FIELD: internal combustion engines.
SUBSTANCE: assistance device (100) for free turbine turbomachine (GT1) of an aircraft, comprising at least two free turbine turbomachines (GT1, GT2), the device comprising electric starter machine (D1) for providing prolonged assistance to the gas generator of first turbomachine (GT1) using energy produced by electric generator machine (G2) driven by second turbomachine (GT2), the device additionally comprising at least one electrical storage member (S1) electrically connected to said electric starter machine (D1) to provide short-term assistance to said gas generator. Electric starter machine (D1) is powered by first power converter (SPC1) that allows it to exchange energy with storage member (S1) for short-term assistance, and that transmits to it energy supplied by second power converter (SPC2) for prolonged assistance.
EFFECT: independence from on-board network and easy implementation.
12 cl, 13 dwg
