Drive system for auxiliary machines of a twin spool turbine engine

摘要

The driving system has a power train (8) between the shaft (2) of a high pressure rotor and the machines (A1,A2), mechanically drives the machines. A coupling (61) and a power train (9) between the shaft (3) of a low pressure rotor and the machines (A3,A4), drives the machines (A3,A4). A coupling (10) between the power trains allows the other machine to be driven by the shaft of the high pressure rotor, when the engine operates at high speeds. An independent claim is also included for driving system operating mode.