The ignition system and method of supplying charge from a variety of charging means many tools of the accumulation of charge in the ignition system

 

(57) Abstract:

The invention relates to ignition systems, in particular to the ignition system of internal combustion engines, and enables you to improve the mode of engine operation by creating a spark discharge with the desired characteristics. In the ignition system with many charging means and the many tools the accumulation of charge and a means of sparking with a primary coil and a secondary coil connected to a spark gap, at least one of the charging means is designed to feed all of its charge to one of the means of accumulation of charge, first or second, while both means of accumulation of the charge is made with the possibility of discharge for co-initiating means for sparking the formation of sparks and connected with the primary coil sparking tools. How is that carried out the distribution of the charge at least from one of the many charging means each of the means of accumulation of charge and the distribution charge from at least one of the charging means to one of the many tools available to the accumulation of charge. 2 C. and 12 C.p. f-crystals, 2 Il.

The present invention relates to a method of sgorania, as well as improved system capacitive ignition.

In the automotive industry there is a tendency to use electronic ignition to improve the efficiency and mode of operation of internal combustion engines by creating a spark discharge with the desired characteristics to ignite the air-fuel mixture, especially lean mixture used in engines with stratified combustible mixture.

However, in systems capacitive ignition, where in a relatively short time interval may be sufficient voltage spark discharge, spark discharge, caused by stress, usually has a relatively short duration. This relatively short duration of the spark discharge is even more evident in the system capacitive ignition with malaikottai high voltage means of accumulation of charge, as, for example, a capacitor. High voltage will cause the passage of a large discharge current through the primary coil of the ignition system for initiating the necessary voltage spark in the secondary coil of the ignition system, so as to form a spark discharge in the spark gap. However, the small size of the limit is alnost spark discharge provide such well-known ignition systems, it may be too short for proper ignition of air-fuel mixture, especially lean mixture. This leads to harmful contaminants and, as a consequence, undesirable operational characteristics of the engine.

Increasing the capacity of the means of accumulation of charge or capacitor would not lead to a significant increase in the duration of the spark discharge, and only would have caused a stronger spark discharge. Another solution consists in the use of resistance in the primary circuit to reduce the speed of discharge, also would reduce the magnitude of the discharge current and the energy used to spark discharge.

Known ignition system, containing many bit of money (the transformer), at least one of which is intended to supply charge to the many tools of accumulation of the charge, that is, the capacitors (see U.S. patent N 3861368, CL F 02 P 3/06, 1975).

From U.S. patent N 3861368 also known a method of supplying charge from a variety of charging means many tools of the accumulation of charge in the ignition system, including the distribution of the charge from at least one of the charging /P> A known method and system peculiar to the above-mentioned disadvantages, including the insufficient duration of the spark discharge, leading to sub-optimal mode of ignition of air-fuel mixture in internal combustion engines.

The present invention aims at eliminating the above drawbacks by creating improved method and system that provides the charge in the ignition system of internal combustion engines. The technical result is to ensure the formation of a superior and longer spark discharge at the ignition system for internal combustion engines.

This technical result is achieved by the fact that in the ignition system that contains many of the charging means and the many tools the accumulation of charge including first means of accumulation of charge and the second means of accumulation of charge, and at least one of charging means is designed to feed part of its charge to each of the tools mentioned accumulation of charge, and a means of sparking with a primary coil and a secondary coil connected to a spark gap, in accordance with the invention, at least one charging among the population of charge, both means of accumulation of the charge is made with the possibility of charge for co-initiating means for sparking the formation of sparks, both means of accumulation of the charge is connected with the primary coil sparking tools.

While many tools accumulation of charge preferably includes a means of accumulating charge different capacity, and at least one charging means is preferably coordinated with a capacity of at least one means of accumulation of charge, at least one means of accumulation of charge can have a large capacity, and at least one other means of accumulation of charge small capacity.

In addition, this system is preferably in the form of capacitive ignition.

The system preferably includes two means of accumulation of the charge, the ratio of capacitances between which is from 1:20 to 1:200, and a means of sparking provides the ignition of the fuel in the internal combustion engine.

The specified execution ignition system provides dlitelnosti spark discharge over 1.5 MS in the internal combustion engine.

When the process due to the use of more than one charging means for supplying a charge of more than one means of accumulation of charge and that when the flow of charge from a variety of charging means many tools accumulation of charge predefined by means of the accumulation of charge is capable of transmitting energy for the formation of a longer spark discharge.

When using two charging coils instead of one, and the separation of different parts generated by this wave power optimized power transmission from the charging coil to the means of accumulation of the charge, resulting in the duration of the spark charge is approximately 2 MS. This ensures optimal use of each coil by exact matching of the driving ability of each coil with the driving ability of each individual the means of accumulation of charge.

The above technical result is also achieved by the fact that in the method of supplying charge from a variety of charging means many tools of the accumulation of charge in the ignition system in accordance with the invention to carry out the distribution of the charge at least from one of the many charging means each of the means of accumulation of charge and the distribution of the charge from at least one of the charging means to one of the many tools available to the accumulation of charge.

Preferably use the first and second means accumulation of charge, while the charge from at least one of the multiple charging of funds distributed to each of the above, the first and second means nanomagnetic, first or second, the means of accumulation of charge, and first and second means accumulation of charge preferably is a means of accumulating charge different capacity.

In addition, it is preferable that at least one means of accumulation of charge has a large capacity, and at least one other means of accumulation of charge has a small capacity. While one means of accumulation of the charge is preferably receives more charge than other means of accumulation of charge, at least one charging means preferably will agree with a capacity of at least one of the means of accumulation of charge.

It is also preferable that the specified ignition system is used for ignition in an internal combustion engine.

The present invention is based on the discovery that in the process of charging two means of accumulation of charge two charging means, using the first half of the charging wave only charging means for charging a first means of accumulation of charge, and the second half of the charging wave for charging the secondary means of accumulation of charge (until the rated voltage in the second means of accumulation of charge from Poretta accumulation of charge), method can be used unbalanced charge two means of accumulation of charge through two charging means.

In one preferred variant of the means of accumulation of charge is charged by receiving approximately three half-waves, consisting of two half-waves from the first charging means and one half from the second charging means and the second means of accumulation of charge is charged by receiving the second half of the second charging means.

The result is the possibility of using more cost-effective solutions in the form of relatively inexpensive diode instead of the more expensive silicon Zener diode, as described in the application PCT/AU 91/00524, and increasing the duration of the spark discharge to a number greater than 1.5 MS.

The present invention is described below with reference to the preferred options, with reference to the drawings.

In Fig. 1 shows one exemplary embodiment of the ignition system in accordance with the present invention.

In Fig. 2 presents a diagram of another exemplary embodiment of the ignition system in accordance with the present invention.

In the system of which I am the only one charging coil for generating a charging current, distributed on two means of accumulation of charge. Until recently, small engines equipped with fuel injection systems, was not required duration of the spark discharge more than 1 MS. However, current needs in efficient combustion of fuel in internal combustion engines and wish to use the system capacitive ignition in a little more powerful engines determine the need in the duration of the spark discharge more than 1.5 MS, in order to maintain stable combustion.

When using two charging coils instead of one, and the separation of the different parts that they formed charger waves, optimizes the transfer of energy from the charging coils to many tools of the accumulation of charge or capacitors, resulting in the duration of the spark discharge increases up to 2 MS.

In the embodiment of the invention shown in Fig. 1, one charging coil (L1) is selected with a relatively low impedance and capable of delivering significant current in a capacitor with a large capacity ("the means of accumulation C1"). Rectifier consisting of diodes D4, D1 and D2, D3, provides supply to the means of accumulation of charge C1 total current generated but correspondingly higher output voltage. Thus, only needed one half created it charging waves to provide sufficient charge maloetazhnogo capacitor ("the means of accumulation C2") to a higher voltage, and therefore the other half of this charger wave is redirected to the means of accumulation C1, which is due to the large capacity limits the output voltage of the coil for this half wave. Rectifier consisting of diodes D4, D7 and D6, D3, provides supply to the means of accumulation of charge C1 and C2 of the total current that is generated by this coil (L2). Diode D5 serves as a separator of charge between the means of the accumulation of charge on C1 and C2.

Capacitor with small capacitance (C2) preferably has a capacity in the range from 0.47 to 4.7 μf, and the capacitor of a large capacitance (C1) is in the range from 22 to 680 μf.

In addition, it was found that the optimum ratio of the capacitances of the capacitors C2:C1 in the range from 1:20 to 1:200.

Moreover, it is established that, in General, the larger the capacitance value selected for C1, the more energy that can be accumulated, and therefore the greater the duration of the spark discharge.

In this embodiment of the invention both coils L1 and L2 form a full wave phase DL is t be more than one charge cycle per cycle discharge.

A significant change in the charging process is that instead of using one half from a single charging coil for charging the means of accumulation of charge C1 and the other half-wave charging means accumulation of charge C2 (before reaching the minimum voltage, for example 300 using then this second half for an additional charge means the charge accumulation C1) are two charging coils, with three half-wave charging means for accumulating charge C1 and one half-wave is a means of accumulating charge C2. In this case, as a means of separation of charge D5 can be used in both budget diode.

Supply respectively three and one half-wave half-wave potential due to the redirection of part of the charge from one coil (L2) to one of the capacitors (C1). Feeding three half to one means of accumulation of charge (C1), it is possible to store more energy in the means of accumulation of the charge, resulting in an increase in the energy supply/charge to provide a spark discharge to the longer duration spark arrester S1.

Alternatively, you can redirect one wave from L1 to C2 in a manner similar to that described above.

In Donna half-wave L1 is used for charging the means of accumulation of charge C1. However, in this embodiment, in the circuit according to Fig. 1 would require silicon Zener diode instead of the diode D5, i.e., it would be excluded advantage associated with the elimination of the use of silicon Zener diode.

In Fig. 2 shows another example embodiment of the invention, in which the means of accumulation of charge on C1 is charged by individual half-waves from the respective charging coils (L1 and L2). The rectifier of the diode D4, D1 and D7 allows you to submit two half-wave to the means of accumulation of charge C1.

Likewise another means of accumulation of charge on C2 is also charged in a separate half-waves from the respective charging coils (L1 and L2). Rectifier consisting of diodes D2, D3 and D6, allows you to apply two half-wave to the means of accumulation of charge C2.

In this embodiment of the invention both of the charging wave charging coils L1 and L2 are separated charging means accumulation of charge on C1 and C2. Each of the two charging coils L1 and L2 creates a full wave in phase, at least for one cycle of charge-discharge, the discharge cycle to feed it to the capacitors C1 and C2. Although the sequence of charging differs from the corresponding example implementation shown in Fig. 1, however, the principle of action and to the districts of charge, which can be transferred to the spark gap S1. This limit depends on the efficiency of the ignition coil T1 of energy transfer from the primary winding to the secondary winding, i.e., from the smallest rate of change of primary current, which is converted in the secondary winding. This occurs as long as the rate of change of current will not be so slow that will not excite a current in the secondary winding. At this point begins the return stroke. It is established that when the capacitor C1 with a higher capacity, equal to about 470 μf, the rate of change of current flowing in the primary winding of the ignition coil T1, approaching the operational value that is sufficient to meet the modern requirements of the engine. Another side effect of the rate of change of current is that secondary or reverse spark charge has more energy and a greater length than was possible previously.

In addition, as shown in Fig. 1, in the described embodiment of the invention achieves a significant improvement by replacing the switching element and controls reverse only transistor Q1 preferably represents a bipolar TRANS which may be used in existing systems capacitive or neelkantha ignition. Capacitors C1, C2 can be replaced by batteries B1, B2 to use them as means of accumulation of charge. It is necessary to adapt the battery for operation at high and low voltages, as in the embodiments of the invention shown in Fig. 1 and 2. In this embodiment, the ignition system may be used in a similar way to charge.

The invention is equally applicable to a system that includes any desired number of charging coils, means the accumulation of charge and tools division's cumulative charge.

1. The ignition system that contains many of the charging means and the many tools the accumulation of charge including first means of accumulation of charge and the second means of accumulation of charge, and at least one of charging means is designed to feed part of its charge to each of the tools mentioned accumulation of charge, and a means of sparking with a primary coil and a secondary coil connected to a spark gap, wherein at least one of the charging means is designed to feed all of its charge to one of these, the first or the second means of accumulation of charge, both tools nakopleniyu sparks, in this case, both the means of accumulation of the charge is connected with the primary coil sparking tools.

2. The ignition system on p. 1, characterized in that a lot of funds accumulation charge includes means accumulation of charge different capacity.

3. The ignition system under item 1 or 2, characterized in that at least one of the charging means is made consistent with the capacity of at least one means of accumulation of charge.

4. The ignition system on p. 3, characterized in that at least one means of accumulation of charge has a large capacity, and at least one other means of accumulation of charge has a small capacity.

5. The ignition system according to any one of paragraphs.1 to 4, characterized in that said system is made in the form of a system of capacitive ignition.

6. System according to any one of paragraphs.1 to 5, characterized in that it contains two tools accumulation of charge, and the ratio of capacitances between the two means of the accumulation of charge is from 1:20 to 1:200.

7. The ignition system according to any one of paragraphs.1 - 6, characterized in that the means of sparking provides the ignition of the fuel in the internal combustion engine.

8. The method of supplying charge GRT distribute charge from at least one of the many charging means each of the means of accumulation of charge and the distribution of the charge from at least one of the charging means to one of the many tools available to the accumulation of charge.

9. The method according to p. 8, wherein using the first and second means accumulation of charge, while the charge from at least one of the multiple charging of funds distributed to each of the above, the first and second means, charge accumulation, and the whole charge from at least one other charging distribute funds to any of these, the first or the second means of accumulation of charge.

10. The method according to p. 9, characterized in that the first and second means accumulation of charge is a means of accumulating charge different capacity.

11. The method according to p. 8, characterized in that at least one means of accumulation of charge has a large capacity, and at least one other means of accumulation of charge has a small capacity.

12. The method according to any of paragraphs. 8 to 11, characterized in that one of the means of accumulation of charge gets more charge than other means of accumulation of charge.

13. The method according to any of paragraphs. 8 to 12, characterized in that at least one of the charging means agree with a capacity of at least one of the means of accumulation of charge.

14. The method according to any of paragraphs. 8 to 13, characterized in that the specified ignition system used on

 

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