Arianegroup Sas

Safran Power Units

Yoann Lavenu

Olivier Faye

Anthony Caron

Benoît Cazin

Sonia Rios Fernandez

Regulating valve with a rack and pinion transmission system for an aircraft or a spacecraft, including a valve body, a transmission shaft, a rolling element, a rack of the rolling element being engaged with a pinion of the shaft, a first end of the rolling element being guided in translation by a first bearing, and a second end of the rolling element being guided in translation by a second bearing, the valve including an annular connecting flange fixed to the valve body, the annular connecting flange radially extending between an axisymmetric inner face about a second axis of the rolling element and an axisymmetric outer face about a central axis, the inner face including a radially inner housing in which the second bearing is housed, the second axis being radially offset with respect to the central axis.

Cryogenic regulating valve for aircraft or spacecraft

A valve includes a valve body provided with a plug, connected to an actuation system, an upstream duct, a downstream duct, and a purge duct provided with a shutter. The plug is movable in rotation about a longitudinal axis in the valve body, so that the rotation of the plug according to a first angular sector defines a flow between the upstream duct and the downstream duct, the rotation of the plug according to a second angular sector separate from the first angular sector shuts off the connection between the upstream duct and the downstream duct, and the rotation of the plug according to a third angular sector included in the second angular sector actuates the shutter so as to allow a flow from the upstream duct to the purge duct.

Regulating valve with integrated purge function

A kit for forming a bipolar plate of a fuel cell, the kit comprising two half-plates (A,B) adapted to be assembled one against the other, each of the two half-plates (A,B) having grooves (A,A,B,B) formed by embossing and extending in a longitudinal direction (X-X), and being adapted to form reagent flow channels (A,B) on either side of the half-plates (A,B), together with heat transfer fluid flow ducts () between the two half-plates (A,B), the kit being characterized in that the half-plates (A,B) are identical, each having at least one pair of complementary indexing elements (AABBAABB) made by embossing and adapted to center said half-plates (A,B) relative to each other when they are assembled together.

Growing community of inventors

Follainville, France

Yoann Lavenu