Safran Power Units

Safran Aircraft Engines

Snecma

Fabien Boudjemaa

Théophile Horde

Jean-Baptiste Jollys

Matthieu Baron

Denis Real

Antoine Verdier

Adrien Gasse

Omar Hafsaoui

Romain Razes

Robert Vivier

Théophile HordÉ

An electrical power supply device in an aircraft, the device including an enclosure, the enclosure containing at least: a fuel cell; a dihydrogen generator; a gas feed circuit connecting the dihydrogen generator to the anode of the fuel cell; an oxygen feed device feeding the cathode of the fuel cell; and a cooling circuit of the fuel cell associated with at least one heat exchanger; wherein the enclosure is mounted on an actuator system, the actuator system being configured to move the enclosure from a first position in which the enclosure is housed inside an outer wall of the aircraft, to a second position in which the enclosure projects from the outer wall.

Electrical power supply device in an aircraft, and a method of cooling the device

The invention relates to a fuel cell () comprising a membrane electrode assembly () and two gas diffusion layers () co-operating with the assembly to form a unit cell (). The fuel cell () also has a two-phase thermal diffuser () having a condensation zone and an evaporation zone, the evaporation zone being arranged between the bipolar plates () of two adjacent unit cells (). The two-phase thermal diffuser () also has a heating element arranged in the condensation zone. The invention also provides a system comprising the fuel cell and a controller, and it also provides a method of regulating the temperature of the fuel cell.

Fuel cell provided with a temperature-control system and method for thermal control of the cell

A bipolar plate () for making a proton-exchange membrane fuel cell stack, said bipolar plate () being made up of metal sheets that are shaped and assembled together in such a manner as to define primary fluid-flow channels () and secondary fluid-flow channels () that are arranged in alternation, said primary channels () being formed between said assembled-together sheets; the bipolar plate () being characterized in that it includes mechanical reinforcement () made out of metal material arranged in a reinforcing duct () of the bipolar plate (), said metal reinforcement () being configured in such a manner as to oppose a compression force applied to the bipolar plate (), said bipolar plate () further including a source of electricity adapted to feed electric current to the mechanical reinforcement () and thereby give off heat by the Joule effect.

Fuel cell stack presenting reinforced structure

The invention relates to an installation () comprising: According to the invention, a heat exchange circuit () of the first boiler is inserted in the heat removal loop of the fuel cell. Furthermore, in the invention, the installation has a closed liquid circuit (), which circuit comprises at least one heat exchanger () having a heating circuit thermally coupled to the power module and a heated circuit inserted in said circulation circuit, said circulation circuit exchanging heat with said heating circuit, heating the liquid of the circulation circuit. Finally, in the invention, a heat exchange circuit () of the evaporator is inserted in said closed liquid circulation circuit.

Electrical installation having a cooled fuel cell comprising an absorption heat engine

Growing community of inventors

Garches, France

Fabien Boudjemaa