Dtsi engine ppt

DTS-I AND DTSS-I TECHNOLOGY

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INTRODUCTION:

A conventional 4 Stroke engine has a Single Spark Plug located at one end of the combustion chamber.

Hence there was a requirement to change engine’s design, and there is a need to achieve following objectives-

A high degree of drivability.

First rate standards of reliability.

Long service life

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To overcome those limitations, a new patent was introduced that is known as DTS-i & DTS-Si technology which uses twin spark around the either sides of combustion chamber.

Twin spark technology was used first time in Alfa Romeo Grand Prix car in 1914.

Twin spark usually refers to the dual ignition engines installed in vehicles.

Only in Petrol engines.

The TS series are all 4-cylinder inline’ with twin cam shafts.

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What is DTS-I Technology?

Digital Twin Spark-ignition technology powered engine has spark plugs at either sides of the combustion chamber.

Greater combustion rate because of twin spark plugs located around it.

It enables the engines to combust its fuel at a doublerate than normal.

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Engine Construction:Four in line cylinder.

Engine weight has been considerably reduced by using aluminum-alloy engine block, cylinder head, oil sump and tappet covers.

Eight counterweights ensure optimal balancing of the high strength nitride steel crankshaft.

The pressed-in cast iron cylinder liners feature wet mounting for more effective heat dissipation

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Engine Elements:Construction of DTS-i & DTS-Si engine is same as

that of the conventional 4-Stroke engine. It consists of following parts-

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PistonCylinder Crankshaft Connecting rodFly wheelCarburetor2-sparkplug2-valves

Here the only change made is that the 2 sparkplug placed at the two opposite end of the combustion chamber At 90 degree to each other.

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Working:

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.

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Controlled by the same microprocessor which governs the twin spark ignition and variable valve timing Systems.

There are some advance technology used in DTS-i engine which makes it more powerful than the conventional single sparkplug 4-stroke engine like

1. TRICS III (Throttle Responsive Ignition Control System 3rd generation) technology .

2. Intelligent Digital C.D.I (Capacitor Discharge Ignition) technology.

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Trics III Technology:Throttle Responsive Ignition Control System – III

generation is an intelligent system which can quickly adapt ignition timing to suit different riding characteristics.

TRICS III helps in achieving a good balance between low-to-mid range torque and top-end power.

This helps to ride easily in different conditions like flyovers, hilly areas, dense traffic and highway cruising.

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Intelligent Digital C.D.I: The Intelligent (C.D.I) 

contains a microprocessor, which continuously senses different speeds and load on engine and responds by altering ignition timing.

8 bit microprocessor chip

Working with the TRICS III, the microprocessor’s memory provides optimum ignition.

Improves fuel-efficiency and reduces engine noise and vibration through smoother power delivery.

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Comparing Single and Dual plugs:

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DTS-Si (Swirl Induction) Ignition? Rotating flow (swirl and tumble). Turbulence effect (Reduces burning period). Increased Thermal Efficiency.

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What is DTS-Si Technology? DTS-Si stands for “Digital Twin Spark

Swirl Induction”.

Has 2 spark plugs

Offset positioning of ports generate high swirl and turbulence in combustion chamber.

This results in highly efficient combustion that further results in exceptional mileage.

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Much research work has been devoted to swirl (rotational motion around an axis parallel to the axis of the cylinder), but in recent years increasing attention has been paid to tumble (rotational motion around an axis perpendicular to the cylinder axis).

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How DTS-I & DTS-Si system is better than other technology?

The disadvantage of the single spark engine is that the flame front takes some time to reach the farthest portion of the combustion chamber.(Leads to slower burning of the Air-fuel mixture)

But engines which utilize Dual Spark ignition will be faster and better combustion.

This superior combustion offers both superior power and superior fuel efficiency besides of course reducing emissions.

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Advantages:Less vibrations and noise.Long life of the engine parts such as piston rings and

valve stem.Decrease in the specific fuel consumption.No overheating.Uniform distribution of power.Increased Compression ratio.Better starting of engine even in cold climatic

conditions.

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Disadvantages:

The main disadvantage is the maintenance of the two spark plugs.

If one spark plug get damaged then we have to replace both of them.

Cost increases due to additional technology.

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Applications:

The engine requires more power and fuel-efficient.

The increase in the expected life of the vehicles when compared to conventional technologies.

The bikes powered by the above technologies are very well resistant to breakdowns and temperature fluctuations.

More combustion rate (instantaneous burning of fuel) is required.

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Conclusion:From this , I have concluded that perfect Combustion

in an I.C.engine is not possible.

So for the instantaneous burning of fuels in I.C.engine twin spark system can be used which producing twin sparks at regular interval can help to complete the combustion.

Since these technologies also minimize the specific fuel consumption and harmful emission levels, they can also be considered as one of the solutions for increasing fuel costs and increasing effect of global warming.

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THANK YOU

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