37results 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.

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.

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.

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.

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 invention belongs to the technical field of two-stroke gasoline engines, and provides a two-stroke gasoline engine scavenging system and a working method. The two-stroke gasoline engine scavenging system comprises an air cylinder, a piston, a crankcase, a connecting rod, a crankshaft, a spark plug, a one-way valve plate and a carburetor. A cylinder cover is arranged at the top of the cylinder; a spark plug is mounted on the cylinder cover; the piston can slide in the air cylinder in a reciprocating mode and is connected with the crankshaft through a connecting rod, the crankshaft is arranged in the crankcase, and the crankcase is communicated with the air cylinder through a ventilation hole. An air inlet is formed in the side wall of a cylinder body of the air cylinder, and the one-way valve plate is arranged at the air inlet. The carburetor is arranged close to the ventilation hole, an outlet of the carburetor is communicated with the premixing cavity, a spiral turbulent flow blade is arranged in the premixing cavity, and an outlet of the premixing cavity is communicated with the ventilation hole. The utilization rate of mixed gas can be increased, and fuel consumption and tail gas pollution are reduced.

The invention provides a fuel treatment system for cracking hydrocarbons in fuel for combustion engines. The system comprises a primary ducting component having an exhaust gas inlet zone, and a secondary ducting component which includes a fuel enrichment component and a processing chamber. The processing chamber may have an outlet zone connectable to the combustion engine. The inlet zone of the primary ducting component and the outlet zone of the processing chamber may be configured in a heat exchange relationship with each other and in a counter-current gas flow direction with respect to each other. During operation of the system, heat from hottest volumes of the exhaust gas flowing in a furthest upstream portion of the ducting arrangement may be transferred to fuel-enriched exhaust gas flowing in a furthest downstream portion of the processing chamber. The system may include turbulence-inducing formations, including vortex-inducing formations configured in accordance with mathematical sequences such as the Fibonacci sequence.

A fuel conditioning system for an engine includes a plurality of mixing vessels including 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 transport the fuel and water from the input mixing vessel to the output mixing vessel through each of the mixing vessels. Each of the mixing vessels includes an internal chamber housing a plurality of atomizing members. The atomizing members are configured to rotate about an axis of rotation extending through the internal chamber to atomize the fuel and water in the internal chamber. One or more magnets are disposed within the internal chamber to attract ferromagnetic material present in the fuel and / or water.

The utility model discloses a methanol diesel engine atomization premixing device which comprises a methanol atomization assembly and a mixing cavity assembly, an outlet of a compressed air pipe is communicated with an inlet of an atomized methanol spraying pipe, the compressed air pipe and the atomized methanol spraying pipe are coaxially arranged, and an outlet of a methanol suction pipe is communicated with the inlet of the atomized methanol spraying pipe. The extending direction of the methanol suction pipe is perpendicular to the compressed air pipe and the atomized methanol spraying pipe, an outlet of the pressurized air pipe is communicated with an inlet of the mixed spraying pipe, the pressurized air pipe and the mixed spraying pipe are coaxially arranged, and an outlet of the atomized methanol conveying pipe is communicated with the joint of the pressurized air pipe and the mixed spraying pipe. And the extension direction of the atomized methanol conveying pipe is perpendicular to the pressurized air pipe and the mixed spraying pipe. Compared with a traditional pressure atomizing nozzle, the pressure atomizing nozzle has a better atomizing effect, and liquid drop particles are obviously smaller than those of the pressure nozzle, so that methanol and air are mixed more uniformly, and combustion is more sufficient. The utility model further discloses a diesel engine comprising the atomization premixing device of the methanol diesel engine.

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 engine mixers, in particular to a single-fuel engine mixer which comprises a mixer body, an air inlet and an air outlet are formed in the two ends of the mixer body respectively, a mixer throat pipe is connected to the top of the mixer body, and an installation shell is fixed to the top of the mixer throat pipe. A filter element is mounted in the mounting shell by forming a mounting groove, and a rubber plug is embedded in the filter element; a mixing cavity facilitating mixing of natural gas and air is formed in the mixer body. The novel single-fuel engine mixer is provided with a structure for filtering air or natural gas before the air or the natural gas enters the mixer, and has a function of filtering mixed gas again before the mixed gas enters an engine, so that the quality of the mixed gas can be effectively improved.

The invention involves a system and method for providing a liquid fuel or a liquid and gaseous fuel to a diesel cycle or Otto cycle engine for operation of the engine. The system includes a primary electronic control module (ECM) which monitors engine sensors and contains least one three-dimensional (3D) fuel map for the liquid fuel and one for gaseous fuel. A gaseous fuel injection assembly is provided for the injection of the gaseous fuel to the engine. The gaseous fuel is transported on the vehicle in a liquid form and converted to a gaseous fuel via a fuel phase converter utilizing the air being drawn into the engine by the combustion process. The liquid fuel is warmed while the incoming air is cooled to increase air density of the air being drawn into the engine, thereby increasing engine performance and lowering the emissions output of the engine.

The invention discloses an engine air inlet device which comprises an air inlet channel, the air inlet channel is provided with an oil-gas mixing section, and a turbulent flow mechanism enabling air flow to move spirally is fixedly arranged in the oil-gas mixing section. According to the scheme, the problem that the oil-gas mixing effect is poor is solved.