Power Equipment
's team turned on the air-fuel mixture which is compressed inside the cylinder. EI
ignition equipment is required to generate enough spark to ignite the fuel-air mixture and to generate the sparks to the distribution corresponding to the engine operating condition, it is also extremely durable.
Ignition Coil
This device generates the high voltage needed for ignition. The secondary winding is wrapped around the core, which is made from thin iron plates glued layers. On this, the primary winding is wound. The current is sent intermittently to the primary coil according to the opening and closing of the points in the distributor and the secondary coil wrapped around the core generates the high voltage delivered by the coil.
High Voltage Cable
These are cables that reliably transmit the high voltage generated in the ignition coil to the spark plugs. Conductors (wire core) of these cables are covered with a thick layer of rubber insulation to prevent the loss of high voltage. These cables connect the coil Power to the dealer and distributor to the spark plugs. Distributor
The dealer section consists of a power distributor which distributes the current to each spark plug according to the firing sequence, a signal generator which sends power on and off the ignition coil and controlling an advanced ignition timing according to engine conditions.
Spark Ignition current high voltage (10 to 30 kV) from the distributor generates a high temperature spark between the center electrode and ground (earth) of the spark to ignite the mixture compressed air-fuel. This will turn the air-fuel mixture in the cylinder. Spark plugs are divided into the kind of high thermal value and spark plugs low thermal value, depending on the degree of dispersion (thermal value) received heat when the air-fuel mixture is burned. This degree is expressed by a number. Generally, the spark plugs that are suitable for engine and vehicle model are selected, then a specific type of spark plug should be used
o. Mostly, spark plugs are specified clearly described in the Service Specifications with items including motor Repair Manual. Construction of
plugs Spark plugs are constructed as shown in the illustration. The Aito voltage from the distributor is driven to the terminal and passed through the central electrode and resistor, and then generates sparks on the (A) in the illustration. The resistor is included to avoid the "noise" picked up by radio, and is generated by high voltage sparks.
Heat Range Spark
a heat range of spark concerns the operating temperature
the same plug A spark plug dissipates more heat is called " colder plug "because it stays cooler, while a spark that dissipates much less heat is known as hot plugs, because it maintains its heat. The length of the insulator tip (T) of hot and cold candles varies as shown in Fig. The colder plug is the length of the shorter insulator nose (see). Since the surface area exposed to the flame is small and the heat radiation path is short, heat radiation is excellent and the center electrode temperature is not very high. For this reason, we use a colder plug, since it is more difficult than pre-ignition occurs.
On the other hand, because the hot spark plug insulator tip is longer (see c), the surface area exposed to the flame is higher, the heat radiation path is long and the radiation is small . As a result, the central electrode temperature rises too high and self-cleaning temperature can be achieved more rapidly in the range of low speeds in the case of a colder plug. IMPORTANT
There are several standards for candles including not only the thermal range, but also the size of the thread, the projection of the central electrode, etc. to qualify for each vehicle model. Therefore, when you need to replace the spark plugs must be used to meet the standards required for each individual vehicle.
IGNITION PLATINOS
Otto In all other fuel-air mixture is ignited by action external. This is done by an electric spark to produce ignition systems. The spark has to ignite the fuel / air mixture at the precise moment in all operating conditions. For this, the battery voltage of 12 volts is transformed to the voltage of about 10,000 V to 24,000 V, so you can jump a spark in the spark plug electrodes.
power system considered in this project is called the ignition coil and mechanical switch.
transformer coil is used to raise the voltage of the battery. The switch, also known as platinum, is nothing more than a switch capable of interrupting the current flowing through the coil.
To achieve the increase of tension is necessary to: 1 .- The platinum must be closed to allow current flowing in the coil, creating a magnetic field within it. (Primary circuit). 2 .- The platinum must open to interrupt current, which results in increased voltage then required to cause the spark plug. (Secondary circuit).
These two steps produce a spark, therefore, be repeated as often as necessary to keep the motor running. In other words, while a person remains on the engine of his vehicle, the points open and close thousands of times per minute. The problem with this type of system is the large amount of current that must run on the points to feed due to the primary winding of the coil. This current flow causes a lot of heat, forming a crater on the surface of the contacts and the mismatch of the same, thus causing a decrease in system efficiency, which in turn causes higher fuel consumption, power loss, a rapid deterioration of the spark plugs, etc.
The device presented in this project increases the life span of the points, therefore, it results in a power system more efficient and less costly to maintain.
GATE G = B = BAT W = C = COLLECTOR COIL 
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