The document provides information about industrial training at the Indian Railway Diesel Locomotive Works in Narkatiyaganj. It begins with an introduction to the Indian Railways, describing it as the largest transportation organization in India with over 65,000 km of track. It then discusses locomotives, explaining what they are and the different types used in India, including electric and diesel. The document focuses on the classification, components, and working of diesel locomotives, using the class WDM-2 as a specific example. It describes the key parts of the locomotive including the power pack, transmission types, and provides specifications for the WDM-2 model.

1. INDUSTRIALTRAINING AT
INDIAN RAILWAY
DIESEL LOCOMOTIVE
NARKATIYAGANJ

2. BY : SANJEEV KUMAR
UNI.ROLL NO. 1239176

3. Introduction to Indian
Railways
Railways serve the people of India since 1851
Indian Railways are the biggest organization in
our
our country, which is engaged in transportation.
Indian Railways has more than 65,808 kilometer
(40,891 miles) of track and 7112 stations. In 2014-
15, IR carried 8.397 billion passengers annually or
more than 23 millions passengers a day and
1058.81 million tons of freight in the year. It has
the fourth largest Railways network after those
of the world’s largest Railways network after
those of the united States, Russia and china.

4. Introduction to Indian
Railways
Indian Railways is divided into zones which are
further
sub-divided into divisions. The number of zones in
Indian Railways increased from 6 to 8 in 1951,
and finally 17 in 2010.
It is one of the world’s largest commercial or
utility employers with more than 1.6 million
employees. As to
rolling stock, IR owns over 230,000 (freight)
wagons,
60,000 coaches and 9,000 locomotives.

5. What is Locomotive?
A locomotive or engine is a rail transport
vehicle that
that provides the motive power for a train.
The word organizations from the Latin loco-
“from a place” ,ablative of locus, “place” +
Medieval Latin motivus “causing motion”,
and is a shortened from of the term
locomotive engine,
First used in early 19th
century to distinguish
between mobile and station steam engines

6. Locomotive in India
Locomotive in India consist of ELECTRIC and
DIESEL Locomotives.
STEAM locomotives are no longer used ,
except in heritage trains.
Locomotive are also called locus or engines.
The first successful locomotive was built by
cornish inventor Richard Trevithick.

7. Track And Gauges
Indian Railways uses four gauges.
The 1676 mm (5 ft 6 in) broad gauge.
Which is wider than the 1435 mm (4 ft 8 1/2 in)
standard gauge;
The 1,000 mm (3 ft 3 1/8 in) meter gauge; and
two narrow gauges.
The total length of track used by INDIAN
RAILWAYS was about 114,000 km (71,000 mi)
while the total route length of the network
was 64,215 km (39,901 mi) on31 march 2011.

8. Track And Gauges

9. Section of Locomotive
 Locomotive Engine is divided into five section
1) Noise : Small section where Batteries are placed
2) Driver’s Cabin: Next to Nose all controls are in
this section
3) Power Pack Assembly or Engine : Main section
of Locomotive
4) Compressor section : Compressor are attached
with crank shaft via coupling
5) Radiator : Last section from where thermal
energy in of locomotive discharge outside

10. Section of Locomotive

11. Classification of
Locomotive
 In India, Locomotives are classified according to their track
gauge, motive power, the work they are suited for and their
power or model number.
 It comprises 4 or 5 letters.
 The first latter donates the track gauge
 The second latter donates their motive power (Diesel or
Electric)
 The third letter donates the kind of traffic for which they are
suited (goods, passengers, mixed or shunting).
 The fourth letter will donate their horse power range.
 The fifth letter generally donates a technical variant or
subclass or subtype.
 For example WDM 2A

12. Nomenclature of Locomotive
 The code is of the from [gauge][power][load][series][suffix]
GAUGE- W(BROAD) Y (METRE)
Z (NARROW,2.6’ N (NARROW,2’)
POWER – D = DIESEL C = DC traction
A = AC Traction CA = Dual-power AC/DC
B =Battery electric (rare)
LOAD- M = Multipurpose C = Passenger
G = Goods S = Shunting
L = Light Duty (Light Passenger) R = Railcar
SERIES- 1 - over 1000 hp less than 2000 2 – over 2000 less than 3000
3 – over 3000 hp less than 4000 4 - over 4000 less then 5000
SUFFIX – A -100HP 2 – 200HP 3 – 300HP 4 – 400HP
WDM3A MEANS “Broad gauge diesel powered multipurpose 3100hp loco”

13. TRANSMISSION TYPE OF DIESEL
LOCOMOTIVE :
 Unlike steam engines, internal combustion
engines require a transmission to power the
wheels.
The engine must be allowed to continue to
run when the locomotive is stopped.
The Transmission are of two types
DIESEL – MECHANICAL
DIESAL – ELECTRICAL

14. Diesel - Mechanical
A diesel – mechanical locomotive uses a mechanical
transmission in a fashion similar to that employed in
most road vehicles
This type of transmission is generally limited to low
– powered, low speed shunting ( Switching)
locomotives, lightweight multiple units and self
propelled railcars.
There is usually a fluid coupling interposed between
the engine and gearbox, and the gear box is often of
the epicyclic (planetary) type to permit shifting
while under load.

15. Diesel - Mechanical

16. Diesel Electric
In diesel – electric locomotive, the diesel engines drives
an electrical generator whose output provides power to
the traction motors.
There is no mechanical connection b/t the engine and
wheels.
The important components of diesel – electric
propulsion are the Diesel engines (also known as the
prime movers) the main generator, traction motors and
the control system consisting of the engine governor as
well as electrical and / or electronic components used to
control or modify the electrical supply to the traction
motors, including switchgear, rectifiers, and other
components.

17. Diesel Electric

18. Working of Diesel
LocomotiveMost of the diesel locomotives (including WDM-2)
are actually Diesel electric Locomotives.
An internal combustion diesel engine rotates an
electric generator first, producing electric current.
The electricity thus produced by the generator is
fed to different electric motors, placed near to loco
axles.
This motor output is connected mechanically to the
wheels through suitable gear system.

19. Working of Diesel
Locomotive

20. Indian Locomotive Class WDM-2

21. Indian Locomotive Class WDM-2
The class WDM-2 is Indian Railways’ workhouse
diesel locomotive.
The first unit were imported fully built from the
American Locomotive Company(Alco) in 1962
.since 1964, it has been manufactured in India by
the Diesel Locomotive Works (DLW), Varanasi.
The model name stands for broad gauge (W), diesel
(D), mixed traffic (M) engine.

22. Specifications of WDM-2
Builders : Alco, DLW
Engine : Alco 251-B, V-16 cylinder, 2600hp (2430hp site
rating) with Alco 710/710 turbocharger. 1000rpm max.
400rpm idle;228mm * 266mm bore/stroke;
compression ratio 12.5:1 Direct fuel injection
centrifugal pump cooling system
Governor : GE 17MG8 / Woodward 8574-650
Transmission : Electric, with BHEL TG 10931 AZ
generator (1000rpm, 770V,4520A).
Traction motors : GE752 (original Alco models) (405hp )
BHEL 4906 BZ(AZ) (435hp) and (newer) 4907 AZ(with
roller bearing)
Axel Load : 18.8 tones total weight 112.8t

23. Specifications of WDM-2
Gauge : 1,676mm
Wheel Diameter : 1.902mm
Wheel Base : 12.834mm
Total length : 17.120mm
Width : 2,864mm
Height : 4,185mm
Length over buffer beams : 15,862mm.
Distance between bogies : 10,516mm.

24. Dimensions of WDM-2

25. Power pack Assembly of Diesel
Locomotive
This is the main power source for the locomotive.
It comprises large cylinder block, with the cylinders
arranged in a V-shaped arrangement (generally V-
12 or V-16).
The engine rotates the driver shaft at up to 1,000
rpm and this drives the varies items needed to
power the locomotive.
As the transmission is electric, the engine is used as
the power source of the electricity generator or
alternator, as it is called nowadays.

26. Power pack Assembly of Diesel
Locomotive

27. Cross sectional view of power
pack

28. Main Part & Accessories of
Power Pack
 The POWER PACK (engine) of the diesel
Locomotive consists of various parts and
accessories fitted and attached to it.
The LUBE OIL SUMP, ENGINE BLOCK and HEADER
are combined together to from the Power pack
during the assembling process of the power pack.

29. Main Part & Accessories of
Power Pack
Some of the most important parts and accessories of
the power pack are as follows:
 LUBE OIL HEADER, LUBE OIL SCREEN , LUBE DRAIN
PIPE, LUBE OIL PUMP, WATER PUMP, S-PIPE,CRANK
SHAFT, CYLINDER LINER, PISTONS,CYLINDER LINER,
PISTON, CYLINDER HEAD, ROCKER ARMS, PUSH
ROADS, WATER JUMPER, WATER CHANNEL, WATER
RISER, EXHAUSTER MAINIFOLD, COMPRESSION
CHAMBER EXHAUSTER MOTOR, GOVERNOR,
FIP(FUIL INJECTION PUMP), CAMSHAFT GEAR,SPLIT
GEAR, TURBO SUPERCHARGER,AC CORE, OIL
CATCHER, VIBRATION DAMPER, INJECTOR
NOZZLES, INLET & EXHUST VALVES, BUBBLES
CRUSHERS, CROSSHEAD AND MANY MORE………..

30. DESCRIPTION
CAMSHAFT :The two camshafts are driven by the
crankshaft by the split gear. The camshafts have
three lobes for operating the inlet valves, the
exhaust valves and the FIP. They are located on the
each side of the V- shaped engine cylinders.
Governor :once a diesel engine is running, the
engine speed is monitored and controlled through a
governor. The governor ensures that the engine
speed stays high enough to idle at the right speed
and that the engine speed will not rise too high
when full power is demanded. The governor
consists of a rotating shaft, which is driven by the
diesel engine.

31. DESCRIPTION
LUBE OIL PUMP : This pump helps in the
circulation of the lube oil to various parts and
accessories of the power pack for the purpose of
lubrication .It draws the lube oil header and
circulates it with required optimum pressure to
various parts.
WWATER PUMP : It is a type of centrifugal pump
whose function is to circulates water through parts
and accessories of the power pack necessary to cool
and reduce the temperature by absorbing heat.
Lube oil Screen : it acts as a filter which helps in
filtering of the lube oil coming to the sump after
circulation to various parts. It separates impurities
and metal parts from the lube oil.

32. DESCRIPTION
 CRANKSHAFT: It is the
important shaft of the
power pack. It is
connected to the
camshaft via split gear.
Also on one end of the
crankshaft, the main
generator is connected
and on the other end an
extension shaft is being
fitted which drives the
expressor.

33. THANKYOU