New DTS-I Technology used in 4 stroke petrol engines

1. SUBMITTED BY:
NANDISHA
REG NO:149ME12031
GUIDED BY:
VIRUPAKSHAPPA.Y.K
B.E[MECH],MISTE

2. Contents
 Introduction
 Working principle
 Combustion process
 Importance
 Working
 Functions
 Advantages
 Disadvantages

3. Introduction
DTS-i stands for Digital Twin Spark Ignition
DTS-i has two spark plugs that use to ignite the
charge in the combustion chamber.
2 spark plugs used at either ends of the
combustion chamber help in faster and better
combustion.
It is only used in the petrol engine.

4. Working Principle of DTS-i System
In digital twin spark ignition system two spark plugs
Are used, controlled digitally ; by a micro processor.
These spark plugs ignite the fuel more efficiently at
The end of compression stroke .

5. Combustion Process In SI engine

6. Importance of DTS-i in 4-stroke
Petrol Engine
In 4-stroke petrol engine at time of ignition the air and fuel
mixture does not burn completely. But when DTS-i system is
used in engine the rich mixture is completely burnt and the
ignition time decrease. And power of engine increases.

7. 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 generates
spark and this spark burns the mixture. That burned
mixture gives power to the 4-stroke engine. Here
spark is produced by spark plug and is controlled by
by the microprocessor.

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

9. The working of
Digital twin
spark ignition
in 4-stroke
petrol engine.

10. Various functions of DTS-i system
 It is used to increases the efficiency .
 It used 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 is used to increase the power output of engine.

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

12. Advantages of DTS-i system
Ignition time decreases.
The rich mixture (air and fuel) completely burns in combustion
chamber.
Power produced by DTS-i more compared to single spark
ignition system.
 Increase the pick up of engine
Less vibrations and noise.
 Long life of the engine parts such as piston rings and valve
stem.
Decrease in the specific fuel consumption.
Higher fuel efficiency
Less emission causing less pollution

13. Disadvantages of DTS-i system
The engine tends to overheat and loose power at
higher speeds as compared to a single spark plug
engine.
There may be a kind of knocking sound on the
machine.

14. Thank you