Liebherr-aerospace Toulouse Sas

Frédéric Bristiel

Stéphane Fauque

Damien Maury

Jean-Luc Mancho

Eric Lafond

Raphaël Vilamot

The invention relates to a device () for cooling heat-sensitive control members () of a pneumatic or electropneumatic valve (), comprising a containment casing () designed to contain said control members (): a fresh air inlet () in said containment casing (); an air outlet () of said containment casing, provided with a ventilation air tube () that comprises: an air acceleration column () which puts into fluidic communication said containment casing () and the air outlet (); a primary supply () for supplying the acceleration column () with primary air; a secondary supply () for supplying the acceleration column () with secondary air, provided in said containment casing () such that the primary air can drive and accelerate the secondary air in the direction of the air outlet so as to produce forced air ventilation in said containment casing () between the air inlet () and the air outlet ().

Device for cooling heat-sensitive control members of a pneumatic or electropneumatic valve, and valve equipped with such a cooling device

The invention relates to an air bleed system comprising an air bleed port provided on an engine of an aircraft, an air supply pipe, a pressure sensor, a pressure relief valve mounted in said air supply pipe, characterized in that said pressure relief valve comprises: a valve body (); a closure member () pivotally mounted in said air circulation duct; and an air discharge channel () passing through said valve body (); at least one air discharge opening () formed on said upstream face of said closure member () and at least one air evacuation opening () which opens out to the outside of the air circulation duct.

Air sampling system equipped with an overpressure valve

A fluid flow control valve includes a valve body, a closing member arranged in the valve body and configured so that it can have at least one first position, called the open position, in which it allows the flow of fluid to flow freely in the valve body, and at least one second position, called the closed position, in which it prevents the fluid flow from flowing in the valve body between the fluid inlet and the fluid outlet, an electric actuator of the closing member that is suitable for being able to control the position of the closing member in the valve body, characterized in that the electric actuator is arranged in the valve body so that it can be cooled by the flow of fluid flowing in the valve body.

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Toulouse, France

Frédéric Bristiel