PNEUMATIC DEVICE FOR RAPIDLY REACTIVATING A TURBINE ENGINE, ARCHITECTURE FOR A PROPULSION SYSTEM OF A MULTI-ENGINE HELICOPTER PROVIDED WITH SUCH A DEVICE, AND CORRESPONDING HELICOPTER

摘要

The invention relates to a device for rapidly reactivating a helicopter turbine engine (6). Said device is characterized in that it includes an air turbine (7) mechanically connected to said turbine engine (6) so as to be able to rotate it and ensure the reactivation thereof; - a pneumatic storage device (9) connected to said air turbine (7) by means of a pneumatic circuit (10) for supplying pressurized gas to said air turbine (7); and - a controlled, rapid-opening air valve (11) arranged on the pneumatic circuit (10) between said storage device (9) and said air turbine (7) and controllable at least in an open position, wherein the gas can be supplied to said air turbine (7), or in a closed position, wherein said air turbine (7) is no longer supplied with pressurized gas.