REGULATING DEVICE FOR HYDRAULIC SECTION OF SELF-ADVANCING SUPPORT Russian patent published in 1997 - IPC

FIELD: mining industry. SUBSTANCE: this is intended for stopes in coal mines with powered support. Regulating device has preliminary set motion valves connected through multiple-conductor armored cable with regulating valves for delivering working fluid under pressure to consumers with large inflow of working fluid. Consumers with insignificant inflow of working fluid are connected through multiple-conductor cable line directly with valves of preliminary regulation. Device is made up of integral valving unit with connecting units at its both sides. Extending from its connecting holes are longitudinal bores passing through entire valving unit and coupled at one side directly with consumers of limited amount of working fluid, and at other side - with preset motion control valves located at angle of 90 deg. to longitudinal bores in one plane above seating holes of valving unit. Input connectors can be located in two rows on side surface of regulating device. Input connectors for large consumers of working fluid are located in one plane with seating holes for preset motion control valves. EFFECT: high efficiency. 2 cl, 4 dwg