METHOD FOR OPTIMIZING SPECIFIC CONSUMPTION OF TWO-MOTOR HELICOPTER AND TWO-MOTOR DESIGN WITH REGULATION SYSTEM FOR ITS APPLICATION

摘要

1. A method for optimizing the specific consumption of a helicopter equipped with two gas turbine engines (1, 2), each of which contains a gas generator (11, 21), equipped with a combustion chamber (CC), characterized in that at least one of the gas turbine engines ( 1, 2) is capable of independent operation in a long flight mode, while the other engine (2, 1) is in the so-called ultra-low gas mode with zero power and is configured to switch to the accelerator mode of the gas generator of this engine (2, 1) withthe power of the drive (E1, E2) compatible with restarting during an emergency exit, in that in the case of at least one unsuccessful preliminary attempt to restart normally (U0), this emergency restart is carried out by emergency mechanical assistance (U2, U1) a gas generator (21, 11) in a standby mode of a gas turbine engine (2, 1) produced by an autonomous and specially designed for this restarting energy, and the fact that in case of failure of a gas turbine engine (1, 2) used in e independent work, another gas turbine engine (2, 1) located in the ultralow gas mode, re-run through the emergency assistance (U2, U1) .2. The optimization method according to claim 1, in which the ultra-low gas mode is selected from the engine maintenance mode (1, 2) in rotation with the combustion chamber (CC) turned on, the engine maintenance mode (1, 2) in rotation with the combustion chamber (CC) turned off and Zero-rotation mode of the engine (1, 2) with the combustion chamber (CC) off. 3. The optimization method according to the previous paragraph, in which at normal