Patent ID: 6932330

Claim:
System for generating a foam comprising: a chamber provided with at least one inlet opening and at least one outlet opening, a porous lining placed between the inlet and outlet openings of the chamber, wherein the porous lining acts as a contacter between the gas phase and the liquid phase, such that the initial gas phase-liquid phase mixture is made in the porous lining in which interfaces are created, said porous lining being a medium offering a throughway permitting flow of the liquid phase and the gas phase through the porous lining in order to assure simultaneous mixing of the liquid phase and the gas phase and the generation of a foam, means for inserting the liquid phase and means for inserting the gas phase in said chamber, through the said, at least one, inlet opening, means for creating low pressure in said chamber and aspirating the foam generated in the porous lining through said, at least one, outlet opening, wherein said means for inserting in said chamber the liquid phase, said means for inserting in said chamber the gas phase, and said means for aspirating the generated foam from said chamber are such that the energy required for the mixture of the liquid phase and of the gas phase and for the generation of the foam is provided by the aspirating means.