Airbus Helicopters

Frederic Dyrla

Alban Corpron

Michel Vialle

Romain Stephant

The present invention relates to a method of increasing the safety of a power plant provided with at least one heat engine and a gearbox (BTP), the engine driving the gearbox (BTP), the gearbox (BTP) having a lubrication system implemented using an aqueous medium stored in a reserve, in which method a fluid comprising water is injected into the heat engine to increase the power developed by the heat engine without increasing the temperature of a member of the heat engine or to decrease the temperature without modifying the power developed by the engine, the fluid being taken from the reserve.

Method of increasing the safety of a power plant, and a power plant suitable for implementing the method

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 optimizing the use of an aircraft power plant having at least one engine operating within a performance envelope covering at least a first rating and a second rating, the first rating presenting a first power (P1) usable over a predetermined first time interval (D1), the second rating presenting a second power (P2) greater than said first power (P1), the second power (P2) being usable continuously over a predetermined second time interval (D2). Thus, while the engine is developing a third power (P3) that is both greater than the first power (P1) and less than or equal to the second power (P2), a potential first duration of utilization (&#x394;T) of continuous use of the second power (P2) is determined and displayed, the first duration of utilization (&#x394;T) elapsing at a speed that is variable and that depends on said third power (P3).

Method and device for optimizing the utilization of an engine

The present invention relates to a method of increasing the safety of a power plant () provided with at least one heat engine () and a gearbox (BTP), said engine () driving said gearbox (BTP), said gearbox (BTP) having a lubrication system implemented using an aqueous medium stored in a reserve (), in which method a fluid comprising water is injected into said heat engine () to increase the power developed by the heat engine () without increasing the temperature of a member of the heat engine (), or to decrease said temperature without modifying the power developed by the engine (), said fluid being taken from said reserve ().

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Bouc Bel Air, France

Frederic Dyrla