Unducted fan for an aircraft turbine engine

US10118710B2 · kind B2 · utility

Assignees

• SAFRAN AIRCRAFT ENGINES · FR
• AIRCELLE · FR

Inventors

• Charles-Henri Michel Marie Derrez · Montrouge, FR
• Adrien Jacques Philippe Fabre · Moissy-Cramayel, FR
• Sebastien Juste · Saint-Fargeau-Ponthierry, FR
• Cyril Roger Yves Le Pecheur · Grandvillars, FR
• Michel Rognant · Le Havre, FR

Key dates

• Filing date: Feb 23, 2016
• Grant date: Nov 6, 2018
• Expiry date: Nov 6, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

An unducted fan for an aircraft turbine engine, including a propeller having a hub and an annular array of blades extending substantially radially outwards from the hub, is provided. The hub includes an annular array of cowls, each of which is mounted between the radially inner ends of the blades and suitable for being fixed to an upstream collar and to a downstream collar of the hub. At least one cowl includes, at a circumferential end, a joint edge which is contiguous with a complementary joint edge of an adjacent cowl. The at least one cowl and at least one of the upstream and downstream collars are configured so that the cowl can be mounted and dismounted by a movement including a pivoting about an initial pivot axis circumferentially separated from the at least one joint edge.