VIBRATION PUMP Russian patent published in 1994 - IPC

FIELD: pump engineering. SUBSTANCE: pump has case 4 provided with suction valve 13 at the top part of the pump, electromagnet vibrator connected to power source through a cable passed trough opening 3 of the case and switching aperture and shock-absorber 1 which divides space of the case into driving and working chambers, and piston 6 positioned in the working chamber and coupled with the vibrator via a rod received in the central opening of the shock-absorber. The shock- absorber is provided with branch pipe 2 with a ring projection on inner surface. Branch pipe is fitted with interference in opening 3 of case 4 and the cable is received in branch pipe 2 and is tightly enclosed by its projection. The rod is provided with a space step fitted with interference in opening of the shock-absorber. EFFECT: enhanced efficiency. 3 dwg