Patent ID: 8186652

Claim:
A gas and liquid mixture generation apparatus comprising: an apparatus body having a circular column-like internal space defined by a cylindrical inner surface and circular inner surfaces; at least one internal cylindrical member disposed within said internal space away from said cylindrical inner surface; a first fluid introduction section for injecting a volume of first fluid into a tubular space between said cylindrical inner surface and said internal cylindrical member toward a circumferential direction; and a second fluid introduction section for introducing a volume of second fluid and a gas and liquid mixture discharge port, which are disposed in said circular inner surfaces, wherein either one of fluids selected from a group consisting of a liquid and a gas is introduced from said first fluid introduction section, and the other of said fluids is introduced from said second fluid introduction section, and wherein at least two internal cylindrical members having different diameters from each other are disposed in said apparatus, said at least two internal cylindrical members fixed to one and the other of said circular inner surfaces alternately in order corresponding to respective diameter sizes.