MULTIPLIER Russian patent published in 2021 - IPC F15B3/00 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the field of mechanical engineering and can be used in hydraulic stands and in the implementation of hydraulic fracturing in rock massifs of various strength. The device contains a glass with a lid, forming a low-pressure cavity with a piston rigidly mounted on the rod, placed in the specified glass, and a cylinder, one end of which is closed, and the other is mounted on the rod, while the inner cavity of the cylinder is a high-pressure cavity. The glass is installed with the bottom on the flange and at its bottom, and a through hole is made in the flange through which the stem is passed, while at one end the cylinder is closed by a flange-fitting fixed to it, and at the other end a plunger is installed in it with an emphasis of its central part in rod, while the glass with the cylinder is fixed to each other by means of a detachable connection of a flange and a flange - fitting.

EFFECT: separation of low and high pressure cavities.

1 cl, 1 dwg