Digital Twin Spark Ignition (DTSi) is a system that uses two spark plugs in a 4-stroke petrol engine cylinder to improve combustion. It ignites the air-fuel mixture at both ends of the combustion chamber for faster, more complete burning. This increases engine power while reducing ignition time and fuel consumption compared to a single spark plug. DTSi is commonly used in motorcycles like the Bajaj Platina and Discover models.

1. DIGITAL TWIN SPARK IGNITION ENGINE (DTSi)
Presented by
NAME : S.ARUNKUMAR
DEPARTMENT : MECHANICAL ENGINEERING
COLLEGE : SUDHARASAN ENGG COLLEGE

2. What Is DTS-I System?
 Digital Twin Spark Ignition has two spark plugs that
use to ignite the charge in the combustion chamber.
 2 spark plugs at either ends of the
combustion chamber help in faster and better
combustion.
 It only use in the petrol engine.

3. Why do we use the DTS-i in 4-stroke Petrol
Engine?
In 4-stroke petrol engine at ignition time the
air and fuel mixture does not burn completely.
But when DTS-i system use in engine the rich
mixture completely burn and the ignition time
decrease. And power of engine increases

4. • DTS-i use in 4-stroke
petrol engine. And each
cylinder having two
spark plugs.

5. Working of DTS-I
system
 When the rich mixture of air and fuel enter in the
combustion chamber , the two spark plugs
fixed at opposite end of engine cylinder generated
spark and this spark burn the mixture that burned
mixture gives power to the 4-stroke engine. Here
spark plugs controlled by the microchip .

6. The working of
digital twin spark
ignition in 4-stroke
petrol engine shown
in diagram

7. Various functions of DTS-i system
It use to increases the efficiency .
It use for faster and better combustion.
It has two spark plug , so it burns the complete
rich mixture (air and fuel) in 4stroke petrol
engine.
It use to increase the power output of engine.

8. Combustion Process In SI engine

9. What are the benefits of DTS-i system?
 Ignition time decreases.
 The rich mixture (air and fuel) completely burns in
combustion chamber.
 Power produced by DTS-i more compare to single
spark ignition system.
 Increase the pick up of engine

10.  Less vibrations and noise.
 Long life of the engine parts such as piston rings and
valve stem.
 Decrease in the specific fuel consumption.
 No over heating.
 Gradual increase in the pressure.

11. Disadvantages of DTS-i system
The engine tends to overheat and loose power at
higher speeds as compared to a single plug
engine.
There may be a kind of knocking sound on the
machine.
DTS-i is actually a simpler, cheaper and low-tech
alternative to making more power and burning
less fuel. However owners mistakenly think it is
high-tech.

12. bike in which we use the dts-i engine?
In india bajaj has patented for dtsi technology .
At present platina,xcd125,135,discover150,pulsar
135,150,180,200,220 are using the dtsi (digital
twin spark ignition system). which means the
petrol enters into the cylinder burns more
efficiently.

13. THE END..
THANKS………..