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China Railways DFH Shunting Locomotives
The China Railways "Dongfang Hong" diesel-hydraulic locomotive classes DFH2, DFH5, DFH6, and DFH7, built from the 1970s to 1990s, were all used as shunters on the Chinese railway network. The use of diesel-hydraulic shunters has fallen out of favour on the Chinese rail network, with diesel-electric locomotives being used. However, diesel-hydraulic machines continued to be produced for industrial railways – mainly the China Railways GK classes.DFH5 东方红5 , ''www.railwaysofchina.com'' The DFH21 class is a meter gauge version of the DFH2, and was used on the Yunnan–Vietnam Railway for both passenger and freight services; the same machines are used on the Vietnam Railways where they are known as the D10H. China Railways standard gauge DFH2 The DFH2 was originally designed by Sifang locomotive w ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel-hydraulic
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] |
Shunting Locomotives
A switcher locomotive (American English), shunter locomotive (British English), station pilot (British English), or shifter locomotive (Pennsylvania Railroad terminology) is a locomotive used for maneuvering railway vehicles over short distances. Switchers do not usually move trains over long distances. Instead, they typically assemble trains in order for another locomotive to take over. Switchers often operate in a railyard or make short transfer runs. They may serve as the primary motive power on short branch lines or switching and terminal railroads. A hybrid type known as a road switcher can both shunt and haul trains. Switchers are optimized for their role, being relatively low-powered but with a high starting tractive effort for getting heavy cars rolling quickly. Switchers are geared to produce high torque but are restricted to low top speeds and have small diameter driving wheels. Switchers tend to be durable and to remain in service for a long time, such as the Swe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Railway Locomotives Introduced In 1973
Rail transport (also known as train transport) is a means of transport using wheeled vehicles running in tracks, which usually consist of two parallel steel rails. Rail transport is one of the two primary means of land transport, next to road transport. It is used for about 8% of passenger and freight transport globally, thanks to its energy efficiency and potentially high speed.Rolling stock on rails generally encounters lower frictional resistance than rubber-tyred road vehicles, allowing rail cars to be coupled into longer trains. Power is usually provided by diesel or electric locomotives. While railway transport is capital-intensive and less flexible than road transport, it can carry heavy loads of passengers and cargo with greater energy efficiency and safety. Precursors of railways driven by human or animal power have existed since antiquity, but modern rail transport began with the invention of the steam locomotive in the United Kingdom at the beginning of the 19th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metre-gauge Diesel Locomotives
Metre-gauge railways ( US: meter-gauge railways) are narrow-gauge railways with track gauge of or 1 metre. Metre gauge is used in around of tracks around the world. It was used by several European colonial powers including France, Britain and Germany in their colonies. In Europe, large metre-gauge networks remain in use in Switzerland, Spain and many European towns with urban trams, but most metre-gauge local railways in France, Germany and Belgium closed down in the mid-20th century, although some still remain. With the revival of urban rail transport, metre-gauge light metros were built in some cities. The slightly-wider gauge is used in Sofia, Bulgaria. Another similar gauge is . __TOC__ Examples of metre-gauge See also * Italian metre gauge * Narrow-gauge railways A narrow-gauge railway (narrow-gauge railroad in the US) is a railway with a track gauge (distance between the rails) narrower than . Most narrow-gauge railways are between and . Since narrow-gaug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standard-gauge Locomotives Of China
A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), international gauge, UIC gauge, uniform gauge, normal gauge in Europe, and SGR in East Africa. It is the most widely used track gauge around the world, with about 55% of the lines in the world using it. All high-speed rail lines use standard gauge except those in Russia, Finland, Uzbekistan, and some line sections in Spain. The distance between the inside edges of the heads of the rails is defined to be 1,435 mm except in the United States, Canada, and on some heritage British lines, where it is defined in U.S. customary/ British Imperial units as exactly "four feet eight and one half inches", which is equivalent to 1,435.1mm. History As railways developed and expanded, one of the key issues was the track gauge (the distance, or width, between the inner sides of the rail heads) to be used, as the wheels of the rolling stock (locomoti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
B-B Locomotives
BB, Bb, or similar, may refer to: Arts and entertainment * BB numbers, in the catalogue of works by Béla Bartók * "BB", a chant supporting Big Brother in ''Nineteen Eighty-Four'' * ''BB'', a 2017 album by Mod Sun * BB, a character in '' Beast Wars II: Super Life-Form Transformers'' * Beyond Birthday, a character from the novel '' Death Note Another Note: The Los Angeles BB Murder Cases'' * ''Big Brother'' (franchise), a TV reality competition * BB, production code for 1966 ''Doctor Who'' serial '' The War Machines'' Businesses and organizations * BB Bloggingsbooks, an imprint of OmniScriptum * BB Microlight, a Hungarian aircraft manufacturer * Banco do Brasil, a Brazilian financial services company * Bavarian Peasants' League (''Bayerischer Bauernbund''), a former German political party * BlackBerry Limited (stock ticker BB), Canadian technology company * Borderland Beat, a news blog covering the Mexican drug war * Boys' Brigade, a Christian youth organization P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railways DFH Mainline Locomotives
The China Railways DFH1 () was a type of 4-axle B'B' single-cab diesel-hydraulic locomotive used on mainline passenger services; the DFH3 () was a later development of a similar design but with two driving cabs. The China Railways DFH4 () was a 6-axle high-powered freight and passenger locomotive, it did not reach mass production. China Railways DFH1 The first prototype unit (NY1) (''neiran yeli chuandong'' meaning diesel-hydraulic transmission) was produced in 1959 at Sifang locomotive works, and given the name 'Weixing'. Locomotive design was similar to German diesel-hydraulic machines such as the DB Class V 200 - the machine had a pair of high-speed diesel engines, each driving a separate hydraulic torque converter based transmission resulting in low mass compared to contemporary diesel-electric machines. Series production began in 1964. The locomotive was used for passenger trains. The locomotives could be worked in multiple, and were often used in this way, with a cab at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
China Railway Museum
The China Railway Museum () is a Chinese museum preserving locomotives that have operated on the railways of the People's Republic of China. The museum offers a total exhibition space of and eight exhibition tracks. The museum is located in Chaoyang District, Beijing, Chaoyang District of Beijing, some northeast of downtown Beijing, inside the circular test track that is part of the . It also has a branch in downtown Beijing, in the former Zhengyangmen East Railway Station near Tian'anmen Square. History The China Railway Museum has its origins in the 1950s when the Ministry of Railways (China), Ministry of Railways (MOR) created a temporary exhibit for the Economic Achievements Exhibition in Beijing. This exhibition, which was held by the National Economic Development Committee, celebrated the 10th anniversary of the establishment of the China, People's Republic of China. The MOR then founded the Central Technical Library in 1958 to promote scientific and technological adv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caterpillar Inc
Caterpillar Inc., also known as Cat, is an American construction, mining and other engineering equipment manufacturer. The company is the world's largest manufacturer of construction equipment. In 2018, Caterpillar was ranked number 73 on the ''Fortune'' 500 list and number 265 on the Global ''Fortune'' 500 list. Caterpillar stock is a component of the Dow Jones Industrial Average. Caterpillar Inc. traces its origins to the 1925 merger of the Holt Manufacturing Company and the C. L. Best Tractor Company, creating a new entity, California-based Caterpillar Tractor Company. In 1986, the company reorganized itself as a Delaware corporation under the current name, Caterpillar Inc. It announced in January 2017 that over the course of that year, it would relocate its headquarters from Peoria, Illinois, to Deerfield, Illinois, scrapping plans from 2015 of building an $800 million new headquarters complex in downtown Peoria. Its headquarters are located in Irving, Texas, since 2022 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chenggong District
Chenggong District () is one of seven districts of the prefecture-level city of Kunming, the capital of Yunnan Province, Southwest China, situated on east bank of the Dian Lake. The name Chenggong is a transliteration of the word in Yi language for a basin where rice is grown. Geography Chenggong is located in the southeast of Kunming and borders Yiliang County, Kunming to the east, Chengjiang and Jinning District to the south, Xishan District to the west and Guandu District to the north. History It was first established in 1275. In 1961 it came under jurisdiction of Kunming city. In 2003 Chenggong was designated as a development zone of Kunming. The district was created from the dissolution of the former ''Chenggong County'' () by the State Council on May 20, 2011. Chenggong is the chief zone for Kunming, the downtown of which is almost a 20-minute drive away. It is the site of the new Kunming City Hall, and new campuses for Yunnan University and Yunnan Normal Univer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
