WO2021103855A1

WO2021103855A1 - Structure for enhancing ignition strength, ignition enhancement apparatus and ignition system

Info

Publication number: WO2021103855A1
Application number: PCT/CN2020/122246
Authority: WO
Inventors: 关哲
Original assignee: 关哲
Priority date: 2019-11-26
Filing date: 2020-10-20
Publication date: 2021-06-03
Also published as: CN211017742U; JP3240093U

Abstract

Provided is a structure for enhancing ignition strength, comprising an input end used for connecting a high-voltage circuit (1) and an output end used for connecting a clearance-type ignition apparatus (18); and a second discharge clearance (3) is provided between the input end and the output end. The structure performs a jump spark process on a current, which may generate a burst-shaped group of sparks in the clearance-type ignition apparatus, and the energy carried and released by the group of sparks clearly has a greater intensity and wider range than linear sparks, such that the ignition effect is enhanced in terms of speed and strength. Additionally, further provided are an ignition enhancement apparatus and an ignition system that use the foregoing structure.

Description

Structure for enhancing ignition intensity, enhanced ignition device and ignition system

Technical field

The utility model relates to the technical field of electric spark ignition, in particular to a structure for enhancing ignition intensity, an enhanced ignition device and an ignition system.

Background technique

In today's ignition equipment, devices that use electric sparks to achieve ignition are very common, especially for applications that ignite combustible gases, most of which use electric spark ignition equipment. The existing electric spark ignition equipment basically completes the work by setting a discharge gap between a high-voltage line and a low-voltage line (or a low-voltage line formed by grounding or grounding), so that an electric spark is formed between the discharge gap. Since it excites the electric spark to ignite through the above-mentioned discharge gap (that is, the first discharge gap 5 described in the present invention), it is called a gap type ignition device 18.

However, the electric spark formed in this way is only a small arc, and because it is a thin wire, it is called a linear spark here. Although linear sparks have the ability to ignite combustible gas, in some occasions that require high speed and intensity of the ignition process, such as when used in engines, linear sparks only have a very small contact area with combustible gas. The linear spark itself carries and transfers less energy, so that the oil-gas mixture can only obtain very weak ignition energy, and it can only diffusely burn around the ignition place, so that the energy released by the combustion is slowly released, so The piston thrust is weakened and the piston's overall force and work are reduced, and the energy conversion efficiency of the engine is reduced; and the mixture will often produce insufficient combustion. Especially for high-speed engines, the engine needs to run dozens of or more per second. At hundreds of revolutions, the four processes of engine suction, pressure, explosion, and exhaust need to be completed in a very short time. The mixed gas is often discharged before it is fully burned, causing serious carbon deposits in the cylinder and engine exhaust pipe, including those directly. The carbon dust or carbon monoxide that is discharged into the atmosphere is actually fuel that should be burned. The wasted chemical energy and the carbon deposits deposited in the engine that hinder the normal operation of the engine further reduce the overall efficiency of the engine.

Utility model content

The technical problem to be solved by the utility model is to provide a structure that can enhance the ignition intensity of the equipment compared with the original linear spark ignition mode, and an enhanced ignition device and an ignition system using the structure.

In order to solve the above technical problems, the technical solution of the present invention is: a structure for enhancing ignition intensity, including an input end for connecting a high-voltage line and an output end for connecting a gap type ignition device; the input end and the There is a second discharge gap between the output terminals.

Further: the input end is connected with a high-voltage pole, and the output end is connected with a low-voltage pole; the high-voltage pole and the low-voltage pole have sharp ends.

Further: the second discharge gap is sealed in the isolation chamber.

An enhanced ignition device includes the aforementioned structure for enhancing ignition intensity.

Further: comprising a device main body and a spacer device connected in series with the device main body, the spacer device having the aforementioned structure for enhancing ignition intensity; the device main body is an ignition coil, a distributor or a spark plug.

Further: the main body of the device is a spark plug, the spark plug includes an elongated center electrode, the upper end of the center electrode has a terminal A, the center electrode is axially sheathed with a layer of insulator, and a metal seat is sheathed outside the insulator The bottom end of the metal seat protrudes from the side electrode, and a first discharge gap is provided between the side electrode and the bottom end of the center electrode; a second discharge gap is provided on the center electrode.

Further: the second discharge gap is set to 5-12 mm.

Further: an insulating sleeve is included. One end of the insulating sleeve is provided with a terminal B for connecting to a high-voltage line, and the other end of the insulating sleeve has an opening into which the existing terminal of the existing spark plug is inserted, and the enhanced ignition After the device is installed, there is a second discharge gap between the terminal B and the existing terminal.

Further: the terminal B has the same shape as the existing terminal.

An ignition system includes the aforementioned enhanced ignition device.

By adopting the above technical solution, the technical effect of the present invention is to provide a structure that can enhance the ignition intensity of the equipment compared with the original linear spark ignition method. This structure forms a flashover treatment on the current and can make the gap type ignition device A burst-shaped cluster spark is produced in it, and the energy carried and released by the cluster spark is obviously stronger and wider than the linear spark, so that the ignition effect is enhanced in terms of speed and intensity. Especially after it is applied to the engine, it can increase the engine output torque, save fuel and reduce harmful exhaust gas emissions, because it can promote the fuel to burn fully and quickly. It can also solve the problem of engine carbon deposits, prolong the service life of the engine, and improve the efficiency of the whole engine. The enhanced ignition device and ignition system using the above mechanism also have the above technical effects.

Description of the drawings

Figure 1 is a schematic diagram of the circuit of the utility model;

Figure 2 is a schematic structural diagram of a spark plug of the present invention;

Figure 3 is a schematic diagram of the structure of an enhanced ignition device of the present invention after installation;

Among them, 1-high voltage line, 2-isolation chamber, 3-second discharge gap, 4-intermediate line, 5-first discharge gap, 6-combustion chamber, 7-low voltage line, 8-terminal A, 9-insulator, 10-center electrode, 11-metal seat, 12-side electrode, 13-insulating sleeve, 14-terminal B, 15-high voltage pole, 16-low voltage pole, 17-spacer device, 18-gap ignition device, 19- Existing terminals.

Detailed ways

As shown in the circuit schematic diagram of Fig. 1, compared with the original electric spark ignition equipment, the main innovation of the present invention is the addition of a second discharge gap 3. The circuit structure of the original electric spark ignition equipment can be simplified as a first discharge gap 5 (including the case where there are several first discharge gaps 5 connected in parallel) between the high-voltage line 1 and the low-voltage line 7. In the present invention, a second discharge gap 3 connected in series is added between the first discharge gap 5 and the high-voltage line 1. The specific structure is: the two discharge electrodes forming the second discharge gap 3 are high-voltage electrodes 15 and low-voltage electrodes, respectively. The high-voltage pole 16 is connected to the high-voltage line 1, the low-voltage pole 16 is connected to a discharge electrode having a first discharge gap 5 through the intermediate line 4, and the other discharge electrode of the first discharge gap 5 is connected to the low-voltage line 7.

After this setting, a double-gap ignition system with two series-connected discharge gaps can finally be formed. In the ignition system with the above-mentioned structure, the first discharge gap 5 is still used for ignition, and the main function of the second discharge gap 3 is "flashover", that is, when the ignition discharges, the current skips a discharge gap first. A normal linear spark is formed, but the current after “flashover” will form a burst-shaped cluster spark when it encounters the second discharge gap, that is to say, the first discharge gap 5 described above. Cluster sparks and linear sparks can be roughly analogous to lightning in nature. They can be divided into elongated branch lightning and ball lightning. According to experimental observations, cluster sparks carry and release energy that is significantly stronger than linear sparks. ,wide range. The inventor used a spark plug test of an automobile. The spark plug with only a single first discharge gap 5 can only emit a 2mm long and silent arc (ie linear spark) when ignited, and a second discharge gap is added outside the spark plug. After 3, the original spark plug can release a cluster-shaped spark with a diameter of about ten millimeters and a large bursting sound. According to preliminary calculations, the energy released by the electric spark has increased from the original 50-100mJ to about 1000mJ. Therefore, the ignition energy obtained by the mixture in the engine cylinder is doubled, and because the cluster spark has a larger contact range between the linear spark and the mixture, the mixture can be burned in a wide range and quickly, and the combustion is better. Very full. After the inventor’s long-term test, the vehicle with the second discharge gap 3, under the original conditions unchanged, the vehicle power is significantly increased, and the fuel consumption is reduced by about 10% to 15%, especially after the engine runs for a long time, the cylinder head is removed Later, where black carbon deposits usually accumulate severely, only a very thin layer of off-white material is seen, indicating that the fuel has been fully burned and no incompletely combusted carbon deposits are formed, so that the chemical energy of the fuel can be fully released, reducing fuel consumption and reducing fuel consumption. Improving the conversion efficiency of the engine conforms to the current general trend of energy saving and emission reduction; and due to the solution of the problem of carbon deposits, the engine also reduces the failure rate, prolongs the overhaul time, and is more durable.

It should be pointed out that the above-mentioned double-gap ignition system can be used not only on engines, but also in other places where linear sparks were used for ignition, such as gas stoves, to enhance the ignition effect. It is a preferred embodiment of the present invention to implement it on the engine.

Since the utility model mainly uses the cluster-shaped sparks generated at the first discharge gap 5 for ignition, in order to prevent the sparks at the second discharge gap 3 from also igniting the object to be burned and affecting the ignition effect, it is preferable to combine the first discharge gap 5 with the first discharge gap 5 The two discharge gaps 3 are isolated, for example, only the first discharge gap 5 is wrapped in the combustion chamber 6 (for example, an engine cylinder chamber); or when used to ignite combustibles in an open space, the first discharge gap 5 Enclosed in the isolation room 2.

In addition, in order to facilitate the formation of an electric arc for "flashover", the high-voltage pole 15 and the low-voltage pole 16 may have sharp points.

In addition, the outstanding feature of the present invention is that the gap type ignition device 18 with only the first discharge gap 5 in the original ignition system can be used, and the corresponding position in the ignition system in series only contains the gap of the second discharge gap 3. The device 17 is sufficient, and the spacer device 17 is used as an enhanced ignition device, instead of having to replace the original ignition system with an ignition device with a double gap. Therefore, this is very beneficial to the modification of the existing old equipment, and only a small amount of cost is needed to add a spacer 17 containing the second discharge gap 3 anywhere in the high-voltage line 1 of the original ignition system. Especially for the existing fuel vehicles, it has the characteristics of low investment cost, high energy saving and emission reduction effect, and simple and easy upgrade and transformation.

However, it should be pointed out that for automobile engines, the spacer device 17 can be a single newly added component in the high-voltage line 1, or it can be integrated with ignition system components such as ignition coils and distributors to match the existing spark plugs ( That is, it is equivalent to the use of the gap type ignition device 18), and the spacer device 17 can also be integrated with the existing spark plug to form an integrated enhanced ignition device.

According to the inventor's years of practical experience, it is preferable to integrate the spacer device 17 with the existing spark plug. Such a solution has a simple structure and good effect. The following introduces a specific embodiment of a new type of spark plug.

As shown in Fig. 2, the spark plug of the present invention is basically the same as the existing spark plugs. Both have an elongated center electrode 10. The upper end of the center electrode 10 has a terminal A8, and a layer of insulator 9 is axially sleeved on the center electrode 10. The insulator 9 is covered with a metal seat 11 with external threads. The bottom end of the metal seat 11 is provided with a side electrode 12, and there is a first discharge gap 5 between the side electrode 12 and the bottom end of the center electrode 10; when in use, the terminal A8 Connected to the high-voltage line 1, the metal seat 11 is threadedly connected to the engine block (or grounded) to form a low-voltage line 7. The difference between this spark plug and the existing spark plug is that a second discharge gap 3 is provided on the center electrode 10, so that the center electrode 10 is divided into two sections. The two ends forming the second discharge gap 3 are preferably pointed ends to facilitate discharge.

According to the conclusion of practical experience, when other conditions remain unchanged, the greater the distance of the second discharge gap 3, the larger the diameter of the cluster-shaped spark formed in the first discharge gap 5 and the higher the energy release intensity, but the overall ignition of the device The longer the time, that is, the longer the total time to complete the two stages of spark ignition. When applied to an engine, especially a high-speed engine, an excessively long ignition time may cause poor ignition of the engine (or drag cylinder). Therefore, the distance of the second discharge gap 3 needs to be appropriately limited. According to the inventor’s many years of practical experience, the second discharge gap 3 is preferably 5-12mm. When the second discharge gap 3 is at 5mm, sufficient cluster sparks can be formed at the first discharge gap 5, despite the diameter of the cluster sparks. It is relatively small, but it also has enough to enhance the ignition effect. In addition, because of its short ignition time, it can be applied to various engines without causing the problem of cylinder drag. When the second discharge gap 3 is 12mm, the cylinder The inner cluster sparks will be very strong and achieve a very good enhanced ignition effect. In addition, although its ignition time is relatively long, it can still meet the requirements of most engines at high speeds, and basically will not cause the problem of cylinder drag.

The above is a new type of spark plug, but in order to facilitate the modification of existing equipment, the inventor further proposes an enhanced ignition device that modifies the existing spark plug. As shown in FIG. 3, the lower part is an existing spark plug with a communicating center electrode 10, and the upper end of the center electrode 10 is an existing terminal 19. The enhanced ignition device is installed on the upper part of the existing spark plug. It has an insulating sleeve 13. One end of the insulating sleeve 13 is provided with a terminal B14 for connecting the high-voltage line 1, and the other end of the insulating sleeve 13 connects the existing terminal 19 is sleeved, and after installation, there is a second discharge gap 3 between the terminal B14 and the existing terminal 19, and the second discharge gap 3 is preferably set to 5-12 mm. One of the outstanding features of the device is that the existing terminal 19 of the existing spark plug is used as one of the discharge electrodes of the second discharge gap 3, which saves material. The opening on the insulating sleeve 13 into which the existing terminal 19 is inserted is equivalent to the output end of the device. Obviously, if the output end and the input end of the device can be connected and fixed to the existing device so as to become the discharge electrode forming the second discharge gap 3, the effect of saving material is better and the structure is relatively simpler. Although the device can also be made into an open exposed structure, it is preferable to seal the second discharge gap 3 in a closed space such as an insulating sleeve 13 (that is, equivalent to the isolation chamber 2) to prevent open flames from igniting other objects. In addition, the terminal B14 can be made into the same shape as the existing terminal 19, which can facilitate the installation of the original circuit without changing the connection head of the original circuit.

After applying the above-mentioned enhanced ignition device to a car engine, after long-term tests by the inventor, the vehicle not only has increased power, fuel-saving and reduced emissions, but also has no other abnormalities in the engine after long-term operation. On the contrary, the elimination of carbon deposits prolongs the engine overhaul cycle. And the failure rate of the ignition system also has a downward trend. Therefore, it conforms to the general trend of national energy saving and emission reduction, has great promotion value, and has great market prospects.

Claims

A structure for enhancing ignition intensity, characterized in that it comprises an input terminal for connecting a high-voltage line (1) and an output terminal for connecting a gap type ignition device (18); between the input terminal and the output terminal There is a second discharge gap (3).
The structure for enhancing ignition intensity according to claim 1, characterized in that: the input end is connected with a high voltage pole (15), the output end is connected with a low voltage pole (16); the high voltage pole (15) And the low-pressure pole (16) has a sharp point.
The structure for enhancing ignition intensity according to claim 1, wherein the second discharge gap (3) is sealed in the isolation chamber (2).
An enhanced ignition device, characterized in that it comprises the structure for enhancing the ignition intensity of any one of claims 1 to 3.
An enhanced ignition device according to claim 4, characterized in that it comprises a device main body and a spacer device (17) connected in series with the device main body, the spacer device (17) having any one of claims 1 to 3 A structure that enhances the ignition intensity; the main body of the device is an ignition coil, a distributor or a spark plug.
An enhanced ignition device according to claim 5, characterized in that the main body of the device is a spark plug, the spark plug includes an elongated center electrode (10), and the upper end of the center electrode (10) has a terminal A (8), the central electrode (10) is axially sleeved with an insulator (9), and a metal seat (11) is sleeved outside the insulator (9), and the bottom end of the metal seat (11) protrudes from the side electrode (12) A first discharge gap (5) is provided between the side electrode (12) and the bottom end of the center electrode (10); a second discharge gap (3) is provided on the center electrode (10).
An enhanced ignition device according to claim 6, characterized in that the second discharge gap (3) is set to 5-12 mm.
The reinforced ignition device according to claim 4, characterized in that it comprises an insulating sleeve (13), one end of the insulating sleeve (13) is provided with a terminal B (14) for connecting a high-voltage line (1) , The other end of the insulating sleeve (13) has an opening for inserting the existing terminal (19) of the existing spark plug. After the enhanced ignition device is installed, the terminal B (14) and the existing terminal (19) There is a second discharge gap (3).
The enhanced ignition device according to claim 8, wherein the terminal B (14) has the same shape as the existing terminal (19).
An ignition system, characterized in that it comprises an enhanced ignition device according to any one of claims 4-9.