A twin-spool turbine engine includes a low-pressure rotor and a high-pressure rotor, an alternator, including an inductor winding and an armature, the high-pressure rotor rotating the inductor winding of the alternator. The armature is mounted so as to rotate and the low-pressure rotor is connected
A twin-spool turbine engine includes a low-pressure rotor and a high-pressure rotor, an alternator, including an inductor winding and an armature, the high-pressure rotor rotating the inductor winding of the alternator. The armature is mounted so as to rotate and the low-pressure rotor is connected to a clutch arranged so that the low-pressure rotor drives the armature in a manner that is contrarotational to the inductor winding when the clutch are engaged.
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The invention claimed is: 1. A twin-spool turbine engine, comprising a low-pressure rotor and a high-pressure rotor, an alternator, comprising an inductor winding and an armature, the high-pressure rotor rotating the inductor winding of the alternator, wherein the armature is mounted so as to rotat
The invention claimed is: 1. A twin-spool turbine engine, comprising a low-pressure rotor and a high-pressure rotor, an alternator, comprising an inductor winding and an armature, the high-pressure rotor rotating the inductor winding of the alternator, wherein the armature is mounted so as to rotate and the low-pressure rotor is connected to a clutch arranged so that the low-pressure rotor drives the armature in a manner that is contrarotational to the inductor winding when the clutch is engaged. 2. The turbine engine as claimed in claim 1, wherein, the turbojet comprising a fixed structure, the clutch is arranged so that, when the clutch is disengaged, the armature is fixedly attached in rotation to the fixed structure and thereby stop the armature from rotating, and, when the clutch is engaged, the clutch connects the armature with the low-pressure rotor of the turbine engine. 3. The turbine engine as claimed in claim 2, wherein the clutch comprises a clutch-brake. 4. The turbine engine as claimed in claim 2, wherein the clutch is controlled by hydraulic means. 5. The turbine engine as claimed in claim 2, wherein, the alternator being placed in a radially eccentric position on the turbojet, the movement is transmitted from the low-pressure rotor and high-pressure rotor to the armature and the inductor winding by transmission shafts that are radial relative to the axis of the turbine engine. 6. A method of transmitting movement to an alternator, in a twin-spool turbine engine, comprising a low-pressure rotor and a high-pressure rotor, an alternator, comprising an inductor winding and an armature, wherein: at a first engine speed, the high-pressure rotor rotates the inductor winding of the alternator, the armature remaining fixed, and at a second engine speed, the high-pressure rotor rotates the inductor winding of the alternator and the low-pressure rotor drives the armature in a manner that is contrarotational to the inductor winding. 7. The method as claimed in claim 6, wherein the turbojet comprises a clutch arranged so that the low-pressure rotor drives the armature in a manner that is contrarotational to the inductor winding when the clutch is engaged and the armature remains fixed when the clutch is disengaged.
Kern, John M.; Chung, KiYoung; Qu, Ronghai; Wu, Wei; Young, Craig D.; Toot, Peter D.; Glynn, Christopher; Compton, Tom, Electric power generation using power turbine aft of LPT.
Jeffrey Ronald Coles GB; Marc Holme GB; James Patrick Doyle GB, Electrical generator an aero-engine including such a generator, and an aircraft including such a generator.
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