2. Presented by: ARVIND KUMAR YADAV
U.ROLL-1105640025

3. HISTORY OF RDSO
INTRODUCTION
WHAT IS A TURBOCHARGER
WORKING PRINCIPLE
COMPARING TURBOCHARGER AND SUPERCHARGER
TURBOCHARGER IN LOCOMOTIVES
ADVANTAGES
DISADVANTAGES
APPLICATIONS
CONCLUSION

4. • The Research Designs and Standards
Organisation (RDSO) is an organisation under the
Ministry of Railways of India.
• Its first named Railway Testing and Research Centre
(RTRC) & it was set up in 1952 at Lucknow
• Its functions as undertaking intensive investigation of
railway problems, providing basic criteria and new
concepts for design purposes
• In 1957, its named Research Designs and Standards
Organisation (RDSO)

5. It is derived from Greek turbin’, which means mixing,
(also from Latin "turbo" ("spinning top").
Turbochargers were originally known as turbo
superchargers.
It is invented by Swiss engineer Alfred Büchi in 1905
and the turbocharger in locomotives began in 1920s.
Nowadays aircrafts like P-47 thunderbolt,P-38
lightening and automobile cars are using this for
greater efficiency.

6. It is a turbine-driven forced induction device that
increases an engine's efficiency and power by forcing
extra air into the combustion chamber.
It is a device to increase the volumetric efficiency
above that value which can be obtained by natural
aspiration.
It increases the pressure or density of air supplied to an
internal combustion engine. This gives each intake
cycle of the engine more oxygen, letting it burn more
fuel and do more work, thus increasing power.

7. A turbocharger consists of a turbine and a compressor on a
shared shaft.
The turbine converts exhaust to rotational force, which is in turn
used to drive the compressor.
The compressor draws in ambient air and pumps it in to the intake
manifold at increased pressure, resulting in a greater mass of air
entering the cylinders on each intake stroke.
In some instances, compressed air is routed through an
intercooler before introduction to the intake manifold.

8. Turbo Cycle

9. Turbine section :
The gas has passed through
the blades of the wheel it
leaves the turbine housing
via the exhaust outlet area.

10. Compressor section :
The compressor wheel is
connected to the turbine
by a forged steel shaft

11. A typical turbocharger showing its interior design

13. ROTOR COMPRESSOR
BLOWER
CASING
TURBINE CASING
VARIOUS PARTS OF A LOCOMOTIVE TURBOCHARGER

14. Supercharger is the mechanically driven by the engine,
often through a belt connected to the crankshaft,
whereas a turbocharger is driven by the engine's
exhaust gas.
Compared to a mechanically driven supercharger,
turbochargers tend to be more efficient, but less
responsive.
turbochargers often producing 15% to 30% more
adiabatic efficiency.

15. Provides better air-fuel mixture to the locomotive
engine.
As the air is compressed, the fresh charge always have a
high temperature. So, less engine load is applied to
compress the charge in combustion chamber.
No extra driving power requirement as it’s turbine is
driven by the exhaust gases of the locomotive engines.
Gain more power and increase engine efficiency without
enlarging the power-plant.

16. It is less responsive than supercharger.
Cost and complexity.
Detonation.
Space.
Turbo lag or spool time.
Mechanical damage of vane wheels.
So avoid these problems a combination of turbocharger
and supercharger can mitigate the weaknesses of both.
This technique is called twin-charging.

17. Locomotives
Cars
Motorcycles
Trucks
Aircrafts
Marine and land-based Diesel turbochargers