FIELD: mechanical engineering: turbosuperchargers.
SUBSTANCE: proposed device has impeller with hub, shaft and bushing turned onto shaft neck. Central blind hole is made in impeller hub extension in which shaft neck is secured by thread. Bushing is installed in blind hole with force closure. Extension of hub, at least in zone of its end from side of shaft is made approximately in form of cylindrical hollow body. Press-fitted sleeve is found radially outside on extension of hub being connected with hub extension with force closure. Hub extension is clamped with force closure between bushing and press-fitted sleeve. Bushing is provided with sections of different inner diameters arranged axially one after the other. Inner diameters decrease in direction of impeller, and one inner thread for turning onto shaft neck is made mating, being found on larger diameter section.
EFFECT: increased value of transmitted torques.
14 cl, 6 dwg
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