1. Digital Triple Spark Ignition
SNGIST ,North paravur ,Manjaly Dept of Mechanical Engineering iii
ACKNOWLEDGEMENT
First of all, I am grateful to God almighty, for showering his blessings upon me for
enabling me to complete this seminar work on time.
I am deeply indebted to Prof. (Dr.) K.S DIVAKARAN (Director, SNGIST) for his
vital support and encouragement.
I thank Dr. EBY THOMAS THACHIL (Principal, SNGIST) for extending his co-
operation during the course of this work.
With a greater respect,I express my sincere thanks to Asst.Prof. Pramod.K (HOD,
ME) for extending his co-operation and proper guidence during the course of the work.
I take this opportunity to convey my sincere thanks to my seminar co-ordinater Asst.
Prof. Joyal who had been a source of inspiration and for his much needed motivation.
I would also like to extend my heartfelt thanks to my Assi. Prof .Sanju Department of
Civil Engineering SNGIST, for his able guidance and useful suggestions without which
this seminar would not have been successful.
I am also grateful to all the teaching and non teaching staff for their valuable
assistance.
Finally, I am thankful to my parents for their blessings and support, my friends for
their help and encouragement.
JISHNU SREENATH
S8, ME

2. Digital Triple Spark Ignition
SNGIST ,North paravur ,Manjaly Dept of Mechanical Engineering iv
ABSTRACT
Digital Triple Spark Ignition has three spark plugs that use to ignite the charge in the
combustion chamber. Three spark plugs at appropriate positions of the combustion
chamber help in faster and better combustion. It’s only used in petrol engines.
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. DTS-i is used in 4-stroke
petrol engine and each cylinder having three spark plugs.
When the rich mixture of air and fuel enter in the combustion chamber , the three spark
plugs fixed on engine cylinder generates spark and this spark burn the mixture and that
burned mixture gives power to the 4-stroke engine. Here spark generated is controlled
by the engine control unit.
It is used to increase the engine efficiency and also used for faster and better
combustion. It has three spark plug , so it burns the complete rich mixture (air and fuel)
in 4stroke petrol engine.It also increases the power output and mileage of the engine.

3. Digital Triple Spark Ignition
SNGIST ,North paravur ,Manjaly Dept of Mechanical Engineering v
TABLE OF CONTENTS
CHAPTER NO. TITLE PAGENO.
ABSTRACT………………………………………..iv
TABLE OF CONTENTS……………….…………v
TABLE OF FIGURES.……………………………vii
1. INTRODUCTION……………………………………1
1.1. Limitations of four stroke engine..…………...3
2. DIGITAL TWIN SPARK IGNITION..……………4
2.1 Main characteristics of DTS………………….7
2.2 DTS – SI Engine……………….……………..7
2.3 DTS-FI Engine………………………….…….8
2.4 Advantages of fuel junction….……………….9
2.5 Advantages of DTS……………………..…...10
2.6 Limitations of DTS…………………………..11
3. DIGITAL TRIPLE SPARK IGNITION………..…2
3.1 Features………………………………….…..14
3.2 Highest spark and duration…………………..15
3.3 Advantages………........………………….….17
3.4 Limitations…………………………………...17
4. CONCLUSION……………………………………..18
5. REFERENCES……………………………………..19

4. Digital Triple Spark Ignition
SNGIST ,North paravur ,Manjaly Dept of Mechanical Engineering vi
TABLE OF FIGURES
FIGURE
NO:
FIGURE NAME PAGE
NO:
1.1 Otto Cycle 2
1.2 Four Stroke Engine 3
2.1 Digital Two Spark Ignition 4
2.2 DTS-I Engine 5
2.3 Bike with DTS-I engine 5
2.4 DTS Engine. 6
2.5 DTS-I Engine 7
2.6 DTS – SI Engine. 8
2.7 DTS-FI Engine. 9
2.8 DTS-FI Engine 10
3.1 Digital triple spark ignition. 12
3.2 Digital triple spark ignition engine 13
3.3 Tri spark ignition system 15
3.4 Bajaj pulsar 200NS 16

5. Digital Triple Spark Ignition
SNGIST ,North paravur ,Manjaly Dept of Mechanical Engineering vii