RU2647355C2 - Gasoline pump with fuel homogenisation - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: gasoline pump comprises an intake pipe 1 and a compensation chamber 2 connected to input of intake valve 3, the output of which is connected to accumulation chamber 4 which form a body 5 and a membrane 6 fixed on a rod 7 which is the core of electromagnet 8. The electromagnet 8 is connected to output of symmetrical-asymmetric signal converter 9, which input receives signal from a modulator 10, which one input is connected to an ultrasonic oscillator 11, the second one is connected to voltage-to-frequency converter 12. The input of the voltage-to-frequency converter 12 is connected to position sensor output of the throttle valve 13. The accumulator chamber 4 is connected to the output valve 14. Due to the cavitation effect used in the device, liquid fuel of viscous and highly viscous types is processed.

EFFECT: increased ecological purity of engine exhaust gases due to more complete combustion of fuel-air mixture and reduced fuel consumption.

1 dwg

Description

The invention relates to engine building and can be used to prepare fuel before feeding it to the combustion chamber by its energy saturation by an external combined effect.

A device is known for energy saturation of liquid fuel [1], which provides fuel processing due to the influence of magnetic fields on its dipole particles induced by inductors when various types of control signals are applied to them, as well as by reducing the surface tension coefficient of the fuel, achieved by imparting vibrational or rotational motion of a permanent magnet, occupying - depending on the control signals - a certain position relative to the vectors or the resulting vector ra magnetic induction coils.

The disadvantage of this device is that it is passive and the use of an additional external pump is necessary to ensure the passage of fuel through it.

Of the known technical solutions, the closest in technical essence is an ultrasonic hydrodynamic emitter [2], designed to obtain fine emulsions. During the operation of such a device, the liquid enters the vortex chamber of the emitter through the tangential inlet openings and, under the influence of centrifugal forces, forms a swirling liquid vortex flow in the vortex chamber. In this case, a vacuum zone is formed in the vortex chamber. An additional swirl of the gas-liquid flow and an even more intense dispersion of the liquid take place in the outlet nozzle. The described hydrodynamic emitter allows the processing of fluid in a stream.

The disadvantage of this device is that it does not achieve a sufficiently high degree of homogenization and dispersion of the liquid in the entire range of engine speeds, since the emulsion of the fuel depends on the speed of the liquid.

Existing fuel supply devices for engines, for example fuel pumps of the type 2101-1106010 [3], do not carry out preliminary preparation of fuel in order to increase the efficiency of its combustion in the engine, only pumping from the fuel tank. The pump is mounted on the side wall of the crankcase with two bolts. The outer end of the drive lever abuts against the camshaft cam. A rotating camshaft with its eccentric at each revolution pushes the outer end of the drive lever and rejects it. At the same time, the inner end of the drive lever, lowering, pulls the rod and the associated diaphragm down. The spring located under the diaphragm is compressed, and a vacuum is created above the diaphragm sandwiched between the body and the cover, under the influence of which fuel is sucked into the chamber from the tank through the filter settler and the opening intake valve. When the protrusion of the eccentric comes off the outer end of the actuator lever, the diaphragm with the rod moves upward under the action of the spring, pressure is created in the chamber above the diaphragm and the fuel is displaced through the discharge valve into the exhaust channel and then through the tube into the carburetor float chamber. The air in the chamber above the discharge valve, compressing, reduces the sharpness of the pulsation of the fuel. The spring pressure elasticity is selected so that when the float chamber is full, the fuel pressure cannot forcefully open the carburetor needle valve, and the fuel supply to the float chamber is stopped. In this case, the diaphragm with the rod and the inner end of the drive lever will be stationary in the lower position, and the outer end of the drive lever will swing idle due to the gap between the ends of the drive levers mounted on the axis.

The disadvantage of this device is that it is intended only for pumping fuel without changing its physical and mechanical properties.

The present invention is directed to the continuous processing of fuel by an external combined effect (electromagnetic and acoustic) with its subsequent supply to the combustion chamber of the engine.

SUBSTANCE: fuel supply is regulated electromagnetically by changing the envelope frequency of the modulated signal, the carrier of which causes cavitation processes in the fuel flowing through the accumulation chamber of the fuel pump.

Comparable analysis with the prototype shows that the claimed device meets the criterion of "novelty", as it has significant differences from the prototype: the rod control mechanism consists of an electromagnet connected to the output of the signal converter symmetric-asymmetric, the input of which receives a signal from the modulator, one input of which connected to the generator of ultrasonic vibrations, and the second to the voltage-frequency converter, while the input of the voltage-frequency converter is connected to the output of the position sensor d osselnoy flap.

The technical result from the use of the device is to increase the environmental cleanliness of the exhaust gases of the engine due to more complete combustion of the air-fuel mixture and reduce fuel consumption.

The technical result is achieved in that the fuel supply is carried out by controlling the movement of the membrane rod by an electromagnet with the simultaneous superposition of high-frequency oscillations on its reciprocating motion. The movement of the core of the electromagnet, rigidly connected with the rod of the membrane, is controlled by a signal converter, which converts the symmetric signal coming from the modulator into an bipolar asymmetric signal relative to the time axis. At the same time, the carrier frequency is sufficient for the occurrence of cavitation processes in the fuel (8 ... 44 kHz) to the modulator’s input from the generator of high-frequency oscillations, and the envelope is formed by the voltage-frequency converter, the input of which is the signal from the throttle position sensor. When you press the accelerator pedal, the voltage at the output of the throttle position sensor increases, which leads to an increase in the frequency generated by the voltage-frequency converter. This, in turn, leads to an increase in the frequency of the envelope of the modulator signal, and, consequently, the frequency of the low-frequency component of the signal at the output of the signal converter. As a result, the frequency of movement of the core of the electromagnet and, consequently, the rod of the membrane increases, which leads to an increase in the amount of fuel entering the combustion chamber of the engine, causing an increase in its speed. During the entire process of passage of fuel through the pump storage chamber, it is subjected to ultrasonic treatment due to the influence of the carrier frequency of the modulated signal, which causes high-frequency oscillations of the membrane rod. When the accelerator pedal is released, reverse processes occur: the voltage from the output of the throttle position sensor decreases, causing a decrease in the frequency of the signal from the output of the voltage-frequency converter, which leads to a decrease in the envelope frequency of the modulated signal from the output of the modulator and, accordingly, from the output of the signal converter - the movement frequency the stem of the membrane decreases and the amount of fuel pumped by the pump decreases.

Due to the cavitation effect used in the device, viscous and highly viscous types of liquid fuel are processed, thereby increasing the environmental cleanliness of the engine exhaust gases due to more complete combustion of the air-fuel mixture and lowering fuel consumption.

The invention is accompanied by an explanatory drawing, which schematically depicts a general diagram of the device (drawing, arrows show the movement of fuel).

The device contains:

1 - inlet fitting;

2 - compensation chamber;

3 - inlet valve;

4 - storage camera;

5 - case;

6 - membrane;

7 - stock;

8 - an electromagnet;

9 - signal converter symmetric-asymmetric (PSSA);

10 - modulator;

11 - generator of ultrasonic vibrations;

12 - voltage-frequency converter;

13 - throttle position sensor (TPS);

14 - exhaust valve;

15 - outlet fitting.

The device (gasoline pump) consists of a fitting 1 of the inlet channel, one end of which is fixed in the fuel line of the engine, and the other end - in the compensation chamber 2, connected to the inlet of the intake valve 3, and its output is connected to the storage chamber 4, which form the housing 5 and the membrane 6 mounted on the rod 7, which is the core of the electromagnet 8. The electromagnet 8 is connected to the output of the signal converter symmetric-asymmetric 9, the input of which receives a signal from the modulator 10, one input of which is connected to the generator ul ultrasonic vibrations 11, the second one with a voltage-frequency converter 12. The input of the voltage-frequency converter 12 is connected to the output of the throttle position sensor 13. In turn, the storage chamber 4 is connected to the exhaust valve 14, through which the processed fuel is supplied to the outlet 15 channel and further towards the combustion chamber of the engine.

The operation of the device for energy saturation of liquid fuel is as follows. When the engine is turned on, the TPS 13 generates a signal proportional to the opening angle of the throttle valve and transfers it to the voltage-frequency converter 12, which, in turn, converts the voltage into a low-frequency harmonic signal supplied to one of the inputs of the modulator 10. To the second input of the modulator 10 a high-frequency signal comes from the ultrasonic oscillation generator 11, which starts to generate a signal when the engine is turned on. Modulator 10 modulates the low-frequency signal (envelope) with a high-frequency signal (carrier). The modulated signal is fed from the output of the modulator 10 to the input of the PSSA 9, which forms a bipolar signal asymmetric with respect to the “time” axis (in the “amplitude-time” coordinates) and transfers it to the input of electromagnet 8. The rod is in the negative half-period of the low-frequency component (envelope) 7 of an electromagnet 8 with a membrane 6 fixed to it, moves in the direction opposite to the compensation chamber 2, thereby causing a vacuum in it. In this case, the inlet valve 3 opens and the fuel through the inlet channel 1 connected to the compensation chamber 2 enters the accumulation chamber 4 of the housing 5 (at this moment, the exhaust valve 13 is closed). In the positive half-cycle of the low-frequency component (envelope), the rod 7 of the electromagnet 8 moves towards the compensation chamber 2, creating excessive pressure in the storage chamber 4, while the inlet valve 3 closes, and the exhaust valve 14 opens and the processed fuel through the fitting 15 of the exhaust channel enters the fuel line - towards the combustion chamber of the engine.

While the fuel is in the storage chamber 4 — due to the high-frequency vibrations of the membrane 6 mounted on the rod 7 of the electromagnet 8, caused by the carrier of the modulated signal coming from PSSA 9 — intensive cavitation processes occur in the fuel (the so-called “liquid continuity gap”), which reduce surface tension coefficient.

To increase engine speed, it is necessary to increase the opening angle of the throttle valve, which will cause an increase in voltage with a DPDZ 13. In this case, the voltage-frequency converter 12 will increase the frequency of the output signal (envelope) in proportion to the increase in voltage. This will lead to the fact that the frequency of the envelope of the modulated signal generated by the modulator 10 also increases. Accordingly, the frequency of the low-frequency component of the signal from the output of the PSSA 9 will increase, which will lead to a more frequent change in the direction of movement of the rod 7 of the electromagnet 8 with the membrane 6 fixed on it. As a result, the volume of fuel passing through the device will increase, thereby increasing engine speed.

To reduce the engine speed, it is necessary to reduce the opening angle of the throttle, which will cause a decrease in voltage with a DPDZ 13. The voltage-frequency converter 12 will reduce the frequency of the output signal in proportion to the decrease in voltage. The envelope frequency of the modulated signal generated by the modulator 10 will also decrease. Accordingly, the frequency of the envelope from the output of PSSA 9 will decrease, which will lead to a decrease in the frequency of movement of the rod 7 of the electromagnet 8 with the membrane 6 fixed to it. As a result, the volume of fuel passing through the device will decrease and the speed of the engine crankshaft will decrease.

In this case, regardless of the engine speed, the fuel in the storage chamber undergoes ultrasonic treatment.

The experiments showed that the optimal range of the carrier frequency of the modulated signal is 10 ... 25 kHz. The experimental setup was tested in laboratory conditions and showed high efficiency (reduction in hourly fuel consumption on a D-240 diesel engine to 9.2%).

Sources used

1. Patent of the Russian Federation RU 2463472. Device for energy saturation of liquid fuel. Simdyankin A.A. Simdyankina E.E. Kaykatsishvili G.Z. Published on October 10, 2012.

2. USSR SU 1532083. Ultrasonic hydrodynamic emitter. Mutovkin V.V. Shapoval I.F. Chizhov V.I. Yakubovsky E.P. Published on December 30th, 1989.

3. V. Vershigora, V. Zeltser. Parts catalog of the Lada car VAZ-2101, VAZ-2102, VAZ-21011, VAZ-2103. - M .: Mechanical Engineering, 1977 .-- 224 p.

Claims (1)

A gasoline pump including an inlet fitting, one end of which is fixed in the engine fuel line, and the other end is in a compensation chamber connected to the inlet valve inlet, and its outlet is connected to a storage chamber, which is formed by a housing and a membrane fixed to the rod, characterized in that the stem control mechanism consists of an electromagnet connected to the output of the signal converter symmetric-asymmetric, to the input of which a signal from the modulator is received, one input of which is connected to the generator ultrasonic vibrations, and the second with a voltage-frequency converter, while the input of the voltage-frequency converter is connected to the output of the throttle position sensor.

Images