PNEUMATIC HYDRAULIC DRIVE Russian patent published in 2009 - IPC F15B11/72 

FIELD: engineering industry.

SUBSTANCE: pneumatic hydraulic drive is designed for the operating equipment drive. Pneumatic hydraulic drive consists of a housing cover filled in with working liquid; at that, inside the cover there located is chamber to be filled in with compressed air, and chamber for supplying working medium to hydraulic motor. Chambers are made so that they can change their volume by means of air pressure applied to them and contained in compressed air bottles and supplied to chambers through distributor; at that, channels with check valves of housing cover are connected to working liquid capacity, and working medium supply pipelines of housing cover are connected to hydraulic motor; at that, for controlling compressed air there used in addition is pressure gage, antifreezing safety device, water separator, reducing reduction gear, check valve, electromagnetic valve, shutoff valve; for controlling working medium flow there used is a throttle, filter is installed in the capacity, and for cooling the liquid there installed is radiator; besides, open spring plates are installed in the chambers for taking the chambers together with springs back to initial position after they have been actuated.

EFFECT: improving reliability.

2 dwg