HYDRAULIC-DISTRIBUTOR Russian patent published in 1998 - IPC

FIELD: mechanical engineering; load handling facilities; self-propelled boom cranes and other load - hoisting machinery. SUBSTANCE: hydraulic distributor has pressure section with pressure regulator, working sections with spools and drain section, all connected by round section channels. Ring groove are made in pressure and drain channels of working section around spool. Width of groove is less than diameter of channels. EFFECT: quiet characteristic curve of hydraulic distributor provided gradual increase in flow of liquid delivered to consumer. 3 dwg