Abstract:
A device for manufacturing a fan casing of a turbomachine, said fan casing being made of a composite material, in which the mould (16) has a cylindrical body (22) about a longitudinal axis and lateral end plates (24), and in which the counter-mould (18) has a cylindrical body (30) and lateral counter-flanges (32), the counter-flanges (32) being intended to be secured to the end plates (24), the body (22) of the mould (16) and the body (30) of the counter-mould (18) being concentric, the preform (P) being intended to be arranged between the body (22) of the mould (16) and the body (30) of the counter-mould (18), and in which the material of the body (22) of the mould (16) has a coefficient of expansion much higher than that of the body (30) of the counter-mould (18).
Abstract:
The invention relates to a turbine engine, such as an airplane turbofan or turboprop engine, including a blower casing (10) having a substantially cylindrical wall (12) surrounding the blades of the blower, and at least two annular acoustic insulation panels (18, 20) mounted radially inside said wall (12), a first panel (18) being mounted upstream from the blower, a second panel (20) being located downstream from the first panel (18) and supporting an inner layer (42) made of an abradable material, facing the radially external ends of the blades of the blower, characterized in that the two annular panels (18, 20) form a single structural unit.
Abstract:
Compacting and injection mould (100) for fibrous preform intended for the manufacture of a turbomachine flow-straightener vane made of composite material, the mould comprising a frame (102) forming a trough intended to receive the fibrous preform and closed in a leaktight manner by a lower cover (104) and an upper cover (106) that are substantially flat, compacting blocks (108 to 118) positioned inside of the trough each with a normal bearing surface (108a to 118a) against a surface (12a to 20a) of the fibrous preform to be compacted, and closure blocks (120 to 126) positioned inside the trough, each closure block having a normal bearing surface (120b to 126b) against a surface (112b to 118b) of a compacting block and lacking a surface in contact with the fibrous preform.