HI CEans Today I am going to give a brief of DTSi technology.As you were aware of it that it was well used in Bajaj Discover and the patent belongs to Bajaj.
We all know that the complete combustion in an IC engine is very difficult as the flame propogation varies and decrease towards the end.To overcome tis problem,Bajaj invented a Digital Twin Spark ignition system where two spark plugs are plugged opposed to each other.During this process we can ignite sparks alternatively and increase the diameter of the flame and burn the fuel instantaneously.This results in better fuel efficiency and lower ignition(Nearer to complete combustion) .This Spark plug was actuated by Electonic cntrol box which also controls the Fuel injection and valve timing.
This ECU helps in adjusting idling speed,cutting off fuel supply when accelerator pedal is released and ensures cold starting.


Design:Hemispherical combustion chamber and piston heads-For better flame propagation,less ignition advance so that lean mixtures can be used to increase the fuel efficiency.This offers better "POWER TO WEIGHT RATIO".It has two overhead cams with camshaft timing variation,Digital electronic ignition with two spark plugs per cylinder and separate ignition distributors.Compact design and superior balance would be the the highlight of this technology.
Highlights:Greater combustion rate ,Greater engine life and increased fuel efficiency,better valve timing.All the process were supervised by a microprocessor and it constantly senses speed and load and respond by altering the ignition timing leading to better fuel efficiency and power.
Advantages:Less vibration,less noise,long life,increased fuel economy,better thermal efficiency,better cold start,Increased Compression ratio amd better power output.
Disadvantages:High NOx emission,We have to replace both Spark plugs even if one gets damaged,high cost.
Courtsey:automobiletechinfo.blogspot.com

Whatever efforts you are taking are truly commendable no no cares to share their knowledge in today's highly competitive world but seeing something like this is truly great 😀

SarathKumar Chandrasekaran

We all know that the complete combustion in an IC engine is very difficult as the flame propogation varies and decrease towards the end.

dear will you please explain this that what is it and why it happens??

Anku2993

dear will you please explain this that what is it and why it happens??

Hi Anku,
Flame Propagation plays a important role in achieving maximum combustion of the fuel we supply but it depends on nature of fuel, construction design of engine , spark ignition method and fuel injection interms of diesel engine.
When we supply fuel it gets compressed and at the end of compression stroke it will be ignited by spark .Now the fuel gets burn and flame propagation starts.It will move all over the cylinder space and try to ignite all fuel supplied.All companies are trying to get complete combustion by new methods. Some bikes have Advanced swirl flow induction to get max combustion .Please be free to ask if you don't get your answer.

SarathKumar Chandrasekaran

Hi Anku,
.Now the fuel gets burn and flame propagation starts.It will move all over the cylinder space and try to ignite all fuel supplied.All companies are trying to get complete combustion by new methods.

Oh thanks dear i got my answer...... 😀 thank you very much.. please post some more stuff. waiting

Hi CEans, I had come up with an brief explanation on the working of Petrol engine ignition system. Many of you would have been wondering on one question: How a whooping voltage of 15,000Volt was produced from a simple 12V or 6V battery and at the end of the post you would find the exact answer. There should be a special arrangement to step up the voltage to required amount and “Ignition system” satisfies it. There are three ignition systems available they are ,

1)Battery coil ignition system(Bit older one)

2)Magneto ignition system and

3)Electronic ignition system(New one and vastly used).

Today I would explain first two methods as both of them follows similar working concepts.

BATTERY COIL IGNITION SYSTEM: In this system the main parts are

Primary circuit:Battery, ignition switch, Primary winding of ignition coil, breaker points , High current condencer.

Secondary Circuit:Secondary winding of ignition coil, distributor, rotor, spark plugs.

Working: The circuit would be connected as shown in the figure. When the ignition switch is switched ON the current flows from battery towards Ignition coil and the current flowing through the coil produces magnetic field and this field will keep on building up in the primary winding of IG coil when the contact breaker points are in closed position(Touching each other, The contact breaker points will be connected to a hexagonal shaped nut fitted to the camshaft). So when the camshaft rotates, the breaker points “open” and “close” alternatively. So when the contact breaker points go to OPEN position the magnetic field in Ignition coil collapses and a high voltage is produced in the secondary coil .This high voltage pass through high tension wire and reaches distributor. In distributor there will be a rotor which rotates and touches the contact points where during each contact the spark plug connected to it will be able to spark with 15,000 Volt.

Magneto coil ignition system:

This one is similar but a battery was replaced with permanent magnet.

Primary circuit:Magnet, primary winding, condencer, Contact breaker points and the end of CB points are grounded as shown in figure.

Secondary circuit: Secondary winding of ignition coil, distributor, rotor, spark plugs.

Working: When we cycle or two wheeler pedal engines crankshaft and flywheel rotates and Magnet connected to it rotates .This will cause the production of current in the primary winding of ignition coil and hereafter the process works same as battery coil ignition system.

Post your queries below.Thanks.