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THE HISTORICAL EVOLUTION OF TURBOMACHINERY

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THE HISTORICAL EVOLUTION OF TURBOMACHINERY ( the-historical-evolution-turbomachinery )

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THE HISTORICAL EVOLUTION OF TURBOMACHINERY 299 Figure 49. Sectioned View of the Bristol Theseus Axial Flow Turboprop Engine. (Geoffrey Smith, 1946) Figure 47. Vaporizer Type Combustor and Shell Type Combustor with Atomizer. (Meher-Homji, 1997; Courtesy ASME) Figure 48. Combustor and Jet Pipe of Whittle W.1X Engine. developments ended up under Heinkel, but as will be seen later, despite a preeminent position in the area of turbojet engine and jet aircraft development, Heinkel could not capitalize on his position as a jet age pioneer. Engine Development Sponsored by Ernst Heinkel Von Ohain developed the idea of his jet engine while he was a doctoral student at the University of Gottingen. The 25-year-old Ohain was hired by Heinkel and soon headed Heinkel’s engine development work. His pioneering work allowed Heinkel to fly the world’s first jet airplane. Heinkel proceeded with engine development on his own, but ultimately his programs came under government control. Figure 50. De Havilland Goblin Engine (Rated at 3000 Lb Thrust, 10,200 RPM, Weight 1550 Lb) Used on the Vampire Jet Fighter. Unlike the Whittle Designs, It Used a Single-Sided Centrifugal Compressor. (Geoffrey Smith, 1946) Figure 51. Six Inch Diameter Experimental Multistage Axial Flow Compressor, “Anne,” First Run in 1938. (Tip speed 750 fps, 28,600 rpm.) (Constant, 1945; Courtesy IMechE, UK) Turbojet Engine Development Initiated at Junkers Aeroplane Company During 1936 and 1939, engineers at another aircraft manufacturer, Junkers Aeroplane Company, were working on jet engines under the guidance of Professor Herbert Wagner. Wagner, a brilliant airframe designer, was well-versed in steam turbine design and wanted to develop jet engines that, he felt, would make Junkers a preeminent aircraft company. By 1938, Junkers had 30 designers and draftsmen working on the project at their Magdeburg plant and were in the process of developing a demonstrator, which

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