FIELD: engines and pumps.
SUBSTANCE: proposed blade comprises root and butt. Blade root is made of bent laminar strip from plastic reinforced by fibre, its fold being provided with retainer strap in fold area. Note here that strip overlaying ends make the blade surface. Root butt comprises long beam and retainers jointed therewith and locked thereat to secure the blade at working wheel groove. Blade root is hinged at butt beam. Separate holders are jointed together by side parts directed parallel with said beam. Another version of the set relates to working wheel including rotor with grooves and abode described blades. Butt of every blade is fitted in appropriate rotor groove and locked with the rotor.
EFFECT: longer life.
15 cl, 3 dwg
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