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Road Switcher
A road switcher locomotive is a type of railroad locomotive designed to both haul railroad car, railcars in mainline service and Shunting (rail), shunt them in railroad yards. Both type and term are North American in origin, although similar types have been used elsewhere. A road switcher must be able to operate and have good visibility in both directions. As a road engine, a road switcher must be able to operate at road speeds, with suitable power and cooling capacity. It has high-speed road trucks rather than low-speed switcher only trucks. Modern road trucks are always equipped with "frictionless" roller bearings, whereas switcher trucks were almost always equipped with "friction" plain bearings, until plain bearings were outlawed in interchange service on both railcars and locomotives. Overview For the reasons given above, road switchers are generally hood units. The set-back cab of a hood unit provides more safety in the event of a collision at speed than most switche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ALCO RS-2
The ALCO RS-2 is a AAR wheel arrangement#B-B, B-B diesel-electric locomotive built by the American Locomotive Company (ALCO) from 1946 to 1950. ALCO introduced the model after World War II as an improvement on the ALCO RS-1. Between 1946 and 1950, 377 examples of the RS-2 were built, primarily for American and Canadian customers. ALCO discontinued the RS-2 in 1950 in favor of the very similar ALCO RS-3, RS-3, which was more popular. Several examples have been preserved. Design and development The RS-2 was a further development of the road switcher concept inaugurated with the ALCO RS-1, RS-1. Externally, the RS-2 bodywork was more rounded. A more significant change was the switch from the RS-1's ALCO 539T engine to the ALCO 244, adding horsepower to better handle heavy road service. The new engine was a turbocharged four-stroke diesel engine, four-stroke V12 engine, V12 diesel engine with a bore (engine), bore and stroke (engine), stroke developing 1,500 (later 1,600) hp at 1, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ChME3
The ČKD ČME3 is a six-axle diesel–electric locomotive built by ČKD. The class was used primarily for shunting and mainline duties. With over 8,000 produced during a production run of 31 years, it is one of the most produced locomotives in the world. Units have been operated by Russia, Belarus, Ukraine (as class ЧМЭ3, transliteration ''ChME3'') and other ex-Soviet bloc countries, in Czechoslovakia (as class T669.0, T669.1 and T669.5, later as ŽSR 770 and ČD 770 in Slovakia and the Czech Republic), on industrial railways in Poland (S200), in Albania (HSH T669.1), Iraq (DES 3101), Syria (LDE 1500) and in India (DEC 120). The ČKD ČME3 is classified as a Co-Co or C-C diesel–electric locomotive, with all six axles powered. As such, it is particularly suited for pulling heavy, slow freight and cargo trains. Gallery Тепловозы ЧМЭ3 в депо Славянск.jpg, ČME3 in depot Sloviansk, Ukrainian Railways ЧМЭ3-2454, Молдова, Приднест ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railway DF5
The DF5 ( (Dōngfēng 5) or "East Wind") is a diesel-electric locomotive used by China Railway in the People's Republic of China. It has been in production since 1976 and was still produced as of 2006 by several local companies. It is the most common road switcher locomotive in China and is used for yard and road switching duties. A small number are also in service with the Korean State Railway in North Korea. Production History In 1975, to meet a need for new and more powerful switchers, the CRRC Tangshan, Tangshan Locomotive & Rolling Stock Works, the CNR Dalian, Dalian Locomotive Works and the CNR Dalian Locomotive Research Institute, Dalian Locomotive Research Institute began a cooperative development effort on a new engine based on the 16V240ZJ diesel engine used in the China Railways DF4, Dongfeng 4, to be used in the development of a new locomotive, the DF5. By the end of 1975, the Tangshan and Dalian plants completed a successful trial of the first Model 8240Z inline 8-cy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SNCB Class 77
The NMBS/SNCB Class 77 (also known as HLD 77 or HLR 77) is a class of 4 axle B'B' road switcher diesel hydraulic locomotive designed for shunting and freight work manufactured at the beginning of the 2000s by Vossloh Schienentechnik/Vossloh Locomotives at the Maschinenbau Kiel plant in Kiel, Germany for the National Railway Company of Belgium (SNCB/NMBS). Background and design The initial order for 90 locomotives was given to Siemens in 1997 to replace an aging diesel fleet; the railway opted for a locomotive suitable for both shunting and mainline use, rather than separate classes. Siemens sold its locomotive manufacturer division (Siemens Schienenfahrzeugtechnik) to Vossloh in 1998. The locomotives were variants of the standard MaK G 1200 series design, and are considered a development of the MaK G 1205 type. The locomotive is an off-centre cab design with a two-speed Voith hydraulic transmission driving all axles via cardan shafts. Auxiliary electrical supply is provided ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SNCB
The National Railway Company of Belgium (, NMBS; , SNCB; ) is the national railway company of Belgium. The company formally styles itself using the Dutch and French abbreviations NMBS/SNCB. The corporate logo designed in 1936 by Henry van de Velde consists of the linguistically neutral letter B in a horizontal oval. History NMBS/SNCB is an autonomous government company, formed in 1926 as successor to the Belgian State Railways. From 1942 to 1944, amid Nazi Germany's occupation of Belgium, the company was paid 51 million Belgian francs by the Nazi Germany to send 28 trains carrying 25,843 Jews and Roma people to Auschwitz where only 1,195 survived. The company also sent 16,000 political prisoners to concentration camps. In 2005, the company was split up into three parts: Infrabel, which manages the railway infrastructure, network operations, and network access, the public railway operator NMBS/SNCB itself to manage the freight (B-Cargo) and passenger services, and NMBS/SNCB-H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Power Inverter
A power inverter, inverter, or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC. The input voltage, output voltage and frequency, and overall power handling depend on the design of the specific device or circuitry. The inverter does not produce any power; the power is provided by the DC source. A power inverter can be entirely electronic or maybe a combination of mechanical effects (such as a rotary apparatus) and electronic circuitry. Static inverters do not use moving parts in the conversion process. Power inverters are primarily used in electrical power applications where high currents and voltages are present; circuits that perform the same function for electronic signals, which usually have very low currents and vol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Locomotive
A diesel locomotive is a type of railway locomotive in which the prime mover (locomotive), power source is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels. The most common are diesel–electric locomotives and diesel–hydraulic. Early internal combustion engine, internal combustion locomotives and railcars used kerosene and gasoline as their fuel. Rudolf Diesel patented his first compression-ignition engine in 1898, and steady improvements to the design of diesel engines reduced their physical size and improved their power-to-weight ratios to a point where one could be mounted in a locomotive. Internal combustion engines only operate efficiently within a limited power band, and while low-power gasoline engines could be coupled to mechanical transmission (mechanics), transmissions, the more powerful diesel engines required the development of new forms of transmiss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EMD Dash 2
The EMD Dash 2 is a line of diesel-electric locomotives introduced by General Motors' Electro-Motive Division (EMD) on January 1, 1972. Designations of these models were those of the former models with "-2" added (e.g., the SD40 was replaced by the SD40-2). They retained the basic specifications of the earlier models in terms of power output and most other features, but introduced a number of improvements to the locomotives' internal systems, specifically the electrical systems and the trucks of the locomotives. These were intended to improve availability, efficiency, and ease of maintenance. One major improvement was a modularized electrical control cabinet, allowing maintenance by unit replacement and the use of common parts. These concepts were first tested on the DDA40X. Changes Minor externally visible changes common across the whole line include the following: * Modified trucks with damping struts. Four-axle trucks have damping struts on two diagonally opposite corners. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GE AC6000CW
The AC6000CW is a diesel locomotive, diesel electric locomotive built between 1995 and 2001 by GE Transportation. It is among the world's most powerful single-engined diesel locomotives. The locomotive was designed for extremely high horsepower needs, such as pulling heavy coal and ore trains. Most examples were purchased by two railroads: Union Pacific Railroad, Union Pacific and CSX Transportation, CSX. Design and production The AC6000CW was designed at the height of a horsepower race between the two major locomotive manufacturers, Electro-Motive Diesel, Electro-Motive Division of La Grange, Illinois with the SD90MAC, and GE Transportation of Erie, Pennsylvania with the AC6000CW, in the early to mid 1990s. The goal was . GE worked with MWM GmbH, Deutz-MWM of Germany in 1994 to design and construct the 7HDL engine for the locomotives. The first locomotive with a 7HDL was the "Green Machine" GE 6000, nicknamed for its green paint scheme. The first production models were also b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EMD SD70
The EMD SD70 is a series of diesel-electric locomotives produced by the US company Electro-Motive Diesel. This locomotive family is an extension and improvement of the EMD SD60, EMD SD60 series. Production commenced in late 1992 and since then over 5,700 units have been produced; most of these are the SD70M, SD70MAC, and SD70ACe models. While the majority of the production was ordered for use in North America, various models of the series have been used worldwide. All locomotives of this series are hood units with AAR wheel arrangement#C-C, C-C Bogie, trucks, except the SD70ACe-P4 and SD70MACH which have a AAR wheel arrangement#B1-1B, B1-1B wheel configuration, and the SD70ACe-BB, which has a AAR wheel arrangement#B+B-B+B, B+B-B+B wheel arrangement. Superseding the HT-C truck, a new bolsterless radial Radial steering truck, HTCR truck was fitted to all EMD SD70s built 1992–2002; in 2003 the non-radial HTSC truck (basically the HTCR made less costly by removing radial components) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
