FOAM GENERATOR Russian patent published in 1998 - IPC

FIELD: devices for foam preparation. SUBSTANCE: the offered foam generator has vessel with inlet and outlet, device for supply of air and spraying of foam-forming fluid paddle shaft with pressure screw mechanism. The latter is made in form of single-thread eccentric rotor planetary rotating with formation of closed hollows in double-thread stator. Stator is installed in loading hole of vessel. Device for air supply and fluid spray is made in form of pneumohydraulic jet with needle located in annular slot for regulation of air flow rate. Needle internal hollow is communicated with loading hole. Installed in annular hollow is needle for regulation of amount of supply of solution of foam-forming agent. EFFECT: higher efficiency. 3 cl, 3 dwg