Airbus Helicopters

Romain Stephant

Frederic Dyrla

Guido Borchers

Frédéric Dyrla

A power plant () having a first and second turboshaft engines () and an emergency system () for injecting fluid into said engines (). First and second pressurization pipes () connect a tank () to each gas generator of the engines. In addition, the system () includes an injector device () for each engine, which device comprises an injector pipe () connecting said tank () to at least one injector nozzle (). A distributor () is arranged on each injector pipe (), each valve () feeding one of the engines while being connected to the gas generator of the other engine.

Multi-engine power plant having an emergency fluid injection system, and an aircraft

A method of managing a power plant for a rotary wing aircraft, said power plant comprising two main engines, a secondary engine, and a main power transmission gearbox (MGB). Said main and secondary engines mechanically driving said MGB so as to rotate a main rotor of said aircraft. Said secondary engine delivers two distinct mechanical power levels so that said main and secondary engines together deliver sufficient mechanical power to enable said aircraft to fly, firstly a first secondary mechanical power MPand secondly a second secondary mechanical power MPsuitable for compensating for a loss of main mechanical power from at least one main engine.

Growing community of inventors

Aix en Provence, France

Romain Stephant