System and method for operating a multi-engine aircraft in an auxiliary power unit mode

A first and second engine (10 1 , 10 2 ) are connected to a drive train (110 1 , 110 2 ) for driving an aircraft accessory (108). A gearbox (106) is connected to a primer mover propulsor (102, 104). An actuator, operatively associated with a selected engine (110 1 , 110 2 ) is moveable between a pos...

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Bibliographische Detailangaben
Hauptverfasser:	Chevalier, Romain, Chiasson, Matthew, Bisson, Jean-Francois, Lisio, Carmine, Sellors, Dave, Syed, Yusuf, Riverin, Guy
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR INTAKES FOR JET-PROPULSION PLANTS AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS COSMONAUTICS EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING PARACHUTES PERFORMING OPERATIONS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A first and second engine (10 1 , 10 2 ) are connected to a drive train (110 1 , 110 2 ) for driving an aircraft accessory (108). A gearbox (106) is connected to a primer mover propulsor (102, 104). An actuator, operatively associated with a selected engine (110 1 , 110 2 ) is moveable between a position in which the selected engine (110 1 , 110 2 ) drivingly engages the gearbox for driving the propulsor (102, 104) and a position in which the selected engine (110 1 , 110 2 ) disengages from the gearbox (106). A position signal, a status signal, and a request signal that are respectively indicative of a present position of the actuator, a governing state and present speed of each engine, and a request for movement of the actuator from the present position to the other position are received. If the selected engine's speed differs from a predetermined threshold, a control signal is output for causing the engine's speed to be adjusted towards the threshold. A control signal indicating that movement of the actuator is permitted is then outputted.