With the vast variety of automotive applications, the ignition system has a vital role as it generates a spark. It heats an electrode to a high temperature so that the fuel-air mixture can be ignited in all spark-ignition internal combustion engines. other automotive including the stationary and movable applications is also designed with the system, which may include gas-fired and oil-fired boiler, rocket engines, etc. This is the reason why various types of ignition system have been in existence.
However, spark-ignition petrol (gasoline) internal combustion engine is the most dependent on the system both the car and motor motorcycles. Today we’ll be looking at the definition, function, applications, components, diagram, types, and working of the ignition system in internal combustion engines. We’ll also be looking at the advantages and disadvantages of the ignition system on their various types.
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- 1 Ignition system definition
- 2 Function of ignition system
- 3 Applications of ignition system
- 3.1 Join our Newsletter
- 4 Types of ignition system
- 4.1 Magneto ignition system:
- 4.2 Electronic ignition system:
- 4.3 Battery ignition system:
- 5 Components of ignition system
- 5.1 Magneto ignition system
- 5.2 Battery ignition system
- 5.3 Electronic ignition system
- 5.3.1 Diagram of the various ignition system:
- 6 Working principle
- 6.0.1 Video on ignition system working:
- 7 Advantages and disadvantages of ignition system
- 7.1 Advantages:
- 7.2 Disadvantages:
- 7.3 Kindly Share!
Ignition system definition
An ignition system is a system used in some types of an internal combustion engine, often petrol engine to ignite the fuel-air mixture. This ignition is purposely performed so that the explosion in the combustion chamber can be accomplished. This is to say, the spark that occurs in the ignition system (spark plug) causes the fuel-air mixture to burn.
Just as earlier mentioned, the ignition system is featured in spark-ignition internal combustion engines, although it’s also employed in some other mechanical applications. But it’s quite popular on the gasoline engine. well, the process is different on compression ignition diesel engines as the fuel-air mixture is ignited by the compression heat which causes the elimination of the spark plug. This is another topic of the discussion you can check out below.
Read more: Components of internal combustion engine
Function of ignition system
Below is the function of an ignition system in spark-ignition internal combustion engines:
· The primary function of an ignition system is to create an electric spark in the engine combustion chamber at the proper time so that the petrol and air mixture can ignite.
· It produces 30,000 volts across the spark plug.
· High spark voltage spark is supplied to each spark plug in the correct sequence.
· There is different spark timing with load, speed, and other conditions.
· The spark is timed so it can occur as the piston is approaching the top dead center.
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Applications of ignition system
Below are the applications of the various types of ignitions system in automotive engine:
· The system is used in two-wheeler vehicles (SI engines.
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· Just as the battery is used to generate power in the battery ignition system, magneto is used for the generation of electricity.
· Finally, the ignition system is widely used in applications such as tractors, outboard motors, washing machines, marine engines, power units, and natural gas engines.
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Types of ignition system
Below are the three basic types of ignition system used in spark-ignition internal combustion engines:
Magneto ignition system:
In the magneto types of the ignition system. magneto serves as the major component used for creating the energy of high voltage. This high voltage is then used for the generation of electricity which is further used to run vehicles. The system is a combination of a distributor and a generator built as one unit. This makes it different from the conventional distributor that creates spark energy without external voltage.
Electronic ignition system:
The electronic types of an ignition system are fully controlled electronically and are powered with battery, unlike the previous one that uses magneto. It has negative and positive terminals; the negative terminal is grounded while the positive is connected to the ignition switch. So, when the switch is on, power is supplied to the electronic ignition module through the wires. The power is then send to the ignition coil that has two winding; primary winding and secondary winding. These windings are insulated and the primary is thicker than the secondary winding. There is a rod between the windings that generate a magnetic field. Finally,
Battery ignition system:
The battery types of an ignition systems are widely used in automobiles to produce spark using spark plug with the aid of a battery. It’s often found in 4-wheeler vehicle but now used in two-wheeler vehicles that obtains current from a 6-volt or 12-volt battery in the ignition coil. Read the full article below!
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Components of ignition system
Below are the components of the different types of the ignition system and their functions:
Magneto ignition system
The components of the magneto ignition system include magneto, distributor, capacitor, cam, contact breaker, and ignition switch. Their function has been explained in the full article.
Battery ignition system
The components of the battery ignition system battery, ignition switch, ignition coil, ballast resistor. Its components also contain a contact breaker, distributor, capacitor, and spark plug. Check the full article to see their function. Finally,
Electronic ignition system
Components of the electronic ignition system also include battery, distributor, capacitor, ignition control module, armature, ignition coil, and spark plug.
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Diagram of the various ignition system:
The working of an ignition system is less complex and can be easily understood. It obvious with the above explanation of the above sections you are now familiar with the functional parts and the operation of the system. Most of the types of ignition systems work with battery but few are able to generate power themselves. However, with the video below you will learn the working of the various types of the ignition systems.
Video on ignition system working:
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Advantages and disadvantages of ignition system
Below are the advantages of ignition system:
· Less maintenance is required in magneto ignition systems, it’s less expensive, occupies less space, and does not require a battery. It has high working efficiency due to high-intensity spark and less prone to error as the battery is not used
· Another advantage of ignition systems are that the choice of electronic types has fewer parts and also required low maintenance. Its efficiency is also good and it generates less emission. Another advantage of the electronic ignition system is that it increases fuel efficiency. Finally,
· The advantage of battery types of ignition systems is that there is good intensity of spark. It also provides a high concentration of spark even when the engine speed is low or at first starting. It also has less maintenance just like other types of ignition system.
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Despite the great advantages of the ignition system. some limitations still occur. the following are the disadvantages of ignition system:
· The disadvantage of the magneto types of ignition system are that there is the poor quality of spark at first start of low speed. Misfiring might also occur due to leakage and the cost of the system is high.
· Disadvantage of the electronic types of ignition system are that the cost of the system is dramatically high and can occupy much space as a battery must be used to power the system.
· In the battery the disadvantages include periodic maintenance for the battery alone, more space is occupied and efficiency decreased with a reduction in spark intensity.
Read more: Understanding battery used in automobiles
In conclusion, the ignition system is popular on automotive devices to help the spark plug in igniting the fuel-air mixture. Well, in this article we’ve covered a lot on the system. we unveil the definition, function, components, and the various types of ignition system. we’ve also covered its working as well as the advantages and the disadvantages of the types of ignition system.
I hope you enjoyed the reading, if so, kindly comment on your fav part of the article and you can check some other interesting posts here on StudentLesson. Thanks!
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