Analysis of Performance of Jet Engine From Characteristics of Components 1: Aerodynamic and Matching Characteristics of Turbine Component Determined With Cold Air Page: 3 of 18
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ANALYSIS OF PERFORMANCE OF JET ENGINE FROM CHARACTERISTICS OF COMPONENTS-I1
Construction.-The turbine consists of two stages of rotor
blades and three stages of stator blades. Reaction in both
the rotor stages may be increased by the use of a final stator
stage, which also insures efficient jet-nozzle operation over
a wide range of turbine and compressor operating conditions
by eliminating the rotation of the discharged gas. A down-
stream view of the first ring of-stator blades is shown in
figure 2. The second ring (upstream view) and third ring
of stators (downstream view) are shown in figures 3 and 4,
respectively. The rotor is shown in figure 5. All rotor and
stator blades had an inner diameter of 9 inches and an outer
diameter of 14 inches. All blades had a radial tip clearance
of 0.035 inch. The rotor blades are fastened to the wheel
by a fir-tree-type blade base. For this investigation, a set
of sleeve bearings was used.FtARL.E L -Third stator ting of NACA two-stage turbine. Downstream view
S- Coupling
Fm car 3.-second stator ring of NACA two-stage turbine. Upstream view
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399
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_ . - --FIGURE 5.--Rotor of NACA two-stage turbine
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Goldstein, Arthur W. Analysis of Performance of Jet Engine From Characteristics of Components 1: Aerodynamic and Matching Characteristics of Turbine Component Determined With Cold Air, report, June 6, 1947; (https://digital.library.unt.edu/ark:/67531/metadc60182/m1/3/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.