With the accelerated consumption of fuel in day-to-day life, there is an augmenting demand for the development of a more fuel efficient engine. Further , there is a growing concern for the reduction of emissions that emanate from vehicles .In order to cater to all these heeds, AUDI has come up with an amazing technology called TDI (TURBOCHARGED DIRECT INJECTION) .
The inception of this incredible technology has created a revolution in diesel engines. It has made diesel engines much more efficient than its ancestors as well as its rival gasoline engine, by ensuring optimum cylinder charging. This is accomplished by incorporating a crucial component called the turbocharger. Components like piezoelectric injector, EGR, common rail, VTG consummate this engine, bolster in achieving a phenomenal performance. The most common discrepancy we found in diesel engines was turbo lag. We have introduced a modification in this engine which we perceive that it would serve as a solution for the turbo-lag. In this technique we give feedback for the turbocharger by using a DC SOLENOID MOTOR till the boost threshold is reached, by the actuation of sensors. And we have also introduced the Principles of Hydrodynamic Design Of Humpback Whale to increase the efficiency of the turbo charger at any running conditions.
MODERN DEVELOPMENT IN SUCTION PROCESS OF IC ENGINESgautam472
This review paper deals with the evolution of the general processes employed in the suction process of IC Engines. The suction process has evolved from the traditional use of carburettors to much more sophisticated systems like CRDi, MPFi, etc. used in modern days. In doing so, various parameters such as the volumetric efficiency and the turbulence, etc. inside the engine have to be considered. Additional processes such as supercharging and turbocharging are employed to improve these parameters. It is also highly desirable to vary the Air-Fuel ratio effectively according to the speed of the engine for better power output and mileage. Thus researchers have developed several ways over the years to achieve it. Recent research work being carried out in this field is in the areas of Pressure Wave Superchargers, Variable Geometry Turbochargers, Multiple Intake valves, Shrouded Intake Valves, Camless Engines etc. Many of these technologies have been employed in the industry such as the DTS-Si, TDi&i-vtec Engines.
CYLINDER DEACTIVATION ON TWO DIFFERENT CUBIC CAPACITY ENGINEIAEME Publication
Cylinder deactivation is a fuel consumption reduction technology for throttled internal combustion engines and other engines with thermal efficiency loss at part cylinder. Dynamic skip firing, which in its ultimate form incorporates anytime, any-cylinder deactivation, continuously varies the number of firing cylinders, along with cylinder load, obtaining flexible control of acoustic and vibrational excitations from the engine, and allowing an expanded operational envelope with fewer drive ability/NVH issues. This project comprises of two different cubic capacity 4 stroke (150cc-pulsar and 100cc-kinetic) engines coupled with use of sprockets and chains.
In these we discuss about what is Turbo Charger, why we use it. What is the technology behind it. Parts of TC. Design and operation. Response time. What is Boost Control in TC and who it works. Failures in TC and its maintenance. Advantages and Disadvantages.
MODERN DEVELOPMENT IN SUCTION PROCESS OF IC ENGINESgautam472
This review paper deals with the evolution of the general processes employed in the suction process of IC Engines. The suction process has evolved from the traditional use of carburettors to much more sophisticated systems like CRDi, MPFi, etc. used in modern days. In doing so, various parameters such as the volumetric efficiency and the turbulence, etc. inside the engine have to be considered. Additional processes such as supercharging and turbocharging are employed to improve these parameters. It is also highly desirable to vary the Air-Fuel ratio effectively according to the speed of the engine for better power output and mileage. Thus researchers have developed several ways over the years to achieve it. Recent research work being carried out in this field is in the areas of Pressure Wave Superchargers, Variable Geometry Turbochargers, Multiple Intake valves, Shrouded Intake Valves, Camless Engines etc. Many of these technologies have been employed in the industry such as the DTS-Si, TDi&i-vtec Engines.
CYLINDER DEACTIVATION ON TWO DIFFERENT CUBIC CAPACITY ENGINEIAEME Publication
Cylinder deactivation is a fuel consumption reduction technology for throttled internal combustion engines and other engines with thermal efficiency loss at part cylinder. Dynamic skip firing, which in its ultimate form incorporates anytime, any-cylinder deactivation, continuously varies the number of firing cylinders, along with cylinder load, obtaining flexible control of acoustic and vibrational excitations from the engine, and allowing an expanded operational envelope with fewer drive ability/NVH issues. This project comprises of two different cubic capacity 4 stroke (150cc-pulsar and 100cc-kinetic) engines coupled with use of sprockets and chains.
In these we discuss about what is Turbo Charger, why we use it. What is the technology behind it. Parts of TC. Design and operation. Response time. What is Boost Control in TC and who it works. Failures in TC and its maintenance. Advantages and Disadvantages.
What is a turbocharger and wastergate? And, how to diagnose a defective turbocharger? If you have more auto parts questions please view our other auto parts presentations.
The automobile industry has seen a very rapid growth in the past decade, this is followed by the evolution from ordinary inline cylinder engines to high performance V-type engines, etc., but the parameters which take the centre stage of the competition are efficiency, power, and environmental safety. One technology that is going to be the heart of the future diesel cars is TWIN TURBO technology. The basic principle is derived from the old familiar turbo mechanism. This uses the exhaust from the engine to pressurize the inlet air, thereby providing more oxygen to flow through the combustion chamber, to burn the fuel more efficiently and thus increasing the power output. Unlike the Bi-Turbo mechanism, this Twin Turbo is a combination of two turbo chargers mounted serially rather than in parallel. This configuration offers the car a whopping 112 BHP per litre (1000cc) of engine capacity, which is a world record. And it produces a maximum torque of 400Nm at 1400 RPM. Even though the car delivers a much higher power than its counterparts, it still maintains the conventional 16.5 KMpL as mileage. The environmental safety standard is the major consideration today; this technology is EURO V ready. The only car in India, which has this facility, is Hyundai i20. This technology if properly adopted by the automobile industry could provide a major breakthrough in the Indian commercial car manufacturing.
What is a turbocharger and wastergate? And, how to diagnose a defective turbocharger? If you have more auto parts questions please view our other auto parts presentations.
The automobile industry has seen a very rapid growth in the past decade, this is followed by the evolution from ordinary inline cylinder engines to high performance V-type engines, etc., but the parameters which take the centre stage of the competition are efficiency, power, and environmental safety. One technology that is going to be the heart of the future diesel cars is TWIN TURBO technology. The basic principle is derived from the old familiar turbo mechanism. This uses the exhaust from the engine to pressurize the inlet air, thereby providing more oxygen to flow through the combustion chamber, to burn the fuel more efficiently and thus increasing the power output. Unlike the Bi-Turbo mechanism, this Twin Turbo is a combination of two turbo chargers mounted serially rather than in parallel. This configuration offers the car a whopping 112 BHP per litre (1000cc) of engine capacity, which is a world record. And it produces a maximum torque of 400Nm at 1400 RPM. Even though the car delivers a much higher power than its counterparts, it still maintains the conventional 16.5 KMpL as mileage. The environmental safety standard is the major consideration today; this technology is EURO V ready. The only car in India, which has this facility, is Hyundai i20. This technology if properly adopted by the automobile industry could provide a major breakthrough in the Indian commercial car manufacturing.
Similar to INVESTIGATION OF TDI TECHNOLOGY AND CONCEPTUAL ERADICATION OF TURBOLAG BY INCORPORATAION OF SOLENOID MOTOR, WITH THE AID OF HYDRODYNAMIC DESIGN
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INVESTIGATION OF TDI TECHNOLOGY AND CONCEPTUAL ERADICATION OF TURBOLAG BY INCORPORATAION OF SOLENOID MOTOR, WITH THE AID OF HYDRODYNAMIC DESIGN
1. INVESTIGATION OF TDI CONCEPET AND CONCEPTUAL ERADICATION
OF TURBO LAG BY INCORPORATION OF SOLENOID MOTOR WITH THE
AID OF HYDRODYNAMIC DESIGN
M.ASHWIN
C.VARUN
P.BHUVANESWARAN
2. What is TDI?
• TDI is expanded as Turbo-charged Direct
Injection
• It was incorporated in diesel engines to
increase performance and fuel efficiency.
• TDI offers a lot of boost to the engine, without
sacrificing fuel economy.
3. EVOLUTION
• TDI technology was first founded by AUDI, a
subsidiary of Volkswagen in the year 1989.
• The next major development in the TDI concept
took place with implementation of common rail
system in 2003.
• Piezo electric injection replaced all the
conventional injection methods from early 2009.
• Later EGR concept was developed in concern for
the environment
5. TURBO-CHARGER
• Cylinder charging device which
uses the exhaust gas as a
driving source.
• It forces more air into the
combustion chamber.
• Increases the efficiency of
the engine.
6. VTG TURBO-CHARGER
• VTG refers to variable turbine geometry.
• Used for varying the aspect ratio of the turbo-
charger continuously.
• Increased performance of the turbo- charger at
all running conditions, especially at low speed
of engine.
8. COMMON RAIL DIRECT INJECTION
• The common rail system prototype was
developed in the late 1960s by Robert Huber.
• It is a pressure accumulator device which uses
direct injection at a pressure of 1000 bar -
2000bar.
• Here each injector is opened electronically
rather than mechanically.
• The injection process is divided into 3 phases
– pre, main and post injection.
10. EXHAUST GAS RECIRCULATION
• EGR is a nitrogen oxide emission reduction
technique used in TDI engine.
• EGR operates by recirculating of a minimal
amount of the exhaust gas back to the
combustion chamber.
• Dilution of oxygen in the fresh intake and
provides inert gases as absorbents.
• These inert gases helps in preventing the
combustion chamber from reaching its
maximum temperature.
11. MODIFICATION
• The most common defect found in TDI
engine’s is Turbo Lag.
• Turbo lag is the time delay for the activation
of turbo charger.
• Initial boost is prevented because of turbo lag.
• Fuel economy is reduced due to more intake of
fuel during the low engine speeds.
• Causes great inconvenience to the driver due
to the lack in initial boost.
12. FEEDBACK USING SOLENOID MOTOR
• During turbo-lag period turbine is driven by
means of solenoid motor. (5000 rpm)
• The solenoid detaches the motor from the
turbine upon threshold RPM (turbo activation)
• This motion of the solenoid is controlled by
the ECU
• The engine RPM info is fed to the ECU by the
crank shaft position sensor.
• Excess pressure is relieved by a wastegate .
13. HYDRODYNAMIC DESIGN OF
HUMPBACK WHALES
• The elongated pectoral fins of humpback
whales have good aerodynamic qualities.
• This idea is induced in the turbocharger by
replacing the conventional turbines.
• Elongated pectoral flippers are introduced at
the sides of turbine blades.
• This reduces drag on the blade increasing
turbine speed by 30%.
14. WHY DRIVE A TDI ??
• It offers exceptional boost to the engine
• It delivers high performance with low
consumption of fuel.
• EGR significantly reduces NOx that is
produced during combustion.
• CRDi helps in achieving maximum output from
the fuel that is consumed.
15. CONCLUSION
• The detailed working of TDI engine with its
pros and cons were considered
• The vast potential of TDI created a
breakthrough in diesel engines.
• Certain modification has been suggested for
the hindrances that prevail in the current
scenario.
