THE DESIGN OF AIRPLANE-ENGINE SUPERCHARGERS (1937)
NASA Technical Reports Server (NTRS) · leaf 16
rigs. 5^6^7,8 N.A.C.A. Technical Memorandum No. 839 Figure 5.' Impeller m of a Junker super- charger. Figure 6.-DVL rotor wheel with separate Impellers having adjustable blades and variable spirals• Figure 7.-Comparison of pressure heads and efficiencies of closed and half-open rotor wheels … Figure Sb.-Effect of clearance (a) Figure Sc.-Effect of clearance (a) on wheel character- on characteristics of letlcs with half-open impeller. Impeller open at both sides.
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