HYDRAULIC VIBRATOR Russian patent published in 2016 - IPC F15B21/12 

FIELD: machine building.

SUBSTANCE: invention relates to hydraulic machinery and can be used in various industries, for example, in construction, in mining, as well as to testing structures at dynamic effects. Hydraulic vibrator comprises hydraulic cylinder 1 having piston 2 with rod 3 and unit 4 for controlling hydraulic cylinder 1, second hydraulic cylinder 5 having piston 6 with rod 7 and unit 8 for controlling hydraulic cylinder 5. Axis of symmetry of one hydraulic cylinder rod is a continuation of axis of symmetry of rod of other hydraulic cylinder. Amplitude of vibrations of second piston 6 is less than amplitude of vibrations of first piston 2.

EFFECT: invention is aimed at expansion of functional capabilities by enabling application on working end of rod of additional vibrations.

5 cl, 4 dwg