JP3534708B2 - Spark plug cable and method of adjusting spark plug cable - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates generally to initiating combustion of a mixture. In particular, the present invention relates to spark plug cables and methods for adjusting spark plug systems to maximize combustion of a mixture in an internal combustion engine.

[0002]

The purpose of an ignition system is to start the combustion of a combustible mixture by igniting it at just the right time. When spark igniting an engine, spark ignition of the engine is accomplished with an electric spark, i.e., an arc that discharges between two or more electrodes of the spark plug. The potential difference, or voltage, is high between the electrodes of the spark plug by the time the spark arcs from one electrode to another. The voltage is generated by passing a current through the center electrode of the spark plug. The spark plug cable, or ignition wire, conducts current to the spark plug from a current generating device such as a coil.

Combustion initiation in modern spark ignition engines is becoming increasingly difficult. This is because the engine design that improves fuel efficiency and reduces harmful exhaust to the atmosphere has made the conditions of mixture ignition unfavorable. Modern engines use a lean mixture that is difficult to ignite. Turbochargers and superchargers are also used to increase engine efficiency. However, the high engine combustion chamber pressure created by turbochargers and superchargers also hinders combustion. Also, the gaps or gaps between the electrodes of the spark plug are expanding, which results in a higher voltage required to generate the arc.

[0004]

The present invention solves the problem of igniting an air-fuel mixture under the difficult conditions of modern engines. Broadly speaking, the present invention provides full mixture combustion, thereby increasing engine power and reducing harmful emissions to the atmosphere.

[0005]

One embodiment of the spark plug cable fabricated by the present invention, in order to solve the problem] has one end connected to the spark plug connector, a second end other end is connected to the power connector Includes an iron core wire extending therebetween. An insulator wraps the core wire and a metal sleeve wraps at least a portion of the insulator. The metal sleeve is coupled to the ground with a removable member . The metal sleeve, the insulator and the core wire form a capacitor. The optimum capacitance value is determined by obtaining the maximum capacitance value and subtracting the safety margin.

Another method of the present invention is to connect a resistor and a capacitor to a spark plug cable, determine the charge available from the capacitor, and determine an ideal resistance value based on the available charge. The choice optimizes the duration of the spark, where the ideal resistance value allows the production of a very strong spark, which maximizes the combustion of the mixture.

However, the claims rather than the above summary of the invention define the invention.

[0008]

The essence, objects and advantages of the present invention are:
It will become more apparent to those of ordinary skill in the art after reviewing the following detailed description with reference to the accompanying drawings. The drawings are
The principles of the invention are illustrated by way of example, like reference numbers identifying like components.

It will be appreciated that some or all of the drawings are schematic representations for purposes of illustration and do not necessarily depict actual relative sizes or locations of the illustrated components.

The following paragraphs describe the invention in detail by way of example with reference to the accompanying drawings.

Overview Throughout this description, the preferred embodiments and examples shown herein should be considered as exemplars, rather than as limitations on the present invention.

The purpose of the ignition system is to produce a spark strong enough to initiate the combustion of the mixture. As shown in FIG. 1, a vehicle ignition system comprises, in part, a spark plug 12, a spark plug cable or ignition wire 1 mounted on a cylinder head 9.
0, and a current source or power supply 11 such as a coil.
The spark plug cable is connected to the spark plug by the spark plug boot 5 and to the power source by the power boot 7. An ideal ignition system would ignite all of the mixture and at the exact moment to produce maximum power. Therefore, the ignition system must be stable and accurate. The optimized ignition system produces stronger power and makes environmental pollution less harmful.

As shown in the drawings for purposes of illustration, an optimized ignition wire, or spark plug cable, made by the method of the present invention provides a method for improving mixture combustion. Spark plug cables are adjusted to provide electrical current to the spark plug in such a way that the strength and force of the spark is increased relative to conventional spark plug cables. The present invention also provides a method for maximizing the duration of a spark, or the length of time the spark lasts, by adjusting or adjusting the spark plug wire components relative to each other.

Construction A spark plug cable or ignition wire made in accordance with one method of the present invention is illustrated in FIGS. 1 and 2 and is designated generally by the numeral 10. The spark plug cable is configured to carry current from a current source or power supply 11 to the spark plug 12. The power supply is typically an ignition coil, although magnetic or other suitable devices could be used. The central element or core wire 13 carries current from the power supply 11 to the spark plug 12. The spark plug cable includes an insulator or dielectric 16 that wraps the core wire.
Also included is a conductor 20 extending along the cross section of the spark plug cable and wrapping at least a portion of the insulation. In some embodiments, protective boots 8 are used to cover the ends of the conductors and to keep the conductors securely attached to the insulation. In one embodiment, the conductor has a ground strap 21 secured to ground by a connector 22. The core wire and conductor are configured to form the electrodes of the capacitor. The current sent from the power supply 11 is stored in the capacitor,
Generates a strong spark that is washed away by the plug.

Referring to FIG. 3, one embodiment of a spark plug cable made in accordance with the present invention includes a core wire or element 13 composed of a central fiber 14, a cover 28 and a spiral wound wire 15. There is. The center fiber is made from an ultra low conductivity material with a resistance of 7,000 ohms per inch.
The central fiber can be made from a single element or it can be made from multiple filamentary elements. When using a large number of filaments, the cover 28 is used to bind the filaments together.
To use. The central fiber is wrapped by a spiral or spiral wire 15 of about 0.1 millimeter (mm) diameter having about 65 turns per inch. In this embodiment, the core wire consisting of the central fiber, cover and spiral wound wire has a resistance of about 28 ohms per inch.

An alternative embodiment of the core wire is the cover 2
It consists of a central fiber 14 having a plurality of filamentary elements bound together by 8. In this embodiment, a powdery form of ferromagnetic material is bound to the filament by a cover 28. Enclosing the cover is a spiral or spiral wire 15 having a diameter of about 0.15 millimeters (mm) having about 82 turns per inch. In this embodiment, the core wire consisting of the central fiber, ferromagnetic powder, cover and spiral wound wire has a resistance of about 14 ohms per inch. The spiral wound wire of other embodiments can have a larger or smaller diameter, which can change the overall resistance of the core wire. Another way to change the overall resistance of the core wire is to change the number of turns of spiral wound wire per inch .

Surrounding the spirally wound wire 15 is a dielectric or insulator 16. Preferred embodiments use high-purity silicon dielectrics but may be used rubber or other suitable Yuden material. As shown in FIG. 3, one particular embodiment uses two layers of dielectric separated by a woven fiberglass member 17.
The fiberglass member strengthens and supports the dielectric. The dielectric can vary in thickness from about 2.5 mm to about 5 mm. That is, the outer diameter of the dielectric is about 5 mm to about 1
It can be changed up to 0 mm.

As shown in FIGS. 2 and 3, the conductor 20
There has wrapped the induction conductive material. To form the conductor,
Any electrically conductive material can be used, such as steel, silver, copper or other suitable material. The conductor of the preferred embodiment comprises braided copper wire with tin plating. One particular embodiment conductor uses 36 gauge copper wire woven into bundles or wires 6 to form a flexible collapsible tube. The braiding lines in this particular embodiment have 2 individual filaments, each of which has 16 individual filaments.
It consists of four bundles. An alternative embodiment conductor may comprise a braided flexible tube of 36 individual bundles each having 7 individual filaments, each filament being 30 gauge wire. . Another alternative embodiment conductor comprises a braided flexible tube of 48 individual bundles each having 7 individual filaments, each filament being 32 gauge wire. You can

As shown in FIG. 3, a plurality of openings or voids 27 can be formed between the individual bundles 6. However, these openings can be minimized or eliminated by manipulating a flexible wire tube. For example, the conductive tube of the preferred embodiment has a dielectric of about 95
% Can be covered. However, an alternative embodiment conductive tube can cover about 75% to about 100% of the dielectric.

Referring to FIG. 2, the bundle 6 forming the tubular conductor 20 can be folded such that one end of the conductor 20 forms a flexible, substantially flat ground strap 21. The ground strap is a spark plug cable 1
Formed when 0 is assembled. One opening 27 between the bundles forming the conductor is enlarged so that the insulator 16 and the core wire 13 can be passed therethrough. In one embodiment, the ground strap 21 terminates in a connector 22 consisting of an annular or wire terminal 42 for securely connecting to ground by a suitable fastener such as an engine block.

A spark plug cable made with a flexible conductor 20 according to the present invention can be formed by bending or compressing the flexible conductor into any required configuration.
Can be packaged. Prior art capacitive spark plug cables using rigid capacitors have limited applications due to the limitations of packaging rigid cylindrical objects.

Operation and Adjustment FIG. 4 is a schematic circuit diagram of one embodiment of an adjusted or optimized spark plug cable made by the method of the present invention. The conductor 20 is a power source 11 such as a coil.
And the central electrode 23 of the spark plug 12 are provided. The ground strap 21 preferably connects the conductor to a ground 26 provided on the engine. In one embodiment, the core wire 13 is configured to have a resistance 25 of about 28 ohms per inch. One principle of operation of a spark plug cable made in accordance with the present invention is that the ground strap of the capacitor formed by the conductor, insulator 16 and core wire when current flows from the power source through the core wire. It means that you will be invited to 21. The core wire 13 and the conductor 20 serve as capacitor electrodes separated by an insulator. The capacitor stores the energy delivered by the coil until it reaches its capacitance. The final amount of energy delivered by the coil passes through the capacitor and creates a sufficient voltage between spark plug electrode 23 and spark plug electrode 24 to create the spark. The capacitor then discharges and sends all of its stored energy to the spark plug at once, creating a strong spark.

Prior art spark plug cables without capacitors only transfer the energy of the coil to the spark plug. However, the coil cannot deliver the required energy in a short time, and it takes time to generate the required energy. This results in a spark length or time of approximately 2/1000 to 1000 seconds.
It is too long, which is 4 seconds (0.002 to 0.004 seconds). Since the strength = work load / hour, a long spark duration reduces the spark strength. Therefore, the strength of the spark can be increased by shortening the duration of the spark. The stronger spark uses a lean mixture and improves the performance of modern engines with high combustion chamber temperatures and pressures.

The ignition of the air-fuel mixture was irregular or inconsistent because the prior art devices deliver the energy of the stored capacitor in a time that is too short and the duration of the spark is too short. Alternatively, because the size of the capacitors was generally limited by space constraints, the capacitance was too small to show any improvement in ignition of the mixture.

The capacitors on the spark plug cables were often too large and the capacitors stored all of the energy delivered by the coil. In this situation, no spark is created to initiate the combustion of the mixture.

The spark plug cable constructed by the method of the present invention has a spark duration in the range of 40 to 1000 nanoseconds. Therefore, the strength of the spark is greatly increased, ensuring complete combustion even under unfavorable conditions. Also, the spark plug cable capacitors are carefully sized so that the capacitors are fully charged, yet sufficient energy is produced at the central electrode 23 to create a spark. That is, it is adjusted according to the coil. Also,
The resistance of the core wire 13 must be optimized so that the duration of the spark is in the desired range to initiate combustion. Spark plug that works as above
Cables must be carefully adjusted and manufactured.

FIG. 5 shows a method of adjusting the spark plug cable 10 having the optimum capacitance value. The method of the present invention is used to make a spark plug cable that can be used in any device that requires spark ignition of a combustible fuel, such as a two stroke engine, a four stroke engine and other fuel combustion devices. You can

The first step 30 is to determine the available current. This is accomplished by examining the power supply and determining its output. A conventional power supply will receive about 20,0 volts (V) from a conventional battery.
It uses an ignition coil that amplifies to 00V. Alternative power sources can supply 6, 24, 36 or 42 volts to the ignition coil. Further, the voltage can be in the range of 5,000V to 80,000V or more, depending on the coil characteristics.

The next step 31 is to select the optimum capacitance value. The capacitor must be sized to be fully charged, yet allow sufficient energy or current to pass through the spark plug to produce a spark. If the capacitance of the capacitor is too large, no spark will form and combustion of the mixture will not occur. Conversely, if the capacitance of the capacitor is too small, the intensity of the spark will not change and there will be no improvement to ignition of the mixture. The capacitor having the optimum capacitance value is determined by obtaining the maximum capacitance value and subtracting the safety margin.

For example, different spark plug cables can be made to exhibit different capacitance values as shown in Table 1 below.

[0031]

[Table 1]

Then, different spark plug cables can be tested with coils having different output voltages. The optimum capacitance value will vary based on the size of the coils used in the ignition system. For example, in the three tests below, 4
10,000 Volts (40kV), 60kV and 70k
Three different coils with V output require three different spark plug cable capacitors.

As shown in the above test results, in order to achieve the optimum spark, the spark plug
The capacitance value of the cable must be increased as the voltage output of the coil increases. The optimum capacitance value for each ignition system is determined by determining the maximum capacitance value and subtracting the safety margin. The maximum capacitance value causes intermittent or sporadic sparks at the spark plug, or no spark at all,
This is the capacitance value of the spark plug cable. For example, in Test 1, the maximum capacitance value is
It is 3 3 pF obtained with the plug cable 3. In Test 2, the maximum capacitance value is 63 pF obtained with the spark plug cable 5. Further, in Test 3, the maximum capacitance value is 95 pF obtained by the spark plug cable 7.

In a spark plug under virtually all conditions, a small safety margin is subtracted from the maximum capacitance value to ensure an optimum capacitance value to ensure that a spark is produced. obtain. It has been found that a capacitance reduction of about 10 to 15 pF is a sufficient safety margin. This is due to changes in manufacturers, poor quality power supplies,
Allows transient ignition system conditions and other effects.

Once a small safety margin has been subtracted from the maximum capacitance value, the optimum capacitance value is determined.
In Test 1, the optimum capacitance value is 18 pF obtained by the cable 2. In Test 2, the optimum capacitance value is 48 pF obtained in the cable 4, and in Test 3, the optimum capacitance value is 74 pF also found in the cable 6.

Therefore, the optimum capacitance value for a particular ignition system can be determined and the spark plug cable can be manufactured accordingly. A method of manufacturing a spark plug cable according to the present invention is
By tailoring the spark plug cable to the specific ignition system requirements, it allows the optimum spark to be produced.

As shown in FIG. 5, the spark plug
Next Steps 32 in Adjusting Cable 10
Is to adjust the capacitance of the capacitor to match the optimum capacitance value. One way to adjust the capacitance of a capacitor is to change its surface area. Therefore, one adjustment method is to simply adjust the length 18 of the conductor 20 to achieve the desired capacitance value, as shown in FIG. This length can vary from about 5 to 40 inches.

One advantage of the present invention is that the conductor 20 is constructed of a flexible braided wire tube so that the spaces 27 present between the braid bundles 6 are opened and closed, as shown in FIG. By doing so, the surface area of the conductor can be increased or decreased. For example, a motorcycle with a high voltage coil that requires a large capacitance will only incorporate a short spark plug cable. The conductors can be compressed to eliminate the space between the bundles of wires, thereby increasing their surface area and the capacitance of the spark plug cable.

Another way to determine the size of the capacitor is
It is to increase the surface area of the spirally wound wire 15 wound around the central fiber 14 of the core wire 13. Surface area can be increased by increasing the number of turns per inch. This increases the surface area of the core wire and thereby increases the capacitance of the capacitor. However, this also increases the resistance of the core wire. This advantageous feature is described in detail below.

Since the capacitance can be adjusted also by changing the distance between the capacitor electrodes, another method of determining the size of the capacitor, that is, adjusting the capacitor, is as shown in FIG. Widening the gap 19 between the conductor 13 and the conductor 20. This is the dielectric 16
Can be achieved by changing the thickness of the. The preferred embodiment dielectric has an outline of about 8 millimeters and a spacing of 19
Is about 4 mm. However, larger or smaller dielectric diameters could be employed depending on the requirements of the capacitor.

As shown in FIG. 5, once the size of the capacitor has been optimized, the spark plug cable 1
The next step 33 in adjusting the zero is to determine the ideal spark length or time.
Since strength = work / hour, a long spark duration weakens the strength of the spark. Therefore, the strength of the spark can be increased by shortening the duration of the spark. A conventional ignition system has a spark duration of about 1/2000 to 1/4000 second (0.
It is between 002 and 0.004 seconds) and is too long. Prior art devices have too short a time to deliver energy to produce a spark, which reduces the duration of the spark, causing the mixture to be ignited irregularly or not at all. Alternatively, if an insufficient amount of energy is delivered, the spark strength will not increase. Spark plug cables constructed by the method of the present invention have a spark duration in the range of 40 to 1000 nanoseconds. Therefore, the intensity of the spark is significantly increased, ensuring complete combustion even under unfavorable conditions.

Referring again to FIG. 5, once the correct spark duration is determined, the next step 34 in adjusting spark plug cable 10 is:
Choosing an ideal resistor. Method 1 of the present invention
One unique aspect is that the resistance of the core wire 13 is adjusted to optimize or adjust the duration of the spark. Greater resistance increases the duration of the spark, and conversely smaller resistance decreases the duration of the spark. The preferred embodiment spark plug cable 10 has a spark duration of approximately 300 nanoseconds. However, the duration of the spark may range from about 40 to about 1000 nanoseconds, depending on the requirements of the ignition system.

An important factor in selecting an ideal resistance is the characteristics of the capacitor. Prior art capacitors that employ a rigid barrel-type structure abruptly "empty" their stored energy, producing a spark of very short duration. A spark duration that is too short will not ignite the mixture. Conversely, a spark duration that is too long does not increase the strength of the spark and therefore has no beneficial effect. One advantage of the present invention is that the conductor 20, which comprises a braided wire tube, can be configured to control the release of its stored energy, thereby producing a spark of any specified duration. This is accomplished by using different wire braid configurations, each with its own discharge characteristics. For example, a conductor composed of a wire braid consisting of 24 bundles, each with 16 individual 36 gauge copper wire filaments, would consist of 48 bundles each with 7 individual 32 gauge copper wire filaments. Will have different discharge characteristics than a conductor constructed from a different wire braid.

All of the factors such as the capacitance of the capacitor, the discharge characteristics of the capacitor, and the resistance between the capacitor and the spark plug affect the duration of the spark, so by examining all of these factors, the ideal Select the appropriate resistance.

As shown in FIG. 5, the next step 35
Adjusts the resistance of the spark plug cable 10 to approach the ideal resistance. As shown in FIG. 2, the resulting resistance is the resistance produced by the length 29 of the core wire 13. Length 29 is
The length between the spark plug 12 and the end of the conductor 20. This is the resistance that the capacitor must overcome in order to deliver its stored energy to the spark plug.

One way to adjust the resistance is to increase the number of spiral windings 15 per inch on the core wire 13 as shown in FIG. The core wire of the preferred embodiment has a resistance of about 28 ohms per inch. However, this resistance can increase or decrease depending on the ignition system requirements. An alternative method is to increase the length 29 and thereby spark plug 12 and conductor 20.
It is to increase the total resistance between the end and.

An important feature of the spiral wound wire 15 is that it minimizes electromagnetic interference (EMI) produced by the electrical energy delivered to the spark plug. EM
I can be in the form of unwanted high frequency electrical signals, also known as radio frequency interference (RFI). Modern engine electronics are very susceptible to EMI. Some ignition systems employing high voltage coils can produce excessive and damaging amounts of EMI. EMI
Is generated by an electric current that passes through the core wire and creates a magnetic field.

As shown in FIG. 6, the magnetic field 40 is generated according to the law of the right hand, and when the direction of the current 41 is pointed by the thumb of the right hand, the other finger bends to show the direction of the magnetic field. However, one advantage of the present invention is that the substantially parallel spiral wound wires 15 emit magnetic field energy towards each other, thereby substantially canceling each other out to minimize EMI. Thus, the present invention is compatible with virtually any engine management system, including systems that are susceptible to EMI and RFI.

Another method for minimizing or eliminating EMI is to use a ferromagnetic material for the core wire 13.
Ferromagnetic materials containing iron are the
I can be absorbed or reduced. As described above, the embodiment of the present invention uses the core wire including the ferromagnetic material. This core wire carries a very high current,
Ferromagnetic materials absorb any EMI generated.

Other Embodiments Certain preferred embodiments have been described above. It is to be understood that modifications and replacements are intended to be within the scope of the foregoing description, and that such modifications and replacements are within the literal scope of the claims or are equivalent thereto.

Accordingly, it is appropriate that the scope of the claims be construed broadly and consistent with the spirit and scope of the invention described herein.

[Brief description of drawings]

1 is an elevational view of one embodiment of the present invention in the form of a spark plug cable.

FIG. 2 is a partial cross-sectional elevational view of a spark plug cable made by the method of the present invention.

3 is an elevational view of a portion of the embodiment of FIG. 2 showing certain components of the spark plug cable.

FIG. 4 is a schematic circuit diagram showing ignition system components and spark plug cables made by the method of the present invention.

FIG. 5 is a flow chart illustrating a method of optimizing a spark plug cable according to the present invention.

FIG. 6 is an elevational view showing the direction of current and magnetic fields produced by the components of a spark plug cable according to the present invention.

[Explanation of symbols]

5 spark plug boots 6 thin lines (bundle) 7 power boots 8 protective boots 9 cylinder head 10 Spark plug cable (ignition line) 11 power supply 12 spark plugs 13 Iron core wire 14 Central fiber 15 spiral wound wire 16 Dielectric (insulator) 17 Knitted fiberglass member 18 conductor length 19 Distance between core wire and conductor 20 conductors 21 Ground strap 22 connector 23 Central electrode 24 spark plug electrodes 25 resistance 26 Ground 27 openings (voids) 28 cover 29 Length of core wire 40 magnetic field 41 Current 42 Annular terminal (wire terminal)

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Wolf Allens United States 92131 San Diego Forest View Lane 11305 (56) References JP-A-62-208584 (JP, A) JP-A-7-83153 (JP, A) ) JP-A-10-92230 (JP, A) JP-A-4-116268 (JP, A) JP-A-11-324880 (JP, A) Actually open 4-97327 (JP, U) Actually open 60- 47881 (JP, U) JP-B 38-19854 (JP, B1) (58) Fields investigated (Int.Cl. ⁷ , DB name) F02P 15/00 H01T 13/05

Claims (15)

(57) [Claims] 1. An iron core wire, one end of which is connected to a power connector and the other end thereof is connected to a spark plug connector, and which is wrapped by a spirally wound wire; and an insulator that encloses substantially all of the iron core wire. A spark plug cable including a member removably coupled to the ground, the conductor including at least a part of the insulator, and forming a capacitor having the core wire and the conductor as a capacitor electrode. , The spark plug cable having an optimum capacitance value, wherein the capacitor is determined by subtracting a safety margin from the maximum capacitance value. 2. The spark plug cable of claim 1, wherein the core wire has a length of between about 7 inches and 40 inches. 3. The spark plug cable of claim 1, wherein the conductor is flexible. 4. The spark plug cable of claim 1, wherein the core wire is configured to minimize electromagnetic interference. 5. The optimum capacitance value is adjusted by the spiral.
Performed by selectively increasing or decreasing the surface area of the wound wire
The spark plug cable according to claim 1, wherein the spark plug cable is provided. 6. The optimum capacitance value is adjusted by the spiral.
To selectively increase or decrease the distance between the winding wires
Spark plug according to claim 1, wherein
cable. 7. The optimum adjustment of the capacitance value is performed by the insulation.
Selectively lengthen the conductor that wraps at least part of the body
The method according to claim 1, which is performed by shortening or the like.
Spark plug cable. 8. The conductor is a conductive material, copper, tin, brass or the like.
And groups of steel and copper, tin, brass and
Selected from any combination of steel and steel
The spark according to claim 1, which is made of a material
Plug cable. 9. One end is connected to a power connector and the other end is a switch.
Spiral-wound wire connected to park plug connector
An insulating core that encloses almost all of the core wire and a member that is detachably connected to the ground.
A conductor that encloses at least a part of the body, a core that uses the core wire and the conductor as a capacitor
Forming a capacitor, optimum spark plug cable comprising said capacitor
A method of determining the amount of current available from the power supply and subtracting a safety margin from the maximum capacitance value.
To select the optimum capacitance value for the capacitor.
And the capacitance to approximate the optimum capacitance value.
Spark consisting of steps to adjust the capacitance value of the
・ How to optimize plug cables. 10. The capacitance value of the capacitor is adjusted.
The step is a capacitor electrode that constitutes the capacitor.
Charge stored in the capacitor by increasing or decreasing the distance between
10. The method according to claim 9, which comprises decreasing or increasing
How to optimize your spark plug cable. 11. The capacitance value of the capacitor is adjusted.
The step is to reduce the number of insulators
The length of the conductor that partially wraps around is selectively lengthened or shortened.
The spark plug according to claim 9, which comprises:
How to optimize lug cables. 12. The capacitance value of the capacitor is adjusted.
The step includes a plurality of steps provided between the plurality of strands of the conductor.
10. The method of claim 9, comprising selectively increasing or decreasing the opening of
How to optimize your spark plug cable. 13. One end is connected to a power connector and the other end is
Connected to spark plug connector, spiral wound wire
The core including the iron core wire wrapped by a wire, an insulator that covers almost all of the core wire, and a member detachably connected to the ground.
A conductor that encloses at least a part of the body, and a core that uses the core wire and the conductor as a capacitor electrode.
Spark forming a capacitor and including the resistance of the capacitor and the core wire
A method of optimizing a plug cable, comprising determining the amount of current available from the power supply and subtracting a safety margin from the maximum capacitance value
To select the optimum capacitance value for the capacitor.
And the capacitance to approximate the optimum capacitance value.
To adjust the capacitance value of the sensor , to determine the ideal spark duration, and to determine the ideal spark duration.
A spark consisting of the steps of adjusting the resistance value of the resistor.
・ How to optimize plug cables. 14. A step of adjusting a resistance value of the resistor.
The method comprises changing the length of the core wire.
Optimize the spark plug cable described in 13
Method. 15. Determining the duration of the ideal spark
The step of changing the duration from 40 nanoseconds to about 10
14. Setting to a range of 00 nanoseconds.
Those who optimize the spark plug cable described in
Law.