Abstract: The burner (1) according to the invention comprises a main body (10) provided with an operating cavity (11) open at least on a first side. The burner also comprises first feed means (20) arranged to introduce a flow of a first reagent (for example combustion air) into said cavity and second feed means (31) are arranged to introduce a flow of a second reagent (for example fuel) into the same operating cavity. The first means are configured so as to introduce the first reagent according to a tangential direction, while the second means are configured to introduce the second reagent according to a direction parallel to the direction in which the cavity extends. According to the invention the operating cavity comprises a first portion between the intake position of the first reagent and the intake position of the second reagent. This first portion defines a stabilization chamber of the flow of the first reagent.

Abstract: A micro fuel cell system comprises at least an anode region and a cathode region being realized in a substrate as well as at least an active area for chemical reactions and an ionic exchange membrane for separating the active area. The anode and cathode regions, the active area and the ionic exchange membrane are realized on a same planar surface being made by the substrate in order to form a single multifunctional bipolar plate.