Aircraft turbomachine fan comprising a balancing flange concealed by the inlet cone
AssigneeSnecma
InventorsOlivier Belmonte, Jean-Luc Christian Yvon Goga
Life of this patent
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Abstract
An aircraft turbomachine fan is disclosed. The fan includes a turbomachine inlet cone that has an exterior surface intended to be closely followed by a flow section of the turbomachine, and an annular balancing flange that rotates as one with a fan disk about an axis of rotation and is equipped with a plurality of weight-fixing holes. The fan also includes one or more balancing weights mounted fixedly on the annular balancing flange. The annular balancing flange is positioned inside the inlet cone in such a way that its weight-fixing holes are isolated from the flow section. The flange is produced as a single piece with a fan blade retaining ring.
Claims8
An aircraft turbomachine fan comprising:
- a turbomachine inlet cone that has an exterior surface intended to be closely followed by a flow section of the turbomachine;
- a fan disk;
- fan blades which are mounted on said disk with which disk the blades rotate about an axis of rotation of the fan;
- an annular balancing flange that rotates as one with the fan disk about said axis of rotation and is equipped with a plurality of weight-fixing holes spaced circumferentially apart;
- one or more balancing weights mounted fixedly on said annular balancing flange by means of one or several of said weight-fixing holes, said annular balancing flange being positioned inside said inlet cone in such a way that weight-fixing holes of the annular balancing flange are isolated from said flow section of the turbomachine;
- and
- a fan blade retaining ring for axially retaining the blades with respect to said fan disk, said retaining ring and said annular balancing flange being produced as a single piece.
Dependencies are inferred from the claim text.