公开(公告)号：US20200369369A1

公开(公告)日：2020-11-26

申请号：US16068088

申请日：2016-12-22

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Serge Rene MORREALE ,  Yanis BENSLAMA ,  Jeremy DIEVART ,  Dominik IGEL

IPC: B64C11/32 ,  F01D7/00

Abstract: The invention relates to a fan module with variable-pitch blades for a turbomachine, comprising a rotor (2) carrying blades (3), a stationary housing (7), a mechanism (11, 12, 13, 14, 20) for regulating the pitch of the blades (3), which is connected to the rotor, and a control means (16, 17) mounted on the stationary housing (7) and comprising a control part (18) that can be moved in translation according to an axis (X) of rotation of the rotor (2), and a bearing (19) for load transfer between the control part (18) and said mechanism, characterised in that it also comprises a stationary track (23) supporting the elastic restoring means (26, 27) which are arranged so as to exert an axial restoring force on the control part (18) towards a determined position, preferably corresponding to the blade (3) feathering.

公开(公告)号：US20190003484A1

公开(公告)日：2019-01-03

申请号：US16068102

申请日：2016-12-22

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Serge Rene MORREALE ,  Yanis BENSLAMA ,  Jeremy DIEVART ,  Dominik IGEL

IPC: F04D29/36 ,  F04D29/32 ,  F02K3/00 ,  F04D29/056 ,  F01D7/00

Abstract: The invention relates to a fan module having variable-pitch blades for a turbine engine, including a rotor (2) having blades (3), a stationary casing (7), and a system for adjusting and controlling the pitch of the blades (3), the rotor (2) including a central shaft (6) and a ring (9) for supporting the blades surrounding the shaft, a front end of the ring being connected to a front end of the shaft so as to define an annular space between the ring and the shaft which is open towards the rear, said annular space of the rotor (2) housing said system, and the shaft (6) being guided by a first bearing (8) mounted in the stationary casing (7), to the rear of the ring (9), characterised in that the ring (9) is guided by at least one complementary bearing (31) located upstream of the first bearing (8).