86results about "Gaseous engine fuels" patented technology

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.

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).

The invention provides a gaseous fuel delivery system 10 for an internal combustion engine, comprising a source of pressurized gas 12, a gas delivery pipe 18, and a gas rail 14 coupled to at least one

The application discloses a hydrogen internal combustion engine with air inlet channel anti-backfire function and relates to the technical field of hydrogen internal combustion engines.The hydrogen internal combustion engine comprises a body, an air inlet mechanism, a hydrogen injector, a tail gas recycling mechanism and an exhaust mechanism, one side of the body is provided with the air inlet mechanism, the other side of the body is provided with the exhaust mechanism, the body is in pipeline communication with the air inlet mechanism and the exhaust mechanism respectively, the hydrogen injector is inserted into the air inlet mechanism, the air inlet mechanism and the tail gas recycling mechanism are fastened and connected, the tail gas recycling mechanism and the exhaust mechanism are fastened and connected, and the tail gas recycling mechanism and the exhaust mechanism are in pipeline communication.In the application, the mixed gas in the pipeline inside the cooling chamber is cooled by the cooling assembly, so that the mixed gas cannot reach the combustion condition of hydrogen and cannot be combusted in the air inlet manifold, thereby preventing backfire of the air inlet pipe, and the high-temperature tail gas is used for preheating the air just entering, so that the air and the hydrogen are rapidly mixed and the mixing is more uniform.

The invention relates to a fuel supply device for supplying fuel to an internal combustion engine, comprising: a fuel storage device for storing primary fuel and at least two parallel fuel supply paths, which are connected on the one hand to the fuel storage device and on the other hand to the internal combustion engine, wherein the primary fuel can be supplied from the fuel storage device to the internal combustion engine for the purpose of combustion by means of the first fuel supply path, and the second fuel supply path has at least one reforming device which reforms the primary fuel supplied from the fuel tank into a secondary fuel, and in order to supply at least a part of the produced secondary fuel to the internal combustion engine for the purpose of combustion.

An engine system includes an intake system having an intake conduit forming an intake passage, and a fuel admission mixer coupled to the intake conduit for fumigation admission of a gaseous fuel. The fuel admission mixer includes a fuel tube forming a feed passage, and a plurality of mixing air admission slots each fluidly connected to the feed passage. Ramming of intake air through the mixing air admission slots can produce vortices of mixing air and admitted gaseous fuel to improve mixing for combustion stability and other purposes. In an embodiment, pressurized air from a compressor of the engine system is returned into the fuel admission mixer.

This technology provides a way to heat a pressure regulator with a simple configuration. [Solution] The ammonia supply system comprises a vaporizer for vaporizing liquid ammonia and a pressure regulator for adjusting the pressure of the gaseous ammonia after vaporization by the vaporizer. The vaporizer has a spiral ammonia flow path through which liquid ammonia and gaseous ammonia flow. The pressure regulator is located inside the spiral ammonia flow path.

spark plug (1) having a longitudinal axis X: • A housing (2) with an inner side, an outer side and a combustion chamber-side end face (20), • An insulator (3) arranged in the housing (2), • A central electrode (4) arranged in the insulator (3), which protrudes from the insulator (3) on the combustion chamber side and whose combustion chamber-side end is inside the housing (2), • A rod-shaped ground electrode (5) arranged on the housing (2) such that the radial ignition gap (45) is formed within the housing (2) between the center electrode (4) and the ground electrode (5), wherein the housing (2) has a recess (6) on the inner edge of its combustion chamber-side end face (20) in which the ground electrode (5) is arranged and fastened.

This disclosure relates to an ammonia-fueled internal combustion engine system. The engine system includes a decomposition device, which is connectable to an ammonia fuel source and configured to produce a decomposed fuel, comprising a mixture of nitrogen and hydrogen, by decomposing ammonia fuel supplied by the ammonia fuel source during engine operation. The engine system further includes a main combustion chamber and an intake port and an exhaust port, respectively, which are in fluid communication with the main combustion chamber. A secondary combustion chamber is in fluid communication with the main combustion chamber via at least one orifice, and the secondary combustion chamber further includes a decomposed fuel inlet to allow the introduction of the decomposed fuel supplied from the decomposition device into the secondary combustion chamber. An ignition device is operably positioned with the secondary combustion chamber and is configured to ignite the decomposed fuel in the secondary combustion chamber. The secondary combustion chamber and / or orifice are configured to generate a stream of combustion fluid from the secondary combustion chamber to the main combustion chamber via the orifice when the decomposed fuel is ignited in the secondary combustion chamber, in order to allow ignition of the fuel present in the main combustion chamber. The engine system further comprises a sensor arrangement configured to measure the characteristics of the decomposed fuel, and an electronic control device that communicates with the sensor arrangement and the ignition device. The electronic control device is configured to use the measurements received from the sensor arrangement to evaluate the characteristics of the hydrogen present in the decomposed fuel, and to control the introduction of the decomposed fuel into the sub-combustion chamber according to the evaluated characteristics of the hydrogen.

A method for operating an internal combustion engine (10) with hydrogen as fuel is proposed, in which hydrogen is directly injected into the combustion chamber (13) of the internal combustion engine and the ignition of the air-hydrogen mixture in the combustion chamber (13) is effected by means of a prechamber spark plug (1). An operating state of the internal combustion engine (10) is identified in which there is a tendency towards pre-ignition. In the identified operating range, the internal combustion engine is operated with a time overlap of the opening of the air intake valve (2) and the exhaust gas exhaust valve (3) of the combustion chamber (13). Furthermore, a prechamber spark plug (1) with a prechamber cover (4) for igniting an air-hydrogen mixture introduced into the combustion chamber (13) of an internal combustion engine (10) is proposed, wherein the prechamber cover (4) has a flushing opening (6). The flushing opening (6) is configured to form an air flow in the prechamber cover (4) with the air intake valve (2) and the exhaust gas exhaust valve (3) of the combustion chamber being open at the same time.

Powertrain system for a motor vehicle comprising a fuel cell and an internal combustion engine. Powertrain system (1) for a motor vehicle, comprising: - a tank (5) for holding hydrogen, - a fuel cell (7), the fuel cell comprising an anodic circuit having a first inlet (11) and a first outlet (12), a cathodic circuit having a second inlet (13) and a second outlet (14), - an internal combustion engine (4) comprising a first inlet (41), a second inlet (42), and an exhaust outlet, - a first pipe (51) hydraulically connecting the first inlet (11) of the fuel cell to the second inlet (13) of the fuel cell, and - a second pipe (53) hydraulically connecting the second outlet (14) of the fuel cell to the first inlet (41) of the internal combustion engine. Figure for the abstract: Figure 1

This application provides an ammonia-hydrogen engine system, a combustion organization method, a combustion organization system, a computer-readable medium, and a computer program product. The ammonia-hydrogen engine system includes an ammonia fuel supply pipeline and a hydrogen fuel supply pipeline; an ammonia-hydrogen mixing device, with its input ends connected to the ammonia fuel supply pipeline and the hydrogen fuel supply pipeline respectively, for mixing ammonia fuel and hydrogen fuel to form an ammonia-hydrogen mixed fuel gas flow; an intake manifold mixing injection valve, with the injection direction towards the intake manifold; and a pre-combustion chamber mixing injection valve, with the injection direction towards the pre-combustion chamber, wherein a spark plug is installed in the pre-combustion chamber, and the output end of the pre-combustion chamber is connected to the combustion chamber, allowing the flame and / or combustion gas generated in the pre-combustion chamber to enter the combustion chamber.

Powertrain system for a motor vehicle comprising a fuel cell and an internal combustion engine. Powertrain system (1) for a motor vehicle, comprising: - a tank (5) for holding hydrogen, - a fuel cell (7) comprising an anode circuit having a first inlet (11), and a cathode circuit having a second inlet (13), - an internal combustion engine (4), the internal combustion engine comprising a first inlet (41) and a second inlet (42), - a first air compressor (30), and - a second air compressor (44) comprising an inlet (79) configured to draw air from an environment external to the powertrain system, and an outlet (80) configured to supply the second inlet (42) of the internal combustion engine (4) and the second inlet (13) of the fuel cell (7) with compressed air. Figure for the abstract: Figure 1

Serial hybrid drive system for a vehicle, comprising (a) a tank for a liquid or chemically bound storage medium, (b) a conditioning unit for preparing and dosing the storage medium, (c) a demand-controlled conversion module that generates a motor-operated working medium from the storage medium, (d) an internal combustion engine powered by the working medium, which drives a generator, (e) a DC intermediate circuit supplied by the generator, (f) an electric traction motor supplied from the DC intermediate circuit and providing traction exclusively, (g) an electrical power buffer on the DC intermediate circuit, (h) and a control unit that regulates the conversion module and the internal combustion engine in such a way that the internal combustion engine is operated in a limited range of steady load points.

This invention discloses a common rail storage device for ammonia-hydrogen mixture suitable for ammonia decomposition hydrogen production systems, relating to the field of new energy engine technology. The device comprises four main units: online ammonia catalytic cracking, pressurized mixing and buffering, intelligent sensing and central control, and mixed fuel output and application, forming a closed-loop control system. Liquid ammonia, after vaporization, enters the catalytic cracking reactor for partial decomposition, generating a hydrogen-ammonia mixture. This mixture is then pressurized and stored in the mixed fuel output and storage device. The intelligent sensing unit monitors the mixed gas parameters in real time, and the central control unit dynamically adjusts the cracking temperature, pressurization pressure, and output pressure to maintain the optimal ratio of 90% NH3 + 10% H2. The mixed gas is stored under high exhaust temperature conditions and released under low exhaust temperature conditions, ensuring stable engine operation under all operating conditions. This device solves the problems of low ammonia decomposition efficiency and unstable mixed gas supply under low exhaust temperature conditions in existing technologies. It has advantages such as high safety, high energy efficiency, and strong adaptability, and can be widely applied to online hydrogen production systems for ammonia fuel engines.

A combustion system for an internal combustion engine is provided. The combustion system includes a cylinder extending along a longitudinal axis, a cylinder head disposed on the cylinder, and a piston configured to reciprocate within the cylinder along the longitudinal axis between a top dead center and a bottom dead center. The piston includes a piston bowl including a dome extending conically to a dome tip. The dome tip includes a hump, an annular protrusion spaced apart from and surrounding the hump, and an annular recessed surface disposed between the hump and the annular protrusion. Each of the hump and the annular protrusion extend upwardly from the annular recessed surface such that the hump, the annular protrusion, and the annular recessed surface define an annular recess therebetween. The combustion system further includes a combustion chamber defined by the cylinder, the cylinder head, and the piston.

A method of operating an internal combustion engine specified to be run with a fuel gas mixture comprising at least one hydrocarbon and hydrogen in a maximum specified hydrogen content using a pipeline gas withdrawn from a pipeline and comprising the at least one hydrocarbon and a hydrogen content exceeding the maximum specified hydrogen content is provided. The pipeline gas is at least in part subjected to a hydrogen depletion to yield a hydrogen depleted gas mixture not exceeding the maximum specified hydrogen content. Said hydrogen depleted gas mixture is at least in part used as the fuel gas and said hydrogen depletion includes a membrane separation. A corresponding arrangement is also part of the present invention.

Provided is a divided-chamber gas engine having a main combustion chamber and a sub-chamber communicating with the main combustion chamber via a plurality of nozzle holes, the divided-chamber gas engine comprising a main combustion chamber formation part that forms the main combustion chamber, a sub-chamber formation part that forms the sub-chamber, an intake line for guiding a mixture containing gas fuel and air to the main combustion chamber, a spark plug that is disposed in the sub-chamber and is configured to ignite unburned fuel, and an air-fuel mixture introduction line that branches from the intake line and guides the air-fuel mixture flowing through the intake line as at least a portion of unburned fuel to the sub-chamber.

A vehicle includes an engine to receive a cracked gas mixture. A cracker of the vehicle can receive ammonia and energy, crack the ammonia to form the hydrogen gas and a nitrogen gas, and convey the hydrogen gas to the engine. A controller for the vehicle can receive a predefined route for the vehicle. The controller can predict a future load demand of the vehicle based on the predefined route. The controller can adjust a flow rate of ammonia delivered to the cracker based on the future load demand.

Hybrid drive system with integrated gas generation from carbon-containing solids for supplying a gas engine, comprising: • a solids storage unit, • a metering unit, • a thermal reactor module, • a gas purification unit, • a buffer volume, • a gas engine, • a charging unit, • an exhaust gas recirculation, wherein a combustible gas mixture is generated from the solids and supplied to the gas engine.

This invention belongs to the field of hydrogen engine technology and discloses a port-injected hydrogen engine and its control method, as well as a vehicle. The engine includes a cylinder head, a layered dual-intake structure, a hydrogen supply system, a combustion chamber airflow optimization structure, and an intelligent collaborative control module. The layered dual-intake structure is connected to the combustion chamber located within the cylinder head. The nozzle of the hydrogen injection valve of the hydrogen supply system extends into and is embedded in the layered dual-intake structure. The combustion chamber airflow optimization structure is located at the connection between the combustion chamber and the layered dual-intake structure. The hydrogen injection valve and the layered dual-intake structure are electrically connected to the intelligent collaborative control module. This invention, through a design that supplies air through the main intake and injects hydrogen through the auxiliary intake, combined with Venturi effect negative pressure compensation, variable angle guidance, and dynamic adaptation and control under operating conditions, reduces the mutual interference between hydrogen and air, improves the intake charge and mixture uniformity, and achieves simultaneous improvement in charging efficiency and power performance. The structure is simple and highly adaptable.

A system of enhancing fuel combustion in an engine which may be a diesel engine or a hydro-diesel engine, by: (a) providing a supply of liquid diesel fuel; (b) using an oxygen concentrator to produce a concentrated oxygen gas; (c) mixing the concentrated oxygen gas into the liquid diesel fuel; and then (d) passing the homogeneous mixture of liquid diesel fuel and concentrated oxygen gas into a combustion chamber of an engine; and optionally (e) providing a supply of hydrogen gas; and (f) mixing the hydrogen gas into the liquid diesel fuel as well.

Internal combustion engine, with at least one adjustable piston in an engine block (2), with an intake manifold (4) and an exhaust manifold (5), wherein hydrogen can be supplied to the internal combustion engine (1) as fuel, characterized in that the fuel is a metal hydride (MgH2) which has a carrier medium with hydrogen, wherein the fuel is stored in a fuel tank (6) and can be dissolved from the carrier medium in a hydrogen reactor (7) by supplying water, and that a water separator (13) is arranged in the exhaust manifold (5) and the separated water can be supplied to the hydrogen reactor (7).

To stabilize regulator outlet pressure in any operational region, in a low-pressure regulator for gas fuel comprising a bypass fuel passage that bypasses an on-off valve.SOLUTION: A low-pressure regulator 1A for gas fuel comprises: a pressure regulating chamber 7 that communicates the inside of a body 2 with a fuel introduction passage 3 and a fuel delivery passage 4; an on-off valve 8 that partitions an atmospheric pressure chamber 5 communicated with the atmosphere by a diaphragm 6, and provided at an opening part of the fuel introduction passage 3; and a bypass fuel passage 10 that bypasses the on-off valve 8 and injects gas fuel from the fuel introduction passage 3 into the pressure regulating chamber 7. At a terminal side opening part of the bypass fuel passage 10, buffer means is arranged to prevent a jet flow of gas fuel from hitting the diaphragm 6 directly while colliding with it and changing its direction.SELECTED DRAWING: Figure 1