FIELD: engines and pumps.
SUBSTANCE: engine rotor has discs with hubs having splines taken out from under the bed on external elements; at that, hubs are located relative to the disc bed axis so that the ratio of surface areas is F1/F2=1.0…1.9, where: F1 - section area of front part of the hub in location place of external element with splines, and F2 - section area of rear part of the hub.
EFFECT: increasing service life and operability of the engine by providing alignment and elimination of rotor vibrations owing to re-distribution of thicknesses as to width of disc hubs.
3 dwg
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