Fuel mixture spark ignition method

FIELD: engines and pumps.

SUBSTANCE: fuel mixture spark ignition method in the spark plug consists in ignition of fuel mixture with spark with the chosen required values of current force, length and duration of spark discharge. The required values of current force, length and duration of spark discharge are preliminarily chosen from conditions of required decrease of content of hazardous substances included in exhaust gases, decrease of fuel consumption and increase of ICE power.

EFFECT: providing complete fuel combustion in internal combustion engine, reducing the content of hazardous substances in exhaust gases, fuel consumption and increasing the engine power.

3 dwg

 

The invention relates to heat engines with spark ignition of the combustible mixture, in particular to methods of spark ignition of the combustible mixture in internal combustion engines.

The invention can be used in spark ignition systems of internal combustion engines of automobiles.

Known methods of ignition of the combustible mixture in the internal combustion engines of vehicles by creating a spark between the spark plug sparks, long sparks with high energy, a sequence of sparks, high-frequency sparks and other

In the patent of Russian Federation №2171909 P.A. Tarasov proposes to increase the duration of the spark to a few milliseconds by introducing serial "LC" circuit is in parallel with the spark plug. The author believes that this will increase the volume of plasma. In the author's certificate of the USSR No. 1746048 Shpadi A.L. and others propose to form the plasma by feeding on the spark plug of the two pulses.

The main disadvantage of all known methods and ignition systems is that they are all created in the spark plug spark with very little current. Modern ignition systems ([1] Fig.15) current spark does not exceed 0.2 A. In [1] p.38 written: "the spark heats a small amount of the mixture to the ignition temperature". This spark does not provide effective sage the project for a combustible mixture, and the mixture in the engine burns incompletely.

Closest to the proposed method of ignition is patent RF №2339839 "Method of spark ignition of the combustible smesi (prototype method).

In the prototype fuel mixture ignite the spark with the selected desired value of the current strength of the spark, and the required value of the current strength of the spark pre-select by choosing the size of the spark gap of a spark gap and a resistance value of the high voltage wires from the condition of reducing the content of harmful substances in the exhaust gases, reducing fuel consumption and increasing power of the internal combustion engine.

The disadvantage of the prototype is that the task only selects the current sparks.

The fact that the efficiency of the ignition of the combustible mixture depends, in addition to the current spark, even from the length of the spark and its duration.

It is therefore necessary to choose the strength of the current, the length and duration of the spark.

The aim of the invention is the provision of complete combustion of fuel in an internal combustion engine, a significant decrease in the content of harmful substances in the exhaust gases, reducing fuel consumption and increase engine power.

This objective is achieved in that the combustible mixture ignite the spark with the necessary values of the current strength, length and permanent the particular spark discharge moreover, the necessary current values, the length and duration of the spark is pre-selected from the conditions required to reduce the content of harmful substances in the exhaust gases, reducing fuel consumption and increasing power of the internal combustion engine.

The length of the spark is equal to the size of the gap between the electrodes of the spark plugs.

In this way choose, in essence, the spark energy. However, the current, the length and duration of the sparks have different effects on the efficiency of the ignition of the combustible mixture. Therefore, these parameters sparks need to choose separately.

Selected for the implementation of the proposed method, the ignition device based on patents of the Russian Federation No. 2107184 and No. 2151321.

Drawings of the device for realization of the proposed method is shown in figure 1, figure 2 and Figure 3. In the drawings, the following notation of the elements of the device:

1. Unit electronic ignition

2. The primary winding

3. Ignition coil

4. The secondary winding

5. The first electrode

6. The discharger

7. The second electrode

8. Distributor

9. Resistor

10. The Central electrode

11. Spark plug

12. Electrode

13. Capacitor

14. High voltage wire

15. High voltage wire

16. High voltage wire

17. Parasitic capacitance

18. Diode

19. High voltage capacitor

the Lok electronic ignition 1 (Figure 1) is connected with the primary coil 2 of the ignition coil 3, which also contains the secondary winding 4. High voltage output secondary winding 4 is connected to the first electrode 5 of the spark gap 6. The second electrode 7 of the spark gap 6 is connected to the distributor 8 and a resistor 9. The distributor 8 is connected with the Central electrode 10 of the spark plug 11. The side electrode 12 of the spark plug 11 is connected through a capacitor 13 to a low voltage output of the secondary winding 4 of the ignition coil 3. High-voltage wires 14, 15 and 16 connect, respectively, the high voltage output secondary winding 4 with the first electrode 5 of the spark gap 6, the second electrode 7 with the distributor 8 and the distributor 8 to the Central electrode 10 of the spark plug 11. Parasitic capacitance 17 of the secondary winding 4 is connected in parallel to the secondary winding 4.

Figure 2-side electrode 12 is connected to the low voltage output of the secondary winding 4 of the ignition coil 3 directly.

Figure 3 introduced the diode 18 and the high-voltage capacitor 19. High voltage output secondary winding 4 is connected to the diode 18, a capacitor 19 connected between the output of the diode 18 and a low voltage output of secondary winding 4. The output of the diode 18 is connected to the first electrode 5 of the spark gap 6.

The proposed method can be implemented using the above described device is as follows.

The differential voltage output unit electr the spent ignition 1 (Figure 1) serves the primary winding 2 of the ignition coil 3, who induct on the secondary winding 4 of the high-voltage pulse voltage. From the high-voltage output of the secondary winding 4 of the high-voltage pulse voltage is served on the first electrode 5 of the spark gap 6. Between the first 5 and the second electrodes 7 of the spark gap 6 electrical discharge occurs. The discharge current with a high voltage from the second electrode 7 is fed through the distributor 8, resistor 9, to the Central electrode 10 of the spark plug 11. In the spark gap of the spark plug 11 is formed between the 10 Central and side electrodes 12, there is an electrical discharge. Pulse discharge current from electrode 12 to return to the secondary winding 4 through the condenser 13.

The chain, which takes the current sparks, consists of high-voltage wires 14, 15, 16, the spark gap 6, the distributor 8, the spark plug 11, the capacitor 13 and the parasitic capacitance 17 of the secondary winding 4 of the ignition coil 3.

The fact that the wires of the secondary winding 4, which has a substantial electrical resistance and a large inductance, the current spark cannot pass, because the pulse duration of the spark does not exceed microseconds. Current sparks passes only through the "parasitic" capacitance 17 output of the secondary winding 4.

In some cases, depending on the electric circuit of the ignition unit 1, the current spark rasra is and from electrode 12 to return to the secondary winding 4 wire (Figure 2).

Figure 3 pulse voltage output from the secondary winding 4 through the diode 18 charges the capacitor 19 to a high voltage. The accumulated charge of the capacitor 19 can increase the spark energy.

Consistently enabled discharger 6, allows to increase the voltage and current of the spark. By increasing the size of the spark gap of a spark gap 6 can be increased voltage sparks and up to 25 kV and 100 kV or more. This is because the output voltage of the secondary winding 4 must simultaneously "punch" and the gap between the electrodes of the spark plug 11, and a large spark gap of a spark gap 6.

In existing systems, ignition, no spark gap, the voltage a little spark, as a small spark plug gap breaks voltage of 6-10 kV.

The funds necessary to select amperage, length and duration of sparks following:

1. To change the voltage sparks and select the desired current magnitude of sparks must be made dischargers with different parameters. The parameters of a spark gap is the size of the spark gap, the diameters of the electrodes, their shape and material. To make dischargers in accordance with the patents of the Russian Federation No. 2107184 and No. 2151321.

2. To select the desired resistance of the discharge circuit must be high-voltage wires with different resistances (figure 1, 2, 3). Currently in EMEA there are many types of high-voltage wires with different values of electrical resistance. In [1] p.32 written:

"Our red high voltage wires are distributed resistance of 2 ohms per meter length... For high energy ignition ... use the blue wire... with distributed resistance 2,55 com... Foreign high-voltage wires... the value of the distributed resistance may be in the range of 9-25 com... ". In fact, there are significantly more wires with different resistances. There are wires and with close to zero resistance. Thus, to select the current value of sparks has a set of high voltage cables with different impedances.

3. To select the desired resistance of the discharge circuit in the distributor cap need to install resistors with different resistance values. Commercially available resistors with any value of resistance. If necessary, you can short-circuit the resistor wire.

4. Spark plugs should be without built-in resistors, with close to zero resistance.

5. To select the desired settings sparks need to use a powerful industrial high voltage power supply providing a regulated output voltage and spark energy of at least 100 kV and 1 kJ, respectively.

6. High voltage output high voltage source connected to the resistor, and the other wire (the stroke) resistor across the capacitor is connected to the output of a source with zero potential. Source output with variable spark energy is a common connection point of the resistor with a capacitor. The energy of the spark discharge change by the proper choice of the parameters of the resistor and capacitor.

7. The length of the spark change by changing the spacing between the electrodes.

Method, procedure, algorithm select the desired current, length and duration of the spark in the spark plug is as follows:

1. The initial duration of the spark must comply with spark energy of 50 MJ. For this purpose, the output of the high voltage source values of the resistor and capacitor is chosen from the condition that the initial spark energy was 50 MJ.

2. The initial length of the spark must be equal to 0.5 mm.

3. The initial output voltage of the high voltage source with variable spark energy install 25 kV.

4. The initial shock, sparks, measured by the instruments or calculated voltage sparks and the circuit resistance of the discharge, should be about 1 A.

5. Check the specifications of the engine, namely the level of harmful emissions of the engine, its power and efficiency.

6. If the engine performance is not satisfactory, the high voltage source, parameters of a spark gap and discharge circuit sequentially increase the current sparks, checking engine performance for each value that is and sparks, until you have obtained the required characteristics of the engine. To increase the current sparks increase the voltage source, increase the spark gap of a spark gap, reducing the resistance of the discharge circuit, reduce the resistance of the spark gap by appropriate choice of the diameter, shape and material of the electrodes.

7. If the required characteristics of the engine cannot be obtained, then successively increase the length of the spark, repeating the whole procedure of choice for pp.5-6 for each value of the length of the spark until you have obtained the required characteristics of the engine.

8. If the required characteristics of the engine still cannot be obtained, then the choice of the parameters of the resistor and capacitor at the output of the high voltage source with variable spark energy, consistently increase the duration of the spark, repeating the whole procedure of choice for pp.5-7 for each value of the duration of the spark until you have obtained the required characteristics of the engine.

The above procedure of selection is made on a special stand designed for measurement of emissions, fuel consumption and engine power. For example, in the US or MADI.

On the same stand, measure the desired current value, the length and duration of the spark.

Dramatically improved performance of the engine occurs when the selected current value of the sparks reach values comparable or even large lightning current. It is about 10000000 times more current spark in modern cars. With such large currents spark emits a powerful light and other radiation, which ignited combustible mixture throughout the volume of the combustion chamber.

The invention allows to save fuel, increase power of the engine of the vehicle, virtually eliminates almost all harmful emissions.

Selected current value, length and duration of the spark can be used to create and mass industrial production of effective ignition systems.

The invention to be used in internal combustion engines with spark ignition will significantly reduce toxic emissions, saving fuel and increase engine power.

Sources of information

1. Ross Twig. Ignition systems of cars. M., "driving" 1997

The way of spark ignition of the combustible mixture by the electrical discharge in the spark plug in which a combustible mixture ignite the spark with the selected desired value of the current strength of the spark discharge, characterized in that the combustible mixture ignite the spark with the necessary values of the current strength, length and duration of the spark discharge, and the necessary current values, the length and duration of the spark pre-select which of the conditions required to reduce the content of harmful substances in the exhaust gases, reducing fuel consumption and increasing power of the internal combustion engine.



 

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