Turbine engine with semi-fixed turbine driving a receiver controlled so as to preserve a roughly constant rotation speed
AssigneeSnecma
InventorJean Loisy
Life of this patent
Estimating the term…
Abstract
The invention relates to a turbine engine (1) with a semi-fixed turbine, particularly for aircraft driving a receiver (2) controlled so as to preserve a roughly constant rotation speed. The turbine engine, in particular via a gear system (20), drives the receiver and an LP compressor (6) with an LP turbine (14). According to the invention, the gear system has a torque control system (26) maintaining a constant ratio between the drive torque of the receiver transmitted by the gear system and the drive torque of the LP compressor transmitted by this same gear system.
Claims9
A turbine engine with a semi-fixed turbine for aircraft, configured to drive a receiver in order to preserve a roughly constant rotation speed, the turbine engine, comprising:
- an LP compressor;
- an HP compressor;
- a combustion annulus;
- an HP turbine;
- and
- an LP turbine which, via a gear system, is configured to drive the receiver and the LP compressor,
- wherein the gear system has a torque control system configured to maintain a constant ratio between a driver torque of the receiver transmitted by the gear system and a driver torque of the LP compressor transmitted by the gear system and the torque control system is further configured to decrease a rotation speed of the LP compressor while maintaining a rotation speed of the receiver roughly constant,
- wherein the gear system has an inlet integral with an LP turbine shaft as well as first and second outlets, the first outlet being integral with an LP compressor shaft and the second outlet being integral with a receiver shaft, and
- wherein the torque control system has a satellite carrier connected to the entrance of the gear system and with a multiplicity of satellite pinions engaging with a planetary pinion linked to the first outlet of the gear system and with a crown gear connected to the second outlet of the gear system.
Dependencies are inferred from the claim text.