Mgi Coutier

Akwel

Adrien Eustache

Pascal Guerry

Michel Robinault

Ludovic Serrurier

The resonator is configured to attenuate the noise in a duct delimiting an internal channel for the flow of a fluid according to a reference axis, of the type including an annular compartment configured to extend around the channel and provided with at least one orifice forming a neck for communication with the flow channel so as to form a resonance chamber. Accordingly, the compartment has an inner structure with a geometry shaped so as to produce a revolution annular asymmetry of the resonance chamber about the reference axis, adapted to generate a phase shift of an acoustic pressure wave reflected inside the chamber relative to an acoustic pressure wave incident from the main flow.

Acoustic resonator

This separator device includes a separation chamber having an inlet and an outlet, an oil recovery chamber coupled to the separation chamber, an emitter electrode, a collector electrode, and an electronic unit connected to the emitter and collector electrodes, for during a charging phase, bringing the emitter electrode to a negative potential, so as to negatively charge oil drops, and bringing said at least one collector electrode to a zero or positive potential, so as to collect negatively charged oil drops. The separator device further includes a pressure-drop generating member in the separation chamber. The oil recovery chamber is coupled to the downstream portion of the separation chamber via a vacuuming port, so that the oil recovery chamber is depressed.

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Port, France

Adrien Eustache