Method of and system to prepare and deliver fuel-water emulsion into internal combustion engines and remove of non-used fuel-water emulsion from standard fuel system

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed method to prepare and deliver fuel-water emulsion into internal combustion engine and remove non-used fuel-water emulsion from standard fuel system includes delivery of fuel, water, and liquid additions, their mixing to from homogeneous emulsion and delivery of said emulsion into standard fuel system. Two emulsifiers are used to emulsify components. First emulsifier operates for suction from standard fuel pump, and second one operates for delivery from the same pump. At suction stage flow of components is saturated with atmosphere air, and at delivery stage, air is forced out. Proposed system for preparation and delivery of fuel-water emulsion into internal combustion engine and removal of non-used fuel-water emulsion from standard fuel system contains fuel tank, reservoir with water, water filter, fuel filter, meters, standard fuel pump, fuel-feed pump and first emulsifier. System contains also second emulsifier and container with additions. First emulsifier operates for suction from standard fuel pump, and second emulsifier operates for delivery from the same pump. Fuel-feed pump provides evacuation of non-used fuel-water emulsion from standard fuel system after stopping of internal combustion engine and it feeds pure fuel into standard fuel system when switching on ignition.

EFFECT: possibility of preparation of fuel-water emulsion which can be used in engines without modification of standard fuel system.

7 cl, 2 dwg

 

The invention relates to internal combustion engines (ice), more specifically to methods and systems for obtaining and supplying the fuel-water emulsion in a regular fuel system of the engine.

As you know, the humidification of the fuel-air mixture fed to the cylinders of the internal combustion engine can improve the efficiency, environmental performance and temperature of the internal combustion engine to increase the engine power and the ability to run on low-octane fuel without detonation, and also cleans the combustion chamber of carbon, which, in turn, reduces the likelihood of detonation and overheating of the engine. Particularly relevant is the use of fuel-water emulsion in the case of non-fuel GOST and TU.

Reducing fuel consumption and improving environmental performance is achieved due to more complete combustion of fuel and the impact of water vapor formed on the piston as an additional driving force.

Improvement of the temperature regime is achieved by lowering the temperature associated with the evaporation of the water component of the emulsion.

The power increase due to higher thermal efficiency and the possibility of increasing the degree of compression.

The possibility of using low-octane fuel in a high compression ratio is due to the fact that water vapor suppress detonation.

) Is there are several methods of humidification of the fuel-air mixture. There is a method of humidifying the fuel-air mixture by means of water spray (patent RF 2092709 from 10.10.97). The disadvantage of the method is implemented in the device, embedded in the carburetor, due to the vacuum after the throttle valve, which does not allow to obtain high dispersion of the fuel-water emulsion.

There is a method of saturation of the air-fuel mixture of water vapor produced by the heat of exhaust gases (RF patent 2136942 from 10.09.99). The disadvantage is the necessity of using high-performance steam generator and the relatively low energy of the possibility of using water vapor.

There is a method of injecting water into the cylinder during the stroke of the piston (RF patent 2069274 from 20.11.96). The disadvantage is the complex regulation of water flow into the cylinders of the engine and no formation stage vysokogomogennogo fuel mixture.

There is a method of saturation of the fuel mixture with water vapor due to the preliminary education of air-water mixture, transfer it into superheated steam and suction in the intake manifold (RF patent 2094642 from 27.10.97). The disadvantage is the possibility of formation of excessive condensation in the intake manifold, which leads to instability regime parameters.

There is a method of humidifying air supplied by a compressor, through a counter flow of water vapor and air, the passage is related via moisturizer (RF patent 2136041 from 25.02.94). The disadvantage of the method is applicable mainly for systems with turbo.

Common positive factor of these methods is the lack of an excessive accumulation of the humidified fuel mixture, difficult to start the engine.

A common disadvantage is the complex system of fuel-water emulsion and feeding into the cylinders of the engine, requiring the use of such devices and techniques, as steam, water level controls, turbulization flows of fuel-air mixture.

There is also known a method of suppressing detonation feed into the intake manifold of an aqueous solution of ammonia (RF patent 2072438 from 27.01.97). The disadvantage of ammonia is corrosive to some metals and the preparation of an aqueous ammonia solution of a given concentration complicates the preparation of the fuel mixture.

Technologically more rational method of obtaining fuel-water emulsion by direct mixing of fuel and water in certain proportions to the state of a homogeneous emulsion and submission of this emulsion in a regular fuel system. In addition, the claimed method has a number of advantages, namely: the resulting fuel-water emulsion has a higher energy parameters, due to the almost complete use of force on the piston razoobrazny the th of the combustible component of the emulsion and water vapor, formed in the cylinder; a system for the production of fuel-water emulsion can be easily integrated into the regular fuel system; at the same time together with water and fuel, you can apply and emulsify other combustible and non-combustible components.

Closest to the claimed invention is a method contained in the patent of the Russian Federation 2099575 from 20.12.97, whereby obtaining a fuel-water emulsion is carried out in three stages: initially formed under the pressure of an air-water mixture, then the mixture and the fuel coming in a regular disperser, which is "crushing" water electric discharge and partial emulsification of fuel, and at the last stage is the final emulsification of the fuel-water-air mixture then flows to the injectors. The essence of this invention lies in the fact that the factory fuel injection system between the dispersant and the fuel high-pressure pump is installed emulsifier, the system is equipped with a bypass line providing the engine clean fuel, the dispersion is produced by applying a pulsed electrical discharges in water. The water supply system in the dispersant and the duct includes a hydraulic accumulator, air receiver, gas reducer, Electromechanical valve, solenoid valve, record the water project, the water dispenser. The mixture supply system includes a fuel pump low pressure and high-pressure emulsifier with the drive, the injector installed in the combustion chamber. The excess fuel-water emulsion that has accumulated in the injector, enter the emulsifier. Because the specified method of obtaining fuel-water emulsion and feeding it into the cylinders of the internal combustion engine is specialized for diesel engines, a standard system which includes a dispersant and a system of forming a high-voltage electric discharge, then this part of the system of partial emulsification of fuel in water is not considered. Schematic diagram of the fuel injection means are examined next. Initially, water and air are fed to a hydraulic accumulator under pressure, where through the dispenser air-water mixture enters the dispersant, and at the same time via a pump low pressure disperser is supplied fuel. Of the dispersant water-air mixture, partially emulsified fuel, served in the emulsifier, which feeds the high pressure pump, and then through fuel line high pressure through the nozzle enters the combustion chamber. The disadvantage of the system is that it is overly complicated metering and control devices, including the dosing of air in water under pressure is the group. In addition, does not contain information about the type of emulsifier, indicated only the presence of the drive.

Method and system for obtaining and supplying the fuel-water emulsion and the preparation for the start of the internal combustion engine taken as a prototype.

The aim of the present invention is to implement all of the listed benefits of humidification of the fuel-air mixture by direct mixing of fuel, water and other combustible and non-combustible liquid media and obtaining in this way the emulsion is suitable for use in all internal combustion engines without changes to the staff handling system.

The technical problem is getting the fuel-water emulsion, based on the direct mixing of fuel, water and possible accompanying liquid additives and implementation of a system that is built into the standard fuel injection system of internal combustion engines, and without providing a special control devices stable starting of the engine, the subsequent operation of the engine in a steady mode and prepare for the next launch associated with rosslea fuel-water emulsion.

Technical result achieved - ensuring the best indicators of efficiency, environmental friendliness and temperature conditions of the engine; greater use of low-octane fuel; easy to the reconstruction and installation; applicability to vehicles in operation.

The achievement of the technical result is as follows.

In the method of obtaining and supplying the fuel-water emulsion in an internal combustion engine (ice) and removal from the regular fuel system unused fuel-water emulsions, including fuel, water and liquid additives, their mixing to obtain a homogeneous emulsion, applying the specified emulsion in a regular fuel system according to the invention emulsification supplied components by means of two emulsifiers, the first of which operates in suction mode from a regular fuel pump, and the second mode of discharge from the same pump at the same time on stage suction is the saturation flow of the blend components of the atmospheric air, and at the stage of discharge - air displacement. After stopping the internal combustion engine are removed unused fuel-water emulsion of the regular fuel system using the pre-supply fuel pump with electric and drainage devices built into the specified fuel system. Unused fuel-water emulsion after removal from the regular fuel system enters the sump, where, after start of the internal combustion engine through a suction staff Topley is pushed by the pump enters the system and supplying the fuel-water emulsion. When the ignition is in the normal fuel system is clean fuel through the pre-supply fuel pump. The supply of clean fuel standard fuel system stops upon reaching the readiness of the fuel-water emulsion to fire.

System preparation and supply of fuel-water emulsion in an internal combustion engine (ice) and removal from the regular fuel system unused fuel-water emulsion comprising a fuel tank, a container of water, a water filter, fuel filter, dispensers, a regular fuel pump, feed pump, the first emulsifier, according to the invention contains a second emulsifier, a container of additives, the first emulsifier is working in the suction mode from a regular fuel pump, the second emulsifier is discharge from the same pump, fuel pre-supply pump, involved in the removal of unused fuel-water emulsion of the staff the fuel system after stopping the internal combustion engine and supplying clean fuel standard fuel system when the ignition is switched on. The system contains a timer or sensor, or pressure sensor, or speed sensor, and the supply of clean fuel standard fuel system is terminated by disabling the pre-supply fuel pump via a timer or sensor, or pressure sensor is Oia, installed in the main fuel line supply fuel-water emulsion, or speed sensor.

Blending components derived fuel emulsion is produced in two static emulsifiers labyrinth type that provides a simple construction and small energy consumption. The intensification of the process is achieved by the fact that the first emulsifier is set before the regular fuel pump and operates in suction mode, and the subsequent emulsification of supplied components in the presence of atmospheric air. The second emulsifier is set for the specified fuel pump and operates in the mode of mixing, increasing the homogeneous quality of the primary emulsion, and discharge of the resulting emulsion with the displacement of the contained air, and then supplied into the cylinder. In this case, in addition to the main mixing process, the principle of bubbling atmospheric air. Both of emulsifier are at the entrance of three nozzles, two of which are located in such a way that they create in the Central part of the inlet zone of underpressure. In the first emulsifier in one of these nozzles is supplied fuel, the other with water. In the second emulsifier in both pipe enters the primary emulsion. The third pipe is installed along the axis of emulsifiers and is: in the first emulsifier for the supply of other components, in the example, ethyl or methyl alcohol, glycerin, aqueous ammonia, and the second is to enhance the circulation movement of the emulsion. The outlet of each emulsifier is carried out through the nozzle located at the opposite end of emulsifier on its axis.

The principle of the emulsifiers is to split the incoming flow of liquids in thin intersecting streams than homogeneous mixture is formed without mechanical or electric drive emulsifiers. The second emulsifier and a regular fuel pump is additionally connected by a fuel line, the entrance to which is from the side of the fuel line supplying the fuel-water emulsion is after the second emulsifier, and the output is before the specified pump. Thus, excess fuel-water emulsion is continuously circulated in a closed fuel circuit, passing repeatedly through the second emulsifier before serving in the regular fuel system.

Additionally, these emulsifiers can be installed in the device, causing cavitation.

The interaction of the resulting emulsion with air is carried out in the normal fuel systems without the use of special devices. The dosing of the components of the mixture is carried out by the jets, we select the bandwidth.

Because the produced emulsion in the liquid phase is lying to who authorized the range of its validity, calculated a few minutes, then comes Rosslau, after stopping the engine, the emulsion is removed from the regular fuel system by suction. The homogeneous fuel-water mixture suitable for ignition, also has its own time interval, so when the engine is started in a normal fuel system is clean fuel when deactivated, the feed emulsion. Remove the fuel-water emulsion and the supply of clean fuel pre-supply fuel pump with electric included directly from the battery after the engine stop. After the engine start disabling the specified fuel pump or via a timer, or from the speed sensors, pressure and temperature.

The system of preparation of the fuel-water emulsion is mounted as a single unit or in a branched form, depending on placement opportunities in the engine compartment.

Drawings illustrating the invention:

figure 1 - system preparation and supply of fuel-water emulsion;

figure 2 - supply system clean fuel and removal from the regular fuel system unused fuel-water emulsion.

Filing and collection of fuel and water emulsion is carried out as follows.

A regular fuel pump 13 at the open valve 4 and the electromagnetic clap the e 30 pumps mixed components from the fuel tank 1, water tanks 2 tanks, tanks with additives 3 and through a water filter 5, the check valve 6, the fuel filter 9, dispensers 7, 8, 10 and the first emulsifier 11, where the initial emulsion is fed into the main fuel line 12 supplying the fuel-water emulsion. The resulting primary emulsion is pumped to the second emulsifier 14, provided with a circulation system 15, which is the final emulsification with a simultaneous flow of the emulsion through the electromagnetic valve 16 in a regular fuel system 18. Depending on the flow rate varies, the speed of circulation of the multi-component fuel mixture.

The supply of clean fuel and removal from the regular fuel system unused fuel-water emulsion is carried out as follows. When the ignition is triggered by opening the electromagnetic valve 30 and the closing of solenoid valve 16. Simultaneously, the pre-supply fuel pump 21 with the actuator. Specified pre-supply fuel pump 21 when the open solenoid valve 22 through fuel line 19 and through the box 17 delivers clean fuel standard fuel system 18. The excess fuel back to the fuel supply line 23 is pumped into the fuel tank 1. Direct supply of clean fuel shut off when trigger off timer 24, which is rationally at positive temperature is masterlogo air, or when reaching the set temperature of the heating fixed by the temperature sensor 25, or, depending on the readings of the pressure sensor 26. Manual switching is used as a backup.

At the moment the ignition is switched off from the battery again starts the pre-supply fuel pump 21. When closed electromagnetic valves 16, 20, 22 and open the solenoid valve 30 through the drainage device 27 is installed in the intake manifold, or in the fuel pit, or in the float chamber, through the box 28 and box 29 fuel-water emulsion is pumped into the settling tank 31, which when the engine enters the system and supplying the fuel-water emulsion through fuel line 32.

For the implementation of this method and this system preparation and supply of emulsion used items, used in the carburetor, fuel injection and gas-fired internal combustion engines. In addition, use only the specified first and second emulsifiers. As a note, it should be noted the need to replace malosetti metal filters in the filters of a different design.

The claimed invention into practice may be implemented as factories and small enterprises, including in the service centres of vehicles using existing parts, mate the print materials and technologies.

1. The method of obtaining and supplying the fuel-water emulsion in an internal combustion engine (ice) and removal from the regular fuel system unused fuel-water emulsions, including fuel, water and liquid additives, their mixing to obtain a homogeneous emulsion, applying the specified emulsion in a regular fuel system, characterized in that the emulsification of supplied components by means of two emulsifiers, the first of which operates in suction mode from a regular fuel pump, and the second mode of discharge from the same pump at the same time on stage suction is the saturation flow of the blend components of atmospheric air, and at the stage of discharge - air displacement.

2. The method according to claim 1, characterized in that after stopping the internal combustion engine are removed unused fuel-water emulsion of the regular fuel system using the pre-supply fuel pump with electric and drainage devices built into the specified fuel system.

3. The method according to claim 2, characterized in that the unused fuel-water emulsion after removal from the regular fuel system enters the sump, where, after start of the internal combustion engine through a suction regular fuel pump enters the system preparation and supply of fuel and water emuls is I.

4. The method according to claim 2, characterized in that when the ignition is in the normal fuel system is clean fuel through the pre-supply fuel pump.

5. The method according to claim 4, characterized in that the supply of clean fuel standard fuel system stops upon reaching the readiness of the fuel-water emulsion to fire.

6. System preparation and supply of fuel-water emulsion in an internal combustion engine (ice) and removal from the regular fuel system unused fuel-water emulsion comprising a fuel tank, a container of water, a water filter, fuel filter, dispensers, a regular fuel pump, feed pump, the first emulsifier, characterized in that it contains a second emulsifier, a container of additives, the first emulsifier is working in the suction mode from a regular fuel pump, the second emulsifier is discharge from the same pump, fuel pre-supply pump shall remove unused fuel-water emulsion of the standard fuel system after you stop the engine, and delivers clean fuel standard fuel system when the ignition is switched on.

7. The system according to claim 6, characterized in that it contains a timer or sensor, or pressure sensor, or speed sensor, and the supply of clean fuel standard fuel system stun is moved off the pre-supply fuel pump by means of a timer, or temperature sensor, or pressure sensor installed in the main fuel line supply fuel-water emulsion, or speed sensor.



 

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