FIELD: mechanical engineering; fans.
SUBSTANCE: invention relates to fan rotor containing disk 2 whose rim has great number of axial slots 5 spaced at uniform angular pitch, and great number of replaceable blades 3 which pass radially outwards from periphery of said disk 2. Each blade is provided with root 4 fitted in slot 5, rear flange rigidly connected with said disk 2 against which rear sides of blade roots thrust, and detachable front cover plate 12 rigidly connected with said disk 2 and designed for holding roots 4 of blades in slots 5. Design peculiarity of rotor is that front cover plate 12 is provided with elastic devices at rear side 13 designed for transmitting forces to front sides of blade roots after mounting sufficient to prevent any displacement of blades in axial direction during normal functioning of engine (except for abnormal conditions when foreign matter get into fan, or blades are lost.).
EFFECT: improved reliability in operation.
4 cl, 5 dwg
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