Electric generator disposed on a rotating turboprop part

摘要

An electrical energy generating device for a propfan-type aircraft propulsion unit rotor. The propulsion unit includes a turbomachine that drives in rotation at least one rotor including a plurality of blades arranged around an annular crown moving with the blades, which forms with its outer wall part of an outer envelope of the propulsion unit, the outer envelope being subjected to atmospheric conditions outside the propulsion unit. The turbomachine generates a flow of hot gases that exit via an annular hot vein, which is concentric with the moving annular crown, and defined for part of its surface by an inner wall of the moving annular crown, and includes, within the moving annular part, a mechanism to transform thermal energy into electrical energy, preferably by thermal diodes. Such a device, as an example, can find application to a device for controlling a pitch of rotors of a propfan-type propulsion unit.

主权项

1. An electric power generating device for a rotor of a propfan-type of aircraft propulsion unit, the propulsion unit including a turbomachine rotating at least one rotor including a plurality of blades, an outer skin of the propulsion unit being subjected to atmospheric conditions outside the propulsion unit, the turbomachine generating a flow of hot gases that are released through a hot annular channel, the device for generating electrical power comprising:
an annular crown that moves with the blades, an outer wall of the annular crown forming part of the outer skin of the propulsion unit and inner wall of the annular crown defining a portion of the hot annular channel; and means for transforming thermal energy into electrical energy, positioned between the inner wall and the outer wall of the annular crown, the means for transforming thermal energy extending in an annular fashion around all of the inner wall of the annular crown and over a predetermined width.