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Turbopumps
A turbopump is a fluid pump with two main components: a rotodynamic pump and a driving gas turbine, usually both mounted on the same shaft, or sometimes geared together. They were initially developed in Germany in the early 1940s. The most common purpose of a turbopump is to produce a high-pressure fluid for feeding a combustion chamber. While other use cases exist, they are most commonly found in liquid rocket engines. There are two common types of pumps used in turbopumps: a centrifugal pump, where the pumping is done by throwing fluid outward at high speed, or an axial-flow pump, where alternating rotating and static blades progressively raise the pressure of a fluid. Axial-flow pumps have small diameters but give relatively modest pressure increases. Although multiple compression stages are needed, axial flow pumps work well with low-density fluids. Centrifugal pumps are far more powerful for high-density fluids but require large diameters for low-density fluids. Histor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rocket Engine A4 V2
A rocket (from , and so named for its shape) is a vehicle that uses jet propulsion to accelerate without using any surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely from propellant carried within the vehicle; therefore a rocket can fly in the vacuum of space. Rockets work more efficiently in a vacuum and incur a loss of thrust due to the opposing pressure of the atmosphere. Multistage rockets are capable of attaining escape velocity from Earth and therefore can achieve unlimited maximum altitude. Compared with airbreathing engines, rockets are lightweight and powerful and capable of generating large accelerations. To control their flight, rockets rely on momentum, airfoils, auxiliary reaction engines, gimballed thrust, momentum wheels, deflection of the exhaust stream, propellant flow, spin, or gravity. Rockets for military and recreational uses date back to at least 13th-century China. Significan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
V-2 Rocket
The V2 (), with the technical name ''Aggregat (rocket family), Aggregat-4'' (A4), was the world's first long-range missile guidance, guided ballistic missile. The missile, powered by a liquid-propellant rocket engine, was developed during the Second World War in Nazi Germany as a "V-weapons, vengeance weapon" and assigned to attack Allies of World War II, Allied cities as retaliation for the Strategic bombing during World War II#The British later in the war, Allied bombings of German cities. The rocket also became the first artificial object to travel into space by crossing the Kármán line (edge of space) with the vertical launch of MW 18014 on 20 June 1944. Research of military use of long-range rockets began when the graduate studies of Wernher von Braun were noticed by the German Army. A series of prototypes culminated in the A4, which went to war as the . Beginning in September 1944, more than 3,000 were launched by the Wehrmacht against Allied targets, first London and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen Peroxide
Hydrogen peroxide is a chemical compound with the formula . In its pure form, it is a very pale blue liquid that is slightly more viscosity, viscous than Properties of water, water. It is used as an oxidizer, bleaching agent, and antiseptic, usually as a dilute solution (3%–6% by weight) in water for consumer use and in higher concentrations for industrial use. Concentrated hydrogen peroxide, or "high-test peroxide", decomposes explosively when heated and has been used as both a monopropellant and an oxidizer in rocketry. Hydrogen peroxide is a reactive oxygen species and the simplest peroxide, a compound having an oxygen–oxygen single bond. It decomposes slowly into water and elemental oxygen when exposed to light, and rapidly in the presence of organic or reactive compounds. It is typically stored with a Stabilizer (chemistry), stabilizer in a weakly acidic solution in an opaque bottle. Hydrogen peroxide is found in biological systems including the human body. Enzymes that u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KSB Company
KSB SE & Co. KGaA is a German multinational manufacturer of pumps, valves with headquarters in Frankenthal (Pfalz), Germany. The KSB Group has manufacturing plants, sales and marketing organizations, and service operations on every continent except Antarctica. 1896-1945 The mechanical engineer, Johannes Klein, received a patent in 1871 on the boiler feed apparatus he invented, and founded Frankenthaler Maschinen- & Armatur-Fabrik Klein, Schanzlin & Becker with Friedrich Schanzlin and Jakob Becker. From 1887 the company operated as an Aktiengesellschaft (public limited company) with Johannes Klein at its head. KSB’s first subsidiary outside Germany was founded in Great Britain in 1896, managed by Jacob Klein, the younger brother of Johannes Klein. Between 1924 and 1934 KSB acquired further plants in Germany and set up European subsidiaries. KSB Compañía Sudamericana de Bombas in Argentina was KSB's first subsidiary in the Americas and commenced operations in 1941. During th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order Of Magnitude
In a ratio scale based on powers of ten, the order of magnitude is a measure of the nearness of two figures. Two numbers are "within an order of magnitude" of each other if their ratio is between 1/10 and 10. In other words, the two numbers are within about a factor of 10 of each other. For example, 1 and 1.02 are within an order of magnitude. So are 1 and 2, 1 and 9, or 1 and 0.2. However, 1 and 15 are not within an order of magnitude, since their ratio is 15/1 = 15 > 10. The reciprocal ratio, 1/15, is less than 0.1, so the same result is obtained. Differences in order of magnitude can be measured on a base-10 logarithmic scale in " decades" (i.e., factors of ten). For example, there is one order of magnitude between 2 and 20, and two orders of magnitude between 2 and 200. Each division or multiplication by 10 is called an order of magnitude. This phrasing helps quickly express the difference in scale between 2 and 2,000,000: they differ by 6 orders of magnitude. Examples o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jenbach
Jenbach is a municipality in the district of Schwaz in the Austrian state of Tyrol. Etymology Many inhabitants of Jenbach believe that the name "Jenbach" is derived from "Jenseits des Baches", which means "Beyond the brook", however earlier versions of the name, for instance "Umbach" suggest that it could also be derived from "Um den Bach erum, which means "Around the brook". This is consistent with Jenbach's history as a village built around the Kasbach. The inhabitants of Jenbach are called "Jenbacher". People speaking the Bavarian dialect tend to pronounce "Jenbach" as "Jembåch". Geography Neighbouring municipalities Buch bei Jenbach, Eben am Achensee, Stans, Wiesing. History The earliest dwellings in Jenbach date back to the end of the early Bronze Age and the early La Tène culture. Jenbach was first officially named in a document of the year of 1269 as "Ymbach". From 1410 onwards the Fugger constructed furnaces in order to process the silver and copper ore du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Test Stand VII
Test Stand VII (, P-7) was the principal V-2 rocket testing facility at Peenemünde Airfield and was capable of static firing rocket motors with up to 200 tons of thrust. Notable events at the site include the first successful V-2 launch on 3 October 1942, visits by German military leaders, and Allied reconnaissance overflights and bombing. Description Two distinguishing features of P-7 were the 670-yard-long elliptical high-sloped sand wall and the wide concrete-lined trench (flame pit) with a large symmetrical water-cooled flame deflector of molybdenum-steel pipes. The concrete trench, nearly wide with concrete walls, sloped gradually away from each side of the flame deflector to a depth of , rising again symmetrically toward the side of the arena. Beside the flame pit was a long underground room where diameter delivery pipes were housed to route cooling water at 120 gallon per second from three huge pumps in the pumphouse to the flame deflector in the pit. While the ellip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M-1 Rocket Turbopump
M1, M01 or M-1 may refer to: Arts, entertainment & media * M-1 (rapper), one half of hip hop duo Dead Prez * Korg M1, a keyboard synthesizer * Leica M1, a 1959 35 mm camera model * Olympus OM-1, a 1972 manually operated 35mm single-lens reflex camera * M1 (TV channel), news channel of the Hungarian MTVA * M-1 (Lithuanian radio station) * M1 (Ukraine), a television channel * M1 (Russian TV channel) Economics and finance * M1 (money supply measure), in economics, a measure of the money supply * M1 Finance, an online financial services company Military equipment Vehicles US Armed Forces * M1 Abrams, a main battle tank * M1 armored car * M1 combat car, an early tank * M1 light tractor * M1 medium tractor * M1 heavy tractor Other * Bristol M.1, a 1916 British fighter aircraft * (M1), a WWI Royal Navy monitor * (1919), an early British submarine * , a Swedish Navy mine sweeper * , a Swedish Royal Navy mine layer Weapons US Armed Forces * 120 mm gun M1, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert H
The name Robert is an ancient Germanic given name, from Proto-Germanic "fame" and "bright" (''Hrōþiberhtaz''). Compare Old Dutch ''Robrecht'' and Old High German ''Hrodebert'' (a compound of ''Hrōþ, Hruod'' () "fame, glory, honour, praise, renown, godlike" and ''berht'' "bright, light, shining"). It is the second most frequently used given name of ancient Germanic origin.Reaney & Wilson, 1997. ''Dictionary of English Surnames''. Oxford University Press. It is also in use Robert (surname), as a surname. Another commonly used form of the name is Rupert (name), Rupert. After becoming widely used in Continental Europe, the name entered England in its Old French form ''Robert'', where an Old English cognate form (''Hrēodbēorht'', ''Hrodberht'', ''Hrēodbēorð'', ''Hrœdbœrð'', ''Hrœdberð'', ''Hrōðberχtŕ'') had existed before the Norman Conquest. The feminine version is Roberta (given name), Roberta. The Italian, Portuguese, and Spanish form is Roberto (given name), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Thiel
Walter Thiel (3 March 1910, Breslau – 17 August 1943, Karlshagen, near Peenemünde) was a German rocket scientist. Thiel provided the decisive ideas for the A4 ( V-2) rocket engine and his research enabled rockets to head towards space. Life Walter Erich Oskar Thiel was born on 3 March 1910 in the Silesian city of Breslau, as second son of Oskar Thiel (civil servant at the German Post) and Elsa (Prinz) Thiel. In 1929 he passed all his school graduation exams (''Abitur'') with the highest possible grade A. After graduation he studied chemistry at the Technische Hochschule zu Breslau (now Wrocław University of Technology). Due to his excellent work he was exempt from study fees as of the third semester. In summer semester of 1931 he passed the preliminary examination with excellence. In winter semester 1933 he passed all 7 diploma exams with the highest possible grade A and he became Dipl.-Ing. (chem.). In 1934 his thesis "Über die Addition von Verbindungen mit stark pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerojet
Aerojet was an American rocket and missile propulsion manufacturer based primarily in Rancho Cordova, California, with divisions in Redmond, Washington, Orange and Gainesville in Virginia, and Camden, Arkansas. Aerojet was owned by GenCorp, Inc., In 2013, Aerojet was merged by GenCorp with the former Pratt & Whitney Rocketdyne to form Aerojet Rocketdyne. History Aerojet developed from a 1936 meeting hosted by Theodore von Kármán at his home. Joining von Kármán, who was at the time director of Guggenheim Aeronautical Laboratory at the California Institute of Technology, were a number of Caltech professors and students, including rocket scientist and astrophysicist Fritz Zwicky and explosives expert Jack Parsons, all of whom were interested in the topic of spaceflight. The group continued to occasionally meet, but its activities were limited to discussions rather than experimentation. Their first design was tested on August 16, 1941, consisting of a small cylindrical s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
