49results about "Fuel re-atomisation/homogenisation" patented technology

The utility model discloses a venturi mixer which comprises a main body, a contraction cavity, a throat pipe and a diffusion pipe, the contraction cavity is arranged in the left end of the main body and forms a gas inlet cavity with the main body, the contraction cavity is a hollow cone, an air inlet is formed in the middle of the contraction cavity, and a plurality of small holes are uniformly distributed in the surface of the contraction cavity; the throat pipe is arranged in the middle of the main body, the throat pipe is connected with the right end of the shrinkage cavity, and a waste gas cavity is formed between the throat pipe and the main body; the diffusion pipe is arranged in the right end of the main body, an extension pipe expanding outwards is arranged at the left end of the diffusion pipe, and the extension pipe extends out of the right portion of the throat pipe to form an air channel with the throat pipe. The blade type mixer solves the problems that an existing blade type mixer has a mixing efficiency bottleneck, and when the existing blade type mixer is applied to a large-displacement engine, the mixing efficiency is low, the air inflow is insufficient, and the optimal value required by the engine cannot be achieved.

A fuel conditioning system for an engine comprises a plurality of mixing vessels that include an input mixing vessel and an output mixing vessel, at least one inlet for receiving fuel and water into the input mixing vessel and at least one outlet for supplying the fuel and water from the output mixing vessel to the engine. A conduit system is arranged to transfer the fuel and water through each of the mixing vessels from the input mixing vessel to the output mixing vessel. Each of the mixing vessels comprises an internal chamber containing a plurality of nebulizing members. The nebulizing members are configured to rotate about a rotational axis extending through the internal chamber to nebulize the fuel and water therein. One or more magnets disposed in the internal chamber to attract ferromagnetic substances present in the fuel and / or water.

In certain embodiments, a PFI diffuser induction device may use toroidal vortex flow to thoroughly mix H2 and air in the intake runner and port of a H2 engine. When H2 enters a stream of air flow in the form of a toroidal vortex, it may tend to swallow the air into the vortex where a low-pressure region may be formed due to the swirling velocity of the vortex, which may be more effective that the typical mixing via conventional injection methods. Engine test measurements show remarkable improvements in engine combustion stability as well as engine efficiency and power output using a counterflow Toroidal Vortex Induction Diffuser to achieve high levels of fuel mixture homogeneity in combustion engines using hard-to-mix fuels like H2, CH3OH, C2H5OH and other gaseous and liquid fuels.

The utility model relates to the technical field of oil mist detector detection, in particular to a portable marine oil mist generating device which comprises a box body, and an oil mist generator is fixed to one side of the top of the box body in a penetrating mode. A first channel, a second channel and a third channel are formed in an inner cavity of the box body, the first channel, the second channel and the third channel are communicated, and a fan is fixedly installed in the first channel. According to the utility model, the sleeve and the inner cavity of the movable tube form an oil mist leading-out channel, and when the oil mist detector is detected, the housing at the outer end of the movable tube is aligned and attached to a detection port for detection on the oil mist detector, so that oil mist can be accurately led into the detection port, the detection accuracy is ensured, and the detection efficiency is improved. And meanwhile, the oil mist can be prevented from diffusing to the periphery and adhering to other equipment.

The invention relates to the technical field of aero-engines, and discloses an evaporation pipe and an oil-gas mixing device.The evaporation pipe comprises a first pipe body and a second pipe body, a sealing plate is arranged at the first end of the first pipe body, a plurality of first gas inlet holes are formed in the sealing plate, and a plurality of second gas inlet holes are formed in the side wall of the first pipe body; the multiple first air inlet holes and the multiple second air inlet holes are used for inputting high-pressure gas, and a penetrating hole used for inputting fuel oil is formed in the side wall of the first pipe body; the first end of the second pipe body is connected and communicated with the second end of the first pipe body, a first bending angle is arranged at the joint of the first pipe body and the second pipe body, and the second end of the second pipe body is used for being communicated with an engine ignition area. According to the evaporation pipe and the oil-gas mixing device, the problems that the fuel oil atomization and evaporation effect is poor, and an engine is difficult to ignite are solved or improved.

A methanol-gasoline mixing energizing device, a methanol-fueled automobile control system, and an automobile. The methanol-gasoline mixing energizing device is mounted in front of a fuel rail, comprises a mixing cavity (1) and a microwave heating device (3), and is used for pre-mixing methanol and gasoline, and the mixed methanol and gasoline fuel flows into the fuel rail and is injected out by a fuel injector.

The present invention provides an elastically supported universally adjustable support, comprising a support body and at least one support portion provided below the support body; the support portion comprises elastic support legs and a sole portion for external fixation; the elastic support legs and the sole portion are both formed by bending downwards from an extension portion of the support body; the elastic support legs are formed by continuously bending back and forth through the extension portion of the support body, and the elastic support legs and the sole portion can be stretched, compressed, and twisted in three-dimensional spatial directions during the process of external force pressure adjustment; the elastic support legs and the sole portion of one or more of the support portions can be independently adjusted, so that the relative position of the support portion and the support portion can be adjusted as needed. The present invention has a simple structure, an integrated structure, a light weight, a small size, and is easy to install and adjust. It has good universality and can be used to install the supported objects in a variety of occasions.

A thermal choke, includes (1) a body, comprising a heat conductive material, (2) an electric heater, on or in the body, (3) a temperature sensor, on or in the body, and (4) a fin, in a channel surrounded by the body. The thermal choke is configured to fit between a throttle assembly and a cylinder of a spark ignition engine.

The present disclosure is directed to a system for reducing hydrogen knocking in a hydrogen internal combustion engine [H2ICE]. The hydrogen internal combustion engine is coupled to an intake manifold, an exhaust manifold, a forced induction unit, and a cooling unit. The cooling unit includes a vortex cooling device and a hybrid cooling device. The system includes a control unit communicatively coupled to the intake manifold, the exhaust manifold, the forced induction unit, and the cooling unit. The control unit configured to route compressed air from the forced induction unit to the vortex cooling device. The vortex cooling device is configured to cool the compressed air and supply cold air to the intake manifold of the hydrogen internal combustion engine. Further, the present disclosure is also directed to a hydrogen internal combustion engine unit and a method for reducing hydrogen knocking in a hydrogen internal combustion engine.

The forced recirculation mixer (1) comprises a mixing chamber (5) the internal cavity of which forms a recirculation loop (6) circulating a homogeneous gas mixture (4) formed of a gas to be mixed (3) and a vapourisable liquid (2) introduced into the loop (6) via a gas inlet duct (7) and a liquid injection nozzle (9), respectively, gas withdrawal means (12) being capable of withdrawing the homogeneous gas mixture (4) from the mixing chamber (5) via a mixture withdrawal duct (11) while a mixing turbine (13) driven by a turbine motor (28) forces the homogeneous gas mixture (4) to circulate in the recirculation loop (6).

An internal combustion engine includes a cylinder head configured to create a vortex in a charge flow introduced into a combustion chamber. The cylinder head includes a first port for receiving a first portion of the charge flow. The first port is configured to provide the first portion of the charge flow to a combustion chamber of the internal combustion engine. The cylinder head includes a second port for receiving a second portion of the charge flow, and a vortex passage connecting an upstream portion of the second port to a downstream portion of the first port.

An atomizer (16), comprising: a housing (40) having a liquid inlet (44); at least one primary orifice positioned at the liquid inlet (44), the at least one primary orifice configured to disperse a stream of liquid into a plurality of liquid droplets; an impingement surface (46) against which the plurality of liquid droplets contact to break up the plurality of liquid droplets into a plurality of smaller secondary liquid droplets and create a thin film of secondary liquid droplets on the impingement surface (46), a portion of the impingement surface (46) being arranged at an angle in the range of about 0º to about 60º relative to a plane perpendicular to a longitudinal axis (72) of the housing (40); at least one pressurized air channel (48) configured to deliver an airflow into contact with the secondary liquid droplets; a plurality of secondary orifices (52) through which the secondary liquid droplets pass to exit the housing (40), wherein a size of the plurality of secondary liquid droplets is reduced when passing through the plurality of secondary orifices (52).

In certain embodiments, devices such as Turbulence Inducers may be installed within the intake runner in the proximity of the intake ports of an internal combustion engine. Such Turbulence Inducer devices may efficiently convert the laminar flow kinetic energy upstream of the intake runner into turbulent flow kinetic energy and consequently may increase the mixing of fuels like Hydrogen and Methanol that are injected via an intake port or in-cylinder during the intake stroke of an internal combustion engine. In certain embodiments, CFD simulations and engine test results of the Turbulence Inducer with engines fueled by one or more of Hydrogen and Methanol indicate remarkable extension of the knock and LOP limits enabling combustion improvements resulting in a power output increase of approximately 5-20%. Certain embodiments may realize homogeneous mixture preparation with both, liquid as well as gaseous fuels.

The invention discloses a novel engine combustion acting structure, and relates to the field of internal combustion engines. The combustion acting structure is provided with the electrolysis device for producing hydrogen and oxygen in real time, and the oxygen generates high-oxygen-content and turbulent-flow inlet air of high-temperature plasma through the plasma generator and the gas turbulent flow mechanism which are arranged in the air inlet pipe; the hydrogen entering the front section of the intake manifold through the second connecting pipe or the hydrogen mixed with the fuel oil through the second connecting pipe is mixed with the fuel oil for combustion in an engine cylinder, so that the flame propagation speed and stability are enhanced, the fuel oil consumption is reduced under the high calorific value action of the hydrogen, and the combustion reaction is more sufficient; due to mixing of the fuel oil, the hydrogen and the oxygen, the engine can work under the high compression ratio, and the carbon deposition forming possibility is reduced and avoided. On the whole, sufficient mixing and more complete combustion in the engine are achieved, the heat efficiency is improved, the fuel oil amount is reduced, power output is improved, and pollutant emission is reduced.

Provided device for producing Hydrogen-enriched slush LNG fuel includes a vortex tube with a vortex chamber formed inside, a plurality of radial inlets installed on an outer surface of the vortex chamber through which a mixed fluid flows, a swirl generator provided inside the vortex chamber for the mixed fluid to flow inside the vortex tube and to cause a clockwise swirl motion, and a nozzle formed on the left side of the swirl generator, wherein a flow field is formed when pressure decreases to the left direction and pressure increases in the right direction from the central axis of the vortex tube, the high-temperature fluid discharges through the main tube to the right end of the vortex tube, and the low-temperature fluid discharges through the low-temperature fluid vent on the left side of the vortex tube.

A fuel droplet micronizer serves to enhance and stabilize the power of the engines by effectively pulverizing fuel liquid to micro-droplets against flow electrification. The fuel droplet micronizer is composed of a micronization assistance part 30 formed from filaments, a mesh-like sheet or ribbon-like materials so forth made of metals, semiconductors, ceramics and glasses so on. The micronization assistance part 30 is installed between an ejection port 20 of an carburetor or the ejection apparatus and an intake valve 41 of the engine, whereby the fuel liquid ejected from the ejection port 20 of the carburetor or the ejection apparatus is smashed at the micronization assistance part 30, whereof impact facilitates micronization of fuel droplets by pulverizing and scattering.

The invention discloses a venturi mixer with adjustable flow limitation and an operation method thereof, and particularly relates to the technical field of fuel and air mixing of non-road engines, the mixer comprises a shell, a venturi tube is sleeved with the shell, the shell is provided with a connecting base, the venturi tube is provided with a throat part, a gradually-shrinking section and a diffusing section, and the connecting base is provided with a connecting rod. A fuel injection hole is formed in the throat part, the shell and the connecting seat are provided with a fuel channel, and the fuel channel is communicated with the fuel injection hole; two groups of opposite adjusting conical rings are arranged in the Venturi tube; each group of adjusting conical rings is frustum-shaped, and the small-diameter ends of the adjusting conical rings abut against the fuel injection hole; each set of adjusting cone rings is composed of a plurality of adjusting cone rings with the ruler diameters gradually changing in sequence, a containing groove is formed in the side, close to the small-ruler-diameter adjusting cone ring, of the large-ruler-diameter adjusting cone ring, and the adjusting cone rings are connected into the containing groove in a sliding mode. Through two groups of adjusting cone rings which are arranged in the Venturi tube and can move relatively and axially, continuous adjustment of effective circulation sections of a throat part and an adjacent area is realized.

A device may include a memory storing instructions and a processor configured to execute the instructions to obtain a motor octane number for a sample; perform a combustion test for the sample in a constant volume combustion chamber; and record, at time points during the combustion test, pressure values associated with the sample. The processor may be further configured to calculate values for one or more pressure parameters for the sample based on the pressure values; generate a motor octane number function for the constant volume combustion chamber based on the determined motor octane number and the calculated values for the one or more pressure parameters; and use the generated motor octane number function to determine motor octane numbers for samples using the constant volume combustion chamber.

The invention discloses a methanol gasification device of a high-power methanol engine, and relates to the technical field of methanol engines. An air compressor; a methanol inlet of the methanol atomizing nozzle is connected with the methanol storage tank, and a compressed air inlet of the methanol atomizing nozzle is connected with the air compressor; an atomized methanol inlet of the premixer is connected with an atomized methanol outlet of the methanol atomizing nozzle, a pressurized air inlet of the premixer is connected with an exhaust port of an engine supercharger, and the premixer is used for premixing atomized methanol and pressurized air; the cyclone separator is used for separating methanol liquid drops in the premixed gas, a premixed gas inlet of the cyclone separator is connected with a premixed gas outlet of the premixer, a gas outlet of the cyclone separator is connected with a gas inlet of the engine, and the cyclone separator is connected with the methanol storage tank through a pressure stabilizing assembly so that the separated methanol liquid drops can flow back into the methanol storage tank. The methanol gasification device is good in methanol gasification effect, simple in structure and low in manufacturing cost.

The invention discloses a methanol engine cold start system and method based on pulse plasma catalytic combustion. The methanol engine cold start system comprises a gas mixer, a methanol engine, a pulse plasma catalytic combustor and a reflux pump. The inlet section of the gas mixer is connected with air, the throat section is connected with methanol, and the outlet end is provided with an electric control proportional valve; the outlet end of the gas mixer is connected to the methanol engine and the pulse plasma catalytic combustor through an electric control three-way valve. A plasma area and a catalytic area are arranged in the pulse plasma catalytic combustor; an inlet of the pulse plasma catalytic burner is connected with the outlet end of the gas mixer, and an outlet of the pulse plasma catalytic burner is connected with the reflux pump and flows back to the throat section of the gas mixer. Through cooperation of pulse plasma excitation and the catalyst, reaction activation energy is reduced, methanol mixed gas can be excited at low temperature, heating gas of 60-70 DEG C is generated, necessary heat is provided for engine starting, dependence on external energy is not needed, and complete autonomous starting is achieved.

Entry system, comprehensive: a cylinder with an intake manifold (326); a projection system (148, 204, 300) arranged in an opening (303) in a lower wall (333) of the intake manifold (326) located closest to the cylinder, wherein the projection system (148, 204, 300) includes a projection (321) movably arranged inside a spring-loaded sealing element (320), the spring-loaded sealing element (320) being anchored to a region of the lower wall (333) defining the opening (303), and wherein the projection (321) is movable in a vertical direction through the opening into the intake manifold by an actuator (206, 307); and a control (12) which stores non-volatile instructions in a memory which, when executed, cause the control (12) to switch on the actuator (206, 307) so that it positions the projection (321) of the projection system (148, 204, 300) outwards relative to the spring-loaded sealing element (326) through the opening (303) in the lower wall (333) of the suction pipe (326) in response to an operating condition.

The utility model relates to an engine and an air inlet device, the engine comprises an air inlet pipe, a throttle body, a turbocharger, a primary oil-gas mixer and a secondary oil-gas mixer, the primary oil-gas mixer comprises an inner pipe section and an outer pipe section which are coaxially arranged, and a circulation gap is formed between the inner pipe section and the outer pipe section; the inner pipe section and the outer pipe section are fixed through a plurality of connecting bodies, and at least one circle of oil gas nozzles are arranged on the circumferential surface of the outer pipe section. A turbulent flow mechanism is arranged in the secondary oil-gas mixer and used for stirring oil-gas mixed fluid of the primary oil-gas mixer. The necking part of the outer pipe section is used for increasing the instantaneous flow speed of air passing through the necking part, so that when the air rapidly flows through the necking part, oil mist sprayed out of the oil-gas nozzle can be driven to flow, the purpose of primary oil-gas mixing is achieved, then the oil-gas mixing degree is further improved through disturbance of the turbulent flow blades in the secondary oil-gas mixer, and the oil-gas mixing efficiency is improved. Therefore, sufficient combustion in the cylinder is ensured and heat efficiency is improved.

Disclosed are a methanol-gasoline mixing energizing device, a methanol-fueled automobile control system, and an automobile. The methanol-gasoline mixing energizing device is mounted in front of a fuel rail, includes a mixing cavity and a microwave heating device, and is used for pre-mixing methanol and gasoline, and the mixed methanol and gasoline fuel flows into the fuel rail and is injected out by a fuel injector.

The utility model discloses an all-terrain vehicle and a power assembly thereof. The all-terrain vehicle comprises a vehicle frame, a vehicle body cover; a walking assembly; a driving motor and a power supply assembly. The power assembly comprises an engine and a generator at least partially arranged on one side of the engine. The engine comprises a crankshaft, the generator comprises a stator and a rotor connected to the crankshaft, the stator is connected to the engine and forms an accommodating space, and the rotor is arranged in the accommodating space; the ratio of the length of the rotor in the direction parallel to the rotation center line of the crankshaft to the peak power of the generator is larger than or equal to 0.41 mm / kw and smaller than or equal to 0.63 mm / kw. According to the all-terrain vehicle, the arrangement relation of the motor and the engine is reasonably configured, and therefore the power assembly is compact in structure and can output large power.

In certain embodiments, devices such as Turbulence Inducers may be installed within the intake runner in the proximity of the intake ports of an internal combustion engine. Such Turbulence Inducer devices may efficiently convert the laminar flow kinetic energy upstream of the intake runner into turbulent flow kinetic energy and consequently may increase the mixing of fuels like Hydrogen and Methanol that are injected via an intake port or in-cylinder during the intake stroke of an internal combustion engine. In certain embodiments, CFD simulations and engine test results of the Turbulence Inducer with engines fueled by one or more of Hydrogen and Methanol indicate remarkable extension of the knock and LOP limits enabling combustion improvements resulting in a power output increase of approximately 5-20%. Certain embodiments may realize homogeneous mixture preparation with both, liquid as well as gaseous fuels.

The utility model discloses a methanol heater which comprises a heat exchanger, a combustion cylinder, a middle connecting body, a fuel pump, an ignition coil, a controller, a motor, an air inlet fan wheel, an air inlet cover and a throttling cover, the right end of the combustion cylinder is connected with an end cover, an oil spraying opening is formed in the fuel pump, and two groups of drainage plates are arranged at an inlet of the combustion cylinder. The two drainage plates are arranged under the oil spraying opening, a motor is fixed to the outer side of the end cover, a stirring rod is fixed to the output end of the motor, a stirring assembly is fixed to the stirring rod, a driving assembly is arranged at the top of the stirring rod, and a scattering assembly is arranged on the driving assembly. The scattering assembly is rotationally arranged in the combustion cylinder, the sprayed methanol liquid can be further scattered conveniently, the diffusion speed and range of the methanol liquid are further increased, and therefore the reaction efficiency of methanol is improved, and the methanol reaction is more sufficient.