Assistance device for an aircraft turbine engine with a free turbine
AssigneeSafran Helicopter Engines
InventorsVincent Poumarede, Jean-Michel Bazet, Thomas Klonowski
Life of this patent
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Abstract
An assistance device for an aircraft free-turbine turbine engine, the device including first electrical power supply for powering a winding of a starter rotary machine, referred to as a “first” winding, in order to provide first assistance in accelerating the gas generator of the engine. The device further includes a monitor for monitoring the first assistance, and a second power supply for electrically powering a second winding of the rotary machine to provide second assistance in accelerating the gas generator if the monitor observes that the first assistance is insufficient.
Claims17
An assistance device for a turbine engine of an aircraft, the turbine engine including a free-turbine, the assistance device comprising:
- a first starter rotary machine having a first winding;
- and
- a first power supply assembly which electrically powers the first winding to drive a gas generator of the turbine engine, the first power supply assembly including a first DC/AC power converter and a first contactor;
- a second winding distinct from the first winding, said first starter rotary machine being a double-winding rotary machine, or being with a second rotary machine, said first starter rotary machine and the second rotary machine each being a single-winding rotary machine;
- a monitor which monitors the first power supply assembly and the first winding;
- and
- a second power supply assembly which electrically powers the second winding in order to drive the gas generator of the turbine engine, the second power supply assembly including a power supply and a second contactor,
- wherein the monitor is configured to identify insufficient power in the first power supply assembly or in the first winding and to cause the second winding to be electrically powered by the second power supply assembly when such insufficient power is identified.
An assistance device for a turbine engine of an aircraft, the turbine engine including a free-turbine, the assistance device comprising:
- a first starter rotary machine having a first winding;
- and
- a first power supply assembly which electrically powers the first winding to drive a gas generator of the turbine engine, the first power supply assembly including a first DC/AC power converter and a first contactor;
- a second winding distinct from the first winding, said first starter rotary machine being a double-winding rotary machine, or being with a second rotary machine, said first starter rotary machine and the second rotary machine each being a single-winding rotary machine;
- a monitor which monitors the first power supply assembly and the first winding;
- and
- a second power supply assembly which electrically powers the second winding in order to drive the gas generator of the turbine engine, the second power supply assembly including a power supply and a second contactor,
- wherein said monitor is configured to identify insufficient power in the first power supply assembly or in the first winding and to cause the second winding to be electrically powered by the second power supply assembly when such insufficient power is identified, and the first winding is powered by an electricity storage member and the second winding is powered by an on-board network of the aircraft.
A method of assisting a turbine engine of an aircraft, the turbine engine including a free turbine, the method comprising:
- electrically powering a first winding of a first starter rotary machine by a first electrical power supply assembly in order to drive a gas generator of the turbine engine, the first electrical power supply assembly including a first DC/AC power converter and a first contactor;
- monitoring the first electrical power supply assembly and the first winding;
- and
- electrically powering a second winding by a second electrical power supply assembly in order to drive said gas generator when, during the monitoring, there is insufficient power in the first electrical power supply assembly or in the first winding, the second electrical power supply assembly including a power supply and a second contactor, the second winding being distinct from the first winding, said first starter rotary machine being a double-winding rotary machine, or being with a second rotary machine, said first starter rotary machine and the second rotary machine each being a single-winding rotary machine.
Dependencies are inferred from the claim text.