511results about "Gaseous engine fuels" patented technology

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 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.

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.

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.

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.

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.

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.

To avoid, in an engine system comprising an exhaust gas recirculation device, function failure due to infiltration of condensate water into an intake pipe pressure introduction pipe.SOLUTION: A gas fuel supply device for an engine has a fuel cylinder 1, a regulator 2, an intake passage 5 comprising a throttle 3 and a mixer 4, a fuel pipe 8, an engine 10, and an exhaust gas recirculation device 13 that recirculates part of exhaust gas to the intake passage 5 as EGR gas, the gas fuel supply device comprising an intake pressure outlet formed in the intake passage 5, and a mounting part formed around the intake pressure outlet. The regulator 2 has an intake pressure inlet 30 formed on its outer surface. The regulator 2 is fixed to the mounting part by a fixing member in a state where the intake pressure outlet and the intake pressure inlet 30 are in direct and airtight communication.SELECTED DRAWING: Figure 1

To realize a configuration capable of curbing an increase in a concentration of carbon monoxide contained in processed gas produced after exhaust gas produced when exhaust gas after combustion of thermal decomposition gas undergoes a process in a woody biomass gas combustion facility in which the thermal decomposition gas generated through thermal decomposition of woody biomass undergoes combustion.SOLUTION: A woody biomass gas combustion facility 1 comprises: a filter 23 which collects particles in thermal decomposition gas obtained from woody biomass; oxidation catalyst reaction device 16 which oxidizes carbon monoxide contained in exhaust gas produced when the thermal decomposition gas undergoes combustion with a gas engine 15; a particle removal mechanism 25 which performs particle removal operation; an oxidation gas supply device 40 which mixes the exhaust gas with oxidation gas; and a control device 30 which controls drive of the oxidation gas supply device 40 so as to mix the exhaust gas with the oxidation gas when the particle removal mechanism 25 performs the particle removal operation.SELECTED DRAWING: Figure 1

The application discloses an intelligent hydrogenation method and system for a generator, relates to the technical field of generator hydrogenation, and determines the working state of the generator at different time nodes according to the past power generation plan of the generator, constructs a generator working state curve and a generator hydrogen consumption curve, and generates an initial strategy reference model; according to the current power generation demand, the working state of the generator in a preset time section is determined, and a fixed-proportion hydrogenation control strategy is constructed; according to the working state and load condition of the generator set, the injection amount of hydrogen is dynamically adjusted, a plurality of variable-proportion hydrogenation control strategies are generated, the fixed-proportion hydrogenation control strategy and the variable-proportion hydrogenation control strategy are evaluated from the energy-saving property and adaptability, and the energy-saving property evaluation and adaptability evaluation of the fixed-proportion hydrogenation control strategy and the variable-proportion hydrogenation control strategy are comprehensively evaluated to determine the optimal hydrogenation control strategy, which is determined as the current hydrogenation control strategy.

A method for controlling a turbocharged hydrogen engine for burning an air-hydrogen mixture having an air-hydrogen ratio λ greater than 1. The hydrogen engine is configured to assume steady operating states and transient operating states, wherein ignition timings are more retarded in the transient operating states than in the steady operating states.

A method of operating a hydrogen-fueled internal combustion engine 100. The engine 100 is determined to have a mode control value, which represents a threshold torque. During operation of the engine 100, a demanded torque of the internal combustion engine 100 is determined and compared to the threshold torque. If the demanded torque is less than the threshold torque, the engine 100 is operated in a low load mode that uses spark ignition and pre-mixed combustion. If the demanded torque is greater than the threshold torque, the engine 100 is operated in a high load mode that uses compression ignition and diffusion combustion.

An exhaust valve includes a valve head and a valve stem extending from the valve head. The valve head includes a combustion face and a seat face. The combustion face and the seat face are on opposing sides of the valve head. The seat face is configured to matingly engage an opposing surface. The valve head is formed of a base material. A valve thermal management composition coats at least a portion of the seat face and comprises increased thermal conductivity relative to the base material of the valve head.

Systems, devices, methods and programs for reducing emissions from engines are provided. For example, one system for reducing emissions from engines comprises a heating controller coupled to an energy storage device (ESD). The heating controller is configured to control a heating element to heat one or more components of an after-treatment system using energy from the ESD under a first condition and to control the heating element to stop heating the one or more components of the after-treatment system when a second condition is satisfied. Additionally, another system for reducing emissions from engines comprises a controller detecting a decrease in a demanded torque from an engine and an ISG. The controller is then configured to operate a clutch to disengage the engine from the ISG, if after removing fuel from the engine, the sensed speed of the engine is above a threshold.

Title: Control Unit and Method for Determining Backfire in the Intake Manifold of a Hydrogen Engine. The control unit 118 determines backfire in the intake manifold 110 of the vehicle's hydrogen engine. The intake manifold includes the hydrogen injector 112 and a pressure sensor 114. The hydrogen engine includes the knock sensor 106. Gaseous hydrogen is injected through the hydrogen injector 112 and sent to the engine cylinder. The control unit 118 is configured to detect the first signal indicating a hydrogen flame in the intake manifold 110 via the flame sensor 116. The control unit 118 measures the second and third signals via the pressure sensor 114 and the knock sensor 106, respectively.Control unit 118 validates and determines the presence of backfire based on the correlation of the first signal with the second and third signals. After determining backfire, control unit 118 takes control measures that reduce its occurrence. Figure 1 for the summary.

The invention relates to an air-steam engine comprising one or more cylinders and a piston located therein, capable of reciprocating. The air-steam engine further includes an injection nozzle and a pre-chamber. The pre-chamber is arranged between the injection nozzle and the cylinder, and a fuel fluid can be introduced into the pre-chamber from the injection nozzle. Compressed air from the cylinder is drawn into the pre-chamber, forming an air-steam mixture within the pre-chamber, which can then be introduced into the cylinder. This enables the reciprocating movement of the cylinder. Furthermore, the cylinder is connected to a condenser via an exhaust valve, causing the air-steam mixture or the vapor from the air-steam mixture to condense and be present as condensate in the condenser.The condenser and the injector are connected via a high-pressure pump and a high-pressure tank, allowing the fuel fluid to flow from the condenser back to the injector via another high-pressure pump and tank. This closed-loop system in the air-steam engine results in efficient operation.

To provide a lubricating oil cleaning system that can more reliably separate lubricating oil and ammonia water from a stock solution containing ammonia water and lubricating oil. [Solution] The lubricating oil cleaning system 100 can purify raw DO contaminated with ammonia into lubricating oil LO. The lubricating oil cleaning system 100 comprises an engine 200, a lubricating oil cleaner 1 that separates raw DO containing lubricating oil LO used in the engine 200 into a light liquid which is purified lubricating oil LO and a heavy liquid which contains ammonia, a separator inlet line 130 for supplying raw DO to the lubricating oil cleaner 1, and an additive means 135 for adding water W to the raw DO in the separator inlet line 130.

The Company provides fuel supply systems that supply high-pressure gas to large two-stroke compression-ignition internal combustion engines. The fuel supply system includes a feed pipe (9) connecting the outlet of a liquefied gas storage tank (8) to the inlet (40) of a high-pressure pump, a transfer pipe (50) connecting the outlet of the high-pressure pump to the inlet of a high-pressure vaporizer (14), and a supply pipe (18) connecting the outlet of the high-pressure vaporizer to the inlet of an engine's fuel injection system. The high-pressure pump includes two or more independently operating cryogenic pump units (41, 42, 43). Each pump unit includes a pump piston (62) slidably disposed in a pump cylinder (61) and a drive cylinder (45) having a hydraulic drive piston (46) that drives the pump piston.

The invention relates to an injection system (10) for at least indirectly introducing a gaseous fuel into combustion chambers of a gas engine (12), having a plurality of injection valves (20) for at least indirectly introducing the gaseous fuel, and having a distribution element (22) common to the injection valves (20), which has a receiving chamber (24) which is common to the injection valves (20), and through which the gaseous fuel can flow, and via which the injection valves (20) can be supplied with the gaseous fuel, wherein the respective injection valve (20) has a respective valve housing (26) into which the gaseous fuel can be introduced from the receiving chamber (24), and has a respective valve element (28) which can be moved along a movement direction (30) relative to the respective valve housing (26) between at least an open position, in which the gaseous fuel can be at least indirectly introduced, by means of the respective injection valve (20), from the respective valve housing (26) into at least one of the combustion chambers, and a closed position, in which an introduction of the fuel into the respective combustion chamber by means of the respective injection valve (20) does not take place.

An internal combustion engine (10, Fig. 1) for use with hydrogen fuel, the engine having at least one cylinder assembly (23, Fig. 2), the or each cylinder assembly comprising a combustion chamber 224

An internal combustion engine for use with hydrogen fuel is provided, the engine having at least one cylinder assembly. Each cylinder assembly comprises a combustion chamber comprising a cylinder, a cylinder head and a reciprocating piston assembly; two inlet ports within the cylinder head, the inlet ports being selectively closable by a corresponding inlet valve; at least one outlet port within the cylinder head, the at least one outlet port being selectively closable by a corresponding outlet valve; at least one spark plug mounted to the cylinder head; and a piston assembly comprising a piston and a crankshaft. The engine further comprises a line passing through a centre of one of the inlet ports and a centre of a corresponding at least one outlet port. The line is arranged at a non-zero angle to an axis of rotation of the crankshaft and the line is at a non-right angle to the axis of rotation of the crankshaft. The cylinder head is secured by six fasteners, such as six bolts to an engine block defining the cylinder.

A fuel supply system (1) for an internal combustion engine (10) designed as a reciprocating piston engine with a crankshaft and several combustion chambers (11, 12, 13, 14, 15, 16), in particular one powered by hydrogen, comprises a fuel rail (20, 24, 25) to which several fuel injectors (8) are connected via supply lines (22, 23, 28). At least one resonator valve (27, 30, 31) is arranged between the fuel rail (20, 24, 25) and the fuel injectors (8), the latter being designed for actuation depending on the crankshaft angle (α).

A thermal management system for a work vehicle (10) comprising an engine (50) and a heat-generating non-engine component (140) is disclosed. The thermal management system includes a control system (160) for thermal management and a fuel tank (122) designed to store fuel in liquid or gaseous form. The fuel lines (124, 130, 132) are designed to cool the fuel from the fuel tank (122) for cooling engine components (54, 56, 150) and / or a heat sink.Furthermore, a thermal expansion valve (128, 148) is provided, which is arranged and designed to convey the fuel used for cooling through an opening (136, 154) so ​​that the fuel is subjected to a pressure reduction, wherein all the fuel used for cooling is supplied to the engine (50) for combustion after it has passed through one or more components (54, 56, 150) of the engine (50) or the cooling element (138). A related method is also disclosed.