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Gas Turbine Train
A gas turbine locomotive is a type of railway locomotive in which the prime mover (locomotive), prime mover is a gas turbine. Several types of gas turbine locomotive have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels (drivers). A gas turbine train typically consists of two power cars (one at each end of the train), and one or more intermediate passenger car (rail), passenger cars. A gas turbine offers some advantages over a piston engine. There are few moving parts, decreasing the need for lubrication and potentially reducing maintenance costs, and the power-to-weight ratio is much higher. A turbine of a given power output is also physically smaller than an equally powerful piston engine, so that a locomotive can be extremely powerful without needing to be inordinately large. However, a gas turbine's power output and efficiency both drop dramatically with rotational speed, unlike a piston engine, which has a comparativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Turbine Locomotive 1149
Gas is a state of matter that has neither a fixed volume nor a fixed shape and is a compressibility, compressible fluid. A ''pure gas'' is made up of individual atoms (e.g. a noble gas like neon) or molecules of either a single type of atom (chemical element, elements such as oxygen) or from different atoms (chemical compound, compounds such as carbon dioxide). A ''gas mixture'', such as air, contains a variety of pure gases. What distinguishes gases from liquids and solids is the vast separation of the individual gas particles. This separation can make some gases invisible to the human observer. The gaseous state of matter occurs between the liquid and plasma states, the latter of which provides the upper-temperature boundary for gases. Bounding the lower end of the temperature scale lie degenerative quantum gases which are gaining increasing attention. High-density atomic gases super-cooled to very low temperatures are classified by their statistical behavior as either Bose ga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Generator
A gas generator is a device for generating gas. A gas generator may create gas by a chemical reaction or from a solid or liquid source, when storing a pressurized gas is undesirable or impractical. The term often refers to a device that uses a rocket propellant to generate large quantities of gas. The gas is typically used to drive a turbine rather than to provide thrust as in a rocket engine. Gas generators of this type are used to power turbopumps in rocket engines, in a gas-generator cycle. It is also used by some auxiliary power units to power electric generators and hydraulic pumps. Another common use of the term is in the industrial gases industry, where gas generators are used to produce gaseous chemicals for sale. For example, the chemical oxygen generator, which delivers breathable oxygen at a controlled rate over a prolonged period. During World War II, portable gas generators that converted Coke (fuel), coke to producer gas were used to power vehicles as a way o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Czechoslovakia
Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland became part of Nazi Germany, while the country lost further territories to First Vienna Award, Hungary and Trans-Olza, Poland (the territories of southern Slovakia with a predominantly Hungarian population to Hungary and Zaolzie with a predominantly Polish population to Poland). Between 1939 and 1945, the state ceased to exist, as Slovak state, Slovakia proclaimed its independence and Carpathian Ruthenia became part of Kingdom of Hungary (1920–1946), Hungary, while the German Protectorate of Bohemia and Moravia was proclaimed in the remainder of the Czech Lands. In 1939, after the outbreak of World War II, former Czechoslovak President Edvard Beneš formed Czechoslovak government-in-exile, a government-in-exile and sought recognition from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kværner
Kværner was a Norwegian engineering and construction services company that existed between 1853 and 2005. During its initial decades, the firm was involved in the manufacture of cast iron stoves and hydroelectric turbines. The turbine business was Kværner's leading product throughout the first half of the twentieth century, although it had also branched out into the production of bridges, cranes, and pumps. Kværner underwent a spree of international acquisitions during the 1990s, which included Govan Shipbuilders, Götaverken, Trafalgar House, Vyborg Shipyard; its headquarters were also relocated from Oslo to London during this decade. The heavy debt burden built up by acquiring these businesses, some of which were actually unprofitable, jeopardised the company's continued existence by the start of the twenty-first century. Efforts to stabilise the company included the selling off of Cunard Line and its construction division, as well as the receipt of financial suppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kharkov Locomotive Works
The Malyshev Factory (; abbreviated ), formerly the Kharkov Locomotive Factory (, ), is a state-owned manufacturer of heavy equipment in Kharkiv, Ukraine. It was named after the Soviet politician Vyacheslav Malyshev. The factory is part of the state concern, Ukroboronprom. It produces diesel engines, farm machinery, coal mining, sugar refining, and wind farm equipment, but is best known for its production of Soviet tanks, including the BT tank series of fast tanks, the famous T-34 of the Second World War, the Cold War T-64 and T-80, and their modern Ukrainian successor, the T-84. The factory is closely associated with the Morozov Design Bureau (KMDB), designer of military armoured fighting vehicles and the Kharkiv Engine Design Bureau (KEDB) for engines. In 1958, it developed the Kharkovchanka, an off-road vehicle which reached the South Pole the following year. At its height during the Soviet era, the factory employed 60,000 of Kharkiv's 1.5 million inhabitants. , 5,000 peopl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raul Pateras Pescara
Raul, Raúl, Raül, and Raüll are forms of a common first name in Italian, Portuguese, Romanian, Spanish, Galician, Asturian, Basque, Aragonese, and Catalan. The name is cognate of the Anglo-Germanic given name Ralph or Rudolph and the French Raoul, and is derived from Old English Rædwulf through Radulf.Entry 'Raul' in th inforpedia.pt website. Accessed on 2023-03-19. It is also a popular common boy name in . The name is usually spelled "Raul" in Portuguese, Italian, and Romanian; [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sampson Low
Sampson Low (18 November 1797 – 16 April 1886) was a bookseller and publisher in London in the 19th century. Early years Born in London in 1797, he was the son of Sampson Low, printer and publisher, of Berwick Street, Soho. He served a short apprenticeship with Lionel Booth, the proprietor of a circulating library, and spent a few years in the house of Longman & Co. Low began his own business in 1819 at 42 Lamb's Conduit Street, as a bookseller and stationer, with a circulating library attached. His reading-room was the resort of many literary men, lawyers, and politicians. Sampson Low, Son and Company In 1848, Low and his eldest son Sampson Jr. opened a publishing office at the corner of Red Lion Court, Fleet Street. In 1852 they moved to 47 (and later to 14) Ludgate Hill, where, with the aid of David Bogue (bookseller), David Bogue, an American department was opened. In 1856 Edward Marston became a partner, and Bogue retired. The firm removed in 1867 to 188 Fleet Street, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opposed Piston
An opposed-piston engine is a piston engine in which each cylinder has a piston at both ends, and no cylinder head. Petrol and diesel opposed-piston engines have been used mostly in large applications such as ships, military tanks, and factories. Current manufacturers of opposed-piston engines include Cummins, Achates Power, and Fairbanks-Morse Defense (FMDefense). Design Compared to contemporary two-stroke engines, which use a conventional design of one piston per cylinder, the advantages of the opposed-piston engine are: * Eliminating the cylinder head and valve-train, which reduces weight, complexity, cost, heat loss, and friction loss of the engine. * Creating a uniflow-scavenged movement of gas through the combustion chamber, which avoided the drawbacks originally associated with the crossflow-scavenged designs of early piston-engines. * A reduced height of the engine The main drawback was that the two opposing pistons had to be geared together. This added weig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diesel Engine
The diesel engine, named after the German engineer Rudolf Diesel, is an internal combustion engine in which Combustion, ignition of diesel fuel is caused by the elevated temperature of the air in the cylinder due to Mechanics, mechanical Compression (physics), compression; thus, the diesel engine is called a compression-ignition engine (CI engine). This contrasts with engines using spark plug-ignition of the air-fuel mixture, such as a petrol engine (gasoline engine) or a gas engine (using a gaseous fuel like natural gas or liquefied petroleum gas). Introduction Diesel engines work by compressing only air, or air combined with residual combustion gases from the exhaust (known as exhaust gas recirculation, "EGR"). Air is inducted into the chamber during the intake stroke, and compressed during the compression stroke. This increases air temperature inside the Cylinder (engine), cylinder so that atomised diesel fuel injected into the combustion chamber ignites. The torque a dies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-stroke
A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston, one up and one down, in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two crankshaft revolutions to complete a power cycle. During the stroke from bottom dead center to top dead center, the end of the exhaust/intake (or scavenging) is completed along with the compression of the mixture. The second stroke encompasses the combustion of the mixture, the expansion of the burnt mixture and, near bottom dead center, the beginning of the scavenging flows. Two-stroke engines often have a higher power-to-weight ratio than a four-stroke engine, since their power stroke occurs twice as often. Two-stroke engines can also have fewer moving parts, and thus be cheaper to manufacture and weigh less. In countries and regions with stringent emissions regulation, two-stroke engines have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free-piston Engine
A free-piston engine is a linear, 'crankless' internal combustion engine, in which the piston motion is not controlled by a crankshaft but determined by the interaction of forces from the combustion chamber gases, a rebound device (e.g., a piston in a closed cylinder) and a load device (e.g. a gas compressor or a linear alternator). The purpose of all such piston engines is to generate power. In the free-piston engine, this power is not delivered to a crankshaft but is instead extracted through either exhaust gas pressure driving a turbine, through driving a linear load such as an air compressor for pneumatic power, or by incorporating a linear alternator directly into the pistons to produce electrical power. The basic configuration of free-piston engines is commonly known as single piston, dual piston or opposed pistons, referring to the number of combustion cylinders. The free-piston engine is usually restricted to the two-stroke operating principle, since a power stroke is re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Raúl Pateras Pescara
Raúl Pateras Pescara de Castelluccio (1890 – 1966), marquis of Pateras-Pescara, was an engineer, lawyer and inventor from Argentina who specialized in automobiles, helicopters and free-piston engines. Pescara is credited for being one of the first people to successfully utilize cyclic pitch, as well as pioneering the use of autorotation for the safe landing of a damaged helicopter. Pescara also set a world record (at the time) in 1924 for achieving a speed of in a helicopter. Biography Pescara was born in Buenos Aires and at the beginning of the 20th century, his family left Argentina to return to Europe. Aircraft In 1911, using a workshop that Pescara was involved with, Gustave Eiffel tested a scale model (1:20) of a seaplane (monoplane design) named the ''Pateras Pescara'', designed by Pescara and Italian engineer Alessandro Guidoni, in a wind tunnel. In 1912, the Italian Ministry of the Navy commissioned Guidoni to build a torpedo bomber based on the Pescara model ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
