Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Compagnie Generale Des Establissements Michelin

Claude Blanc

Olivier Essinger

Patrick Marro

Arnaud GrandJean

Cesare Stacchi

Arnaud Grand-Jean

Arnaud Grandjean

A method for manufacturing a membrane-electrode assembly for a fuel cell comprises the following steps: a first step during which a reinforcement () is deposited on a first face of an ion-exchanging membrane (), the membrane being held on a support film; a second step during which the membrane is unglued from the support film; a third step during which the reinforcement (') is deposited on the second face of the ion-exchanging membrane; and a fourth step during which a chemical catalyst element is deposited on the parts left free of the first and second faces of the membrane.

Method for producing a membrane electrode assembly for a fuel cell

A method for manufacturing a membrane-electrode assembly for a fuel cell comprises the following steps: a first step during which a chemical catalyst element is deposited on a first face of an ion-exchanging membrane, the membrane being held on a support film; a second step during which the membrane is unglued from the support film; a third step during which the membrane is inserted between two reinforcing elements; and a fourth step during which a chemical catalyst element is deposited on the part left free of the second face of the membrane.

A stack is provided for manufacturing bipolar plates for fuel cells. Each bipolar plate includes two sheets that are in a superimposed position relative to each and separated by a layer of filler material between the two sheets. The stack includes, in an alternately arranged manner, bipolar plates and intermediate plates. At least one of the intermediate plates has a plurality of slots passing through the intermediate plate in a direction of a thickness of the intermediate plate.

Stack for manufacturing bipolar plates for fuel cells

A method for treating a bipolar plate for a fuel cell includes passing the bipolar plate between two rows of parallel straightening rollers. Action of the parallel straightening rollers on the bipolar plate result in opposite faces of the bipolar plate being on parallel planes.

Process for treating a bipolar plate for a fuel cell

A wheel drive system for ground movement of an aircraft includes a motor system and a clutch system. The motor system, which is borne by an unsuspended part of a landing gear strut of the aircraft, includes an electric motor and a reduction gearing system. The clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, includes a dog-clutch and a translational movement system. The dog-clutch includes a drive part, which is secured to the motor system, and a receiving part, which secures to a rim of the wheel. The translational movement system moves the drive part along an axis of an axle crossbeam of the landing gear strut into an engaged position, in which the drive part collaborates with the receiving part, and a disengaged position, in which the drive part is separated from the receiving part.

Wheel drive system, in particular for an aircraft

A wheel drive system for ground movement of an aircraft includes a motor system and a clutch system. The motor system, which is borne by an unsuspended part of a landing gear strut of the aircraft, includes an electric motor and a reduction gearing system. The clutch system, which connects an output shaft of the electric motor to a wheel of the aircraft via the reduction gearing system, includes a dog-clutch and a translational movement system. The dog-clutch includes a drive part, which is secured to the motor system, and a receiving part, which secures to a tire of the wheel. The translational movement system moves the drive part along an axis of an axle crossbeam of the landing gear strut into an engaged position, in which the drive part collaborates with the receiving part, and a disengaged position, in which the drive part is separated from the receiving part.

A wheel motorization system, useable for an aircraft to run along a ground surface, includes an electric motor, a driving member securable with a hub of a wheel of the aircraft, and a clutch device connecting an output shaft of the motor to the driving member via a reduction device. The clutch device includes a freewheel device, which allows transmission of a rotational torque only in a first torque transmission direction when the aircraft is travelling forwards.

Wheel motorizing system, notably for an aircraft wheel

A tank () for storing fluid under high pressure, of cylindrical overall shape and round cross section comprising at each of its ends along its axis (), a metal end piece (), a liner () enveloping the said end pieces, and a structural layer () of fiber impregnated with thermosetting resin enveloping the said liner.

Growing community of inventors

Clermont-Ferrand, France

Claude Blanc