decrease in a mixed fuel burning ratio of ammonia in the fuel.

The utility model discloses an electric field combustion-supporting jet ignition device and an ammonia fuel engine, and relates to the technical field of internal combustion engines, the electric field combustion-supporting jet ignition device comprises a jet device, an auxiliary electrode, a spark plug and an ammonia sprayer, the jet device comprises a jet device main body and a jet nozzle, and the jet device main body is connected with the jet nozzle to form a pre-combustion chamber; the pre-combustion chamber is communicated with the main combustion chamber; the auxiliary electrode comprises a pre-combustion chamber auxiliary electrode and a main combustion chamber auxiliary electrode, the auxiliary electrode is connected with the control unit through an electrical circuit, and an electric field is formed in the pre-combustion chamber and the main combustion chamber; the spark plug is electrically connected with the control unit through an electrical circuit; and the ammonia spraying device is used for spraying ammonia gas into the pre-combustion chamber through a nozzle outlet of the ammonia spraying device, the ammonia gas is fully mixed with air in the pre-combustion chamber, the mixed gas is ignited at an ignition electrode of the spark plug under the action of an electric field, and the ammonia mixed gas in the main combustion chamber is ignited. Electric field combustion supporting is applied to the jet ignition device, and the combustion reaction rate and the flame propagation speed are increased.

The invention discloses a closed mine in-situ electrolytic hydrogen production-underground energy storage-blast power generation integrated method, which comprises the following steps: firstly, building a mine water underground reservoir in a closed mine, carrying out deep treatment on mine water, and finally, continuously converting the mine water into hydrogen by adopting an electrolytic hydrogen production mode to realize in-situ electrolytic hydrogen production of the mine water. Then a roadway of the closed mine is transformed to form an underground hydrogen storage space used for storing prepared hydrogen; when stable power supply is needed, the hydrogen is conveyed to the explosion engine and combined with the pulverized coal, and pulverized coal-hydrogen mixed explosion power generation is carried out; and products generated after explosion power generation are collected, and resources are recycled after the products are classified. According to the system, mine water resources, closed mine underground space resources and surplus wind and light power are matched with one another, electric energy is converted and stored when being surplus and is released and supplemented in time when needing to be supplemented, and therefore it is guaranteed that electric energy is stably supplied under various weather conditions while waste resources are effectively utilized.

The invention belongs to the technical field of feces treatment, particularly relates to integrated rural toilet feces deep separation treatment equipment, and aims to solve the problems that existing equipment is poor in operation stability and not ideal in total phosphorus and ammonia nitrogen pollutant removal rate, the integrated rural toilet feces deep separation treatment equipment comprises a solid-liquid separation module, an anaerobic treatment tank, an aerobic treatment tank and a liquid-phase flocculation unit, a solid phase and a liquid phase of feces are separated through the solid-liquid separation module, the liquid phase is flocculated through the liquid phase flocculation unit, the liquid phase and the solid phase are put into corresponding fermentation areas of the anaerobic treatment tank to be subjected to anaerobic fermentation treatment, the liquid phase is conveyed to the aerobic treatment tank to be subjected to further aerobic treatment, and the liquid phase and the aerobic treatment tank are subjected to anaerobic fermentation treatment. The integrated treatment of solid-liquid separation, anaerobic biogas production and aerobic denitrification of rural toilet feces is realized, the solid phase and the liquid phase after the integrated treatment can be respectively subjected to further resource utilization, and the system is extremely suitable for being used in rural areas.

The invention discloses an ammonia hydrogen fuel engine combustion system and method, and belongs to the technical field of clean energy, the system comprises a shell, the shell is provided with a combustion chamber, a pre-combustion chamber, an air inlet channel and an exhaust channel, and the pre-combustion chamber, the air inlet channel and the exhaust channel communicate with the combustion chamber; the injection valve set comprises an air inlet channel hydrogen injection valve, a pre-combustion chamber hydrogen injection valve, a direct injection hydrogen injection valve and an air inlet channel ammonia injection valve. The supply assembly comprises a hydrogen supply unit and an ammonia gas supply unit, the ammonia gas supply unit supplies ammonia gas to the combustion chamber through a gas inlet channel ammonia gas injection valve, and the hydrogen supply unit supplies hydrogen gas to the combustion chamber through a gas inlet channel hydrogen injection valve, a pre-combustion chamber hydrogen injection valve and a direct injection hydrogen injection valve; switching of the pure hydrogen premixed combustion mode, the pure hydrogen stratified combustion mode and the ammonia-hydrogen mixed combustion mode is achieved by adjusting the injection valve set and the supply assembly, the problems of abnormal combustion, power reduction and NOX and N2O emission existing on the engine are solved, and the operation stability of the engine is improved.

The present disclosure provides a renewable energy utilization system based on nitrogen-free combustion and carbon dioxide recycling. The system includes: an electrolysis unit used to electrolyze water using renewable energy to obtain hydrogen and oxygen; a carbon dioxide collection unit used to collect carbon dioxide gas released during utilization of the renewable energy; a methanol synthesis unit used to synthesize methanol using the hydrogen and the carbon dioxide gas; an internal combustion engine generator set used to perform nitrogen-free combustion of the methanol and the oxygen to generate exhaust gas and electrical energy; and a methanol reforming reaction unit used to catalyze a reforming reaction of the methanol using residual heat of the exhaust gas to obtain synthesis gas, and input the synthesis gas into the internal combustion engine generator set as a fuel for the internal combustion engine generator set.

A carbon capture system for an LNG fueled power plant (1) and method for LNG combustion and carbon capture, wherein the method comprises - gasifying the LNG stream by heating to obtain a gasified NG stream - combusting the gasified NG stream to obtain exhaust gas stream- separating water from the cooled exhaust gas stream to obtain a dry exhaust gas stream - adsorbing CO2 from the dry exhaust gas stream to obtain a CO2 depleted exhaust gas stream - desorbing CO2, pressurizing it and cooling it with the cold from the gasification of the LNG - separating CO2 from the desorbing stream.

A system and method can include a decomposer to decompose hydrocarbon fuel into carbon and hydrogen gas by using heat and a pressure of combustion gas produced in a combustion chamber, and to separate the hydrogen gas by causing the hydrogen gas to permeate a hydrogen permeable membrane. The decomposer can be adjacent to an intake port in a state of communicating with the intake port via the hydrogen permeable membrane, and can be configured to be able to supply the separated hydrogen gas as fuel to the combustion chamber through the intake port.

The invention discloses a lightweight supercharged hydrogen internal combustion engine, which belongs to the field of hydrogen engines and comprises an engine body, a turbocharger, a brake gas storage component, an engine ECU (electronic control unit) and a tail gas treatment device. The turbocharger is adopted to replace an air compressor, waste gas exhausted by the engine drives the turbine to rotate, the gas compressor is driven to suck air and compress the air, and the air is used by the engine and a braking system. The outlet of the turbocharger is provided with the intercooler, the outlet end of the intercooler is communicated with the intake manifold of the engine, and cooled high-pressure air is fed into the engine, so that the operation efficiency is improved. The pressure storage pipeline is arranged between the intercooler and the air inlet manifold and communicated with the air storage tank, under the condition that normal work of the engine is met, redundant high-pressure air is stored in the air storage tank through the pressure storage pipeline to be used by an automobile braking system, and the combustion efficiency of the engine is improved through integrated hydrogen injection. The dynamic property and stability of the engine can be improved.

The invention discloses an inductance and exhaust coupling heating ammonia decomposition hydrogen production system and a control method.The ammonia decomposition hydrogen production system comprises an ammonia decomposition module and an inductance heating module, the ammonia decomposition module comprises an ammonia decomposition shell, a pore channel sealing structure and a plurality of ammonia decomposition pipes, and the ammonia decomposition shell is provided with an exhaust heating cavity; the ammonia cracking pipes are arranged in the exhaust heating cavity, each ammonia cracking pipe is internally provided with an ammonia decomposition heating cavity, the exhaust heating cavity is provided with a plurality of fixing hole channels which are in one-to-one correspondence with the ammonia cracking pipes in the axial direction, and the hole channel sealing structure is used for sealing and opening the fixing hole channels; the inductive heating module comprises a plurality of inductive coils and a driving mechanism in transmission connection with the inductive coils, and the driving mechanism is used for driving the inductive coils to reciprocate in the first direction. The second-level high response requirement is met, vehicle-mounted ammonia decomposition and rapid hydrogen production are achieved, the coils are protected, leakage of high-temperature exhaust is prevented, hydrogen is continuously produced, and the service life of the vehicle is prolonged. And the demand on vehicle-mounted electric power is reduced.

The present invention relates, in general, to a system and method for sequentially energizing heating elements in an electric catalyst unit for ammonia dissociation on-board a vehicle. The present invention utilizes output temperature readings at various sections within the electric catalyst unit, and sequentially energizes corresponding heating elements only if the output temperature of an upstream section is below a threshold temperature required for ammonia dissociation to occur. By sequentially energizing heating elements as needed, versus fully energizing every heating element, the present invention mitigates the risk of degradation and failure of the vehicle power system and other electrical components in the vehicle.

The invention relates to the technical field of hydrogen engines, in particular to a hydrogen internal combustion engine and a scavenging control method of the hydrogen internal combustion engine. The hydrogen internal combustion engine comprises an engine cylinder body assembly, a supercharger, an air filtering device, an air supplementing part, an air outlet part and a control device, the air supplementing part comprises a first air supplementing pipeline and at least two second air supplementing pipelines, and an air outlet of the air filtering device is communicated with the first air supplementing pipeline and an air inlet of the supercharger. One end of the first air supply pipeline is communicated with the air filtering device, the other end of the first air supply pipeline is communicated with the crankcase, the cylinder cover is communicated with an air outlet of the supercharger through at least one second air supply pipeline, the crankcase is communicated with the air outlet of the supercharger through at least one second air supply pipeline, and the air outlet part is communicated with the crankcase. The control device is electrically connected with the air supply part and the air outlet part. According to the hydrogen internal combustion engine, through the design of the multiple gas supplementing pipelines, the hydrogen concentration can be effectively reduced, and excessive hydrogen gathering is avoided.

An engine system includes an engine, a hydrogen generation system, an emission control system, and a heater. The engine receives a fluid mixture of fuel and air and provides an exhaust based on combustion of the fluid mixture. The hydrogen generation system receives ammonia from at least an ammonia source, generates hydrogen from the ammonia, and provides the hydrogen to the engine. The emission control system includes an ammonia recirculation unit that receives the exhaust from the engine and dissolves remaining ammonia in the exhaust into aqueous ammonia, and a hydrogen control unit that receives the exhaust from the ammonia recirculation unit, converts remaining hydrogen in the exhaust into water, and outputs remaining nitrogen in the exhaust. The heater receives the aqueous ammonia from the ammonia recirculation unit, heats the aqueous ammonia to generate dry ammonia, and provides the dry ammonia to the hydrogen generation system.

A system including an engine capable of operating with fuel containing hydrogen, the system being provided with: a crankcase of the engine; an engine intake passage that sucks air into the engine; a crankcase intake passage that branches off from the engine intake passage and introduces air into the crankcase; a dilution air valve that is disposed in the crankcase intake passage and that opens and closes the crankcase intake passage; a compressor disposed upstream of a branch portion branching from the engine intake passage to the crankcase intake passage; a hydrogen sensor that detects a hydrogen concentration inside the crankcase; a crankcase exhaust passage that exhausts air inside the crankcase; and a control device that controls the opening and closing of the dilution air valve on the basis of the hydrogen concentration detected by the hydrogen sensor.

This application relates to the field of waste treatment technology, and more specifically, to a power generation device based on low-temperature magnetic pyrolysis of waste, comprising: at least one pyrolysis unit for thermally decomposing waste; a gas conveying pipeline for collecting and conveying the gas generated in each pyrolysis unit to a combustion chamber; a combustion chamber for combustion using combustible gas as a heat source; a direct-fired generator system disposed above the combustion chamber for using the high-temperature gas in the combustion chamber as a power source to drive the generator to rotate and generate electricity; and an oxygen-enriched gas supply device for supplying oxygen-enriched gas to the combustion chamber to ensure complete combustion of the combustible gas.

The present application relates to hydrogen internal combustion engine technical field, especially to a kind of water hydrogen electricity combined supply internal combustion engine, including by hydrogen internal combustion engine unit combustion hydrogen and air driven first power generation unit;Gas recovery unit by condensation drive module converts water vapor in exhaust gas into liquid water, while driving second power generation unit;Fuel supply unit is based on the multidimensional data obtained by monitoring unit detection, through the processing of data processing unit and confidence decision unit, the generated adjustment instruction adjusts hydrogen injection amount, and then inhibits the generation of nitrogen oxides.The present application combines the condensate water recovery of hydrogen internal combustion engine with the combustion control deeply, the actual humidity of exhaust gas is deduced by monitoring the condensate water flow, the error tolerance range of gas detection is dynamically corrected, and the safety limit control of hydrogen fuel supply is realized by the determination result of hydrogen-oxygen combustion ratio, to reduce the generation of nitrogen oxides of hydrogen internal combustion engine.

The invention discloses a staged cracking ammonia internal combustion engine system which comprises an ammonia supply system, a first-stage catalytic cracker and a combustion chamber, the combustion chamber is connected with an air inlet channel and an exhaust channel, and a spark plug is installed on the combustion chamber; the ammonia supply system is used for providing low-pressure gaseous ammonia, the ammonia supply system is connected with an inlet of the first-stage catalytic cracker, and an outlet of the first-stage catalytic cracker is connected with the gas inlet channel; the first-stage catalytic cracker is connected with the exhaust passage through an exhaust branch pipe, a low-temperature catalyst for catalyzing ammonia to be decomposed into hydrogen and nitrogen is arranged in the first-stage catalytic cracker, and the inner wall of the combustion chamber is coated with a second-stage ammonia catalyst coating. Staged ammonia cracking is carried out at low temperature and high temperature, a small amount of ammonia is decomposed by the first-stage catalytic cracker to generate hydrogen, the ignition energy of the ammonia can be remarkably reduced by the small amount of hydrogen, and the flame propagation speed of ammonia combustion is increased; the secondary cracking in the combustion chamber efficiently decomposes ammonia through a catalyst coating, so that the oxidation rate and the combustion efficiency of ammonia are improved, and the emission of unburned ammonia is reduced.

The present application relates to a deflagration venting device, a gas engine, and a generator set, and relates to the technical field of engines. The deflagration venting device includes a deflagration venting valve. A blocking assembly is provided on one side of the deflagration venting valve. The blocking assembly includes a blocking box. The deflagration venting valve communicates with the blocking box. Connecting pipes are provided on opposite side walls of the blocking box, and the connecting pipes communicate with the blocking box. A blocking block is provided in the blocking box. The blocking block is slidably connected to the inner wall of the blocking box along the axial direction of the connecting pipe. One side of the blocking block is spaced from the corresponding inner side wall of the blocking box. When the blocking block slides in the blocking box to one side of the blocking box, the blocking block closes the corresponding connecting pipe. The generator set uses a gas engine equipped with the deflagration venting device. By providing the blocking assembly and the deflagration venting valve, when deflagration occurs, the blocking assembly can cut off the gas transmission pipeline, and the deflagration venting valve can vent the high-pressure gas generated in the blocking box, thereby improving the safety of the equipment.

A combustion engine arrangement comprising a combustion engine has an intake manifold, and an exhaust manifold the combustion engine arrangement comprising a turbocharged air intake system fluidly connected to said intake manifold. The turbocharged air intake system has an air pump; and an exhaust gas recirculation (EGR) system fluidly connecting said exhaust manifold to said intake manifold, the EGR system comprising an EGR pump. The EGR pump and the air pump are arranged to be independently controllable so as to enable independent control the exhaust gas inflow and the air inflow to the intake manifold of the combustion engine.

The storage unit (1) comprises the following: - an inner container (3); - an outer container (7); - a cryogenic fluid transmission element (19) located in the space (9) between the inner container (3) and the outer container (7), the transmission element (19) comprising a body (23) delimiting a chamber (25), an inlet means (27), a drain means (29) comprising at least one exhaust channel (123) connecting the chamber (25) to a cryogenic fluid outlet (21) outside the storage unit (1), a movable element (31) configured to move relative to the body (23) by varying the volume of the chamber (25), a motor (33) and a mechanical transmission (35) transmitting motion from an output shaft (37) of the motor (33) to the movable element (31); wherein at least one exhaust duct (123) is configured to cool the engine (33).

The application relates to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof, and belongs to the field of coal gasification combined cycle power generation coupled with biomass, in particular to an IGCC system coupled with biomass and near-zero emission high-purity CO2 capture and a working method thereof. The application is used for solving the problems that the existing IGCC system has low CO2 capture rate, high energy consumption, low power generation efficiency, and a large amount of nitrogen generated in the oxygen taking process and difficult to effectively utilize. The application comprises an air separation device, a gasification furnace, a sensible heat recovery device, a purification device, a gas power generation unit, a waste heat recovery unit, a steam power generation unit, a biomass fermentation device, a methane reforming unit, an adsorption separation unit and an ammonia synthesis tower. The application is based on the overall coal gasification combined cycle power generation system of post-combustion CO2 capture and oxygen-enriched combustion technology, introduces a biomass ammonia synthesis process, generates H2 and CO through biomass fermentation and reforming, utilizes N2, and improves the system efficiency.

A compressor system includes a compressor, a storage vessel, and a control valve. The compressor includes a cylinder having a first end and a second end opposing the first end, a piston slidably disposed within the cylinder, a compression chamber defined between the first end and the piston, and a driving chamber defined between the piston and the second end. The compression chamber receives a gas therein. The storage vessel is in fluid communication with the driving chamber and is configured to store the gas which leaks from the compression chamber to the driving chamber. The control valve is disposed in fluid communication with the storage vessel and the compression chamber and is configured to control a flow of the gas from the storage vessel to the compression chamber.