PROPELLER WITHOUT FAIRING WITH BLADES WITH VARIABLE ANGLE FOR TURBOMACHINE Russian patent published in 2014 - IPC B64C11/06 

FIELD: transport.

SUBSTANCE: invention relates to aircraft, in particular, to propeller designs. A propeller without a fairing with blades with variable angle for a turbomachine contains blades which are mounted with possibility to rotate around their axes in radial sockets (136) of a ring rotor element (134). Each blade is placed on a plate (144) with a cylindrical body, which plate is inserted from the outside into the radial socket of the rotor element and is retained in this socket by a ring rim (150) installed from the inside in the socket and is resting on the inner bead of the socket by means of a bearing (154). The rim is sectored and includes a radial inner part (160) engaged by bringing the rim sectors into the ring recess (162) on the outer surface of the plate body. Radially the inner part (160) of the rim (150) is inserted into the ring recess (162) in the plate body (144).

EFFECT: longer lifetime of propeller.

11 cl, 7 dwg