COMPOSITE SHOULDER Russian patent published in 2017 - IPC F04D29/54 

FIELD: engines and pumps.

SUBSTANCE: composite blade body made of a composite material of thermosetting resin or thermoplastic resin and reinforcing fibers, and a metal cover which is attached to a section of the leading edge of the composite blade body by means of a soft adhesive. Section for filling adhesive, which is filled with a soft adhesive, a plurality of contact sections of the side front edges which come into contact with a curved section corresponding to the inlet edge of the metal casing, and a plurality of projections which come into contact with the planar section corresponding to the blade surface, the metal housing, with at least the same height as the thickness of the required amount of soft adhesive is filled in the section for filling adhesive formed in the body section of the front edge of the composite blades.

EFFECT: simplification of the process of attachment to the metal casing section of the leading edge and increasing the accuracy of the process.

3 cl, 8 dwg