Diesel-electric train | Wikipedia audio article
Channel: wikipedia tts
Date: 08/02/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Diesel_locomotive


00:03:08 1 History
00:03:17 1.1 Adaptation of the diesel engine for rail use
00:06:50 1.2 Early diesel locomotives and railcars in US
00:07:02 1.2.1 Early American developments
00:16:42 1.2.2 First American series production locomotives
00:21:49 1.3 Early diesel locomotives and railcars in Europe
00:22:01 1.3.1 First functional diesel vehicles
00:25:57 1.3.2 Switchers
00:26:49 1.3.3 Diesel railcars for regional traffic
00:28:39 1.3.4 High-speed railcars
00:30:33 1.3.5 Further developments
00:32:07 1.4 Early diesel locomotives and railcars in Asia
00:32:19 1.4.1 Japan
00:33:08 1.4.2 China
00:33:45 1.5 Early diesel locomotives and railcars in Australia
00:35:35 2 Transmission types
00:36:01 2.1 Diesel–mechanical
00:37:51 2.2 Diesel–electric
00:41:35 2.2.1 Diesel–electric control
00:42:36 2.2.2 Throttle operation
00:50:24 2.2.3 Propulsion system operation
01:00:09 2.2.4 Dynamic braking
01:03:29 2.2.5 Electro-diesel
01:04:46 2.3 Diesel–hydraulic
01:05:10 2.3.1 Hydrostatic transmission
01:06:26 2.3.2 Hydrokinetic transmission
01:08:06 2.3.2.1 Locomotives
01:10:04 2.3.2.2 Multiple units
01:10:56 2.3.2.2.1 Examples
01:13:43 2.4 Diesel–steam
01:14:21 2.5 Diesel–pneumatic
01:15:32 3 Multiple-unit operation
01:18:50 3.1 Cab arrangements
01:20:02 3.2 Cow-calf
01:23:33 4 Fittings and appliances
01:23:44 4.1 Flameproofing
01:25:07 4.2 Lights
01:25:50 5 Environmental impact
01:28:51 5.1 Mitigation
01:30:43 6 Diesel's advantages over steam



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SUMMARY
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A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotive have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels.
Early internal combusition locomotives and railcars used kerosene and gasoline as their fuel. Dr. Rudolf Diesel patented his first compression ignition engine in 1898, and steady improvements in the design of diesel engines reduced their physical size and improved their power-to-weight ratio to a point where one could be mounted in a locomotive. Internal combustion engines only operate efficiently within a limited torque range, and while low power gasoline engines can be coupled to a mechanical transmission, the more powerful diesel engines required the development of new forms of transmission. 
The first successful diesel engines used diesel–electric transmissions, and by 1925 a small number of diesel locomotives of 600 hp (450 kW) were in service in the United States. In 1930, Armstrong Whitworth of the United Kingdom delivered two 1,200 hp (890 kW) locomotives using Sulzer-designed engines to Buenos Aires Great Southern Railway of Argentina. In 1933, diesel-electric technology developed by Maybach was used propel the DRG Class SVT 877, a high speed intercity two-car set, and went into series production with other streamlined car sets in Germany starting in 1935. In the USA, diesel-electric propulsion was brought to high speed mainline passenger service in late 1934, largely through the research and development efforts of General Motors from 1930–34 and advances in lightweight carbody design by the Budd Company.
The economic recovery from the Second World War saw the widespread adoption of diesel locomotives in many countries. They offered greater flexibility and performance than steam locomotives, as well as substantially lower operating and maintenance costs. Diesel–hydraulic transmissions were intrdouced in the 1950s, but from the 1970s onwards diesel–electric transmission has dominated.