Eurocopter

Artus

Airbus Helicopters

Charles Louis

Patrick Quesne

Jean Joseph Mondet

Jean-Luc M Leman

Vincent Girard

Matthieu Ferrant

Jean Mondet

Jean-Luc Leman

A power transmission gearbox provided with at least one lubrication system including a lubrication pump. The lubrication pump is in fluid flow communication with a fluid flow circuit leading to at least one spray means. The gearbox includes an emergency tank suitable for containing a lubrication fluid, the emergency tank being in fluid flow communication with the fluid flow circuit, the emergency tank being connected by at least one pipe to the fluid flow circuit upstream from each spray means, the lubrication fluid being moved in the fluid flow circuit to each spray means by a gas that is set into motion by the lubrication pump in the event of a leak of the lubrication liquid.

Power transmission gearbox and an aircraft

A frequency adapter for a rotorcraft rotor is provided. The frequency adapter has at least first and second cylinders having respective elongate first and second side walls, respectively. The second cylinder is surrounded at least in part by the first cylinder. Resilient return rings are in contact with the first and second side walls. The return rings comprise resilient first and second extreme layers each in contact with the first and second side walls. The adapter is provided with a fluid arranged in a single chamber between the first and second extreme layers.

Frequency adapter and return means suitable for being arranged in such a frequency adapter

The present invention relates to a damper () provided with an inner end strength member () and an outer end strength member () that are tubular and coaxial, a return member () being arranged between the inner end strength member () and the outer end strength member (). The return member () includes an intermediate strength member () coaxial with the inner and outer end strength members (), said return member () having first and second return means (), said first return means () being arranged between the outer end strength member () and said intermediate strength member (), said second return means () being arranged between the inner end strength member () and said intermediate strength member ().

Blade damper, and a rotor fitted with such a damper

To achieve automatic setting into coincidence, the following are provided:

Method and a system for setting into coincidence, a technique, a drive device, and an aircraft

The present invention relates to an electromechanical motor (M) provided with an actuator (A) having an outer casing (--) surrounding a stator (-) possessing a coil (). The rotor () is also disposed inside the stator (-). The invention is remarkable in that the actuator has two distinct and independent outlets (S, S) capable respectively of actuating, one after the other, first and second transmissions (C, C).

Two-outlet electromechanical motor

A torque limiter is provided with a first plate that rotates a second plate via a plurality of balls. The second plate shares the same axis as the first plate. Each ball is suitable for escaping from a respective housing in order to cease driving the second plate when the torque exceeds a predetermined threshold. Each housing includes a first orifice and a second orifice facing each other and formed respectively in the first plate and in the second plate. The torque limiter is remarkable in that it includes first and second distinct inlets for causing the first plate to turn about its axis.

Torque limiter having two mechanical inlets

A device for locking a holding structure for securing a foldable blade of a rotorcraft rotor to the hub of the rotor. The holding structure is hinged in pitch and in drag relative to the hub and the rotor includes, for the purpose of folding the blade, elements for locking the blade-holding structure in pitch and in drag, which device is remarkable in that the associated drive elements includes brake elements preventing it from turning in flight, in particular under the effect of vibration from the rotor.

Growing community of inventors

Aix en Provence, France

Charles Louis