PERCUSSION ASSEMBLY Russian patent published in 2015 - IPC F15B21/12 F16K1/00 

FIELD: machine building.

SUBSTANCE: percussion assembly contains casing with two channels for work medium entry, each of them is connected with one channel of work medium output via the installed shock valves installed on stocks. Between each shock valve and casing the return spring is installed. In work medium output channel the adjustment screw is installed brought-out to the casing outside surface. In work medium output channel two sylphons are installed, they are connected via stocks with the shock valves. The sylphons are hydraulically connected with each other via the f-shape branch pipe, its free end is brought-out from the casing and plugged with the piston connected with the adjustment screw. The forces of the return springs are made different.

EFFECT: increased operation reliability of the device and simplified design upon decreasing of the materials consumption, ergonomic implementation of the stroke frequency and amplitude control gear of the shock valves.

2 cl, 1 dwg