Application of Silicone in Spark Plug Wire
The reason for using silicone as insulation for spark plug wire cable is its durability, resistance and strength against destructive factors inside the car engine, such as high engine heat, leakage of various oils, antifreeze in the engine compartment. It can be said that silicone is almost resistant to all these factors and increases the life of the spark plug wire cable.
Advantages of Silicone Spark Plug Wire
- No interference of EMI and RFI in the performance of car ECU
- Resistance to high and low temperatures
- Mechanical resistance
- Optimal electrical current conduction
Features of Silicone Spark Plug Wire
- Low resistance to electric current
- Protective layers against moisture, dust, oil and wear
- High flexibility and bendability
- Long life and minimal need for replacement
Structure of Silicone Spark Plug Wire
- Caps for connecting to spark plugs and coils
- Connection sockets
- Spark plug wire
Types of Silicone Spark Plug Wire
Silicone spark plug wire is generally divided into three categories:
Stringed Spark Plug Wire
The conductor in this wire is steel or copper type. Due to the use of this conductive material, noise and interference occur in the transmission of electricity. These interferences have a direct impact on the performance and the way the car’s ECU works. Therefore, the use of this type of spark plug wire is obsolete.
Silk Spark Plug Wire
This type of spark plug wires, which have been used the most until today, are used in all types of injection and carburetor cars due to their good flexibility and high resistance. To transmit electricity in this type of spark plug wires, several threads similar to silk, which are impregnated with graphite, are used. And they do not have any noise and jamming. But the big disadvantage of this type of cables is that the current with the right voltage does not reach the spark plug of the car, and as a result, it reduces the efficiency of the engine and, as a result, increases the car’s fuel consumption.
Coiled spark plug wire
At present, the best, most widely used and most efficient type of car spark plug wire cable is the bobbin type. This type of cable has conductivity such as nickel-chromium alloy, which is wound around the core as an inductor, and the low resistance of the conductor of this type of cable increases the speed of electric current transmission to the spark plug, and does not affect the performance of the car’s ECU in several stages of jamming and noise reduction.
Structure of Coiled Spark plug wire
Fiberglass woven texture
Silicone insulation
Nickel chrome coil
Core of fiberglass or aramid fibers
Ferrite Coating
Silicone insulation
Silicone-insulating layer
.
Core of fiberglass or aramid fibers
The innermost part of the cable is the pile wire, and its main function is to reduce interference. And in addition, it also causes the mechanical strength of the cable.
Ferrite coating
It is used as a fiber coating and prevents noise.
Nickel chrome coil (nichrome)
The electric current is carried out by this layer of the cable, which is in the form of an inductor, and it is also the conductive part of the cable.
Silicone insulation
This layer comes as a cover on the cable conductor and while helping to reduce jamming and noise, it also prevents the wastage of electrical energy. In addition, this part is also responsible for protecting the conductive layer of the wire against destructive factors and makes the cable stronger.
Fiberglass woven texture
This layer, while maintaining full elasticity, makes the cable strong and connects the middle silicon layer to the outer silicon layer.
The final silicone layer (protective insulation)
It is the outermost layer of the cable and keeps the inner layer together in a coherent way, and its function is to protect the inner layers against heat and contact with oil.
