VIBRATION PUMP Russian patent published in 1996 - IPC

FIELD: manufacture of pumps for handling liquids. SUBSTANCE: vibration pump is provided with centering insert made in form of two truncated cones located on either side of piston. Bronze semispheres are located on insert on side of larger diameter. Vibration pump is also provided with water-repellent cover plates fitted on inner surface of housing, induction sensors of feedback circuit, permanent magnets and excitation amplifiers engageable with sensors and connected with their outputs. Input of excitation amplifier is connected with electromagnets of magnetic drive. Arranged in housing symmetrically relative to piston inside centering insert are flexible bellows made in form of truncated cones. EFFECT: enhanced reliability. 2 dwg