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Diesel-mechanical
A diesel locomotive is a type of railway locomotive in which the prime mover 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. Early 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 transmissions, the more powerful diesel engines required the development of new forms of transmission. This is because clutches would need to be very large at these power levels and would not fit in a standard -wide locomotive frame, or wear too quickl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locomotive
A locomotive or engine is a rail transport vehicle that provides the Power (physics), motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, Motor coach (rail), motor coach, railcar or power car; the use of these self-propelled vehicles is increasingly common for passenger trains, but rare for freight (see CargoSprinter). Traditionally, locomotives pulled trains from the front. However, Push-pull train, push-pull operation has become common, where the train may have a locomotive (or locomotives) at the front, at the rear, or at each end. Most recently railroads have begun adopting DPU or distributed power. The front may have one or two locomotives followed by a mid-train locomotive that is controlled remotely from the lead unit. __TOC__ Etymology The word ''locomotive'' originates from the Latin language, Latin 'from a place', Ablative case, ablative of 'place', and the Medieval Latin 'causing mot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Mover (locomotive)
In engineering, a prime mover is an engine that converts fuel to useful work. In locomotives, the prime mover is thus the source of power for its propulsion. In an engine-generator set, the engine is the prime mover, as distinct from the generator. Definition In a diesel-mechanical locomotive, the prime mover is the diesel engine that is mechanically coupled to the driving wheels (drivers). In a diesel-electric locomotive, the prime mover is the diesel engine that rotates the main generator responsible for producing electricity to power the traction motors that are geared to the drivers. The prime mover can also be a gas turbine instead of a diesel engine. In either case, the generator, traction motors and interconnecting apparatus are considered to be the power transmission system and not part of the prime mover. A wired-electric or battery-electric locomotive has no on-board prime mover, instead relying on an external power station. Weight distribution The power unit rep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maybach
Maybach (, ) is a Automotive industry in Germany, German luxury car brand that exists today as a part of Mercedes-Benz. The original company was founded in 1909 by Wilhelm Maybach and his son Karl Maybach, originally as a subsidiary of ''Luftschiffbau Zeppelin GmbH'', and it was known as ''Luftfahrzeug-Motorenbau GmbH'' until 1999. In 1960, Maybach was acquired by Daimler-Benz. The name returned as a standalone Luxury vehicle#Ultra-luxury, ultra-luxury car brand in 2002, sharing significant components with Mercedes-Benz cars. After slow sales, Maybach ceased to be a standalone brand by 2013, and it became (in 2015) a sub-brand of Mercedes-Benz, which is owned by the Mercedes-Benz Group. , Daimler produces an Mercedes-Maybach S600, ultra-luxury edition of the Mercedes-Benz S-Class and Mercedes-Benz GLS-Class under the Mercedes-Maybach name. 1909–1940: Early history Wilhelm Maybach was technical director of the ''Daimler-Motoren-Gesellschaft'' (DMG) until he left in 1907. On 2 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woolwich
Woolwich () is a district in southeast London, England, within the Royal Borough of Greenwich. The district's location on the River Thames led to its status as an important naval, military and industrial area; a role that was maintained throughout the 16th to 20th centuries. After several decades of economic hardship and social deprivation, the area now has several large-scale urban renewal projects. Geography Woolwich is situated from Charing Cross. It has a long frontage to the south bank of the Thames river. From the riverside it rises up quickly along the northern slopes of Shooter's Hill towards the common, at and the ancient London–Dover Road, at . The ancient parish of Woolwich, more or less the present-day wards Woolwich Riverside and Woolwich Common, comprises . This included North Woolwich, which is now part of the London Borough of Newham. The ancient parishes of Plumstead and Eltham became part of the civil parish of Woolwich in 1930. Parts of the wards ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Arsenal
The Royal Arsenal, Woolwich is an establishment on the south bank of the River Thames in Woolwich in south-east London, England, that was used for the manufacture of armaments and ammunition, proofing, and explosives research for the British armed forces. It was originally known as the Woolwich Warren, having begun on land previously used as a domestic warren in the grounds of a Tudor house, Tower Place. Much of the initial history of the site is linked with that of the Office of Ordnance, which purchased the Warren in the late 17th century in order to expand an earlier base at Gun Wharf in Woolwich Dockyard. Over the next two centuries, as operations grew and innovations were pursued, the site expanded massively. At the time of the First World War the Arsenal covered and employed close to 80,000 people. Thereafter its operations were scaled down. It finally closed as a factory in 1967 and the Ministry of Defence moved out in 1994. Today the area, so long a secret enclave ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hull Docks
The Port of Hull is a port at the confluence of the River Hull and the Humber Estuary in Kingston upon Hull, in the East Riding of Yorkshire, England. Seaborne trade at the port can be traced to at least the 13th century, originally conducted mainly at the outfall of the River Hull, known as The Haven, or later as the Old Harbour. In 1773, the Hull Dock Company was formed and Hull's first dock built on land formerly occupied by Hull town walls. In the next half century a ring of docks was built around the Old Town on the site of the former fortifications, known as the Town Docks. The first was The Dock (1778), (or The Old Dock, known as Queen's Dock after 1855), followed by Humber Dock (1809) and Junction Dock (1829). An extension, Railway Dock (1846), was opened to serve the newly built Hull and Selby Railway. The first dock east of the river, Victoria Dock, opened in 1850. Docks along the banks of the Humber to the west were begun in 1862 with the construction of the We ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Priestman Brothers
Priestman Brothers was an engineering company based in Kingston upon Hull, England that manufactured diggers, dredgers, cranes and other industrial machinery. In the later 1800s the company also produced the Priestman Oil Engine, an early design of oil fuelled internal combustion engine. History Priestman family ownership (1870–1895) The company was founded in 1870; William Dent Priestman bought the Holderness Foundry with money from his father, a Leeds corn-miller. William's brother Samuel also joined the company. It is said the company's entry into the construction of dredging equipment began in 1876 when they were asked to construct machinery to recover lost gold from the sea west of the coast of Spain. No gold was found but the company's equipment proved useful for dredging of harbours and docks; the company pioneered the manufacture of steam powered cranes with grab (clamshell) buckets. From 1888 to 1904 the company produced various versions of the Priestman Oil Engine, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Thomson, 1st Baron Kelvin
William Thomson, 1st Baron Kelvin, (26 June 182417 December 1907) was a British mathematician, mathematical physicist and engineer born in Belfast. Professor of Natural Philosophy at the University of Glasgow for 53 years, he did important work in the mathematical analysis of electricity and formulation of the first and second laws of thermodynamics, and did much to unify the emerging discipline of physics in its contemporary form. He received the Royal Society's Copley Medal in 1883, was its president 1890–1895, and in 1892 was the first British scientist to be elevated to the House of Lords. Absolute temperatures are stated in units of kelvin in his honour. While the existence of a coldest possible temperature ( absolute zero) was known prior to his work, Kelvin is known for determining its correct value as approximately −273.15 degrees Celsius or −459.67 degrees Fahrenheit. The Joule–Thomson effect is also named in his honour. He worked closely with mathematics ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Dent Priestman
William Dent Priestman (23 August 1847 7 September 1936), born near Kingston upon Hull was a Quaker and engineering pioneer, inventor of the Priestman Oil Engine, and co-founder with his brother Samuel of the Priestman Brothers engineering company, manufacturers of cranes, winches and excavators. Priestman Brothers built the earliest recorded railway locomotive powered by an internal combustion engine. Biography William along with ten other offspring was the son of Leeds corn-miller (and latterly NER director) Samuel Priestman."Priestman, William Dent". Biographical Dictionary of the History of Technology He was educated at Bootham School in York, and then apprenticed at the Humber Iron Works, later at the North Eastern Railway (NER) in Gateshead. In 1869 he then joined the engineering company owned by William Armstrong. (William Armstrong & Company, later to become Armstrong Whitworth). His father purchased the Holderness Foundry in Hull, and he began to do business indepen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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