CONSTRUCTION STRUCTURE FOR BLADE AND JET ENGINE INCLUDING SUCH STRUCTURE Russian patent published in 2018 - IPC F01D9/02 F04D29/54 

FIELD: engines and pumps.

SUBSTANCE: connecting support member 33 including divided from each other two separated parts 34, 34 is disposed in a coupling component between the blade tail part 21, which is a guide blade 20, and the fixing flange 31f, and the two separated parts 34, 34 are connected to the blade tail portion 21 from both sides in the blade thickness direction. Linear protrusions 21a are respectively formed on both sides of the blade tail portion 21. Brought into contact with the linear protrusions 21a formed on the blade tail portion 21 grooves 35a are respectively formed on the connecting support member 33 two separated parts 34, 34. Side edges 35b, 35b, which are located on the facing towards the blade center side of two separated parts 34, 34 and pass along the chord direction towards the center of the blade, are formed so that they protrude towards the blade center, and the projecting side edges 35b respective end portions are chamfered. Blade tail part 21 is held between the connecting support member 33 two separated parts 34, 34 under the clamping force action, which is applied to the connecting support member 33 two separated parts 34, 34 on both sides in the blade thickness direction.

EFFECT: can be minimized such defect as the reinforcing fibers layer separation in the blade made of a composite material end portion.

3 cl, 5 dwg