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1 центробежен компресор
centrifugal compressorcentrifugal compressorsradial-flow compressorradial-flow compressorsradial compressorradial compressorsБългарски-Angleščina политехнически речник > центробежен компресор
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2 Ohain, Hans Joachim Pabst von
SUBJECT AREA: Aerospace[br]b. 14 December 1911 Dessau, Germany[br]German engineer who designed the first jet engine to power an aeroplane successfully.[br]Von Ohain studied engineering at the University of Göttingen, where he carried out research on gas-turbine engines, and centrifugal compressors in particular. In 1935 he patented a design for a jet engine (in Britain, Frank Whittle patented his jet-engine design in 1930). Von Ohain was recruited by the Heinkel company in 1936 to develop an engine for a jet aircraft. Ernst Heinkel was impressed by von Ohain's ideas and gave the project a high priority. The first engine was bench tested in September 1937. A more powerful version was developed and tested in air, suspended beneath a Heinkel dive-bomber, during the spring of 1939. A new airframe was designed to house the revolutionary power plant and designated the Heinkel He 178. A short flight was made on 24 August 1939 and the first recognized flight on 27 August. This important achievement received only a lukewarm response from the German authorities. Von Ohain's turbojet engine had a centrifugal compressor and developed a thrust of 380 kg (837 lb). An improved, more powerful, engine was developed and installed in a new twin-engined fighter design, the He 280. This flew on 2 April 1941 but never progressed beyond the prototype stage. By this time two other German companies, BMW and Junkers, were constructing successful turbojets with axial compressors: luckily for the Allies, Hitler was reluctant to pour his hard-pressed resources into this new breed of jet fighters. After the war, von Ohain emigrated to the United States and worked for the Air Force there.[br]Bibliography1929, "The evolution and future of aeropropulsion system", The Jet Age. 40 Years of Jet Aviation, Washington, DC: National Air \& Space Museum, Smithsonian Institution.Further ReadingVon Ohain's work is described in many books covering the history of aviation, and aero engines in particular, for example: R.Schlaifer and S.D.Heron, 1950, Development of Aircraft Engines and fuels, Boston. G.G.Smith, 1955, Gas Turbines and Jet Propulsion.Grover Heiman, 1963, Jet Pioneers.JDSBiographical history of technology > Ohain, Hans Joachim Pabst von
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3 Rateau, Auguste Camille-Edmond
[br]b. 13 October 1863 Royan, Franced. 13 January 1930 Neuilly-sur-Seine, France[br]French constructor of turbines, inventor of the turbo compressor and a centrifugal fan for mine ventilation.[br]A don of the Ecole Polytechnique and the Ecole Supérieure des Mines in Paris, Rateau joined the French Corps des Mines in 1887. Between 1888 and 1898 he taught applied mechanics and electro technics at the Ecole des Mines in St-Etienne. Trying to apply the results of his research to practise, he became into contact with commercial firms, before he was appointed Professor of Industrial Electricity at the Ecole Supérieure des Mines in Paris in 1902. He held this position until 1910, although he founded the Société Anonyme Rateau in Paris in 1903 which by the time of his death had subsidiaries in most of the industrial centres of Europe. By the middle of the nineteenth century, when the increasing problems of ventilation in coal mines had become evident and in many countries had led to several unsatisfactory mechanical constructions, Rateau concentrated on this problem soon after he began working in St-Etienne. The result of his research was the design of a centrifugal fan in 1887 with which he established the principles of mechanical ventilation on a general basis that led to future developments and helped, together with the ventilator invented by Capell in England, to pave the way for the use of electricity in mine ventilation.Rateau continued the study of fluid mechanics and the applications of rotating engines, and after he had published widely on this subject he began to construct many steam turbines, centrifugal compressors and centrifugal pumps. The multicellular Rateau turbine of 1901 became the prototype for many others constructors. During the First World War, when he was very active in the French armaments industry, he developed the invention of the automatic supercharger for aircraft engines and later diesel engines.[br]Principal Honours and DistinctionsAcadémie des Sciences, Prix Fourneyron 1899, Prix Poncelet 1911, Member 1918.Bibliography1892, Considérations sur les turbo-machines et en particulier sur les ventilateurs, St- Etienne.1900, Traité des turbo-machines, Paris.1907, Ventilateurs centrifuges à haute pression, Paris.1908. Développement des turbines à vapeur d'échappement, Paris. 1917, Notice sur les travaux scientifiques et techniques, Paris.Further ReadingH.H.Suplee, 1930, obituary, Mechanical Engineering 52:570–1.L.Leprince-Ringuet (ed.), 1951, Les inventeurs célèbres, Geneva: 151–2 (a comprehensive description of his life and the importance of his turbines).WKBiographical history of technology > Rateau, Auguste Camille-Edmond
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4 эксплуатируемый в настоящее время
Эксплуатируемый в настоящее время-- The largest oxygen compressors currently in operation are 2250 t/a centrifugal compressors.Русско-английский научно-технический словарь переводчика > эксплуатируемый в настоящее время
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5 забирать
•From here the coal is picked up by the rear conveyor.
II•Centrifugal compressors take in fluid at the impeller eye.
Русско-английский научно-технический словарь переводчика > забирать
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6 забирать
•From here the coal is picked up by the rear conveyor.
II•Centrifugal compressors take in fluid at the impeller eye.
* * *Русско-английский научно-технический словарь переводчика > забирать
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7 принимая это решение, мы понимали, что
Принимая это решение, мы понимали, что-- In making this decision, it was recognized that a gas turbine of this size driving two centrifugal compressors in tandem had not been attempted before.Русско-английский научно-технический словарь переводчика > принимая это решение, мы понимали, что
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8 иметь меньший диаметр, чем
•Axial compressors are smaller in diameter than centrifugal ones.
Русско-английский научно-технический словарь переводчика > иметь меньший диаметр, чем
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9 обычно бывает
•Axial compressors tend (or are apt) to be longer than centrifugal ones.
Русско-английский научно-технический словарь переводчика > обычно бывает
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10 иметь меньший диаметр, чем
•Axial compressors are smaller in diameter than centrifugal ones.
Русско-английский научно-технический словарь переводчика > иметь меньший диаметр, чем
См. также в других словарях:
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