Electrical energy source incorporating a fuel cell with water evacuation without external rejection of material using an inlet valve and reservoir in a controlled manner, applicable to most types of fuel cell

摘要

A source of electrical energy incorporates a fuel cell (1) and at least one circulation channel (5a) including an inlet, connected to a source of reactive fluid, and an outlet to feed the fuel cell with reactive fluid and to evacuate the water produced in the fuel cell. It incorporates a reservoir (10) arranged at the outlet from the circulation channel and an inlet valve (11) arranged between the source of reactive fluid and the inlet to the circulation channel An Independent claim is also included for controlling this energy source in which: (a) the reservoir is filled with reactive fluid and the inlet valve is closed during a first predetermined time period; (b) the inlet valve is opened during a second predetermined time period, to evacuate the water accumulated during the first time period, the second time period being significantly shorter then the first.