Page 328 - (DK) The Ultimate Visual Dictionary 2nd Ed.

RAIL AND ROAD
FRONT VIEW OF UNION PACIFIC
Diesel trains DIESEL-ELECTRIC LOCOMOTIVE, 1950S

Exhaust Windshield Cab front
RUDOLF DIESEL FIRST DEMONSTRATED the diesel engine vent wiper Horn window Headlight
in Germany in 1898, but it was not until the 1940s that diesel
Cab Name of
locomotives were successfully established on both passenger
door operating
and freight services in the US. Early diesel locomotives like railroad
the Union Pacific were more expensive to build than steam
locomotives, but were more efficient and cheaper to operate,
Illuminated
especially where oil was plentiful. One feature of diesel engines locomotive
is that the power output cannot be coupled directly to the wheels. unit number
To convert the mechanical energy produced by diesel engines,
a transmission system is needed. Almost all diesel locomotives
have electric transmissions, and are known as diesel-electric Railroad
crest
locomotives. The diesel engine works by drawing air into the
cylinders and compressing it to increase its temperature; a small
quantity of diesel fuel is then injected into it. The resulting
combustion drives the generator (more recently an alternator)
to produce electricity, which is fed to electric motors connected
to the wheels. Diesel-electric locomotives are essentially
electric locomotives that carry their own power plants, Cab Step Motor-driven Air-brake Center buck-
and are used worldwide today. The Deltic diesel-electric step bogie axle coupling eye coupler
hose
locomotive, similar to the one shown here, replaced
classic express steam locomotives, and ran
at speeds up to 100 mph (160 kph). PROTOTYPE DELTIC DIESEL-ELECTRIC LOCOMOTIVE, 1956
Engine room vent Inspection hatch Engine exhaust port Radiator fan Engine room window Engine room vent

Fuel tank Water for Inspection Folding Drain for Radiator Sand Telescopic Drain for
heating boiler socket step radiator coolant coolant box damper control reservoir

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