HYDRAULIC SYSTEM Russian patent published in 2016 - IPC F15B11/00 

FIELD: engines and pumps.

SUBSTANCE: invention relates to positive-displacement hydraulic engines designed for conversion of working fluid flow energy into mechanical energy of the output link moving reciprocally. Proposed device can be used in design of multifunctional hydraulically-driven machines. Technical result is achieved by the fact that in the hydraulic system containing a power and auxiliary cylinders, safety valve and pressure valve, piston- and rod cavity of the power cylinder are connected, via a distributor, to a power supply and drainage, an auxiliary cylinder, the rod of which is kinematically connected to the body of the power cylinder, has one cavity which is connected to the output of the safety valve communicating, via the input, with the power cylinder piston cavity, and connected to the input the pressure valve, the hydraulic control cavity of which is interconnected with the rod cavity of the power cylinder, while the pressure valve connects the cavity of the auxiliary cylinder with the piston cavity of the power cylinder.

EFFECT: higher reliability, simplified design of hydraulic system and reduction of material consumption.

1 cl, 2 dwg